Soda Systems & SuperChil™ Refrigeration Units · Top Mounted Ice Maker Installations Water line Drain Power outlet Heating and air conditioning ducts Location — Avoid placing

Technician’s Handbook

This manual is updated as new information and models are released. Visit our website for the latest manual.

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America’s Quality Choice in Refrigeration

Soda Systems & SuperChil™Refrigeration Units

Part Number STH12 9/10

Safety Notices

As you work on Manitowoc equipment, be sure to pay close attention to the safety notices in this handbook. Disregarding the notices may lead to serious injury and/or damage to the equipment.

Throughout this handbook, you will see the following types of safety notices:

Procedural Notices

As you work on Manitowoc equipment, be sure to read the procedural notices in this handbook. These notices supply helpful information which may assist you as you work.

Throughout this handbook, you will see the following types of procedural notices:

NOTE: Text set off as a Note provides you with simple, but useful, extra information about the procedure you are performing.

! WarningText in a Warning box alerts you to a potentialpersonal injury situation. Be sure to read theWarning statement before proceeding, and workcarefully.

! CautionText in a Caution box alerts you to a situation inwhich you could damage the equipment. Be sureto read the Caution statement before proceeding,and work carefully.

ImportantText in an Important box provides you withinformation that may help you perform aprocedure more efficiently. Disregarding thisinformation will not cause damage or injury, but itmay slow you down as you work.

Read These Before Proceeding:

! CautionProper installation, care and maintenance areessential for maximum performance and trouble-free operation of your Manitowoc equipment. Ifyou encounter problems not covered by thishandbook, do not proceed, contact ManitowocFoodservice Group. We will be happy to provideassistance.

ImportantRoutine adjustments and maintenanceprocedures outlined in this handbook are notcovered by the warranty.

! WarningPERSONAL INJURY POTENTIAL

Do not operate equipment that has been misused,abused, neglected, damaged, or altered/modifiedfrom that of original manufactured specifications.

We reserve the right to make product improvements at any time. Specifications and design are subject to change without notice.

Part Number STH12 9/10 5

Table of Contents

General InformationModel Numbers . . . . . . . . . . . . . . . . . . . . . 9How to Read a Model Number . . . . . . . . . 10Accessories . . . . . . . . . . . . . . . . . . . . . . . 10Special Applications . . . . . . . . . . . . . . . . 11Model/Serial Number Location . . . . . . . . 11Warranty Information . . . . . . . . . . . . . . . . 11

InstallationPre-installation Checklist . . . . . . . . . . . . . 13Top Mounted Ice Maker Installations . . . 15S250-M Dimensions . . . . . . . . . . . . . . . . . 16MII-250 Dimensions . . . . . . . . . . . . . . . . . 18MII-302 Dimensions . . . . . . . . . . . . . . . . . 20MII-250 Installation Kit . . . . . . . . . . . . . . . 22MII-302 Installation Kit . . . . . . . . . . . . . . . 23Refrigeration Units . . . . . . . . . . . . . . . . . . 25Safe Installation Dos and Don’ts . . . . . . . 28Location Requirements . . . . . . . . . . . . . . 30Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . 34Plumbing/Water Supply . . . . . . . . . . . . . . 38Preparing Ice Bank – Non-ERC . . . . . . . . 39Preparing Ice Bank with ERC . . . . . . . . . 41

Component IdentificationTypical System . . . . . . . . . . . . . . . . . . . . . 43Connections . . . . . . . . . . . . . . . . . . . . . . . 44

MaintenanceMaintenance Schedule . . . . . . . . . . . . . . . 49Cleaning and Sanitizing the Dispensing Valves and Product Lines . . . . . . . . . . . . 54Sanitizing . . . . . . . . . . . . . . . . . . . . . . . . . 58Shipping, Storage and Relocation . . . . . 62

OperationHow the Multiplex Works . . . . . . . . . . . . . 63Differences Between the TS & SS Units . 64Equipment Setup Procedure (Non-ERC) 71

6 Part Number STH12 9/10

Start-up (Non-ERC) . . . . . . . . . . . . . . . . . 72Sequence of Operation (Non-ERC) . . . . 74Start-up (with ERC) . . . . . . . . . . . . . . . . . 76Sequence of Operation (with ERC) . . . . 78Equipment Setup Procedure (with ERC) 82Equipment Close Procedure — All Units 84

TroubleshootingElectronic Refrigeration Control (ERC) Model Error Codes . . . . . . . . . . . . . . . . . . . . . . . 87Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . 98Problem Cross-reference Guide . . . . . . . 100CO2 Gas System . . . . . . . . . . . . . . . . . . . 101Carbonated Water System . . . . . . . . . . . 104Circulating System . . . . . . . . . . . . . . . . . 111Compressed Air System . . . . . . . . . . . . . 112Dispensing Valve and Tower . . . . . . . . . 114Electrical System . . . . . . . . . . . . . . . . . . . 119Refrigeration System . . . . . . . . . . . . . . . . 120Syrup System . . . . . . . . . . . . . . . . . . . . . . 123Water Booster System . . . . . . . . . . . . . . 125Water Filter System . . . . . . . . . . . . . . . . . 127When the Brix is OFF . . . . . . . . . . . . . . . 128

Component Check ProceduresTest Procedures: MPC 64A Timer/Selection Pad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131Dual Transformers . . . . . . . . . . . . . . . . . 133New MPC84A Portion Control Board . . . 134MOVs Field Testing . . . . . . . . . . . . . . . . . 140Test Procedures: MPC84C Timer/Selection Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141Back-flow Preventer Maintenance . . . . . 144Head Pressure Control Valve . . . . . . . . . 145Charging Multiplex Remote Refrigeration Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147Compressor & Remote Condenser . . . . 148Agitator Condenser . . . . . . . . . . . . . . . . . 149Carbonation System A or B . . . . . . . . . . 150Circulation System A or B . . . . . . . . . . . 151ERC Control Board, Keypad & Display . 152Programming / Auto Set . . . . . . . . . . . . . 153


ERC Component (Output) Connector Layout 154ERC Sensor (Input) Connector Layout . 154

Component SpecificationsRefrigeration Unit Specifications . . . . . . 155S-250M Specifications . . . . . . . . . . . . . . . 156MII-302 Specifications . . . . . . . . . . . . . . . 156

ChartsRefrigerant Charge . . . . . . . . . . . . . . . . . . 157Operating Pressures . . . . . . . . . . . . . . . . 161McDonald’s Models History . . . . . . . . . . . 163Sustained Draw Curve Charts . . . . . . . . . 164

DiagramsWiring Diagrams . . . . . . . . . . . . . . . . . . . . 167Soda Wiring Diagrams . . . . . . . . . . . . . . . 185Super-Chil Wiring Diagrams . . . . . . . . . . 200Circuit Schematics . . . . . . . . . . . . . . . . . . 212Ice/Beverage Units Diagrams . . . . . . . . . 231


This Page Intentionally Left Blank


General Information

Model NumbersThis manual covers the following models:

(A) Air Cooled (W) Water Cooled (R) Remote Cooled

2803A04 2803W04 2803R04

2803AX04 2803WX04 2803RX04

2803A04 2803W04 2803R04

11MA04 11MW04 11MR04

11MAX04 11MAW04 11MRX04

11MA04 11MW04 11MR04

42MA04 42MW04 42MR04

42MAX04T 42MWX04T 42MRX04T

44MA04 44MW04 44MR04

44MAX04T 44MWX04T 44MRX04T

44EAX04T 44EWX04T 44ERX04T

50MA04 50MW04 50MR04

50MAX04 50MWX04 50MRX04

50MA04Q/T 50MW04Q/T 50MR04Q/T

SC180A SC180W SC180R

SC180AX SC180WX SC180RX

SC340A SC340W SC340R


SC1000A SC1000W SC1000R


SC2000A SC2000W SC2000R


Ice/Beverage Dispensers

MII-302 S-250M


How to Read a Model Number

ICE/BEVERAGE MODEL NUMBERS

AccessoriesDepending on store type and location, various optional equipment (such as CO2 Panel, water filter kit, water booster kit, etc.) may be added to this system. Install and connect any optional equipment in the desired location according to the installation instructions provided with these kits/equipment.

Special Configuration

04 - R404a refrigerant

Model Prefix Model Suffix

Model Base

11M A 04 x

A - Air-cooledAX - Air-cooled, internationalR - RemoteRX - Remote, internationalW - Water-cooledWX - Water-cooled, international

Condenser Type

2803 & SC180 - 1/3 hp11M & SC340 - 1/2 hp44M, 42M & SC1000 - 1 hp44E - 1 hp, TUV Approved50M & SC2000 - 2.2 hp

S - Ice/Beverage Dispenser

MII - Ice/Beverage Dispenser

M - Multiplex

Ice Capacity

Model Prefix Model Suffix

Model Base

S–250–M


Special Applications

ATTENTION: MARINE INSTALLATIONS

NOTE: This unit must be secured to the vessel during installation. Models with part numbers beginning with the letters TS are NOT marine listed.

OUTDOOR APPLICATIONS

TS Multiplex Beverage Recirculating units are approved and listed by Underwriters Laboratories (UL). However they are not UL approved for weather exposure applications. These units must be installed in areas where adequate protection from the elements is provided, all other models are ETL listed.

Model/Serial Number LocationThese numbers are required when requesting information from your local Manitowoc Distributor, service representative, or Manitowoc Foodservice. The model and serial number are listed on the OWNER WARRANTY REGISTRATION CARD. They are also listed on the MODEL/SERIAL NUMBER DECAL affixed to the unit.

Warranty InformationConsult your local distributor for terms and conditions of your warranty. Your warranty specifically excludes all beverage valve brixing, general adjustments, cleaning, accessories and related servicing.

! WarningThis unit is for use on vessels over 66 ft (20 m) inlength. This unit must not be installed in the enginespace of a gasoline-powered ship.

! WarningPersonal Injury Potential

Do not operate equipment that has been misused, abused, neglected, damaged, or altered/modified from that of original manufactured specifications.


Your warranty card must be returned to activate the warranty on this equipment. If a warranty card is not returned, the warranty period can begin when the equipment leaves the factory.

No equipment may be returned without a written Return Materials Authorization (RMA). Equipment returned without an RMA will be refused at the dock and returned to the sender at the sender’s expense.

Please contact your local distributor for return procedures.


Installation

Pre-installation ChecklistWhen installing any system, first make sure the major components are available. Generally the major components necessary for an installation are:

B-I-B System also:

Bulk Syrup System also:

B-I-B connectors

B-I-B regulator set

B-I-B rack

B-I-B syrup boxes

Syrup connectors for Bulk tank

Gas connectors for Bulk tank

Bulk syrup tanks


Post Mix System:

Double Check:

CO2 regulator set

Beverage dispenser

Beverage tubing

CO2 tank

Carbonator

Stepless (Oetiker) clamps

Chain for CO2 tank

Do you have enough space to install the dispenser or a dispenser and top mounted cuber?

Does top mounted cuber (if utilized) have a minimum of 6 inches (15.3 cm) clearance on all sides?

Is the countertop level?

Can the countertop support the weight of the dispenser, or the dispenser/cuber combination plus the weight of the stored ice?


Also consider the location of the following items before installation:

Top Mounted Ice Maker Installations

Water line

Drain

Power outlet

Heating and air conditioning ducts

Location — Avoid placing the dispenser and/or ice machine near heat sources such as radiators, ovens, refrigeration equipment and direct sunlight.

Clearances — Six inch (15.2 cm) clearance on all sides of the icemaker is needed.

Front of icemaker to be flush with front of dispenser — The front of the icemaker must be flush with the front of the dispenser. When the icemaker is flush with the front of the dispenser, some icemakers may overhang at the back of the dispenser.

Drains — A separate drain line is required for the ice machine, in addition to a drain line for the ice/beverage dispenser.

Dispensers require an adapter kit to install some top-mounted icemakers. Contact your local distributor for the correct adapter kit.


S250-M Dimensions

I

H

B

A

EF

G

D

C

A39.81"

(101.1 cm)

B30.00"

(76.2 cm)

C9.94"

(25.2 cm)

D4.44"

(11.3 cm)

E22.63"

(57.5 cm)

F28.00"

(71.1 cm)

G31.13"

(79.1 cm)

H20.00"

(50.8 cm)

I27.44"

(69.7 cm)


S250-M FOOTPRINT

A B C D E

30.00"(76.2 cm)

26.00"(66.0 cm)

8.00"(20.3 cm)

7.30"(18.5 cm)

11.00"(27.9 cm)

F G H I J

15.00"(38.1 cm)

20.81"(52.8 cm)

3.00"(7.6 cm)

22.81"(57.9 cm)

31.13"(79.1 cm)

A

B

DC

EG

I

J

H

F

Minimum Area for Cutout

Maximum Area for Cutout


MII-250 Dimensions

N

ML

KH

P

D EF

G

C

B

A

A39.00"

(99.1 cm)

B12.50"

(31.8 cm)

C30.00"

(76.2 cm)

D1.50"

(3.8 cm)

E9.94"

(25.2 cm)

F13.50"

(34.3 cm)

G20.00"

(50.8 cm)

H30.50"

(77.5 cm)

K28.38"

(72.1 cm)

L22.50"

(57.2 cm)

M21.69"

(55.1 cm)

N1.75"

(4.4 cm)

P28.44"

(72.2 cm)

Front View

Back View

Bottom View

3/8"-16 Thread

Mounting Holes for optional

legs


MII-250 FOOTPRINT

A B C D E

30.00"(76.2 cm)

26.00"(66.0 cm)

8.00"(20.3 cm)

8.00"(20.3 cm)

11.00"(27.9 cm)

F G H I J

12.00"(30.5 cm)

13.50"(34.3)

22.00"(55.9cm)

24.00"(61.0 cm)

31.00"(78.7 cm)

A

B

C

Maximum Area for Cutout D

F

E

3/4" NPT Fitting

Drainpan

G

H

I

J

3/8"-16 Thread

Mounting Holes for Optional

Legs

Minimum area for Cutout: Install

conduit to the back of opening to

allow forward

movement for service

of flex manifold.


MII-302 Dimensions

A

HK

L

D

M

NO

PQ

F E

GJ

C

B

A33.25"

(84.5 cm)

B12.50"

(31.8 cm)

C42.75"

(108.6 cm)

D1.38"

(3.5 cm)

E5.59"

(14.2 cm)

F9.10"

(23.1 cm)

G12.16"

(30.9 cm)

H31.00"(78.7)

J15.78"

(40.1 cm)

K28.78"

(73.1 cm)

L22.50"

(57.2 cm)

M0.82"

(2.1 cm)

N26.97"

(68.5 cm)

O30.47"

(77.4 cm)

P33.75"

(85.7 cm)

Q37.16"

(94.4 cm)


MII-302 FOOTPRINT

A B C D

42.75"(108.6 cm)

38.75"(98.4 cm)

8.00"(20.3 cm)

8.00"(20.3 cm)

E F G H

17.38"(44.1 cm)

12.00"(30.5 cm)

8.54"(21.7 cm)

12.63"(32.1 cm)

I J K

20.50"(52.1 cm)

24.00"(61.0 cm)

31.00"(78.7 cm)

A

B

CMaximum Area for Cutout

D

F

E

3/4" NPT Fitting

Drainpan

H

I

J

K

Minimum area for Cutout: Install

conduit to the back of opening to allow forward movement for service of

flex manifold.

Cutouts for Extended Splash Panel Drain Tube

G

0.50(1.3)


MII-250 Installation Kit

No. Part Number Description Qty.

1 00854998 Ell 1/2 x 3/8 Barb SS 2

2 00861304 Splicer 3/8 x 3/8 Barb 7

3 00861306 Splicer 1/2 x 1/2 Barb 3

4 5018595 Splicer Elbow SS 1/2 x 1/2 2

5 5030996 Elbow 1/4 x 3/8 Barb SS 7

6 5030997 Elbow 1/4 x 1/2 Barb SS 1

7 5030998 U-bend 1/2 x 1/2 WI - 1/2 Stem 3

Carb Water to Left Manifold

Plain Water to Left ManifoldSyrup Tubes

to Valves

Carb Water to Right Manifold

Plain Water to Right Manifold

3/8" ID Tubing from Conduit (7X)


Use Only for One Conduit Plain Water

Line

Use Only for Two Conduit Carb Water

LineCountertop

To Conduit


MII-302 Installation Kit

WATER AND SYRUP LINESThis kit facilitates connecting the unit to a 12-16 line conduit, with one or two carbonated water recirculating systems, and one or two plain water supply lines, and maximum 8 syrup product lines.

The unit is shipped with connecting lines terminating under the unit. It will be necessary to make a 90° turn

No. Part Number Description Qty.

1 00854998 Ell 1/2 x 3/8 Barb SS 2

2 00861304 Splicer 3/8 x 3/8 Barb 6

3 00861306 Splicer 1/2 x 1/2 Barb 6

4 5011751 Fitting 3/8" Y Barb 1

5 5018595 Splicer Elbow SS 1/2 x 1/2 2

6 5030996 Elbow 1/4 x 3/8 Barb SS 8

7 5030997 Elbow 1/4 x 1/2 Barb SS 4

8 5030998 U-bend 1/2 x 1/2 WI - 1/2 Stem 3

Carb Water to Left Manifold

Plain Water to Left Manifold

Syrup Tubes to

Valves

Carb Water to Right Manifold

Plain Water to Right Manifold



Use Only for One Conduit

Plain Water LineUse Only for Two Conduit

Carb Water LineCountertop

To Conduit


down through the counter top, to connect to the conduit. It will also be necessary to fully insulate this new added section before passing through the counter top, or before hooking to main conduit.

CARB WATER LINES• Unit has two carb water lines, one for each flex

manifold.

• Use 2 @ 1/2" x 1/2" elbow and 6-12" of 1/2" conduit tubing to make connection bend from unit down through hole in counter top, to mate with conduit.

• Conduit with only two circulating carb water lines.

• Use two @ 1/2" barb U-bend adapters (invert one) to connect the two carb circulating lines from conduit to the two carb water lines from the unit. Use short 1/2" conduit line to connect the two U-bends as shown (item #8).

• Conduit with four, two sets of recirculating carb water lines.

• Use two @ 1/2" barb U-bend adapters, to connect each set of circulating conduit lines to each carb water line from unit as shown (8).

PLAIN WATER LINES• Unit has two plain water lines, one for each flex

manifold.

• Use two @ 3/8" x 1/2" elbows and 6-12" of 1/2" conduit tubing to make connection bend from unit down through hole in counter top, to mate with conduit.

• Conduit with only one plain water line.

• Use one @ 1/2" U-bend adapter, to connect the two plain water lines to one plain water line from conduit (item #3).

• Conduit has two plain water lines.

• Use two @ 1/2" straight adapters to connect each plain water line from unit to each plain water line from conduit as shown (3).


SYRUP LINES• Unit has eight syrup lines.

• Use seven @ 1/4 x 3/8" and one @ 1/4 x 1/2" elbows and proper size conduit tubing to make connection bend from unit down through hole in counter top, to mate with conduit.

• FULLY INSULATE (no air gaps) and finish with tape wrap, all these connections from unit, through 90° bend connection and down close to straight conduit connection. Locate unit properly on counter, and secure to counter. Finish connections to conduit with 3/8" x 3/8" and 1/2" x 1/2" straight barb connectors, and U-bend adapters, as needed.

• FULLY INSULATE and finish with tape wrap all these connections to the conduit.

Refrigeration Units• Refrigeration units require stand or 6" (15.2 cm)

legs. Refrigeration unit cannot be placed directly on floor.

• Conduit can be run through floor or ceiling chase.

• Syrup supply can be located on stand or adjacent to refrigeration unit.

CLEARANCES

Control Side (Right) 18" (45.7 cm)

Tower Connection Side (Left) 12" (30.5 cm)

Back Side 6" (15.2 cm)

Ceiling 18" (45.7 cm)


REMOTE CONDENSER LINESET REQUIREMENTS

1. Both the discharge and liquid remote condensing lines must be kept to a minimum distance for maximum performance. All Multiplex systems are capacity rated to 100 ft (30.5 m) tubing distance between the compressor and condenser. If you have another brand condenser, please add additional charge for the condenser (example: up to three (3) pounds for a MAC condenser).

2. Any vertical rise 25 ft (7.62 m) or greater must have a manufactured or installed trap (bend), in the discharge refrigeration line from the compressor to the remote condenser. A trap is necessary for every additional 25 ft (7.62 m) vertical rise. When excessive vertical rise exists, this trap allows oil to reach the condenser and return to the compressor.

ImportantIf you have a MAC Multi-Pass condenser pleaseadd three (3) pounds additional charge.

ImportantIf you exceed the 100ft line set length add.72oz/ft of line set run (one way) for every footover 100ft, to the UNIT charge


3. The easiest method to create a trap is to bend the tubing (smoothly, no kinks) into the trap form.

4. The trap(s) must be of minimum height of 3" (7.6 cm) and a width of 6" (15.2 cm) to minimize oil accumulation. The traps can also be bent out of the refrigeration tubing. Carefully bend the tubing down 12", and then sweep the tubing back up.

5. It is critical that the remote condensing line size specifications for the specific model be maintained. The specifications are 1/2" discharge and 3/8" liquid lines.

To the Condenser

Discharge Line Trap Every 25 Vertical ft. (7.62 m)

3 ft (.9 m) (minimum) of Discharge Line Trap at the Compressor

Compressor

3" (7.6 cm) x 6" (15.2 cm) Maximum Trap Area

Discharge Line Condenser Trap


Safe Installation Dos and Don’ts

! WarningRead the following warnings before beginning aninstallation. Failure to do so may result inpossible death or serious injury.

• Adhere to all National and Local Plumbing and Electrical Safety Codes.

• Turn OFF incoming electrical service switches when servicing, installing, or repairing equipment.

• DO NOT throw or drop a CO2 cylinder. Secure the cylinder(s) in an upright position with a chain.

• DO NOT store CO2 cylinders in temperature above 125°F (51.7°C) near furnaces, radiator or sources of heat.

! WarningDO NOT connect the CO2 cylinder(s) directly tothe product container. Doing so will result in anexplosion causing possible death or injury. It is bestto connect the CO2 cylinder(s) to a regulator(s).

! WarningCarbon Dioxide (CO2) displaces oxygen. Exposureto a high concentration of CO2 gas causes tremors,which are followed rapidly by loss of consciousnessand suffocation. If a CO2 gas leak is suspected,particularly in a small area, immediately ventilate thearea before repairing the leak. CO2 lines and pumpsmust not be installed in an enclosed space. Anenclosed space can be a cooler or small room orcloset. This may include convenience stores withglass door self serve coolers. If you suspect CO2may build up in an area, venting of the BIB pumpsand/or CO2 monitors must be utilized.


• DO check that all flare fittings are tight. This check must be performed with a wrench to ensure a quality seal.

• DO inspect pressure on regulators before starting up equipment.

• DO protect eyes when working around refrigerants.

• DO use caution when handling metal surface edges of all equipment.

• DO handle CO2 cylinders and gauges with care. Secure cylinders properly against abrasion.

• DO store CO2 cylinder(s) in well ventilated areas.

• DO NOT exhaust CO2 gas (example: syrup pump) into an enclosed area, including all types of walk-in coolers, cellars, and closets.

• DO NOT release CO2 gas from old cylinder.

• DO NOT touch refrigeration lines inside units; some may exceed temperatures of 200°F (93.3°C).

NOTE: All utility connections and fixtures must be sized, installed, and maintained in accordance with Federal, State, and Local codes.


Location Requirements

SODA REFRIGERATION UNIT “QUICK-PICK” SELECTION CHART

Nu

mb

er

of

Dis

pen

sin

g S

tati

on

s

Bu

sin

es

s L

eve

l*

1

2 3

4

Up

to 6

gal

/ 3

L

of s

yrup

/da

y o

r 2

80

drin

ks/d

ay

(2,0

00

gal/y

r)

Mo

del

280

34

0 ft

/ 1

2 m

M

axi

mu

m

Con

du

it L

en

gth

Mo

del

11

M

10

0 ft

/ 3

0 m

M

axim

um

Co

ndu

it L

eng

th

Mo

del

44

M25

0 ft

/ 8

0 m

M

axi

mu

m

Con

du

it L

en

gth

Mo

del

44

M2

50

ft /

80

mM

axim

umC

on

duit

Len

gth

Up

to

12

gal

/ 4

5 L

o

f syr

up/d

ay

or

56

0 d

rinks

/da

y (4

,00

0 g

al/y

ear

)

Mo

de

l 11

M

100

ft /

30

m

Ma

xim

um

C

ond

uit

Le

ngt

h

Mo

del

11

M

10

0 ft

/ 3

0 m

M

axim

um

Co

ndu

it L

eng

th

Mo

del

44

M

250

ft /

80

m

Ma

xim

um

C

ond

uit

Le

ngt

h

Mo

del

44

M2

50

ft /

80

mM

axim

umC

on

duit

Len

gth

Up

to

21

gal

/ 7

9 L

of s

yrup

/da

y o

r 9

80

drin

ks/d

ay

(7,5

00

gal/y

r)

Mo

del

44M

25

0 ft

/ 8

0 m

M

axi

mu

m

Con

du

it L

en

gth

Mo

del

44

M

25

0 ft

/ 8

0 m

M

axim

um

Co

ndu

it L

eng

th

Mo

del

44

M

250

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Select a location for the refrigeration unit that meets the requirements of the building plans, local codes, and personnel. The unit must be positioned for free airflow as well as for future service. The following minimum requirements must be met:

• 100 GPH (379 LTR/hr) potable water supply Models 2803/11/38; 200 GPH (757 LTR/hr) potable water supply Models 44/50

• Beverage quality CO2 gas (bulk or bottled supply) with a minimum 3/8" (.96 cm) line

• One Bag-In-Box (BIB) container of each post mix syrup flavor.

NOTE: Refer to nameplate on side of refrigeration unit for voltage and amperage specifications. Make all electrical connections at the junction box located at the top rear of unit. Optional equipment may require additional power supplies.

NOTE: Potable water connections to the equipment must comply with local plumbing code requirements, particularly the back-flow prevention requirements.

PLUMBING REQUIREMENTS – GENERALIncoming water supply must be provided before installation of the refrigeration unit and must comply with local plumbing requirements.

1. A minimum 1" (2.54 cm) water supply line with a manual shut-off valve must be plumbed at least 6 ft (183 cm) from the unit. The incoming water supply pressure must not exceed 70 psi static (4.8 bar) and be no less than 40 psi (2.8 bar) dynamic. If supply water pressure is greater than 70 psi (5 bar), a water regulator will be required.

2. Locate the drain hose, bracket, and two screws provided in the installation kit. Attach the drain hose to the water bath overflow tube located on the bottom of the refrigeration unit.


3. Connect the water manifold supply line, located on the bulkhead panel in the motor compartment to the main water supply. The main water supply shut-off valve must remain in the OFF position. If a water filter is to be installed, connect the line to the outlet fitting of the filter. Plumb according to applicable plumbing codes.

Drain Hose Connection

4. When a water cooled condenser is installed, a copper supply line (not supplied with unit) must be plumbed to the 3/8" (.965 cm) male flare fitting installed in the water shut-off assembly. The shut-off must be placed in the OFF position. A copper drain line (not supplied) is to be connected to the outlet fitting of the water cooled condenser and routed to the floor drain.

Screw

Drain Hose

Bottom of Unit

Bracket


WATER SUPPLY1. Use the built in fill valve that is already plumbed

into the unit.

2. An appropriate floor drain is required within 6 ft (2 m) of the unit.

3. Potable water connections to the equipment must comply with the basic plumbing code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration. Verify local plumbing code requirements.


Electrical

GENERAL

MINIMUM CIRCUIT AMPACITYThe minimum circuit ampacity is used to help select the wire size of the electrical supply. (Minimum circuit ampacity is not the unit’s running amp load.) The wire size (or gauge) is also dependent upon location, materials used, length of run, etc., so it must be determined by a qualified electrician.

ELECTRICAL REQUIREMENTSRefer to unit’s Model/Serial Plate for voltage/amperage specifications.

! WarningAll wiring must conform to local, state andnational codes.


SPECIFICATIONS

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&

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180

120/

60/1

230/

50/1

20.3

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25A

16A

1/3

hp.4

6 kW

11M

&

SC

340

120/

60/1

230/

50/1

21.5

10.7

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16A

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7 kW

44M

, 42

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20A

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15A

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GROUNDING INSTRUCTIONS

This appliance must be grounded. In the event of malfunction or breakdown, grounding provides a path of least resistance for electric current to reduce the risk of electric shock.

NOTE: The refrigeration units are not equipped with a cord.

! WarningThe unit must be grounded in accordance withnational and local electrical codes.

! WarningImproper connection of the equipment-groundingconductor can result in a risk of electric shock.The conductor with insulation having an outersurface that is green with or without yellow stripesis the equipment grounding conductor. If repair orreplacement of the cord or plug is necessary, donot connect the equipment-grounding conductorto a live terminal. Check with a qualifiedelectrician or serviceman if the groundinginstructions are not completely understood, or ifin doubt as to whether the appliance is properlygrounded. Do not modify the plug provided withthe appliance — if it will not fit the outlet, have aproper outlet installed by a qualified electrician.


! WarningWhen using electric appliances, basicprecautions must always be followed, includingthe following:

a. Read all the instructions before using the appliance.

b. To reduce the risk of injury, close supervision is necessary when an appliance is used near children.

c. Do not contact moving parts.

d. Only use attachments recommended or sold by the manufacturer.

e. Do not use outdoors.

f. For a cord-connected appliance, the following shall be included:

• Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.

• Unplug from outlet when not in use and before servicing or cleaning.

• Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or is dropped or damaged in any manner. Contact the nearest authorized service facility for examination, repair, or electrical or mechanical adjustment.

g. For a permanently connected appliance — Turn the power switch to the off position when the appliance is not in use and before servicing or cleaning.

h. For an appliance with a replaceable lamp — Always unplug before replacing the lamp. Replace the bulb with the same type.

i. For a grounded appliance — Connect to a properly grounded outlet only. See Grounding Instructions.


Plumbing/Water Supply

PLUMBING POTABLE WATER

A 1" (2.54 cm) ID copper inlet water line equipped with a 3/4" (1.905 cm) FPT adapter with shut-off must be supplied by plumber at rear of equipment. Appropriate floor drains must be provided within 6 ft (183 cm) of each unit installed.

NOTE: The carbonator in this unit is provided with a dual check valve type back-flow preventer, which conforms to ASSE 1032. The Model 50M & 44M vented backflow preventer conforms to ASSE 1022.

Potable water connections to the equipment must comply with the basic plumbing code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration. Verify local plumbing code requirements.

ModelRequired

Water Pressure

Drain Connections

Water Supply

2803 & SC180

40 – 70 psig(2.8 – 4.9 bar)

3/4" IDwithin 6 ft (2 m)

3/8" IDEVA Line

11M & SC340

40 – 70 psig(2.8 – 4.9 bar)

3/4" ID within 6 ft (2 m)

3/8" IDEVA Line

44M, 42M &

SC1000

40 – 70 psig(2.8 – 4.9 bar)


1/2" IDEVA Line

50M 40 – 70 psig(2.8 – 4.9 bar)


1/2" IDEVA Line

SC2000 40 – 70 psig(2.8 – 4.9 bar)


1/2" IDEVA Line


Preparing Ice Bank – Non-ERC

BUILDING AN ICE BANK1. At this time, fill the unit water bath tank to the top,

or within 1/2" (1.3 cm) of the top minimum, of the overflow tube. Use a garden hose or another water supply to do this.

NOTE: A manual fill valve is incorporated into the water circuit to the carbonator tank. This valve can be used to manually add water lost for any reason. Do not leave this valve ON constantly, only use it for filling and topping off. The water bath must be drained, flushed, and refilled every six months.

2. Turn ON the switch labeled “Refrigeration”. Allow unit to run for about 15 minutes before proceeding to step 3.

3. Turn ON the switch labeled “Agitator”.

NOTE: Turn this switch OFF to perform any operations in the water bath area.

With water bath water temperature of 65°F (18°C), ice will begin to form on the evaporator coils in approximately 2 hours. The unit will build a full ice bank in approximately 4 to 6 hours (depending on ambient water temperature).

4. Before turning on the carbonator or circulator switch, verify that the pump box assembly has been mounted and connected to the unit and the appropriate syrup and water has been supplied.

Drain Tube

Overflow Tube

Water Bath Tank

Tab Clamp


5. Turn on the main water supply to the booster assembly. Verify the booster is plugged in and that the accumulator tank valve is open. (If the system has an optional “Out-of-Syrup” device, verify that it is unplugged.)

6. Verify the pump is running. Place the valve on the right side of the pump box in the purge position until all air bubbles have passed through the line. Turn the valve back to “dispense”. Plug the Out-of-Syrup device power cord into an appropriate wall outlet at this time (if supplied).

NOTE: Verify that the pump box holding tank is full before proceeding.

7. Turn on the circulator and carbonator switches. The carbonator must run for approximately 1 to 3 minutes and shut off. The circulator must run continuously. Verify that water is returning to the water bath through the return bulk head fitting.

8. Go to the tower(s) and brix the valves. Using a syrup separator and volume cup, adjust the flow rate of the carbonated water to two fluid ounces per second. Then, using the separator and a brix cup, adjust the syrup flow rate for a ratio of carbonated water to syrup.

ImportantWait until a thin layer of ice has begun to form onthe evaporator before proceeding any further.


Preparing Ice Bank with ERC

BUILDING AN ICE BANK1. At this time, fill the unit water bath tank to the top,

or within 1/2" (1.3 cm) of the top minimum, of the overflow tube. Use a garden hose or another water supply to do this.

NOTE: A manual fill valve is incorporated into the water circuit to the carbonator tank. This valve can be used to manually add water lost for any reason. Do not leave this valve ON constantly, only use it for filling and topping off. The water bath must be drained, flushed, and refilled every six months.

2. Main power to unit must be on. Power delay of 30 seconds occurs when power applied. “Pd30”

3. Press COMP/AGIT switch on keypad display.

4. Agitator will come on immediately and compressor delay will start. “Cd99” will count from 180 to 0.

NOTE: Turn this switch OFF to perform any operations in the water bath area.

With water bath water temperature of 65°F (18°C), ice will begin to form on the evaporator coils in approximately 2 hours. The unit will build a full ice bank in approximately 4 to 6 hours (depending on ambient water temperature).

Drain Tube

Overflow Tube

Water Bath Tank

Tab Clamp


5. Turn on the main water supply to the booster assembly. Verify the booster is plugged in and that the accumulator tank valve is open. (If the system has an optional “Out-of-Syrup” device, verify that it is unplugged.)

6. Verify the pump is running. Place the valve on the right side of the pump box in the purge position until all air bubbles have passed through the line. Turn the valve back to “dispense”. Plug the Out-of-Syrup device power cord into an appropriate wall outlet at this time (if supplied).

NOTE: Verify that the pump box holding tank is full before proceeding.

7. Turn on the circulator and carbonator. The carbonator must run for approximately 1 to 3 minutes and shut off. The circulator must run continuously. Verify that water is returning to the water bath through the return bulk head fitting.

8. Go to the tower(s) and brix the valves. Using a syrup separator and volume cup, adjust the flow rate of the carbonated water to two fluid ounces per second. Then, using the separator and a brix cup, adjust the syrup flow rate for a ratio of carbonated water to syrup to 5 to 1.

ImportantWait until a thin layer of ice has begun to form onthe evaporator before proceeding any further.


Component Identification

Typical System

Conduit (In Wall)

6 Valve Soda Tower

8 Valve Soda Tower

Water Booster

Air Compressor

Conduit

CO2 Panel

Multiplex Refrigeration

Unit

CO2 Tank

Bag-In-Box (BIB) Syrup

BIB Rack

Water Filters

BIB Pumps


Connections

MODEL 2803 CONNECTIONSJohn Guest Fittings

Drain Hose

Control Switches

1/4" Plastic CO2 Line from

Carbonator

Right Hand Opening for

Conduit Supply Lines


MODEL 11M CONNECTIONS

John Guest Fittings

Drain Hose Control Switches

Opening for Conduit Supply

Lines


MODEL 42, 44, & 50M CONNECTIONS

John Guest Fittings

Drain Hose Control Switches

(Non-ERC)

Opening for Conduit Supply

Lines

ERC Controls


ERC CONTROL BOARD OUTPUT CONNENCTIONS

L

L/N

C R AGITATIOR CIRCB

CARB A CARB B CIRC A

EARTH

PLUG THIS PIN


ERC CONTROL BOARD INPUT CONNENCTIONS

12

11

10

9 8

7 6

5 4

3 2

1

CO

2TS

TD

TW

TB

TA

W

L

ICE

C

A A

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A B

H

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WA

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H P

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HPC

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CO

MH

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PR

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D+5

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TPU

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PR

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DC

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DIS

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C A

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P W

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Maintenance

Maintenance ScheduleThis section provides a list of periodic maintenance tasks and the scheduled frequency required to ensure the proper operation of your Multiplex dispensing equipment. To ensure quality beverages, prevent downtime, and reduce costs, these tasks must be performed as indicated.

PERIODIC MAINTENANCE FOR SOFT DRINK EQUIPMENT (LISTED BY MAJOR COMPONENTS)

Dispensing stations

Daily (365 times per year)

• Take temperature of finished drinks. Pour off the first and take the temperature of the second drink. The proper temperature of drinks must be 38°F (4°C) or less.

• Remove nozzles and diffusers from each dispensing valve. Clean with soap and warm water (not hot). Rinse with carbonated water and reinstall.

• Flush all dispenser drains. Pour hot water down drains at closing.

Beverage conduits

Every 4 months (3 times per year)

• Inspect beverage conduits for damage. Re-insulate and seal any uninsulated areas.

• Inspect floor chases and seal any open chase ends.

Air compressor

Monthly (12 times per year)

• Drain condensate water from air compressor tank.


• Inspect air compressor filter and replace if clogged. Air filter must be replaced every 6 months.


• Inspect air compressor to verify cut-in at 70 psi (4.8 bar) and cut-out at 90 psi (6.3 bar). Adjust pressure switch if necessary.

• Inspect system for air leaks and repair as required.

Refrigeration unit


• Clean the refrigeration unit air-cooled condenser using a vacuum cleaner. If equipped with water-cooled condenser, verify the water discharge temperature is at 105°F (41°C). Adjust water modulating valve if necessary.

• Inspect water bath to verify water level is at the top of stand pipe. If below, add water and repair water makeup device. If excessive amount of water is flowing over stand pipe, locate leak within bath and repair.

• Inspect ice bank within the water bath to verify proper size ice bank and clarity. Look for uniform, 2" to 4" thick ice bank.

• Drain, clean, and refill water bath.

• Inspect agitator motor and ensure proper operation.

• Inspect the circulating motor/pump assembly. Clean strainer and oil motor.

• Inspect the carbonating motor/pump assembly. Clean strainer and oil motor.

• Inspect entire system for leaks and repair as required.

Water filters


• Verify that incoming water pressure is not less than 40 psi (2.8 bar) or greater than 60 psi (4.1 bar). If equipped with a water regulator, verify proper setting of 55 psi (3.8 bar). Adjust if necessary.

• If pressure is low, inspect water filter cartridges to ensure they are able to supply adequate water pressure under normal system flow. Replace if unable to provide minimum 20 psi (1.4 bar) under load.


Syrup supply


• Clean general area of syrup hookup with soap and warm water. Rinse off all soap.


• Inspect syrup lines for proper flavor identification labels. Replace labels if necessary.

• Disconnect syrup containers. Clean connector with soap and warm water. Rinse with plain water and reconnect to syrup containers.

CO2 gas supply


• Inspect pressure setting at CO2 high pressure regulator. Verify proper 90 psi (6.3 bar) pressure setting. Adjust if necessary.

• Inspect pressure setting at syrup pressure regulators. Verify propter pressure setting. Adjust if necessary.

• Inspect system for CO2 leaks, repair as required.

PERIODIC MAINTENANCE FOR SOFT DRINK EQUIPMENT (LISTED BY SCHEDULED FREQUENCY)


• Take temperature of finished drinks. Pour off the first and take the temperature of the second drink. The proper temperature of drinks must be 38°F (4°C) or less.

• Remove nozzles and diffusers from each dispensing valve. Clean with soap and warm water (not hot). Rinse with carbonated water and reinstall.

• Flush all dispenser drains. Pour hot water down drains at closing.

• Clean general area of syrup hookup with soap and warm water. Rinse off all soap.


• Using Brix cup and syrup separator, check for proper carbonated water flows (standard flow: 5 oz. in 4 seconds, fast flow: 10 oz. in 4 seconds)


and syrup to water ratios at each dispensing station. Adjust as required.

• Inspect beverage conduits for damage. Re-insulate and seal any uninsulated areas.

• Inspect floor chases and seal any open chase ends.

• Inspect air compressor filter and replace if clogged. Air filter must be replaced every 6 months.

• Inspect air compressor to verify cut-in at 70 psi (4.8 bar) and cut-out at 90 psi (6.3 bar). Adjust pressure switch if necessary.

• Inspect system for air leaks and repair as required.

• Clean the refrigeration unit air-cooled condenser using a vacuum cleaner. If equipped with water-cooled condenser, verify the water discharge temperature is at 105°F (41°C). Adjust water modulating valve if necessary.

• Inspect water bath to verify water level is at the top of stand pipe. If below, add water and repair water makeup device. If excessive amount of water is flowing over stand pipe, locate leak within bath and repair.

• Inspect ice bank within the water bath to verify proper size ice bank and clarity. Look for uniform, 2" to 4" thick ice bank.

• Drain, clean, and refill water bath.

• Inspect agitator motor and ensure proper operation.

• Inspect the circulating motor/pump assembly. Clean strainer and oil motor.

• Inspect the carbonating motor/pump assembly. Clean strainer and oil motor.

• Inspect entire system for leaks and repair as required.

• Verify that incoming water pressure is not less than 40 psi (2.8 bar) or greater than 60 psi (4.1 bar). If equipped with a water regulator, verify proper setting of 55 psi (3.8 bar). Adjust if necessary.


• If pressure is low, inspect water filter cartridges to ensure they are able to supply adequate water pressure under normal system flow. Replace if unable to provide minimum 40 psi (1.4 bar) under load.

• Inspect syrup lines for proper flavor identification labels. Replace labels if necessary.

• Disconnect syrup containers. Clean connector with soap and warm water. Rinse with plain water and reconnect to syrup containers.

• Inspect pressure setting at CO2 high pressure regulator. Verify proper 90 psi (6.3 bar) pressure setting. Adjust if necessary.

• Inspect pressure setting at syrup pressure regulators. Verify propter pressure setting. Adjust if necessary.

• Inspect system for CO2 leaks. Repair as required.


Cleaning and Sanitizing the Dispensing Valves and Product Lines

MAINTENANCE SCHEDULE

Every day

Dispensing valves

Remove nozzles and diffusers and soak in mild detergent cleaning solution. Scrub parts with small bristle brush taking care to clean small crevices and O-ring grooves. Turn OFF power to dispensing valves. Scrub exterior surfaces, including bottom splash area and actuator lever, with cleaning solution. Reassemble diffusers and nozzles. Wipe dry exterior surfaces before turning ON power.

Drip pan and drain hose

Wash with mild detergent. Rinse with clean water.

Quick disconnects

Wash with mild detergent. Rinse with potable water.

Weekly

Outside, dispenser cabinet

Wash with clean water and mild detergent. Wipe dry.

Every 3 months

Syrup circuits

Sanitize each syrup circuit. See “Cleaning and Sanitizing Procedure”.

Water bath Drain, melt ice and clean using detergent and brush; rinse with potable water. Do not use water over 140°F (60°C).

Every 6 months

Condenser Vacuum fins or use soft bristle brush (scrub brush).

Air purifier filter (if equipped)

Replace.


CLEANING EQUIPMENT AND SUPPLIES• Recommended cleaner: Any caustic-base (low

sudsing, non-perfumed, easily rinsed) detergent solution which provides a minimum 2% sodium hydroxide. The solution must be prepared in accordance with the manufacturer’s instructions. Solution temperature must be between 90°F (32°C) and 110°F (43°C). Temperatures in excess of this can cause internal damage to the dispensing valve components.

• Recommended sanitizer: Any sanitizer which provides a minimum of 120 parts per million (120 milligrams per liter) of available chlorine. Solution temperature must be between 90°F (32°C) and 110°F (43°C). Temperatures in excess of this can cause internal damage to the dispensing valve components.

• Two five gallon (figals) syrup tanks and fittings, cleaned and sanitized (one for cleaner; one for sanitizer)

• Containers for cleaner and sanitizer solutions

• Clean, non-abrasive cloths

• Buckets

• Small Brush

• Extra Nozzles

• Extra Jumpers


CLEANING AND SANITIZING PROCEDURENOTE: Cleaning and sanitizing is not required for potable water circuits. Potable water lines must remain connected and operational during the cleaning and sanitizing procedures for syrup circuits.

Cleaning and dispensing valves

1. Disconnect each syrup container from its product line. Remove product from the lines by purging with clean warm tap water until syrup has been fully purged from the product lines and valves.

2. Clean all lines and fittings with cleaning solution and rinse with clean, room temperature water to remove all traces of residual product.

Cleaning the product lines

1. To clean each valve product line, attach the valve product lines to the pressure tank containing the cleaning solution. Make sure each line is completely filled. Pressurize the lines by pulsing the valves.

Pressurizing the product lines

A. For 15 seconds turn dispensing valve ON, OFF, and then immediately ON again for 15 cycles.

B. Allow the valve to remain flowing for 3 minutes.

C. Repeat pulsing and flowing the valves again until all cleaning solution has been used.

! CautionIt is required that the Carbonated Water Linesremain connected and operational duringcleaning and sanitizing of the syrup circuits.Sanitizing of the valve without the CarbonatedWater side operation may leave bacteria in thenozzle, diffuser, and syrup tube.


2. Flush the cleaning solution from the lines with clean water after a minimum of 3 minutes, by pulsing the valves as described above.

3. Remove the nozzles and the diffuser assemblies from the valves. Clean with cleaning solution. Agitate the assemblies to ensure assemblies are clean. Place them in a container of sanitizing solution for 15 minutes. Wearing sanitary gloves, remove the nozzles and diffuser assemblies from the sanitizing solution. Drain each until dry and reassemble to the valves.

4. Attach each valve product line to the pressure tank containing the sanitizing solution. Be sure all connections are cleaned and sanitized before connecting to each product line.

5. Pressurize and fill the lines with sanitizing solution. Make sure lines are completely filled, Allow the sanitizing solution to flow through each valve while activating the valves for 15 cycles.

A. Leave valves OFF and allow to stand pressurized for 30 minutes.

B. Activate the valves for two (2) cycles. Flush remaining sanitizer continuously through the valves.

6. Reconnect the syrup containers to their respective circuits. Prepare the unit for operation.

7. Draw drinks to refill lines and flush the sanitizing solution from the dispenser. Taste the beverage to verify that there is no off-taste (chlorine).

! CautionDo not allow cleaning and sanitizing solutions toremain in syrup systems longer thanrecommended contact time. Exceeding contacttime will result in damage to valve components.


Sanitizing

BEVERAGE SYSTEM CLEANING

Sanitize the beverage system at initial start-up as well as regularly scheduled cleaning. The drain pan must be in place under soda valves, to carry away detergent and sanitizing agents that will be flushed through valves.

BAG-IN-BOX SYSTEM SANITATIONThe procedure below is for the sanitation of one syrup circuit at a time. Repeat to sanitize additional circuits.

You will need the following items to clean and sanitize the Bag-in-Box (BIB) beverage system:

• Three (3) clean buckets

• Plastic brush or soft cloth

• Mild detergent

• Unscented bleach (5% Na CL O) or Commercial sanitizer

• Bag-In-Box bag connector

1. Prepare the following in the buckets:

• Bucket 1 — warm to hot tap water for rinsing.

• Bucket 2 — mild detergent and warm to hot water.

! WarningFlush sanitizing solution from syrup system.Residual sanitizing solution left in system couldcreate a health hazard.

! WarningWhen using cleaning fluids or chemicals, rubbergloves and eye protection must be worn.


• Bucket 3 — mix a solution of unscented bleach (5% Na CL O) or commercial sanitizer and warm to hot water. Mixture should supply 100 PPM available chlorine (1/4 oz. bleach to 1 gallon water).

2. Disconnect the “syrup-line side” of the BIB connector.

3. Rinse connector with warm tap water.

Bagside

connector


4. Connect syrup connector to BIB connector and immerse both into Bucket 1. A “bag-side” connector can be created by cutting the connector from an empty disposable syrup bag.

5. Draw rinse water through system until clean water is dispensed. Most beverage valves allow the syrup side to be manually activated by depressing the syrup pallet.

6. Connect Bucket 2 to system.

7. Draw detergent solution through system until solution is dispensed.

8. Repeat steps 2-7 until all syrup circuits contain detergent solution.

9. Allow detergent solution to remain in the system for 5 minutes.


11. Draw sanitizing solution through system until solution is dispensed.

12. Repeat step 11 until all syrup circuits contain sanitizer solution.

13. Allow sanitizer solution to remain in system for 15 minutes.

14. Remove nozzles and diffusers from beverage valves.

15. Scrub nozzles, diffusers and all removable valve parts (except electrical parts) with a plastic brush or a soft cloth and the detergent solution.

16. Soak nozzles, diffusers and removable valve parts (except electrical parts) in sanitizer for 15 minutes.

17. Replace nozzles, diffusers and valve parts.


19. Draw rinse water through system until no presence of sanitizer is detected.

20. Attach syrup connectors to BIBs.

21. Draw syrup through system until only syrup is dispensed.

22. Discard first 2 drinks.


FIGAL BEVERAGE SYSTEM1. Prepare the following in three clean Figal tanks:

• Rinse tank - fill with room temperature tap water.

• Detergent tank - mix approved beverage system cleaner with warm water as directed.

• Sanitizing tank - mix a solution of unscented bleach (5% Na CL O) or commercial sanitizer and warm to hot water. Mixture should supply 100 PPM available chlorine (1/4 oz. bleach to 1 gallon water).

2. Disconnect all product and water lines from product tanks and remove carbonator.

3. Locate the Figal syrup tank for the circuit to be sanitized. Remove both quick disconnects from the Figal syrup tank. Rinse quick disconnects in tap water.

4. Connect rinse tank to the syrup line. Draw clean rinse water through the valve until syrup is flushed from the system.

5. Connect detergent tank to the syrup line and draw detergent through the valve for two minutes. Then, allow remaining detergent to stay in the system for five minutes.

6. Connect rinse tank to the syrup line. Draw clean rinse water through the valve until detergent is flushed from the system.

7. Remove valve nozzle and diffuser as shown in Daily Cleaning instructions. Using a plastic brush or a soft cloth and warm water, scrub the nozzle, diffuser, bottom of the dispensing valve and cup lever, if applicable.

8. Place removable valve parts (EXCEPT solenoids) in sanitizing solution for 15 minutes.

9. Replace valve diffuser and nozzle on the beverage valve.

10. Connect sanitizer tank to the syrup line and draw sanitizer through the valve for two minutes. Allow sanitizer to remain in the system for a minimum of 15 minutes.


11. Reconnect syrup and carbonated water lines.

12. Draw syrup through the lines to rinse the system. Discard drinks until at least two cups of satisfactory tasting beverage are dispensed through the valve.

Shipping, Storage and Relocation

! CautionBefore shipping, storing, or relocating this unit,syrup systems must be sanitized. After sanitizing,all liquids (sanitizing solution and water) must bepurged from the unit. A freezing environmentcauses residual sanitizing solution or waterremaining inside the unit to freeze, resulting indamage to internal components.


Operation

How the Multiplex WorksModel 2803 — a 1/3 HP refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 6 gal (3 L) of syrup/day or 280 drinks/day (2,000 gal/yr) with a 40 ft (12 m) maximum conduit length. This is a remote refrigeration unit that derives its peak draw capacity from the reserve ice bank produced from a capillary tube refrigeration system. This system is controlled to cycle ON and OFF by the operation of the ice bank control. The sensing bulb that controls the ice bank is located on an adjustable bracket in the water bath.

Model 11M — a 1/2 HP refrigeration unit that will provide premix carbonated beverages and chilled carbonated water for up to 12 gal (45 L) of syrup/day or 560 drinks/day (4,000 gal/year) with a 100 ft (30 m) maximum conduit length. This is a remote refrigeration unit that derives its peak draw capacity from the reserve ice bank produced from a capillary tube refrigeration system. This system is controlled to cycle ON and OFF by the operation of the ice bank control. The sensing bulb that controls the ice bank is located on an adjustable bracket in the water bath.

Model 42M — a 1 HP refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 50 gal (190 L) of syrup/day or 3,060 drinks/day (18,200 gal/yr) with a 250 ft (80 m) maximum conduit length. This refrigeration unit is a remote refrigeration unit that derives its peak capacity from the reserve ice bank produced from a TXV system. This system is controlled to cycle ON and OFF by the operation of the ice control. The sensing probe that controls the ice bank, is located on an adjustable bracket in the water bath.

Model 44M — a 1 HP refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 50 gal (190 L) of syrup/day or 3,060 drinks/day (18,200 gal/yr) with a 250 ft (80 m) maximum conduit length. This refrigeration unit is a remote refrigeration unit that derives its peak capacity from the reserve ice bank produced from a TXV system. This system is controlled to cycle ON and OFF by the operation of the ice control. The sensing probe that controls the ice bank, is located on an adjustable bracket in the water bath.


Model 50M — a 2.2 HP Pre-mix refrigeration unit that will provide pre-mix carbonated beverages and chilled carbonated water for up to 42 gal (159 L) of syrup/day or 2,000 drinks/day (15,000 gal/yr) with a 350 ft (107 m) maximum conduit length. This refrigeration unit is a remote refrigeration unit that derives its peak capacity from the reserve ice bank produced by the operation of the compressor. This system is controlled to cycle ON and OFF by the operation of the ice bank control. The sensing bulb that controls the ice bank is located on an adjustable bracket in the water bath.

Differences Between the TS & SS UnitsMultiplex soda and water chillers may have three different series numbers. Starting in 2007 some no longer begin with an “SS”; they now begin with a “TS”. Starting in 2008, units with ERC (Electronic Refrigeration Controls) end with an “E”. The following shows you how to tell the difference between the TS version and the SS.

• The TS uses common components from Manitowoc Ice makers to assist in product and parts availability.


• The TS compressor is mounted with bolts instead of studs.

• TS remote and water-cooled back panel connections are offset to protect fittings.


WATER MANIFOLD TS

• TS air-cooled condenser comes standard with a filter.

Two Stainless Steel log style manifolds

• One regulated supply for carbonator pumps.

• One unregulated supply for non-carb drinks and water bath fill.

Other Connections• Connections are made in the

water bath compartment.

• Separate plain water manifold eliminates need to plug off during installation.


ELECTRICAL TS• Electrical compartment has been moved up on the unit to eliminate

water intrusion potential from the pump compartment.• All components are now 208/230V. This eliminates the need for a

neutral wire.

• New unit has service connections in the electrical compartment. Allows more room to work and more reliable connection.

• Pump protection switch has been moved to the pump compartment to eliminate potential leak point in electrical compartment.


WATER BATH ACCESS SS

WATER BATH ACCESS TS

• Has a round hole in the front and back panels with no edge trim to protect lines.

• End panel has two ovals in the rear of the panel with edge trim to help protect conduit lines.

• All panels have large oval access holes with interchangeable covers.

• Front panel has 3 hole cover for water and CO2 line routing.• Back panel has solid cover.• End panel has one open cover and one solid cover.• Open cover provides wide ledge for conduit line protection.


SERVICE ACCESS SS

• Front panel was solid and did not allow easy access for service.• Switch panel was mounted flush to end panel.

SERVICE ACCESS TS

• Front panel is split to allow front access to the compressor compartment.

• Switches are recessed and the edge has trim panel to protect fingers from sheet metal edges.


SERVICE ACCESS TS WITH ERC

• Service Switch — (SER) switch, press to send ID on power line network.

• Wink Function — LED flashes “Ion” to indicate wink function. Press program switch (PGM) to disable wink function.

LED Display

Service SwitchProgram Switch

SERPGM

CIRC B

COMP/AGIT CARB A CARB B CIRC A CIRC B


Equipment Setup Procedure (Non-ERC)1. Ensure that all valve nozzles are attached to the

valves.

2. Observe pressure of CO2 high pressure tank of 500 psi (34 bar) or more, or bulk CO2 tank of 150 psi or more. Primary regulator set at 90 psi (6 bar) and the secondary regulator set at 35 psi (2.4 bar).

3. Observe the control panel to verify that all pressure gauges are set at correct operating pressures.

4. Check the syrup tanks to make sure a sufficient number of tanks are connected in series to satisfy business volume.

5. Clean syrup inlet and outlet quick disconnects at the same time tanks are replaced. Rinse disconnects in clean potable water.


Start-up (Non-ERC)1. Fill the refrigeration unit water bath tank with

water to within 1/2" (1.27 cm) of the top of the overflow tube.

2. Open the manual water shut-off valve to the water cooled condenser (if applicable).

3. Turn ON the rocker switch labeled “Refrigeration” to begin building an ice bank.

4. Turn ON the rocker switch labeled “Agitator”.

NOTE: On TS units 3 & 4 are combined into 1 switch.

5. Ice will begin to form on the evaporator coils in approximately 2 hours.

6. The refrigeration unit will build an ice bank in approximately 4 to 6 hours.

7. If optional CO2/Water Control Panel has been installed on the refrigeration unit, refer to the installation instructions for operation and testing the circuits for leaks.

8. The carbonation circuits “A” and “B,” as well as the syrup circuits must be checked for leaks and possible cross circuits before turning ON the water supply to carbonator pumps.

9. Turn on main water supply. Set incoming regulator to 55 psi on the CO2 panel; 25 psi for the Model 11M root beer system’s internal regulator (must be lower than CO2 supply pressure). Once water is supplied to the unit, air needs to be purged from the carbonator tank. Do so by lifting press relief valve tab until water comes out of relief valve.

10. Turn on main CO2 supply. Set regulator initially to 90 – 100 psi. For the Model 11 Root Beer system, set regulator initially to 26 psi; it can be raised incrementally to 30 psi if there is excessive foaming.

11. Set bag-in-box syrup tank push pressure CO2 regulator to 65 – 70 psi. For the Model 11 Root Beer system, set push pressure CO2 regulator to 35 – 40 psi.


PLACING THE CARBONATION SYSTEM IN OPERATION

1. Open the CO2 gas supply valve at CO2 tanks or bulk tank. Adjust the CO2 pressure to 90 psi (6.2 bar).

2. Open relief valve on top of the carbonator tank for 4 seconds to bleed off air in tank.

3. Turn ON the water supply to unit.

4. Turn ON the switch labeled “Carbonator Pump”. Allow carbonator to run and cycle OFF.

5. Activate all valves until a smooth, continuous flow of carbonated water and non-carbonated water appear at the valves.

6. Turn ON switch labeled “Circulator”.

7. Allow at least 1 hour before proceeding to calibration instructions. You may complete the sanitizing instructions during this period.


Sequence of Operation (Non-ERC)

PRE-MIX REFRIGERATION UNIT

Ice Bank Is Required

1. Check water bath for full ice bank.

2. The stabilized water bath operating temperature must be maintained at 33°F (0.6°C) to 35°F (1.7°C).

The following is a sequence of operations for the Multiplex Pre-mix Beverage equipment.

1. Once a drink is dispensed, the following will occur:

A. For a Syrup Tank System, the Pre-mix syrup is manually mixed at the store. Pre-mix beverage is then transferred to a holding tank for supply to the Multiplex system.

B. For a Bag-In-Box System, pre-mix syrup is drawn from a Bag-In-Box by means of a gas driven syrup pump.

2. The carbonator pump (stainless) pulls the 5:1 pre-mix out of the 3 gallon holding tank and injects it into the pre-mix carbonator tank where the CO2 pressure is 35 psi (2.4 bar) on the tank.

3. The circulator pump runs continuously and circulates water bath water through the conduit to provide cooling for all drinks.


Multiplex Pre-mix Beverage System Operation and Layout

Conduit (In Wall)

6 Valve Soda Tower

8 Valve Soda Tower

Water Booster

Air Compressor

Conduit

CO2 Panel

Multiplex Refrigeration

Unit

CO2 Tank

Bag-In-Box (BIB) Syrup

BIB Rack

Water Filters

BIB Pumps


Start-up (with ERC)

PLACING EQUIPMENT IN OPERATIONBefore placing equipment in operation, verify that all requirements for roof mounted Remote Condenser Units (if applicable) have been satisfied. Refer to the instructions on installing the Remote Condenser. Verify proper supply power to unit.

1. Fill the refrigeration unit water bath tank with water to within 1/2" (1.27 cm) of the top of the overflow tube.

2. Open the manual water shut-off valve to the water cooled condenser (if applicable). Refer to “Electronic Control” for control programming sequence.

3. Press “Comp/Agit” to begin building an ice bank.

4. Ice will begin to form on the evaporator coils in approximately 2 hours.

5. The refrigeration unit will build an ice bank in approximately 4 to 6 hours.

6. If optional CO2/Water Control Panel has been installed on the refrigeration unit, refer to the installation instructions for operation and testing the circuits for leaks.

7. The carbonation circuits “A” and “B,” as well as the syrup circuits must be checked for leaks and possible cross circuits before turning ON the water supply to carbonator pumps.

8. Turn on main water supply. Set incoming regulator to 55 psi on the CO2/Water control panel. Once water is supplied to the unit, air needs to be purged from the carbonator tank. Do so by lifting press relief valve tab until water comes out of relief valve.

9. Set bag-in-box syrup tank push pressure CO2 regulator to 60 psi.


PLACING THE SYRUP SYSTEM IN OPERATION1. Open the CO2 gas supply valve at CO2 tanks or

bulk tank. Adjust the CO2 pressure to 90 psi (6.2 bar).

2. Open relief valve on top of the carbonator tank for 4 seconds to bleed off air in tank.

3. Verify the water supply to unit is on.

4. Press the switch labeled “Carb A” (and B if applicable). Allow carbonator to run and cycle OFF.

5. Press the switch labeled “CIRC A” (and “CIRC B” if applicable).

6. Activate all vales until a smooth, continuous flow or carbonated water and non-carbonated water appear at the valves.

7. Allow at least 1 hour before proceeding to calibration instructions. You may complete the sanitizing instructions during this period.


Sequence of Operation (with ERC)

ELECTRONIC CONTROL

Prerequisites

• Potable water must be connected to the carbonator pump circuit.

• The ice bank water bath water must cover the evaporator. The compressor will not start unless the ice bank control probes are immersed in water.

• CO2 must be supplied.

Initial Power-up

The control has a 30-second delay when power is connected, or disconnected and reconnected. The display will show Pd30 - power delay and 30 seconds left in the countdown cycle.

Normal Two Circuit Operation

Pressing the COMP/AGIT button will start the water bath agitator immediately and initiate the 180 second compressor delay. The display will show Cd99 (compressor delay & 99 seconds) and will start to count down from 99 seconds after the first 81 seconds have elapsed. After 180 seconds the compressor and condenser fan motor energize and the COMP/AGIT LED flashes. Pressing the CARB A and CARB B buttons will power the carbonator tank liquid level control. The corresponding LED flashes to indicate the pump is running. Pressing the CIRC A & CIRC B buttons will immediately energize the circulating pumps and energize the LED constantly. The display will show the circulating temperature and show the A circuit. When two circuits are used the readout will alternate between A and B circuits every 5 seconds.

The compressor and condenser fan will continue to run until ice contacts the ice bank control probe closest to the evaporator. When ice contacts the probe, the COMP/AGIT LED lights constantly and the compressor and condenser fan motor de-energize.

As the ice bank melts, the ice bank control probe will lose contact with the ice; the LED will flash and the compressor and condenser fan motor will restart. This cycle will repeat as required depending on load.


Power Interruption

During a power interruption the control will resume from the point of interruption when power is reapplied and the time delay expires. Any switches/components that were energized when power was interrupted will be energized when power is reapplied.

Error Codes

E1 = Low Water Supply Pressure

E2 = Low CO2 Pressure

E3 = Low Water Level - Water Bath

E4 = High Water Bath Temperature

E5 = High Water Supply Pressure

E6 = High Refrigeration Temperature

E7 = High Ice Bank Size (Probe Sensor 2)

E8 = Long Carb A Run Time

E9 = Long Carb B Run Time

NOTE: Shorted Transducer = "----"

Open Transducer = "===="

Error codes will display until corrected.

Control Programming

SER Switch

• For when optional LON communication network is connected.

SER

PGM

CIRC B

CIRC A

COMP/AGIT

CARB A

CARB B

CIRC A

CIRC B


PGM Switch

• Used to enter and exit programming modes.

• Press PGM Switch F000 will display

• Press and hold Carb A switch — Display will indicate Water Bath Temperature

• Press and hold Circ A switch — Display will indicate Discharge Temperature

• Press and hold Circ B switch — Display will indicate Suction Temperature

• Press PGM Switch P000 will display

• Press and hold Carb A switch — Display will indicate Water Pressure

• Press and hold Carb B switch — Display will indicate CO2 Pressure

Press and hold PGM switch for 3 seconds to save settings and exit program mode.

Program Mode 1

To enter, press and hold switch for 3 seconds.

• 0001 will display indicating Mode 1

• Wait 3 seconds — C000 will display

• Press and hold Carb A switch — Display will indicate one of the following:

• CA00 — Low and High Probes are open (carbonator motor is energized)

• CA11 — Low and High Probes are closed (carbonator motor is de-energized)

• CA01 — Low Probe closed (Motor will still be on)


• Press and hold Carb B switch — Display will indicate one of the following:

• Cb00 — Low and High Probes are open (carbonator motor is energized)

• Cb11 — Low and High Probes are closed (carbonator motor is de-energized)

• Cb01 — Low Probe closed (Motor will still be on)

• Press and hold COMP/AGIT switch — Display will indicate one of the following:

• CL 0 — Water level low

• CL 1 — Water level OK

Program Mode 2

Add circulation pumps C & D.

• Press PGM button for 3 seconds — Display shows 0001.

• Press PGM button — Display shows 0002 program mode 2.

• Wait 3 seconds — Display shows -002 = Factory default setting.

• Pressing CIRC A button energizes/de-energizes pump A

• Pressing CIRC B button energizes/de-energizes pump B

• Program CIRC C — Press CARB A button – Display shows -102 = Carb A button energizes/de-energizes pump C

• Program CIRC D — Press CARB B button - Display shows -012 = Carb B button energizes/de-energizes pump D

Press and hold PGM switch for 3 seconds to save settings and exit program mode.


Program Mode 4

Temporarily cancel display of error codes. Cancelling the error codes allows circulating glycol temperatures to be displayed until the error can be corrected.

• Press PGM button for 3 seconds — Display shows 0001.

• Press PGM button three times — Display shows 0004 program mode 4.

• Wait 3 seconds — Display shows -004 = All error codes will be displayed during run mode.

• Press COMP/AGIT button once — Display shows ---4 = error codes will not be displayed during run mode.

NOTE: Disconnecting and reconnecting main power will reset the control board to the factory setting -004 = Error codes will be displayed in the run mode.

Equipment Setup Procedure (with ERC)1. Ensure that all valve nozzles are attached to the

valves.

2. Observe pressure of CO2 high pressure tank of 500 psi (34 bar) or more, or bulk CO2 tank of 150 psi or more. Primary regulator set at 90 psi (6 bar) and the secondary regulator set at 35 psi (2.4 bar).

3. Observe the control panel to verify that all pressure gauges are set at correct operating pressures.

4. Check the syrup tanks or BIB to make sure a sufficient number of tanks are connected in series to satisfy business volume.

5. Clean syrup inlet and outlet quick disconnects at the same time tanks are replaced. Rinse disconnects in clean potable water.


Multiplex Electronic Refrigeration Control (ERC) Programming

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E

(DE

FAU

LT =

“1

273”

) (D

IFF

ER

EN

TIA

L F

IXE

D A

T 2

° A

BO

VE

SE

T P

OIN

T)

PR

ES

S C

IRC

A S

WIT

CH

T

O L

OW

ER

SE

T P

OIN

T

TE

MP

ER

AT

UR

E

PR

ES

S C

IRC

B S

WIT

CH

T

O R

AIS

E S

ET

PO

INT

T

EM

PE

RA

TU

RE

NO

TE

:S

ET

PO

INT

=

CO

MP

RE

SS

OR

OF

F

DIF

FE

RE

NT

IAL

IS F

IXE

D

AT

2°F

AB

OV

E S

ET

PO

INT

C

OM

PR

ES

SO

R O

N

PR

ES

S C

AR

B A

SW

ITC

H T

O

CO

NV

ER

T C

AR

B A

MO

TO

R

TO

CIR

C M

OT

OR

“-

102”

PR

ES

S C

AR

B B

SW

ITC

H T

O

CO

NV

ER

T C

AR

B B

MO

TO

R

TO

CIR

C M

OT

OR

“-

112”

“F00

00”

(TE

MP

ER

AT

UR

E)

PR

ES

S C

AR

B A

SW

ITC

H

TO

SH

OW

WA

TE

R B

AT

H

TE

MP

PR

ES

S C

IRC

A S

WIT

CH

TO

S

HO

W D

ISC

HA

RG

E T

EM

PP

RE

SS

CIR

C B

SW

ITC

H T

O

SH

OW

SU

CT

ION

TE

MP

PRES

S PG

M S

WIT

CH

ON

CE

“P00

0” (

PR

ES

SU

RE

)

PR

ES

S C

AR

B A

SW

ITC

H

TO

SH

OW

WA

TE

R S

UP

PLY

P

RE

SS

UR

EP

RE

SS

CA

RB

B S

WIT

CH

T

O S

HO

W C

O2

PR

ES

SU

RE

“C00

0”

(CO

ND

UC

TIV

ITY

)

PR

ES

S C

OM

P/A

GIT

S

WIT

CH

TO

SH

OW

ICE

B

AN

K P

RO

BE

“CC

11”

= N

O IC

E

CO

MP

RE

SS

OR

ON

; “C

C10

” =

IC

E O

N L

OW

SE

NS

OR

C

OM

PR

ES

SO

R O

FF

“CC

00”

= IC

E B

AN

K T

OO

LA

RG

E (

E7

)

PR

ES

S C

AR

B A

SW

ITC

H

TO

SH

OW

LLC

PR

OB

E“C

A00

” =

NO

WA

TE

RC

AR

B A

MO

TO

R O

N“C

A01

” =

LO

W S

EN

SO

RIN

WA

TE

R, M

OT

OR

ON

“CA

11”

= L

OW

& H

IGH

S

EN

SO

R IN

WA

TE

R,

MO

TO

R O

FF

R

EP

EA

T A

BO

VE

FO

R

CA

RB

B S

WIT

CH

“C

bXX

”

PR

ES

S C

IRC

A S

WIT

CH

T

O S

HO

W W

AT

ER

LE

VE

L P

RO

BE

“C

L 1”

= W

AT

ER

“CL

0” =

LO

W W

AT

ER

(E

3)

PRES

S PG

M S

WIT

CH

ON

CE


MULTIPLEX ELECTRONIC REFRIGERATION CONTROL (ERC) PROGRAMMING

PO

WE

R U

P D

ELA

YS

HO

WS

“Pd3

0”A

ND

CO

UN

TSD

OW

N T

O “P

d00"

SU

PP

LY P

OW

ER

ON

NO

RM

AL

RU

NM

OD

ED

ISP

LAY

SH

OW

SC

IRC

WAT

ER

TEM

P(S

) OR

WAT

ER

BAT

HTE

MP

IN B

EE

RM

OD

E

CO

MP

/AG

ITS

WIT

CH

ON

NO

YE

S

P R

O G

R A

M M

O D

ETO

EN

TER

, PR

ES

S A

ND

HO

LD P

GM

SW

ITC

H F

OR

MIN

IMU

M O

F 3

SE

CO

ND

S, D

ISP

LAY

SH

OW

S “0

001”

TO C

HA

NG

E T

O N

EX

T P

RO

GR

AM

MO

DE

, PR

ES

S P

GM

BU

TTO

N S

EQ

UE

NTI

ALL

Y IN

LE

SS

TH

AN

3 S

EC

ON

DS

FR

OM

EN

TER

(“00

02”,

ETC

)TO

EX

IT, P

RE

SS

AN

D H

OLD

PG

M S

WIT

CH

FO

R M

INIM

UM

OF

3 S

EC

ON

DS

, DIS

PLA

Y S

HO

WS

NO

RM

AL

RU

N M

OD

ERE

SP

EC

TIV

ELE

D C

OM

ES

ON

CO

NS

TAN

T,FL

AS

HE

S IF

LOA

D C

ON

TRO

LC

IRC

UIT

ON

PR

ES

S A

NY

SW

ITC

H T

OTU

RN

ON

LO

AD

OR

LO

AD

CO

NTR

OL

CIR

CU

IT

AG

ITAT

OR

CO

ME

S O

NC

ON

STA

NTL

Y

CO

MP

RE

SS

OR

CO

ME

S O

N A

FTE

RD

ELA

Y, IF

CO

NTR

OL

CIR

CU

ITR

EQ

UIR

ES

EN

TER

PR

OG

RA

M M

OD

E

EX

IT P

RO

GR

AM

MO

DE

PRO

GR

AM

MO

DE

4TE

MP

OR

AR

ILY

DIS

AB

LEE

RR

OR

S

PR

ES

S P

GM

SW

ITC

HTH

RE

E T

IME

S (3

) IN

LES

S T

HA

N 3

SE

CO

ND

SD

ISP

LAY

“000

4”, W

AIT

THR

EE

(3) S

EC

ON

DS

DIS

PLA

Y “-

004”

PRO

GR

AM

MO

DE

3P

RO

GR

AM

TE

MP

ER

ATU

RE

CO

NTR

OL

OF

WAT

ER

BAT

H(B

EE

R)

PR

ES

S P

GM

SW

ITC

H T

WIC

E(2

) IN

LE

SS

TH

AN

3S

EC

ON

DS

, DIS

PLA

Y “0

003”

,W

AIT

TH

RE

E (3

) SE

CO

ND

SD

ISP

LAY

“-00

3”

PRO

GR

AM

MO

DE

2P

RO

GR

AM

ON

E (1

) OR

TW

O (2

)M

OR

E C

IRC

ULA

TIN

G P

UM

PS

PR

ES

S P

GM

SW

ITC

H O

NC

E (1

)IN

LE

SS

TH

AN

3 S

EC

ON

DS

DIS

PLA

Y “0

002”

, WA

IT T

HR

EE

(3) S

EC

ON

DS

DIS

PLA

Y “-

002”

PRO

GR

AM

MO

DE

1R

EA

D C

ON

DU

CTI

VIT

Y,TE

MP

ER

ATU

RE

,P

RE

SS

UR

EC

HA

NG

E U

NIT

S

WA

IT 3

SE

CO

ND

SD

ISP

LAY

SH

OW

S “C

000”

CO

MP

RE

SS

OR

DE

LAY

SH

OW

S“C

d99”

AN

DC

OU

NTS

DO

WN

TO “C

d00”

ER

RO

RC

OD

E(S

)N

O

YE

S

ER

RO

R C

OD

ED

ISP

LAY

S T

ILL

CO

RR

EC

TED

MU

LTIP

LEE

RR

OR

S C

YC

LEP

GM

MO

DE

4O

VE

RR

IDE

S

E1

= Lo

w W

ater

Sup

ly P

ress

ure

E2

= Lo

w C

o2 P

ress

ure

E3

= Lo

w W

ater

Lev

el -

Wat

er B

ath

E4

= H

igh

Wat

er B

ath

Tem

pera

ture

E5

= H

igh

Wat

er S

uppl

y P

ress

ure

E6

= H

igh

Ref

riger

atio

n Te

mpe

ratu

reE

7 =

Hig

h Ic

e B

ank

Siz

e (P

robe

Sen

sor 2

)E

8 =

Long

Car

b A

Run

Tim

eE

9 =

Long

Car

b B

Run

Tim

eS

horte

d Tr

ansd

ucer

= "-

---"

Ope

n Tr

ansd

ucer

= "=

==="


“C00

0”(C

ON

DU

CTI

VIT

Y)

PR

ES

S C

OM

P/A

GIT

SW

ITC

H T

O S

HO

W IC

EB

AN

K P

RO

BE

“CC

11” =

NO

ICE

CO

MP

RE

SS

OR

ON

“CC

10”=

ICE

ON

LO

WS

EN

SO

R C

OM

PR

ES

SO

RO

FF“C

C00

” = IC

E B

AN

K T

OO

LAR

GE

(E7)

PR

ES

S C

AR

B A

SW

ITC

HTO

SH

OW

LLC

PR

OB

E“C

A00

” = N

O W

ATE

RC

AR

B A

MO

TOR

ON

“CA

01”=

LO

W S

EN

SO

RIN

WAT

ER

, MO

TOR

ON

“CA

11” =

LO

W &

HIG

HS

EN

SO

R IN

WAT

ER

,M

OTO

R O

FFR

EP

EAT

AB

OV

E F

OR

CA

RB

B S

WIT

CH

“CbX

X”

PR

ES

CIR

C A

SW

ITC

HTO

SH

OW

WAT

ER

LEV

EL

PR

OB

E“C

L_1”

= W

ATE

R“C

L_0”

= L

OW

WAT

ER

(E3)

PR

ES

S C

OM

P/A

GIT

SW

ITC

H, D

ISP

LAY

SH

OW

S “-

--4”

IND

ICAT

ING

ER

RO

RC

OD

ES

WIL

L B

ED

ISA

BLE

D U

NTI

LN

EX

T P

OW

ER

OFF

/ON

SE

QU

EN

CE

“F00

0” (T

EM

PE

RAT

UR

E)

PR

ES

S C

AR

B A

SW

ITC

HTO

SH

OW

WAT

ER

BAT

HTE

MP

PR

ES

S C

IRC

A S

WIT

CH

TO S

HO

WLI

QU

ID L

INE

TE

MP

PR

ES

S C

IRC

B S

WIT

CH

TO S

HO

WS

UC

TIO

N T

EM

P

“P00

0” (P

RE

SS

UR

E)

PR

ES

S C

AR

B A

SW

ITC

HTO

SH

OW

WAT

ER

SU

PP

LY P

RE

SS

UR

EP

RE

SS

CA

RB

BS

WIT

CH

TO

SH

OW

CO

2P

RE

SS

UR

E

PR

ES

S C

OM

P/A

GIT

SW

ITC

H O

NC

E, D

ISP

LAY

=”1X

X3"

WH

ER

E X

X=

SE

TP

OIN

T TE

MP

ER

ATU

RE

(DE

FAU

LT =

“127

3”)

(DIF

FER

EN

TIA

L FI

XE

D A

T2°

AB

OV

E S

ET

PO

INT)

PR

ES

S C

IRC

A S

WIT

CH

TO L

OW

ER

SE

T P

OIN

TTE

MP

ER

ATU

RE

PR

ES

S C

IRC

B S

WIT

CH

TO R

AIS

E S

ET

PO

INT

TEM

PE

RAT

UR

E

NO

TE:

SE

T P

OIN

T =

CO

MP

RE

SS

OR

OFF

DIF

FER

EN

TIA

L IS

FIX

ED

AT 2

°F A

BO

VE

SE

T P

OIN

TC

OM

PR

ES

SO

R O

N

PR

ES

S C

AR

B A

SW

ITC

H T

OC

ON

VE

RT

CA

RB

A M

OTO

RTO

CIR

C M

OTO

R“-

102”

PR

ES

S C

AR

B B

SW

ITC

H T

OC

ON

VE

RT

CA

RB

B M

OTO

RTO

CIR

C M

OTO

R“-

112”

PR

ES

S P

GM

SW

ITC

HO

NC

E (1

)

PR

ES

S P

GM

SW

ITC

HO

NC

E (1

)

TO C

HA

NG

E U

NIT

S

WH

EN

“F00

0” P

RE

SS

CO

MP

/AG

IT S

WIT

CH

ON

CE

(1) T

O C

HA

NG

ETE

MP

ER

ATU

RE

UN

ITS

TO C

EN

TIG

RA

DE

“FC

00”

WH

EN

“P00

0” P

RE

SS

CO

MP

/AG

IT S

WIT

CH

ON

CE

(1) T

O C

HA

NG

EP

RE

SS

UR

E U

NIT

S T

OB

AR

“Fb0

0”


Troubleshooting

Electronic Refrigeration Control (ERC) Model Error Codes• Error codes will interrupt the temperature display

and stay active until the error is corrected.

• If multiple errors are present, the errors will rotate and display every 5 seconds.

• Resetting errors — After correcting the problem, the respective switch for the error must be cycled OFF and then ON to reset.

• Disconnecting and reconnecting power will erase all errors.

Error Code Error Cause

E1 Low Water Supply Pressure Lower than 5 psi for 5 Seconds

E2 Low CO2 Pressure Lower than 10 psi for 5 Seconds

E3 Low Water Level – Water Bath

Must Cover Top of Evaporator

E4 High Water Bath Temperature Water Bath Temperature Greater Than 45°F

E5 High Water Supply Pressure Water Pressure Greater than 75 psi

E6 High Refrigeration Temperature

Discharge Line Temperature Greater than 190°F

E7 High Ice Bank Size Ice Contacting Center Ice Bank Probe

E8 Long Carb A Run Time Energized for 7 Continuous Minutes

E9 Long Carb B Run Time Energized for 7 Continuous Minutes


ERROR CODES E1, E2, & E3 FLOWCHARTEI

YES

NO

NO

RM

ALLY

CAU

SED

BY

WA

TER

P

RE

SS

UR

E <

5 P

SI

FOR

5 S

ECO

ND

SM

US

T S

TAY

AB

OV

E

10 P

SI T

O C

OR

REC

T

E3E4

E5E6

E7E8

E9E2

NO

YES

NO

NO

YES

YES

/EN

D

NO

TE: T

HAT

A

LL C

AR

B

MO

TOR

S AN

D

ALL

CIR

C

MO

TOR

S W

ILL

GO

OFF

, WIT

H

THIS

ER

RO

RC

OM

PRES

SOR

AN

D

AG

ITA

TOR

STA

Y O

N

NO

RM

ALLY

CAU

SED

B

Y C

O2

PR

ES

SU

RE

<1

0 P

SI F

OR

5

SE

CO

ND

S M

US

T S

TAY

AB

OV

E 1

5 PS

I TO

CO

RR

ECT

NO

RM

ALLY

CA

US

ED

BY

WA

TER

LE

VE

L IN

W

ATE

R B

ATH

B

ELO

W P

RO

BE

C

ON

DU

CTO

RS

GO

INTO

PR

OG

RA

M

MO

DE

1 P

RES

SU

RE

R

EA

DO

UT

“P00

0”

GO

INTO

PR

OG

RA

M

MO

DE

1 P

RES

SU

RE

R

EA

DO

UT

“P00

0”

PR

ES

S C

AR

B A

BU

TTO

N T

O V

ERIF

Y W

ATE

R

PR

ES

SU

RE

“PX

XX

”

DIS

PLA

Y P

RE

SS

UR

E>1

5 P

SI

PR

ES

S C

AR

B B

BU

TTO

N T

O V

ERIF

Y C

O2

PR

ES

SU

RE

“P

XX

X” P

SI

DIS

PLA

Y P

RE

SS

UR

E>2

0PS

I

VE

RIF

Y W

ATE

R

LEV

EL

AB

OV

E P

RO

BE

TIP

S

ADD

WA

TER

TO

W

ATE

R B

ATH

A

BO

VE

LEV

EL

OF

PR

OB

E T

IPS

GO

INTO

PR

OG

RA

M

MO

DE

1

CO

ND

UC

TIV

ITY“

C00

0”E3

ER

RO

R

GO

ES

OFF

PR

ES

S C

IRC

A B

UTT

ON

TO

VE

RIF

Y C

ON

DU

CTI

VIT

Y“C

L_X”


VE

RIF

Y IN

CO

MIN

G

WA

TER

SU

PPLY

P

RE

SS

UR

E T

O U

NIT

>15

PS

I OR

NO

T W

ITH

AN

OTH

ER G

AUG

E IN

TH

E S

UP

PLY

SYS

TEM

E

RE

PLA

CE

ER

C

CIR

CU

IT

BOAR

D02

0001

985

YES

NO

YES

NO

YES

YES

NO

YES

NO

YES

RE

PLA

CE

ER

C

CIR

CU

IT B

OAR

D

0200

0198

5

RE

PLA

CE

ER

C

CIR

CU

IT B

OAR

D

0200

0198

5

SU

PP

LY

PR

ES

SU

RE

>15P

SI

SU

PP

LY

PR

ES

SU

RE

>20P

SI

RE

PLA

CE

WA

TER

PR

ES

S

TRAN

SDU

CER

0200

0199

2

TRO

UB

LES

HO

OT

WA

TER

SU

PPLY

S

YSTE

M,

TO F

IX

LOW

WA

TER

P

RE

SS

UR

EC

ON

DIT

ION

RE

PLA

CE

CO

2 P

RE

SS

TRAN

SDU

CER

0200

0199

2

TRO

UB

LES

HO

OT

CO

2 S

UP

PLY

S

YSTE

M, T

O F

IX

LOW

PR

ES

SU

RE

CO

ND

ITIO

N

DIS

PLA

Y C

ON

DU

CTI

VITY

= “C

L_1”

= “C

L_0"

RE

MO

VE

LE

VE

L P

RO

BE

CO

NN

FR

OM

ER

C,

SHO

RT

ERC

LE

VE

L P

RO

BE

PIN

S

VE

RIF

Y C

O2

SU

PPLY

P

RE

SS

UR

E T

O U

NIT

, >2

0PS

I OR

NO

T, W

ITH

AN

OTH

ER G

AUG

E IN

TH

E S

UP

PLY

SYS

TEM

PU

LL C

ARB

A O

R

B C

ON

NEC

TOR

O

FF E

RC

, ER

RO

R

GO

ES

AW

AY

(CAN

U

SE

TE

MP

)

E3 E

RR

OR

GO

ES

AWA

Y

RE

PLA

CE

LE

VEL

PR

OB

E 0

2000

2143



E2E3

E4E5

E6E7

E8E9

NO

RM

ALLY

CAU

SED

BY

WA

TER

B

ATH

TE

MP

ER

ATU

RE

> 4

5°F

NO

RM

ALLY

CAU

SED

BY

WA

TER

P

RE

SS

UR

E >

75 P

SI,

NO

RM

ALLY

CAU

SED

BY

LIQ

UID

S

IDE

TE

MP

ER

ATU

RE

>200

°F

NO

YES

GO

INTO

PR

OG

RA

MM

ING

MO

DE

1, “F

000”

PR

ES

S C

AR

B A

BU

TTO

N

TO S

HO

W W

ATE

R B

ATH

TE

MP

“FX

XX

” °F

GO

INTO

PR

OG

RA

MM

ING

MO

DE

1, “P

000”

PR

ESS

CA

RB

A B

UTT

ON

TO

SH

OW

INC

OM

ING

WA

TER

P

RE

SS

UR

E “P

XX

X”

PS

I

GO

INTO

PR

OG

RA

MM

ING

MO

DE

1, “F

000”

PR

ES

S C

IRC

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ChecklistIf a problem arises during operation of your post mix soda refrigeration unit, follow the checklist below. Routine adjustments and maintenance procedures are not covered by the warranty.

! WarningOnly trained and certified electrical and plumbingtechnicians must service this unit. All wiring andplumbing must conform to national and localcodes.

Problem Possible Cause To Correct

Water only dispensing:No pressure

Regulator(s) out of adjustment

Check/adjust regulator(s).

Out of CO2 Install fresh tank.

Defective regulator(s) Check/repair/replace regulator(s).

CO2 line pinched, kinked, or obstructed

Check/repair/replace CO2 line.

Syrup and CO2 only dispensing:Carbonator

No power Check power supply. Plug in carbonator or reset breaker.

Water supply Make sure water is turned ON.

Replace water filter.

Check/clean/replace pump strainer.

Check/clean/repair water check valve.

Check for frozen water line. Internal Carbonator unit only.

Defective carbonator Check/repair/replace carbonator pump, motor, electrode or liquid

level control.

Syrup and plain water only

dispensing: No pressure

Out of CO2 Install fresh tank.

HP regulator out of adjustment

Adjust HP regulator to the proper setting.

Defective HP regulator

Check/repair/replace HP regulator.

CO2 line pinched, kinked, or obstructed

Check/repair/replace CO2 line.

One valve will not dispense anything:Is there power to

the valve?

Broken wire or loose connection

Replace/repair wire or connector.

Bad microswitch Replace microswitch.


Beverage dispensed is too

sweet:Is the ratio (brix) of the drink correct?

Flow control out of adjustment

Adjust the flow control.

Insufficient soda flow due to low carbonator

pressure

Adjust CO2 pressure or change the tank.

Low CO2 pressure due to leaks

Repair CO2 leaks.

Obstruction in the water or soda line

Clean out the lines.

Beverage is not sweet enough:

Is the ratio (brix) of the drink correct?

Flow control out of adjustment

Adjust the flow control.

Soda flow too high Reset CO2 pressure or replace regulator if necessary.

Obstruction in syrup line

Clean out the syrup line.

Drinks are foaming:Are system

pressures correct?

Over carbonation Check CO2 supply. Reset pressure or replace regulator is

necessary.

Dirty lines/valves Clean/sanitize entire system.

Problem Possible Cause To Correct


Problem Cross-reference Guide

X - Specific problem listed in section R - Problem refer to from section with “X”

CO

2

Ca

rbon

ate

d

Cir

cula

ting

Co

mp

ress

Air

Dis

pe

nse

r

Ele

ctri

cal

Re

frig

erat

ion

Syr

up

Wat

er

Bo

ost

er

Wat

er

Filt

er

No carbonated water X X X X

Carbon particles in drink X X X

Flat drinks X X R R X

No or insufficient non-carbonated water

X X X

Warm drinks X R

No or insufficient syrup X X R X

Peculiar taste carbonated water X R

Peculiar taste non-carbonated water

R X R

Peculiar taste syrup X X R

Carb and booster pump noisy R R X

Air compressor operates excessively

X R

Loss of CO2 gas X R

Drinks too sweet R X

Too much syrup X R

Too much carbonated water X

Too much non-carbonated water X R

Foaming X R

Booster pump/motor won’t cycle OFF

X

Booster pump/motor won’t cycle ON

X

Excessive Carbonation X

Low pressure CO2 alarm won’t cycle ON

X

Low pressure CO2 alarm won’t cycle OFF

X

Water found in primary regulator X

Booster pump/motor won’t cycle OFF

X

Booster pump/motor won’t cycle ON

X

Product dripping from nozzle X

Valves will not activate X

Valves will not shut OFF X

Unit totally inoperative X


CO2 Gas SystemOn units not equipped with Air Pump, check all Probable Causes listed below.

Qualifier Probable Cause Corrective Action

Loss of CO2

If leak occurs while Change-over valve is positioned on Air, follow the “Probable Causes” (for units equipped with Air

Pump).

CO2 Tank leaking.

Use a soap solution around CO2 Tank valve Stem to locate leaks. If leaks are present, bubbles will appear. If valve

Stem leaks at Tank, replace CO2 Tank.

CO2 Washer damaged or

missing.

Use a soap solution around Primary Regulator Coupling Nut and CO2 Tank

Stem. If bubbles appear, remove Regulator and replace CO2 Washer

found inside Nut. Secure Regulator to Tank and check for leaks.

Primary Regulator

Diaphragm leaking.

Use a soap solution around Primary Regulator Adjustment Screw in

Bonnet. If bubbles appear, diaphragm is leading. Replace Primary Regulator.

Ruptured Line Assembly or

leaks at connections.

Use a soap solution around all connections. If bubbles appear,

tighten loose connections carefully.

A to B Change-over Valve leaking.

Use a soap solution around A and B CO2 Tank Change-over Valve, tighten if bubbles appear at Connections to

stop leaks.

CO2 Low Pressure Switch

leaking.

Use a soap solution around Low Pressure CO2 Switch. If bubbles

appear at pipe, tighten Connection. If bubbles appear at Terminal end of

Switch - replace Switch.

CO2 Check valve leaking.

Use a soap solution around Check valve. If bubbles appear, tighten

Connection to stop leaks.

Back Flow Preventer stuck

open.

Use a soap solution around Back Flow Preventer. Tighten if bubbles appear at connection. If bubbles appear at

Vent Hole on underside of Back Flow Preventer, clean out or replace Back

Flow Preventer valve and corresponding Water Check valve.

Carbonator Tank Relief

valve leaking.

Use a soap solution around Relief valve. If bubbles appear, replace

Relief valve.

If leak occurs only while Change-over valve is positioned

on CO2, refer to Troubleshooting “Syrup System”.

Gas leak at the syrup system.

Refer to Troubleshooting “Syrup System” under No syrup or

insufficient syrup in finished drink.


Flat drinks (lack of carbonation in carbonated water)

Primary Regulator (less than 500 psi

[34.5 bar]).

CO2 Supply exhausted (CO2

Tank is functionally

empty if pressure reads less than 500 psi [34.5 bar]).

Verify CO2 Tank pressure is a minimum of 500 psi (34.5 bar) on the Primary Pressure Regulator Gauge marked 0-2000 psi. Replace tank if

necessary.

Primary Regulator out of adjustment or inoperative.

Verify CO2 Primary Regulators are set at 90 psi (6.3 kg/cm2). Adjust if

necessary. If Regulator will not stay in adjustment, replace Regulator.

CO2 Supply adequate (greater

than 500 psi [34.5 bar]).

A and B CO2 Tank

Change-over Valve incorrectly

positioned.

If A and B CO2 Tank Change-over Valve is positioned on an empty Tank or halfway between A and B operating

positions, CO2 is not supplied to Carbonators. Ensure valve handler is

in the “operating” position.

Malfunction of the

Refrigeration System.

Refer to Troubleshooting “Refrigeration System” under Warm

drinks.

Water Filter restricted.

Refer to Troubleshooting “Water Filter System” under Peculiar taste.

Malfunction of the Carbonated Water System.

Refer to Troubleshooting “Carbonated Water System” under Flat drinks.

Excessive carbonation (foaming).

Primary Regulators set

too high.


necessary. If Regulator will not stay in adjustment, replace regulator.

Replace.

Low Pressure CO2 Warning light or buzzer does not

come ON.

Warning lamp or buzzer burned

out. Transformer inoperative.

When CO2 Tank is empty and CO2 warning lamp(s) or buzzer fail, verify

voltage across Transformer. If no voltage, replace Transformer.

Pressure Switch defective.

If CO2 Warning lamps or buzzer and transformer are operative. Pressure

Switch is defective and must be replaced.



Flat drinks (lack of carbonation in carbonated water) (continued)

Low Pressure CO2 Warning light or

buzzer does not go OFF.

Leaks on system.

If leaks exist on CO2 System, not enough pressure is maintained to

allow Pressure Switch to cut OFF CO2 Warning light or buzzer. Use a soap solution to located possible leaks.

Tighten connections carefully.

Primary Regulator out of

adjustment.

Check CO2 supply. The Primary Regulators must be set at 90 psi

(6.3 kg/cm2). Adjust if necessary. If regulator will not stay in adjustment,

replace regulator.

Pressure Switch inoperative.

Carefully disconnect one wire from the CO2 Pressure Switch, if CO2 Warning

Lamps go out, the CO2 Pressure Switch is defective and should be replaced. Carefully disconnect one

wire from the CO2 Pressure Switch, if CO2 Warning Lamps go out, the CO2

Pressure Switch is defective and should be replaced.

Water found in CO2 Regulator and

lines.

CO2 Check Valve defective.

Turn CO2 OFF at CO2 Tank valve. Remove top Cover from Remote

Refrigeration Unit. Locate CO2 Check valve on top of Carbonator Tank. Remove CO2 line on Inlet side of Check Valve. If CO2 is present,

escaping from Carbonator Tank, clean out or replace Check valve.



Carbonated Water System


Flat drinks

Malfunctioning of Refrigeration

System.

Beverages at dispensing

tower are above 40°F (5°C).


drinks.

Malfunctioning of Circulating System.

Refer to Troubleshooting “Circulating System” under Warm drinks.

Beverages at dispensing tower are below 40°F

(5°C).

CO2 supply exhausted.

Verify CO2 Tank pressure is a minimum of 500 psi (35 kg/cm2) on Primary Pressure Regulator Gauge

marked 0-2000 psi. Switch to full tank if necessary.

Ensure CO2 Shut-off Valves to Carbonators are both in the ON

position. Refer to Troubleshooting “CO2 Gas System” under Flat drinks.

Primary CO2 Regulator out of adjustment or inoperative.


necessary if Regulator will not stay in adjustment replace Regulator.

Water Regulator incorrectly adjusted or inoperative.

Verify Filtered Water Pressure Gauge registers 55 psi (3.9 kg/cm2), if higher than 55 psi, flooding of Carbonator will occur. To adjust, loosen Locknut, turn

Adjustment Screw clockwise to increase, counterclockwise to

decrease. If regulator will not respond to adjustments, replace regulator.

Improper water treatment.

Verify By-pass handle is in the “filter operating” position. Ensure Filter

Cartridge is still effective, if necessary replace Cartridge. Refer to

Troubleshooting “Water Filter System”

Carbonator Pump worn

(Brass pump).

Dispense Carbonated Water while listening for carbonator pump and motor to cycle ON at Refrigeration

Unit. Pumps should operated between 6 to 12 seconds before cycling OFF. If operating time exceeds 30 seconds carbonator pump is worn, replace

Pump.

Pressure Relief Valve is leaking.

Remove top cover from Remote Refrigeration Unit. Dispense

Carbonated Water until carbonator Pumps and Motor cycle ON. Observe Pressure Relief Valves on carbonator Tank. If water is observed escaping from either, replace leaking Relief

valve.

Note: Do not confuse the Water Bath Make-up valve for the carbonator Tank

Relief valves.


Beverages at Dispensing Tower

are below 40°F (5°C). (continued)

Back Flow Preventer.

Remove top cover from Remote Refrigeration Unit. Use a soap

solution around Back Flow Preventer. If bubbles appear at Vent Hole or

underside of Back Flow Preventer, clean or replace Back Flow Preventer and corresponding Water Check valve

carbonator Tank.

Double Check valve (water) stuck open.

With top cover from Remote Refrigeration Unit removed and

carbonator Pump Switch and Water turned OFF, loosen water supply line at inlet side of Double Check valve Assembly. If CO2 gas escapes from Check valve, it must be cleaned or

replaced.



No carbonated water at any of the dispensing valves

No CO2 gas or water present at

dispensing valves.

Malfunction of Refrigeration

System.

Refer to Troubleshooting “Refrigeration System” under No carbonated water at any of the dispensing valves (freeze up).

Malfunction of Circulating System.

Refer to Troubleshooting “Circulating System” under No carbonated water

at any of the dispensing valves.

CO2 gas is present at dispensing

valves but no water.

No power to carbonator.

Verify toggle switch for Carbonator is in the ON position and Main Power

Supply is ON.

Water supply restricted to carbonator

pump.

Verify water to unit by observing Filtered Water Pressure Gauge. It

should register 55 psi (3.9 kg/cm2). To adjust, loosen Locknut, turn

Adjustment Screw clockwise to increase, counterclockwise to

decrease. If regulator will not respond to adjustments, replace regulator.

Examine Water Shut-off Valve(s) to Carbonator and ensure they are in the

ON position.


Place Filter By-pass Valve into the Filter By-pass position. Replace Cartridge Filter. Reposition valve

handle to “operating” position.

Water Inlet strainer clogged.

Remove Filter Screen from Inlet Strainer in carbonator Pump (Brass),

flush with water to clean and reassemble.

Liquid Level Control

defective.

Push Toggle Switch for carbonator and circulator to the OFF position. Shut OFF Main Power Supply unit.

Remove electrical Access Panel from unit. Locate liquid level control. Using a pair of insulated needle nose pliers, carefully remove the white wire from

the terminal marked “H” and the black wire from the terminal marked “L” on

the Liquid Level Control Board. Position safely to side. Turn ON Main

Power Supply. Push carbonator Switch to the ON position. If

carbonator pump and motor do not cycle ON immediately, that Liquid

Level Control is defective. Replace.

Electrode Assembly defective.

If Liquid Level Control is operating, test the Electrode Assembly, refer to

Probable Cause “Liquid Level Control Defective”. Verify wire leads are dry

and that they are not touching. If not, replace Electrode.



No carbonated water at any of the dispensing valves (continued)

CO2 gas is present at Dispensing Valves but no

water. (continued)

Carbonator Pump worn

(Brass pump).

Dispense Carbonated Water while listening for carbonator pump and motor to cycle ON at Refrigeration

Unit. Pumps should operate between 6 to 12 seconds before cycling OFF. If operating time exceeds 30 seconds, carbonator Pumps is worn, replace

Pump.

Motor defective. If Motor will not operate, verify voltage across Motor Terminals with voltmeter. If voltage reads 110 to 120 VAC, the Motor or Pump is defective. Loosen the Coupling Clamp with a flat-blade

screwdriver and disengage Pump from Motor. If Motor still will not

operate with Pump disengaged, Motor is defective. Replace.

Carbonator Pump frozen.

Loosen the Coupling Clamp with a flat-blade screwdriver and disengage Pump from Motor. By hand, turn the

Coupling Key in back of Pump. If pump shaft will not spin freely, Pump is defective and must be replaced.



Carbonator pump and motor will not cycle OFF (possibly noisy pump)

Little or no carbonated water at

dispensing valve.

Primary CO2 Regulator

adjusted at extremely high

pressure.


necessary. If regulator will not star in adjustment, replace regulator.

Water supply to Carbonator

Pump shut-off or restricted.

Verify water to unit by observing Filtered Water Pressure Gauge. It

should register 55 psi (3.9 kg/cm2). Examine Water Shut-off Valves to

carbonator and ensure they are in the ON position. Examine Pump Strainer

for restriction. Clean if necessary.


Place Filter By-pass valve into the “Filter By-pass” position. If carbonator

pump and motor immediately cycle OFF, Filter Cartridge is restricted.

Replace Cartridge.

Back Flow Preventer or

Double Check Valve.

Examine Filter Water Pressure Gauge. If it registers 90 psi (6.3

kg/cm2) CO2 gas is passing from the carbonator tank and through the Back

Flow Preventer or Double Check Valve, preventing water from entering

pump. Clean or replace Back Flow Preventer/Double Check Valve.

Carbonator Pump worn.

Remove top cover from Remote Refrigeration Unit. Locate Toggle

Relief Valve on Carbonator Tank and lift lever to allow CO2 gas to escape from Tank for 30 seconds. If during this time Carbonator Pump cycles OFF, pump is worn and should be

replaced.

Coupling Key defective.

Loosen the Coupling Clamp with a flat-blade screwdriver and disengage Pump from Motor. Examine Coupling

Key in Pump. If defective, replace.



Carbonator pump and motor will not cycle OFF (possibly noisy pump) (continued)

Carbonated water at dispensing valve.

Liquid Level Control

defective.

Shut OFF main power supply to unit and push Toggle Switch for

Carbonator and Circulator to the OFF position. Remove Electrical Access Panel from Refrigeration Unit and locate Liquid Level Control. Strip a

1-1/2" (3.8 cm) piece of solid strand wire of insulation to use as a jumper. Turn main power supply unit ON to unit. With a pair of insulated pliers,

jump across Terminals marked “G, H and L” on Liquid Level Control. Simultaneously, while pushing

corresponding Toggle Switch to “carbonator” to the ON position. If

carbonator pump and motor continue to operate after Liquid Level Control Jumper Wire is in place, Liquid Level

Control is defective, replace.

Electrode defective.

Examine wire leads to ensure no breaks in connections. Remove and clean Electrode with find sand paper

and reinstall.

Note: Reversing Electrode Wire Leads on either electrode or Liquid

Level Control will cause erratic operation of carbonator Motor. Refer

to Wiring Diagram.

Peculiar taste in carbonated water

only.

Water filter contaminated.


Back Flow Preventer Valve

leaking or Double Check Valve leaking.

Push Toggle Switch for carbonator to the OFF position. Turn Water Shut-off

Valve to carbonator to the OFF position. Remove tope cover from

Remote Refrigeration Unit. Carefully disconnect water line on the outlet

side of the carbonator pump. If water or CO2 is observed continually escaping from line, Back Flow

Preventer/Double Check Valve is leaking. Disassemble, clean, and

replace if necessary.

Caution: Carbonated water must never be allowed to flow through

materials other than plastic or stainless steel. (Copper, zinc or

galvanized material is non-acceptable.)

Carbonated water flowing

through materials other than plastic or

stainless.

Trace carbonated water flow through system. Ensure no foreign materials are present. Replace non-acceptable

material if found.



Carbonator pump and motor will not cycle OFF (possibly noisy pump) (continued)

Carbon particles in furnished drink.

Malfunction of Water Filter.

Refer to Troubleshooting “Water Filter System” under Carbon particles in

finished drinks.

Defective Carbonator

Pump.

Remove top cover from Refrigeration Unit. Loosen Coupling Clamp with a flat-blade screwdriver and disengage pump from motor. Turn the Coupling

Key by hand, in back of pump. If pump shaft does not turn freely and/or Carbon is found in pump, carbon

veins are defective. Replace pump.

Carbonator Motor cycles ON and OFF

in short cycles.

Defective Circulating

Pump.

Refer to Troubleshooting “Circulating System” under Carbon particles in

finished drinks.

Electrode Assembly

incorrectly wired or defective.

Examine wiring diagram found on Refrigeration Unit. Verify Electrode

wiring leads are on proper terminals of both Electrode and Liquid Level

Control. If problem still occurs, replace electrode.



Circulating System


Warm drinks

Drinks warm throughout the day, warm all the time.


System.


drinks (carbonated water temperature over 40°F [5°C]).

Drinks warm during periods of low demand, much colder during

periods of high demand.

No power to Circulating

Motor.

Verify Switch to Circulating Motor is in the ON position and Main Power

Supply is ON.

Carbon Particles in finished drink.

Motor defective. Using a flat-blade screwdriver, loosen the Coupling Clamp and disengage Pump from Motor. If Motor will not

operate, verify voltage across Motor Terminal with voltmeter. If voltage

reads from 110 to 120 VAC, the Motor is defective and should be replaced.

Circulating Pump defective (stainless steel).

Dispense approximately 1 gallon of carbonated water at dispensing

valves. If temperature of carbonated water drops, Circulating pump is not operating. Examine Coupling Key found between Pump and Motor

Shaft. If coupling key is defective, replace. If key is operational,

Circulating pump is defective, replace.

No CO2 gas or water present at dispensing valve.

Malfunction of Water Filter.

Refer to Troubleshooting “Water Filter System” under Carbon particles in

finished drinks.

Malfunction of Carbonated

Water System.

Refer to Troubleshooting “Carbonated Water System” under Carbon particles in finished drinks.

Circulating Pump defective

(Stainless Steel).

Remove top cover from Refrigeration Unit. Loosen Coupling Clamp with a flat-blade screwdriver and disengage Pump from Motor. Turn Pump shaft with screwdriver. If Pump does not turn freely and/or carbon is found in

Pump, carbon veins in pump are defective. Replace Circulating Pump.

CO2 gas is present at dispensing valves but no

carbonated water.


System.

Refer to Troubleshooting “Refrigeration System” under No

carbonated water at dispensing valve (freeze up).

Particles obstructing flow

through Circulating

Circuit (In-line Strainer).

Remove top cover from Remote Refrigeration. Push toggle switch to carbonator and circulator to the OFF position. Lift lever on Toggle Relief

valve at top of carbonator Tank until pressure is completely released.

Remove In-line Strainer Screen. Flush with clean water and reassemble.

Malfunction of Carbonating

System.

If CO2 gas is present at the Dispensing Valves and there is no

water, the problem is in the Carbonated Water System. Refer to Troubleshooting “Carbonated Water

System”.


Compressed Air SystemUntil repairs can be made on Compressed Air System, place Air/CO2 Change-over Valve in the CO2 Operating position.


No syrup

Air Compressor will not cycle ON and

Air Pressure Gauge registers 0 psi.

No power to Air Compressor.

Verify Toggle Switch to Air Compressor is in the ON position and

main power supply is ON.


Remove Pressure Switch Cover and use a voltmeter across Switch to

determine whether “open” or “closed”. If in “open” position, replace switch.

Motor defective. Verify voltage across Motor with a voltmeter, if Motor/Pump assembly will not operate, it is defective and should

be replaced.

Pump frozen. Same as above for Motor defective.

Air Compressor cycles ON and OFF

and Air Pressure Gauge readings range between

70 psi (4.9 kg/cm2) to 90 psi (6.3

kg/cm2).

Air/CO2 Change-over

Valve placed in incorrect position.

Place Air/CO2 Change-over Valve to the Air or CO2 “operating” position.

Note: If lever is positioned between Air and CO2 the gas supply is shut

OFF to syrup system.

Malfunction of Syrup System.

Refer to Troubleshooting “Syrup System”, under No syrup.


System.

Refer to Troubleshooting “Refrigeration System”, under No carbonated water at dispensing

valves (freeze up).


No syrup (continued)

Air Compressor operates

excessively.

Leak at Shake Machine,

Orange Juice Dispenser or other optional

equipment.

Turn air supply to Shake Machine to OFF position. If Air Compressor cuts out and maintains pressure, leak is at

Shake Machine or Orange Juice Dispenser. Refer to manufacturer’s

manual for Troubleshooting.

Leak at Compressed Air

System.

Use a soap solution around all connections starting from the Air

Motor/Pump assembly to the Low and Medium Pressure Syrup Regulators. If

bubbles appear, tighten loose connections carefully.

Automatic Drain or Petcock

leaking.

Place drain line for bottom of Automatic Drain or Petcock in cup of

water. If air bubbles appear, Automatic Drain or Petcock is leaking. Clean

and/or replace as necessary.

Air leak in syrup system.

Refer to Troubleshooting “Syrup System” under No syrup, air leak at

syrup system.

Restricted Germicidal Filter

on Air Compressor.

Replace Germicidal Filter.

Note: This Filter is not designed to be cleaned, but must be replaced when

exhausted.

Water in Air Accumulator

Tank.

Verify Automatic Drain is operating. If inoperative or defective, replace. If unit is not equipped with Automatic Drain use Petcock to remove water

from tank.

Motor/Pump Assembly

inoperative.

If Motor/Pump assembly operate without building up to 90 psi

(6.3 kg/cm2) as needed to cycle OFF. Pump Assembly is defective and must

be replaced.

Pressure Switch improperly adjusted or defective.

Observe Air Pressure Gauge to ensure proper cycle ON at 70 psi

(4.9 kg/cm2) and cycle off at 90 psi (6.3 kg/cm2) settings. Refer to

instructions found under Switch cover for adjusting. If Switch will not respond

to adjustment, replace switch.

Check valve defective.

While Air Compressor is in the OFF cycle, use a soap solution around

Head Gasket on Motor/Pump Assembly. If bubbles appear, replace

Check valve located on the Air Accumulator Tank.

Peculiar taste in finished product.

Contaminated Germicidal Filter

on Air Compressor.

Replace Germicidal Filter.

Note: This filter is not designed to be cleaned, but must be replaced when

exhausted.

Water in Air Accumulator

Tank.

Drain trapped water from tank by removing Drain Line from top of

Automatic Drain. Disassemble and clean Automatic Drain. If unit is not equipped with automatic drain, use petcock to remove water from tank.

Water Filter contaminated.




Dispensing Valve and Tower


All corresponding valves dispensing

no syrup.

Malfunction of syrup system.

Refer to Troubleshooting “Syrup System” under No syrup or

insufficient syrup in finished drink.

No syrup at only one dispensing

valve.

Syrup Shut-off Valve closed or partially closed.

Remove top cover from Dispensing valve or Tower. Locate Syrup Shut-off Valve on right hand side of Dispensing

valve. Verify shut-off is turned fully open.

Mounting Block restricted.

Remove Dispensing valve from Mounting Block. Place cup over Syrup outlet on Mounting Block and carefully open Syrup Shut-off Valve. If little or

no syrup is present, Mounting Block is restricted. Remove and clean

mounting block. Replace if necessary.

No syrup or insufficient syrup in finished drink

No carbonated water at half or all dispensing valves.

Flow Control our of

adjustment or inoperative.

Readjust Flow Control to proper Brix. If no response, clean Syrup Flow

Control. Replace if necessary.

Valve Port restricted.

Clean Syrup valve Port Assembly.

Seat swollen. Replace Syrup Seat.

Solenoid Coil defective.

Replace Syrup Solenoid Coil.


Water System.

Refer to Troubleshooting “Carbonated Water System” under No carbonated

water at any of the dispensing valves.


No carbonated water or insufficient carbonated water in finished drink

No Carbonated Water only at one dispensing valve.

Carbonated water Shut-off

Valve closed or partially closed.

Remove top cover from Dispensing valve or Tower. Locate Carbonated

Water Shut-off Valve on left hand side of Dispensing valve. Verify Shut-off

Valve is turned fully open.

Mounting Block restricted.

Remove Dispensing valve from Mounting Block. Place cup over

Carbonated Water outlet on Mounting Block and carefully open Carbonated

Water Shut-off Valve. If little or no Carbonated Water is present,

Mounting Block is restricted. Remove and clean mounting block. Replace if

necessary.

Flow Control our of

adjustment or inoperative.

Readjust Flow Control to proper Brix (5 oz in 4 seconds Standard valve,

10 oz in 4 seconds Fast Flow valve). If no response, clean Carbonated Water

Flow Control. Replace if necessary.

Valve Port restricted.

Clean Carbonated Water valve Port Assembly.

Seat swollen. Replace Carbonated Water Seat.

Solenoid Coil defective.

Replace Carbonated Water Solenoid Coil.

Carbonated Water Switch

defective (black).

Replaced Carbonated Water Switch.



No water or insufficient water in finished drinks

All valves dispensing

noncarbonated drinks no water.

Water Shut-off Valve closed or partially closed.

Refer to Troubleshooting “Water Booster System” under Low or No

Water Pressure at Noncarbonated Beverages.

Problem occurs at only one dispensing

valve.

Refer to this section on No carbonated water at only one

dispensing valve in the dispensing valve.

Too much Syrup, Carbonated Water or Water in finished

drink. Problem occurs at only one dispensing valve.

Syrup, carbonated

water, or noncarbonated

water flow control out of adjustment or inoperative.

Readjust appropriate Flow Control. If Flow Control does not respond to adjustment, clean Flow Control.

Replace if necessary. Carbonated Water Flow rates: (5 oz in 4 seconds Standard valve, 10 oz in 4 seconds

Fast Flow valve).

Too much syrup in finished drink. All valves dispensing same flavor-too

much syrup.

Malfunction of syrup system.

Refer to Troubleshooting “Syrup System” under Drinks too sweet.

Too much water in finished drink. All valves dispensing

noncarbonated drink too much

water.

Malfunction of water Booster

system.

Refer to Troubleshooting “Water Booster System” under Qualifier: Pump and motor cycles ON and

OFF excessively.

Syrup or Carbonated Water or Water dripping

from Nozzle.

Valve port scarred.

Disassemble appropriate Syrup or Water Assembly. Examine valve Port

for scars or nicks. Replace if necessary.

Armature Spring or Retaining

Ring broken.

Disassemble appropriate Syrup or Water Assembly. Examine Armature,

Spring and Retainer Ring. If damaged, replace.

Seat scarred or obstructed.

Disassemble appropriate Syrup or Water Assembly. Examine Seat, if

scarred, replace. If foreign material is found in Assembly, remove,

reassemble.

Valves will not activate when

Selection Panel pressed. Problem

occurs at two (2) or three (3)

consecutive Valves on one (1) tower.

Transformer inoperative.

Verify wire leads from Transformer have solid connections. Switch low

voltage lead from Transformer supplying power to left and right hand side of Tower. If Valves operate and

the other three do not, Transformer is defective. Replace.

Dispensing tower’s ON and

OFF Toggle defective.

If after switching Leads, the three valves still do not operate, the ON and

OFF Toggle Switch is defective.



No water or insufficient water in finished drinks (continued)

Problem occurs at all valves on one

(1) dispensing tower.

No power to transformer or

transformer defective.

Verify power with a voltmeter at wall outlet. Verify power across low voltage

leads on transformer. If 24 volts are present ON and OFF Toggle Switch is

defective. Replace.

Problem occurs at only one (1)

dispensing valve.

Dispensing tower’s ON and OFF is Switch

defective.

Verify Main Power Supply and power at Transformer Leads replace ON and

OFF Switch if operative.

Poor connection on valve Wire

Harness.

Trace wiring on defective valve and reconnect any loose wires. Clean and reconnect any corroded connections.

Portion Control Timer

inoperative.

Replace the problem valve Portion Control Timer with a known Operative Timer. If valve then operates, Portion Control Timer was defective. Replace.

Selection Switch

inoperative.

Replace defective Portion Control Timer with operative Timer. If Valves

still will not activate, Selection Panel is defective. Replace Selection Switch.

Poor connection at Contact Clips

on Selection Panel (with

Portion Control Timer).

Examine Contact Clips on Selection Panel and ensure proper contact

between Portion Control Timer and Contact Clips.

Valve will not shut OFF.

Moisture on Portion Control

Timer or Contact Clips.

Remove top cover from Dispensing Tower. Remove all moisture from

Portion Control Timer and Contacts.

Portion Control Timer

Adjustment Screw turned

beyond control limit.

Turn Portion Control Adjustment Screws on defective valve

counterclockwise 10 complete turns. If valve shuts off when selection is

pressed, readjust for proper portions.

Note: Several revolutions may be necessary to bring control back into

range.

Portion Control Timer defective.

Verify above probables are not the problem. Push ON/OFF Switch for

Dispensing Tower to the OFF position. If valve ceases to dispense when pushed to ON position, Portion

Control Timer is defective. Replace.

Selection Panel defective.

Push ON/OF Switch for dispensing tower to the OFF position. If valve

ceases and then continues to dispense when switch is pushed in

ON position, Selection Panel is defective. Replace.



No water or insufficient water in finished drinks (continued)

Foaming of finished products.

Nozzles, Syrup Tube Diffusers

dirty.

Remove and clean Nozzle Assemblies and reassemble.

Warm drinks. Refer to Troubleshooting “Refrigeration System” under Warm

drinks.

Incorrect pressure on

syrup.

Verify pressure supplied to sugar base products is at 60 psi (4.2 kg/cm2).

Adjust Medium Pressure Regulator if necessary. Verify pressure supplied to diet product is at 15 psi (1.1 kg/cm2).

Adjust Low Pressure Regulator if necessary.

Note: Ensure the Low Pressure Supply Line has not mistakenly been

switched for a Medium Pressure Supply Line on the diet tank.

Change-over Valve Medium

or Low Pressure is in the wrong

position.

Verify valve Medium to Low Pressure is in the Low Pressure position for diet

products.

Air or CO2 gas in syrup line.

Replace empty Syrup Tank. Dispense Syrup from valve until consistent flow is achieved and product stabilizes. If evidence of air is still entering line, replace Liquid Disconnect which is allowing air to be drawn into syrup

supply.

Flake ice. Only cube ice should be used for carbonated beverages.

Improper adjustment of

valve.

Ensure carbonated water flow is properly set (5 oz. in 4 seconds

standard valve, 10 oz in 4 seconds Fast Flow valve). Ensure Brix is

properly set. Adjust as necessary.

Unit totally inoperative; all

electrical switches in the ON position.

Power failure, all power to

system is OFF, or Fuse/Circuit

Breaker is “open”.

Check Circuit Breaker. Reset. Examine Time Delay, replace if

necessary.



Electrical System


Fuse/Circuit Breaker is

open.

Short Circuit or overload within

unit.

Push Toggle Switches labeled carbonator and circulator to the OFF position. Push the

Toggle Switches for Booster Pump, Air Compressor, Agitator and Refrigeration to

the OFF position. Replace fuse(s) and reset circuit breaker. Push the Toggle

Switches ON in the following sequence as labeled below, to locate short or overload within unit, waiting momentarily between

steps. *Agitator *Refrigeration *Carbonator A and/or B *Circulator A and/or B (after carbonator Motor Cycles OFF) *Booster

Pump *Air Compressor.

Push the Agitator Toggle Switch in the ON position. If the fuse/circuit breaker opens, the trouble is in the Agitator Motor Circuit. This Circuit must be checked for shorts

and/or overload. If the fuse/circuit breaker does not open after running about 1

minute, the problem is not in the Agitator Motor Circuit.

Push the Refrigeration Toggle Switch in the ON position. If the fuses/circuit breaker opens, the trouble is in the Refrigeration

Circuit. Refer to wiring diagram for possible faulty components. Push the carbonator

Toggle Switch A to the ON position. Draw Carbonated Water from the Dispensing

valve until Pump cycles. If the fuse/circuit breaker opens, the trouble is in the

carbonator Circuit. Refer to wiring diagram for possible faulty components.

Push the carbonator Toggle Switch B to the ON position. Follow procedure above for carbonator A. Push the Circulator Toggle Switch A to the ON position. If fuse/circuit

breaker opens, the trouble is in the Circulator Circuit. Refer to wiring diagram for possible faulty components. Push the

Circulator Toggle Switch B to the ON position. Follow procedure above for

Circulator A.

Push the Booster Pump Toggle Switch to the ON position (allow unit to cycle). If

fuse/circuit breaker opens, the trouble is in the Booster Pump Circuit. Refer to wiring diagram for possible faulty components.

Push the Air Compressor Toggle Switch to the ON position. (Allow unit to cycle). If

fuse/circuit breaker opens, the trouble is in the Air Compressor Circuit. Refer to wiring diagram for possible faulty components.

Important Note: Worn out Circuit Breakers or low voltage are frequently responsible for shorts and overloads. Contact service

agent to examine possible defective Circuit Breakers or low voltage.


Refrigeration SystemUntil repairs can be made on unit with no Ice Bank, push Refrigeration and Agitator Switch to the OFF position and ice down Bath using ice from Ice Maker.


Warm drinks (carbonated water temperature over 40°F [5°C])

Compressor operates but no ice

present at water bath.

Water Bath Feeder Valve

inoperative (not enough water in

bath).

Remove tope cover from Remote Refrigeration Unit. Verify if water level is considerably below Stand Pipe. If

so, Water Make-Up valve is inoperative. Remove, disassemble and clean out valve. Replace, refill Bath and allow carbonator to cycle

while inspecting valve to ensure proper operation. Replace if

necessary.

Water leak inside bath.

Remove top cover from Remote Refrigeration Unit. Inspect Water Bath at Stand Pipe. If considerable water is

observed running over and out the drain, there is a water leak inside

Bath. The leak causes the Ice Bank to melt as fast as it’s formed. Drain Bath

to located the leak, repair and refill bath.

Fan or Motor inoperative (air cooled units).

Examine Fan and Motor on Air Cooled Units at Condenser. If either are found to be inoperative while compressor is

running, replace inoperative fan or motor.

Caution: Inoperative Fan and Motor can cause short cycling of

compressor.

Compressor operates but no ice

present at water bath.

Condenser restricted.

For Air Cooled Units, clean the Condenser removing all dust and lint.

On Water Cooled Units: Using a thermometer verify temperature at water discharge line. If operating

outside of the 95°F (35°C) to 105°F (41°C) range, adjust Water Modulating

valve, replace.

Caution: Restricted Condenser can cause short cycling of compressor.

Excessively warm room.

Verify the Refrigeration Unit is operating in a well ventilated area and that there are no obstructions blocking Condenser. If so, remove obstructions

if inoperative.

Lack of Refrigerant Charge.

Examine Sight Glass. If bubbles appear while compressor is operating

system is low on charge. Refer to Serial Plate for proper refrigeration

charge.

Defective Expansion

valve.

If no bubbles appear in Sight Glass then examine suction line, frost on the

suction line is a sign of defective Expansion valve. Replace if

inoperative.


Warm drinks (carbonated water temperature over 40°F [5°C]) (continued)

Compressor operates with Ice present at water

bath.

Defective Agitator Motor

Assembly.

Remove top cover from Remote Refrigeration Unit. Examine the Agitator Motor Assembly, ensure

propeller is secured to Agitator and that the Agitator Switch is in the ON

position, allowing the water in Bath to be agitated across the cooling coils. If

Motor or Propeller is inoperative, replace.

Malfunctioning of Circulating

System.

If ice is present on Evaporator Coil and Agitator Motor Assembly is

operating the Refrigeration System is functioning. However, the Circulating System may not be functioning. Refer

to Troubleshooting “Circulating System”.

Caution: Always make certain that proper line voltage is present.

Compressor won’t operate and no ice

at water bath.

Defective Switch.

Check to ensure Refrigeration Switch is in the ON position.

Fuse/Circuit Breaker open.

Locate Circuit Breaker box and identify proper breaker for Remote

Refrigeration Unit. Ensure it is in the ON position by switching OFF and then ON again. If breaker will not

reset, refer to Troubleshooting “Electrical System”.

Time Delay Fuse burned

out.

Inspect Time Delay Fuses at the wall quick shut-off panel. One of the fuses may be burned out causing half the

unit to shut down. If this is suspected replace all of the fuses.

Defective High Pressure Control.

Examine High Pressure Control to ensure wire leads are securely

attached to terminals. If trouble is suspected with control, replace.

Defective Ice Bank Control.

Remove Electrical Access Panel and using a voltmeter across the Ice Bank Control, verify control is in the “closed” position. If control is found to be in the “open” position, that Control should be

replaced.

Defective Contactor.

Remove Electrical Access Panel. Use a voltmeter across Contactor Coil. If

current exists across Coil, and Contactor remains “open”, Contactor

is defective. Replace.

Defective Relay or Defective Capacitor or

Defective Overload.

Examine Relay/Capacitor/Overload to ensure wire leads are securely

attached to terminals. Replace any faulty components.

Defective compressor.

If after checking each of the above items, you still experience problems, test compressor for possible defects

or grounding.



No carbonated water at any of the dispensing valves

CO2 gas is present at dispensing valves but no

Carbonated Water.

Malfunctioning of Carbonating

System.

If CO2 gas is present at the Dispensing Valves and there is no

water, the problem is in the Carbonated Water System. Refer to Troubleshooting “Carbonated Water

System”.

No CO2 Gas or water present at dispensing valve.

In a “freeze up” situation, push Refrigeration and Agitator Toggle

Switches to the OFF position. Drain water from Bath. Pour lukewarm

(never hot) water over the Product Coils until thawed. Ice down Water Bath using ice from Ice Maker until

further repairs can be made.

Defective Agitator.

Examine the Agitator Motor Assembly. Ensure Propeller is operating and secured to Agitator and that the

Agitator Toggle Switch is in the ON position. If Motor is inoperative,

replace.

Defective Ice Bank Control.

Remove Electrical Access Panel. Use a voltmeter across the Ice Bank

Control. Verify Control is in the “open” position. If Control is stuck in the

“closed” position, the unit will “freeze up”. Replace Control if necessary. If

unit builds and Ice Bank to the point of extending into stainless steel coils, the

Ice Bank Control must be replaced.

On units equipped with the “Red” Refrigeration

Warning Light.

Defective Contactor.

Use a voltmeter across Contactor Coil. If no current is present across

Coil, but Contactor remains “closed”, Contactor is defective. Replace

defective Contactor.

Defective Primary Ice

Bank Control.

When the Refrigeration Warning Light illuminates, the Primary Ice Bank Control is defective and should be replaced. The Secondary Control operates the Compressor until the

Primary Control is replaced.

Refrigeration Warning Light

cycles ON and OFF with Compressor.

Note: When the Refrigeration Compressor cycles ON, Warning Light will turn OFF. When the Compressor cycles OFF the light will illuminate.



Syrup System


No syrup or insufficient syrup in

finished drink.

Syrup Tank is empty.

Replace Syrup tank and purge air out of Dispensing Valves affected, until steady syrup supply is dispensed.

Kinked Syrup lines.

Examine all exposed Syrup Lines and relieve any sharp bends or kinks.

Note: Observe all independent lines from Syrup Tank to Filters for kinks or

bends. Correct as needed.

Low Pressure Regulator

inoperative.

Low Pressure Regulator controls the pressure to diet beverages. Verify

pressure is set at 15 psi (1.1 kg/cm2). To increase, adjust clockwise, to

decrease, adjust counterclockwise. If regulator does not respond, repair or

replace regulator.

Medium Pressure Regulator

inoperative.

Medium Regulator controls the pressure applied to the sugar based

beverages. Verify pressure is set at 60 psi (4.2 kg/cm2). To increase, adjust

clockwise. To decrease, adjust counterclockwise. If regulator does

not respond, repair or replace regulator.

Check Relief valve restricted.

Disengage Gas Quick Disconnect on suspected restricted flavor at Syrup

Tank. Depress Poppet valve on bottom side of Gas Disconnect. If a

low or poor pressure supply is apparent, replace Check Relief valve.

Gas/Syrup Tank Plug Valves inoperative.

Replace Syrup Tank. If this solves the problem, tag defective tank so bottler

can make necessary repairs. (It is extremely rare to have inoperative

Tank Plug Valves.)

Quick Disconnects

(Gas or Syrup) not fully

engaged on Syrup Tank.

Disengage Quick Disconnects on one Tank at a time. Rinse and clean with warm water. Lubricate the O-ring on

the Syrup Tank Plug with water. Reattach the Quick Disconnects to the

appropriate Syrup Tank Plug. Gas Quick Disconnects are gray or have

two key slots. Syrup Quick Disconnects are black or have three

key slots.

Quick Disconnect

Valves or Tank Jumper

inoperative.

Gas Quick Disconnects: Open the Relief valve on the top of the syrup

tank lid. If the Gas Quick Disconnect is opening properly, pressure should

continue to bleed from the Gas Relief valve. If not, replace Gas Quick

Disconnect. Syrup Quick Disconnects: Open the Dispensing valve (Syrup Side only) for appropriate flavor. Dispensing syrup for at least 10

seconds. If CO2/Air pockets appear in syrup, replace Syrup Quick

Disconnect. If syrup flow is inadequate or fluctuates during 10 seconds of

flow, replace Syrup Quick Disconnects.


No syrup of insufficient Syrup in

finished drink. (continued)

Gas leak at Syrup System.

Use a soap solution around all connections, starting from the Low

and Medium Pressure Regulators to the base of the Syrup Tank Plugs,

observe Quick Disconnects, Tank Cap and Gasket, Tank Plugs and Syrup Tank O-rings for leaks. Repair and

replace if necessary.

Syrup Filter restricted.

Disengage Syrup Quick Disconnect from the appropriate Syrup Tank.

Relieve pressure at the corresponding Dispensing valve. Remove the Screw clamp and the Filter Screen. Wash the

Filter Screen with warm water and reassemble.

Frozen Syrup Coil.

Refer to Troubleshooting “Refrigeration System” under No carbonated water at any of the dispensing valves (Freeze up).

Dispensing valve

inoperative.

Refer to Troubleshooting “Dispensing Valve and Tower” under No syrup or

insufficient syrup.

Drinks too sweet. Low Pressure Regulator

inoperative.

Verify Low Pressure Regulator set at 15 psi (1.1 kg/cm2). Adjust Regulator

if necessary. If Regulator will not respond, repair or replace Regulator.

Medium Pressure Regulator

inoperative.

Verify Medium Pressure Regulator set at 60 psi (4.2 kg/cm2). Adjust

Regulator if necessary. If Regulator will not respond, repair or replace

Regulator.

Dispensing valve

inoperative.

Refer to Troubleshooting “Dispensing Valve and Tower” under Too much

syrup in finished drink.

Peculiar taste. Contaminated Syrup.

Replace tank and sanitize the system.



Water Booster System


Low or no water pressure at noncarbonated beverages

Water Booster will not cycle ON. Both

the pressurized filter water and filtered water

pressure register 55 psi (3.8 bar).

No power to Water Booster

Pump.

Verify Toggle Switch for “Booster Pump” is in the ON position and main

power supply is ON.


Remove Pressure Switch Cover and use a voltmeter across terminals to

determine whether “open” or “closed”. If in the “open” position, replace

Switch.

Motor defective. If Motor will not operate, verify voltage across Motor Terminals with a

voltmeter. If voltage reads from 110 to 120 VAC, the Motor is defective and

should be replaced.

Pump frozen. Loosen the Coupling Clamp with a flat-blade screwdriver and disengage pump from Motor. Turn the Coupling

key by hand, in back of pump. If pump shaft will not spin freely, Pump is defective and must be replaced.

Water Booster cycles ON and OFF

and pressurized Filtered Water

Gauged readings range between

65 psi (4.6 kg/cm2) to 85 psi

(6.0 kg/cm2).

Water supply shut-off after

Booster System.

Examine Shut-off Valve to “Plain Water to Unit” and “Water to Coffee Machine” and ensure both are in the

ON position.

Frozen Water Coil.

Refer to Troubleshooting “Refrigeration System” under No carbonated water at any of the dispensing valves (freeze up).

Pump and Motor will not cycle OFF.

Water supply to Booster Pump

shut OFF.

Examine the Shut-off Valve to Booster Pump and ensure valve is in the ON

position.

Restricted Water Filter.

Observe Filter Water Pressure Gauge. If pressure drops total of 40 psi

(2.8 bar) or more when pump cycles ON. Replace filter.

Leak on Booster System Pump

Strainer obstructed.

Locate water leaks on system and repair. Remove Pump Strainer at

Brass Booster Pump, flush screen with water to clean. Reassemble and position in place. Replace screen if

necessary.

Pump Coupling Key defective.

Using a flat-blade screwdriver, loosen Coupling Clamp and disengage Pump from Motor. Examine Coupling Key, if

rounded off on either end, replace.

Pump defective. Examine Pressurized Filter Water Pressure Gauge. If Pump and Motor

continue to operate but fail to build up to 85 psi (6.0 kg/cm2) in order to cut

off, pump is defective. Replace Pump.


Observe Pressurized Filtered Water Pressure Gauge to ensure proper

cycle ON at 65 psi (4.6 kg/cm2) and cycle OFF at 85 psi (6.0 kg/cm2). Refer to instructions found under

Switch Cover for adjusting. If Switch does not respond to adjustment,

replace switch.


Low or no water pressure at noncarbonated beverages (continued)

Pump and Motor cycles ON and OFF

excessively.

Leak on Booster System.

Locate water leaks on system and repair.

Check valve defective.

Observe Filtered Water Pressure Gauge. If pressure rises and drops

with Pressurized Filtered Water Gauge, the Water Inlet Check valve

on Pump is defective. Replace Check valve.


Observe Pressurized Filtered Water Pressure Gauge to ensure proper

cycle ON at 65 psi (4.6 kg/cm2) and cycle OFF at 85 psi (6.0 kg/cm2). Refer to instructions found under

Switch Cover for adjusting. If Switch will not respond to adjustment, replace

switch.

Accumulator Tank pressure set improperly.

Push Toggle Switch and Water Shut-off Valve to Booster Pump to the

OFF position. Activate Plain Water button until water flow ceases. Using a tire gauge verify a 60 psi (4.2 kg/cm2)

charge on Tank. Recharge if necessary.

Note: When charging Accumulator Tank, only AIR should be used.

Accumulator Tank bladder

ruptured.

Repeat procedures above. If water is found inside Air Chamber when

verifying pressure charge, bladder is ruptured. Replace Accumulator Tank.

Motor overheating.

Using a flat-blade screwdriver, loosen Coupling Clamp and disengage Pump

from Motor. Turn Coupling Key by hand, in back of Pump. If Coupling Key is difficult to turn, it may cause

defective Motor to overheat. Replace Motor if necessary.

Peculiar taste in Non-carbonated

beverages.

Water Filter contaminated.

Replace Filter. Refer to Troubleshooting “Water Filter System”

under Peculiar taste.

Accumulator Tank bladder

ruptured.

Replace Accumulator Tank. Refer to “Pump and Motor Cycle ON and OFF

excessively” Accumulator Tank bladder ruptured.


Water System.

Refer to Troubleshooting “Carbonated Water System” under Peculiar taste, Probable Cause: Back Flow Preventer

leaking.



Water Filter SystemUntil repairs can be made on the Water Filter, place valve handle into “filter By-pass” position.


Carbon particles in finished drink.

Water By-pass valve is not in the “filtering”

position.

Verify By-pass valve handle is in the Filter “operating” position. If particles

continue to appear, filter must be serviced.

Defective or damaged seal

on Filter Cartridge.

Verify O-rings are not twisted or nicked. Verify Cartridge is solid and

free of cracks. Replace if necessary.

Filter Cartridge installed without

Inlet Seal.

Remove Cartridge from Canister. Clean Canister Lid and Shell

assembly. Replace with new Filter Cartridge, making sure to remove

Water Inlet Seal.

Defective carbonator

Pump.

Refer to Troubleshooting “Carbonated Water System”.

Defective Circulating

Pump.

Refer to Troubleshooting “Circulating System”.

Carbonator and Water Booster

Pump extremely noisy.

Restricted Water Filter.

Observe Filter Water Pressure Gauge. If pressure drops at total of 40 psi (2.8 bar) or more when pump cycles ON,

replace filter.

Filter Cartridge installed without removing Water

Inlet Seal.

Removed Cartridge from Canister. Clean Canister Lid and Shell

Assembly. Install new Filter Cartridge, making sure to remove Cartridge Inlet

Seal.

Water supply to Filer restricted.

Verify water supply is turned ON to unit. Refer to Troubleshooting

“Carbonated Water System” and “Water Booster System” for additional

solutions.

Peculiar taste. Water Filter contaminated.

Place Filter valve into “Filter By-pass” position. Replace Filter and reposition

valve handle to “filter operating” position.


When the Brix is OFFAir Compressor

Filtered Water Pressure

CO2 High Pressure

Drink Temperature

70 psi (4.8 bar) ON90 psi (6.2 bar) OFF

Maximum Efficiency55 psi (3.8 bar)

Service Filters

90 psi (6.2 bar)

Below 39°F (3.9°C)


Bag-In-Box Usage

Syrup Tank Usage

Pressurized Filtered Water Pressure (Water Booster)

60 psi (4.1 bar)

Medium Syrup Pressure

60 psi (4.1 bar)

Medium Syrup Pressure

15 psi (1.0 bar)

Low Syrup Pressure

65 psi (4.5 bar) ON85 psi (5.9 bar) OFF


Problem Probable Cause Solution

Drink too warm. Refrigeration switch OFF.

Turn ON refrigeration switch.

Condenser dirty. Have condenser cleaned.

Condenser obstructed.

Remove any objects blocking the air flow in or out of the unit.

Circulator switch OFF.

Turn ON circulator switch and allow time for drinks to cool.

Note: If service is required, you can continue to dispense cold drinks by completing following this procedure.

1. Turn OFF the compressor switch and agitator switch.

2. Drain the water from the water bath. Reinstall the grey plastic over-flow pipe.

3. Fill water bath with ice from the ice machine.

4. Monitor frequently. Refill as needed.

Not enough carbonation.

CO2 Shut-off Valve OFF.

Open Shut-off Valve.

CO2 cylinder empty.

Switch over to a new cylinder and dispense carbonated water until

carbonation returns.

Product foaming. Dirty or sanitizer soaked.

Clean or replace nozzles.

Warm drinks. See “Drink too warm” under Problem above.

No syrup dispensed.

Empty syrup container.

Replace syrup container.

Air Compressor is OFF.

Turn ON and plug-in the Air Compressor.

Change-over valve centered.

Position switch totally on either air or CO2.

No carbonated water dispensed.

Carbonator turned OFF.

Turn ON carbonator switch.

Water supply turned OFF.

Turn ON water to the system.

Product has an off taste.

Dirty nozzles. Clean or replace nozzles.

Out of date syrup.

Replace with fresh syrup.

Saturated water filters.

Replace water filters.


Component Check Procedures

Test Procedures: MPC 64A Timer/Selection PadMPC 64 A Timers can be placed in the test mode as follows:

1. Flip power switch off.

2. While depressing “CAL” button on selection pad, flip power switch back on.

3. Release “CAL” button when red LED comes on.

Faucets will energize for 2 seconds, each in sequence, starting with faucet #1 (far left).

Timer is now in the Test Mode. To stop faucets use one of two procedures:

A. Turn power switch off. This will save the programmed times, Use this procedure for testing or sanitizing.

B. Push “CAL” button. All programmed times for all stations will go to factory default times. Default times are:Size #1 1 - 1.5 seconds Size #2 4 - 4.5 seconds Size #3 6 - 6.5 seconds Size #4 8 - 8.5 seconds

PIN IDENTIFICATIONJ-7 = Valve 1 J-10 = Valve 4

J-8 = Valve 2 J-11 = Valve 5


Check for 24 Volts at each solenoid cable connector, J-7 through J-12, with cables removed.

With cables on, check for 24 VAC across solenoids at dispensing valve while dispensing respective valve.

J-15 Power to Valves 1,2,3.

J-20 Power to Valves 4,5,6 and microprocessor.

Loss of power at J-15 results on loss of power to valves 1,2,3.

Loss of power at J-20 results on loss of power to microprocessor — no valves will work.


J-16 Station & Sizes

Revision May 28, 2003

#1 Stop/Fill

#2 Large

#3 Medium

#4 Small

#5 Valve 6 (or nothing on a 5 Valve tower)

#6 Valve 5

#7 Valve 4

#8 Valve 3

#9 Valve 2

#10 Valve 1

#11 Blank

#12 Extra Large

Use a jumper wire to make these connections to determine if timer is functioning properly.

A. Jump pin 1 to pin 5,6,7,8,9,10. Appropriate Valve should energize as long as pins are jumped.

B. Jump pin 12 to pin 5,6,7,8,9,10. Valves should pour EXTRA LARGE.

C. Jump pin 2 to pin 5,6,7,8,9,10. Valves should pour LARGE.

D. Jump pin 3 to pin 5,6,7,8,9,10. Valve should pour MEDIUM.

E. Jump pin 4 to pin 5,6.7,8,9,10. Valves should pour SMALL.

J-17 CALIBRATION BUTTON & LIGHTIf microprocessor does not go into calibration, remove connector at J-17. With jumper wire, jump 1st and 2nd pins on left 3 times in less than 3 seconds. Replace connector. Calibration light should be on (microprocessor will be in the calibration mode). White & White = calibration button. Red & Black = calibration light. If CAL light does not come on LED is burned out — replace keyboard.


Dual Transformers *DUAL TRANSFORMERS MUST BE WIRED IN PHASE*

To determine whether transformers are wired in phase: With power on, take voltage reading at HOT wire of each transformer. Reading should be 0 VOLTS*. If you read voltage, transformers are out of phase. The positions of the wires on one transformer must be switched. *Black to White = 24V AC +/-10% Black to Black = 0 V AC


New MPC84A Portion Control BoardA new portion control board, the MPC84A, has been developed to improve the performance and maintain the functions and features of the previous MPC64A. In addition this PC board has passed the very demanding EMC testing (radio frequency emissions and interference) for European CE approval, at the UL labs. The MPC64A has been phased out as of 6/96 and only the MPC84A will be used on new production and service.

The new board is the same size, same mounting locations, and uses the same connectors as the previous board. This article is to explain some minor differences and features which can be used to your advantage.

The major difference is with the same size board, the MPC84A can control up to eight stations (dispensing valves), with up to four sizes per station. The MPC64A could only control up to six stations.

The first drawing depicts the connectors on the MPC64A.

The second drawing depicts the connectors on the MPC84A.

The Power connectors J15 and J20 (24VAC) are the same. The Keyboard connectors J16 for touchpad sizes and J17 for calibration touchpad and light, are the same.

The MPC 84A adds one more two pin keyboard connector J1. For an eight station tower, this connector, along with a separate two wire cable to the proper Keyboard, provides the two extra stations.

The five pin valve connectors, J7 to J12 on the MPC64A are changed to two pin connectors, J7 to J14 on the MPC84A. These valve connectors are not polarized (does not matter how you connect the two pins) except when the valve has a WATER or SODA harness.

The calibrating functions of the new portion control board are the same as the old board.


MPC64A Connectors

13

15

112

15

15

J20

J12

LD

6J1

1L

D5

J10

LD

4J9

LD

3J8

LD

2J7

LD

1

J15

OL

D

J16

J17

Mod

el M

PC

84A

P/N

21

3373


MPC84A Connectors

13

1

112

15

15

1

J20

J14

LD

8L

D7

LD

5J9

LD

3J8

LD

2J7

LD

1

J15

NE

W

J16

J17

Mod

el M

PC

84A

P/N

216

162

J13

J12

LD

6J1

1L

D4

J10 J1


FEATURES OF THE NEW MPC84A• Can control up to 8 stations (valves).

• Hardware isolation and zero switching to minimize electrical problems.

• Software improvements to noise.

CALIBRATION INSTRUCTIONS (same as MPC64A)

1. To enter calibrate mode, press calibrate switch three times in less than three seconds, and red calibrate light will illuminate.

2. Place volume cup under nozzle of the valve to be calibrated.

3. Press appropriate size switch and fill volume cup to a point just short of the calibration mark on the volume cup.

4. Let foam settle, jog size switch until liquid reaches the appropriate calibration mark on the volume cup.

5. To calibrate additional sizes, repeat steps 2 thru 4.

Special Features when in the Calibrate Mode

• To obtain an accurate 4.0 seconds pour from any valve, press its associated STOP-FILL switch once.

• To adjust all stations for the same size times, press any station STOP-FILL switch twice in less than two seconds, then repeat steps 2 thru 4 at this station. The resulting times will be copied to all stations when calibrate mode is exited.

6. To exit the calibrate mode, press calibrate switch once and red calibrate light will go out.

ImportantUse this mode, one size adjusts all, only for anemergency (no time to adjust at all) andtemporarily. Each valve flow rate, ratio, and flowregulators would have to be perfectly identical foreach valve to duplicate the same volume in thesame portion time.


NOTE: The new MPC84A does not have factory default set times, like the MPC64A does. If a portion size or station looses its calibration, the time(s) will go back to minimum (.5 seconds). This means you can check the total operation of the MPC84A by initiating the TEST/CYCLING option, without changing the calibration times, which could happen with the old MPC64A.

TEST / CYCLING OPTION1. Turn the power OFF to the tower/portion control.

2. Hold the calibrate switch ON and turn the power ON at the same time.

3. The calibrate LED will illuminate, let OFF the calibrate switch.

4. The dispensing valves will sequence from left to right, valve #1 ON 4 seconds, then valve #2 ON 4 seconds etc., continuously repeating, until you turn the power OFF, or press the calibrate button once. This allows you to see that all valves work. The keyboard or valve harness would have to be at fault, if all the circuit board LEDs (LD1-LD8) illuminate properly, and a valve or valves do not dispense.

Secondly, this sequencing can be used to purge or sanitize the system automatically. If you want more than one valve at a time to dispense automatically for 4.0 seconds, just press station number for number of valves simultaneously. That is, when in the cycling sequence press station #2 (counting left to right) for two valves simultaneous, meaning valve #1 and #2 will dispense for 4 seconds, then #3 and #4, etc., continuously repeating until you turn the power OFF or press the calibrate button once. If you press the station #3, then 1 and 2 and 3 stations will dispense simultaneously, then 4 and 5 and 6, etc. This allows you to have as many valves purging/sanitizing, as the drain will allow without overflowing.

RETROFITTINGWhen using the MPC84A as a service replacement part, only the valve connectors have to be watched. The power connectors and the keyboard connectors


are the same and go in the same places. The older 5 pin valve connectors will fit on the new board, as long as you observe that the 5 pin connector goes on with the two wires aligned to the two pins on the new board. In case of the WATER and SODA switch harness, it must be polarized, so reverse (connector moved 180°) if WATER or SODA does not pour.


MOVs Field TestingMetal Oxide Varistors installed on the water and carbonated water buttons on, McDonalds style dispensing towers, are designed to completely absorb electrical spikes keeping them out of the microprocessor circuit eliminating complaints of:

• Not holding calibration

• Valves flowing by themselves

• Two valves coming on at the same time, etc.

Multiplex has designed a field test procedure that will expose a faulty MOV. This procedure will also work on the older style capacitors.

The field test procedure:

Depress separately both the water and soda water button rapidly 5 - 6 times. While doing this, watch all other valves. If you notice any dripping or any other valve trying to energize, the MOVs need to be replaced.

NOTE: Factory installed MOVs have heat shrink tubes on each terminal leg. Always check to make sure that heat shrink has not slipped down and is insulating the MOV leg inside the terminal connector.

COM NONC

MOV

Insulative Tubing

BLK

GRN/WHT

RED


Test Procedures: MPC84C Timer/Selection BoardMPC 84B timers can be placed in the test mode as follows:

1. Flip power switch OFF.

2. While depressing CAL button on selection pad, flip power switch ON.

3. Release CAL button when red LED comes on.

Faucets will energize for 4 seconds, each in sequence, starting with faucet #1 (far left). Timer is now in the Test Mode. To stop faucets, use one of two procedures.

• Turn power switch off. This will save the programmed times. Use this procedure for testing or sanitizing.

• Push CAL. All programmed times will be saved.

PIN IDENTIFICATIONJ-1 = Valve 1 J-6 = Valve 6



J-4 = Valve 4 J-9 = Soda

J-5 = Valve 5 J-10 = Water

Check for 24 Volts at each solenoid cable connector, J-1 through J-8, with cables removed.

With cables on, check for 24VAC across solenoids at dispensing valve while dispensing respective valve.

J-15 Power to valves 1, 2, 3, 4 and microprocessor

J-20 Power to valves 5, 6, 7, 8 and microprocessor

Loss of power at J-15 results in loss of power to valves 1, 2, 3, and 4.

Loss of power at J-20 results in loss of power to valves 5, 6, 7, and 8.


J-16 Station and Sizes:

#1 Stop/Fill#2 Large#3 Medium#4 Small#5 Valve 6#6 Valve 5#7 Valve 4#8 Valve 3#9 Valve 2#10 Valve 1#11 Blank#12 Extra Large

J-18 Stations

#1 Valve 7#2 Valve 8

J-19 Stations and Sizes:

#1 Blank#2 Valve 2 or 4 Flavor 1 #3 Valve 2 or 4 Flavor 2#4 No wire#5 Kid Size (Smallest)


1. Jump pin 1 on J-16 to pin 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Appropriate valve should energize as long as pins are jumped.

2. Jump pin 12 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Extra Large.

3. Jump pin 2 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Large.

4. Jump pin 3 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Medium.

5. Jump pin 4 on J-16 to 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Small.

6. Jump pin 5 on J-19 to J-16 pins 5, 6, 7, 8, 9, 10, and pins 1 and 2 on J-18. Valves should pour Kid Size.


J-17 CALIBRATION BUTTON AND LIGHTIf microprocessor does not go into calibration, remove connector at J-17. With jumper wire, jump 1st and 2nd pins on left 3 times in less than 3 seconds. Replace connector. Calibration light should be on (microprocessor will be in the calibration mode). White & white = calibration button. Red & black = calibration light. If CAL light does not come on, LED is burned out — replace keyboard.

SECONDARY BOARD PIN IDENTIFICATIONJ-1 = Valve 2 Flavor 1

J-2 = Valve 2 Flavor 2




1. Jump pin 2 or 3 on J-19 and pin 7 or 9 on J-16. Then jump pin 1 on J-16 to pin 7 or 9 on J-16. Appropriate valve should energize as long as pins are jumped.

2. Jump pin 2 or 3 on J-19 and pin 7 or 9 on J-16. Then jump pin 12 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Extra Large.

3. Jump pin 2 or 3 on J-19 and pin 7 or 9 on J-16. Then jump pin 2 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Large.

4. Jump pin 2 or 3 on J-19 to pin 7 or 9 on J-16. Then jump pin 3 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Medium.

5. Jump pin 2 or 3 on J-19 to pin 7 or 9 on J-16. Then jump pin 4 on J-16 to pin 7 or 9 on J-16. Appropriate valve should pour Small.

6. Jump pin 2 or 3 on J-19 to pin 5 on J-19. Then jump pin 5 on J-19 to pin 7 or 9 on J-16. Appropriate valve should pour Kid Size.


Back-flow Preventer MaintenanceThe integral carbonator in this unit is equipped with a back-flow preventer designed to protect the potable water supply from CO2 contamination.

1. Shut OFF power to unit.

2. Shut OFF potable water supply to unit. Do not shut OFF CO2 supply.

3. Remove top cover panel of unit and disconnect inlet fitting from back-flow preventer.

NOTE: The carbonator tank is still pressurized.

4. Observe inlet of backflow preventer #1 check for any discharge. If there is no discharge, #1 check is OK. Proceed to step 5. If there is discharge, proceed to step 6.

5. Disconnect and carefully remove #1 check assembly. Avoid losing any internal parts.

6. Observe inlet of #2 check for any discharge. If there is no discharge, #2 check is OK. Proceed to step 7. If there is discharge, proceed to step 5.

7. Shut OFF CO2 supply and relieve pressure from carbonator tank.

8. Remove back-flow preventer and install new backflow preventer. Turn ON CO2 supply and check for leaks.

9. Check water supply strainer upstream of backflow preventer. Clean out and/or replace as required.

10. Reconnect water lines and turn water supply ON.

11. Turn ON power to unit.

ImportantThe back-flow preventer must be checked atleast once every year to confirm that it isfunctioning properly.


Head Pressure Control ValveMultiplex remote systems require head pressure control valves with special settings. Replace defective head pressure control valves only with “original” Multiplex replacement parts.

OPERATIONThe R404A head pressure control valve is non adjustable.

At ambient temperatures of approximately 70°F (21°C) or above, refrigerant flows through the valve from the condenser to the receiver inlet. At temperatures below this (or at higher temperatures if it is raining), the head pressure control dome’s nitrogen charge closes the condenser port and opens the bypass port from the compressor discharge line.

In this modulating mode, the valve maintains minimum head pressure by building up liquid in the condenser and bypassing discharge gas directly to the receiver.

DIAGNOSING1. Determine if the coil is clean. Air passes through

the condenser from the bottom up. Verify the coil is clean by looking from the bottom up. Do not look down through the fan.

2. Determine the air temperature entering the remote condenser.

3. Determine if the head pressure is high or low in relationship to the outside temperature. (Refer to the proper “Normal Operating Pressures of Refrigeration Units” in the Charts section.)

4. Determine the temperature of the liquid line entering the receiver by feeling it. This line is normally warm; “body temperature.”

5. Using the information gathered, refer to the chart below.

NOTE: A head pressure control valve that will not bypass, will function properly with condenser air temperatures of approximately 70°F (21°C) or above. When the temperature drops below 70°F (21°C), the head pressure control valve fails to bypass and the ice machine malfunctions. Lower ambient conditions can


be simulated by rinsing the condenser with cool water during the freeze cycle.

FAN CYCLE CONTROL VS. HEAD PRESSURE CONTROL VALVEA fan cycle control cannot be used in place of a head pressure control valve. The fan cycle control is not capable of bypassing the condenser coil and keeping the liquid line temperature and pressure up.

This is very apparent when it rains or the outside temperature drops. When it rains or the outside temperature drops, the fan begins to cycle on and off. At first, everything appears normal. But, as it continues raining or getting colder, the fan cycle control can only turn the fan off. All the refrigerant must continue to flow through the condenser coil, being cooled by the rain or low outside temperature.

This causes excessive sub-cooling of the refrigerant. As a result, the liquid line temperature and pressure are not maintained for proper operation.

ConditionProbable

CauseCorrective Measure

Discharge Pressure - HighLiquid Line Temperature - Hot

Valve stuck in bypass

Replace valve

Discharge Pressure - LowLiquid Line Temperature - Cold

Valve not bypassing

Replace valve

Discharge Pressure - LowLiquid Line Temperature - Hot

Ice Machine Low on Charge

Low on Charge

Verification


Charging Multiplex Remote Refrigeration Unit NOTE: System would have been opened for repairs. Once completed, a vacuum of 500 microns would have been maintained for 1/2 hour. The proper procedure for charging the system includes the reintroduction of all refrigerant that had been recovered before making the repair.

1. Attach charging hose of gauge manifold to liquid valve of the recovery cylinder (if no refrigerant was in the system, and thus, no refrigerant was recovered, attach charging hose to Refrigerant cylinder). Open cylinder valve.

2. Place cylinder on charging scale-zero scale.

3. Open high side valve wheel of gauge manifold. DO NOT ATTEMPT TO CHARGE SYSTEM ON LOW SIDE—CHARGE IN A LIQUID STATE ONLY WITH REFRIGERATION SYSTEM OFF.

4. Allow sufficient time for all refrigerant to transfer from cylinder to refrigeration unit. If necessary, put cylinder into bucket of hot water to increase the internal pressure of the cylinder.

5. System total charge is the net result of:

A. Refrigeration Unit charge on nameplate

B. Remote line set length X .72 oz./ft.

C. 90% of condenser volume (cu. ft.) x Refrigerant (wt./cu ft)

NOTE: Refrigerant weight varies with temperature. R-404A weighs 72 lb/cu. ft. @ 32°; 62 lb/cu. ft. @ 95°

6. When all refrigerant has been transferred, close valve wheel of the manifold.

7. Turn refrigeration unit on.


Compressor & Remote Condenser

COMPRESSOR

NO

NO

NO

YES

NO

COMPRESSORWILL NOT GO

OFF

COMPRESSORWILL NOT COME

ON

VERIFY KEYPAD/DISPLAY GOOD, SEE KEYPAD / DISPLAY TROUBLE

SHOOTING PAGE 7

COMPRESSORWILL STILL NOT

GO OFF

COMPRESSORWILL STILL NOT

COME ON

YES

ELSE

VERIFY ICE BANK PROBE TIP #1 IN ICE

PULL CARB A CONN TO RESET

CONDUCTIVE PROBES

PULL ICE BANK CONN ON ERC, COMPRESSOR

SHOULD GO OFF

SHORT ICE BANK CONNECTOR #3ALL

PINS

REPLACE ICE BANK PROBE

REPLACEHPCO

SWITCH

VERIFY HPCO SWITCH

CLOSEDSHORTCONN 12

REPLACE ICE BANK PROBE

020002091

REPLACE ERC CONTROL BD

020001985

VERIFY VOLTAGE AT COMP OUTPUT

TERMINALS ON ERC

REPLACE ERC CONTROL BD 020001985

CHECKCONNECTO

RS AND WIRING TO

CONTACTORCOIL

REPLACECONTACTOR

VERIFY VOLTAGE AT CONTACTOR

COIL

VERIFY PROPER VOLTAGE AT

COMPRESSOR

REPLACECOMPRESSOR

FAN / REMOTE CONDENSER

REFRIGERATIONSYSTEM

OUTPUT TERMINALS ARE COMMON TO

COMPRESSOROUTPUT TERMINALS

ON ERC

CHECK CONNECTORS AND WIRING TO FAN /

REMOTECONDENSERCHECK

MOTORS

IF COMPRESSOR COMES ON AND STILL

NO COOLING, USE REFRIGERATION

TROUBLESHOOTING

CHECK (LIQUID LINE TEMP) AND EVAP OUT

TEMP


Agitator Condenser

AGITATOR

END

YESYES

NO/END

AGITATORWILL NOT GO

OFF WITH KEYPAD

BUTTON / LED

AGITATORWILL NOT

COME ON WITH KEYPAD

BUTTON / LED

VERIFY KEYPAD/DISPLAY GOOD, SEE KEYPAD / DISPLAY TROUBLE

SHOOTING PAGE 7

AGITATORWILL

STILL NOT COME ON

AGITATORWILL

STILL NOT GO OFF

REPLACEERC

CONTROLBOARD020001985

VERIFY VOLTAGE ON ERC

AGITATORTERMINALS

IF NO VOLTAGE REPLACE

ERCCONTROL

BOARD020001985

VERIFY WIRING / CONNECTORS TO

AGITATORMOTOR

REPLACEAGITATOR

MOTOR


Carbonation System A or BCARBONATOR SYSTEM

A OR B

YES / END

NO

CARB MOTOR DOES NOT TURNON

CARB MOTOR DOES NOT TURNOFF

FIRSTVERIFY PRG

MODE 2 IS SET TO “-002”FOR

BOTH CARB PUMPS

VERIFY NO “E1” ERRORGOTO PROGRAM MODE 1 CONDUCTIVITY

“C000”

PRESS CARB A AND/OR CARB B BUTTON, VERIFY CARB A AND/OR B

CONDUCTIVITY PROBES

NO

“CX__” X= A OR B

“CX00” CARB

MOTORSHOULD BE

ON

“CX11” CARB

MOTORSHOULD BE

OFF

YES / END

VOLTAGE AT ERC

AGITOUTPUT

TERMINALS

VOLTAGE AT ERC

AGITOUTPUT

TERMINALS

NO NO/ END

YES YES

REPLACE ERC CONTROL

BOARD020001985

CHECK ALL WIRES AND CONNECTORS

FOR OPEN ON CARB TANK WIRING

HARNESSCHECKCARB MOTOR

REPLACE ERC CONTROL BOARD

020001985


Circulation System A or BCIRCULATING

SYSTEM A OR B

CIRC MOTOR DOES NOT TURNON

CIRC MOTOR DOES NOT TURNON

VERIFY NO “E1” ERROR

VERIFY KEYPAD / DISPLAY WORKS, CIRC LED GOES

ON AND OFF

VERIFY VOLTAGE AT CIRC OUTPUT

TERMINALS ON ERC

CHECK ALL WIRES AND

CONNECTORS TO CIRC MOTOR, CHECK CIRC

MOTOR

REPLACEKEYPAD /

DISPLAY IF BAD 020001986

ORIFWIRES/MOTOR OK, REPLACE ERC BOARD 020001985


ERC Control Board, Keypad & DisplayERC CONTROL BOARD

AND KEYPAD / DISPLAY

KEYPAD / DISPLAY NOT

WORKING

ERC POWER LED NOT ON

KEYPAD BUTTON(S) DO NOT RESPOND,

RESPECTIVE LEDS DO NOT

COME ON

VERIFY PROPER VOLTAGE ON

ERC TERMINALS L1 AND L2

YES

NO

YES

NO

POWER ERC OFF, THEN ON,

VERIFY NO COUNTDOWN

“PdXX”ON DISPLAY

TURN POWER OFF THEN ON

TO RESET ERC

KEYPAD BUTTONS NOW

WORK REPLACE

ERCCONTROL

BOARD

DISPLAY SHOWS POWER UP

COUNTDOWN“PdXX”

REPLACE KEYPAD / DISPLAY 020001986

REPLACE ERC CONTROL BOARD 020001985

IF DISPLAY FLASHES ERRATIC NUMBERS / SYMBOLS, REPLACE

KEYPAD / DISPLAY020001986

GENERAL NOTE: FOR DISPLAY PROBLEMS, IF COUNTDOWN OCCURS ON POWER UP, “PdXX”, THEN DISPLAY IS PROBABLY AT FAULT, NOT

ERC


Programming / Auto Set

COMPRESSOR DOES NOT REACT TO ICE BANK PROBE (SODA &

CHILLER UNITS) OR BEER UNIT DOES NOT REACT TO WATER

TEMP PROBE

GO INTO PROGRAM MODE 3 AND VERIFY COMPRESSOR CONTROL

SETTING CORRECT“-003” FOR SODA & CHILLER UNITS(“-1273”

FOR BEER UNIT ONLY)

NO

YES

DISPLAY READS “-003”

F PROGRAM MODE 3 IS SET RIGHT FOR SODA / CHILLER UNIT

(“-003”), GO TO COMPRESSOR TROUBLESHOOTING, IF

COMPRESSOR STILL NOT COMING ON/OFF WHEN IT

SHOULD

DISPLAY READS “1273” WHICH IS BEER MODE

ONLYRE-PROGRAM MODE 3 TO ICE BANK PROBE “-003” BY PRESSING COMP/AGIT

BUTTON ONCE

YES / ENDREPROGRAMMINGFIXES PROBLEM

NO

TROUBLE SHOOT ICE BANK PROBE WIRING AND

CONNECTORS, LOOK FOR OPEN CONNECTION AND REPAIR / REPLACESEE

COMPRESSORTROUBLESHOOTING IF

CARB A AND/OR CARB B MOTOR STAYS ON CONSTANTLY WHEN

RESPECTIVE BUTTON ACTIVATED INSTEAD OF STOPPING WHEN CARB

TANK IS FULL

YES

YES

NO

NO

GO INTO PROGRAM MODE 2 AND VERIFY CARB PUMP

SETTINGS

PRESS CARB A/B BUTTON, DISPLAY

READS “-002”

EXIT, AND GO INTO PROGRAM MODE 1CONDUCTIVITY

“C001”PRESS CARB A/B BUTTON

DISPLAY READS “CAOO”

TROUBLE SHOOT CARB TANK WIRING HARNESS

AND CONNECTORS, LOOK FOR OPEN

CONNECTION AND REPAIR / REPLACE

REPEAT FOR CARB B SYSTEM SETTINGS IF

NECESSARY

IF “CA11” REPLACE ERC CONTROL 020001985

IF EITHER OR BOTH “0” DIGITS IS A “1”, RE-

PROGRAM TO “0” VIA PROGRAM MODE 2

INSTRUCTIONS

VERIFY CARB A & B SYSTEMS WORK NOW,

SEE CARB SYSTEM TROUBLESHOOTING IF

NECESSARY

ONLY A OR B (OR NONE) CIRCULATING WATER

TEMPERATURE DISPLAYED ON KEYPAD, UNIT HAS TWO CIRC

SYSTEM

YES

IF TWO CIRCULATING SYSTEM UNIT, VERIFY BOTH THERMISTORS ARE GOOD

ERC PROGRAM CHECKS ON EVERY POWER UP, IF GOOD

THERMISTOR(S) (0-200°F) ARE PLUGGED INTO CIRC A AND CIRC B CONNECTORS

ON ERC

IF ONLY ONE, (OR NONE) GOOD THERMISTOR IS

PLUGGED IN, THEN ONLY THAT CONNECTOR (A OR B) CIRC TEMPERATURE WILL

DISPLAY (AUTOSET)

ONLY ONE CIRC SYSTEM TEMPERATURE (OR NONE) IS DISPLAYING ON A TWO CIRC

SYSTEM UNIT

NO

REPLACE BAD THERMISTOR(S) 020001991

(NOT MEASURING 0-200°F) OR GOOD THERMISTOR(S) NOT

PLUGGED IN

VERIFY BOTH GOOD THERMISTORS ARE PLUGGED IN, THEN TURN UNIT POWER OFF, THEN ON, TO

REGISTER NEW THERMISTOR(S)

IF NO TEMP DISPLAY GO TO ERC / DISPLAY TROUBLESHOOTING


ERC Component (Output) Connector Layout

ERC Sensor (Input) Connector Layout

L

L/N

C R AGITATIOR CIRCB

CARB A CARB B CIRC A

EARTH

PLUG THIS PIN

12 11 10 9 8 7 6 5 4 3 2 1

CO2 TS TD TW TB TA WL ICE CA A CA B HPCO WATER

HIGH PROBE HPCO SWITCH LOW PROBE

COMHIGH PROBE

GND+5V DC

LOW PROBE OUTPUT

COM HIGH PROBE GND

+5V DC LOW PROBE OUTPUTSUCTION TEMP LEVEL PROBE

GND

DISCHARGE TEMPCIRC B TEMP

CIRC A TEMP WATER BATH TEMP


Component Specifications

Refrigeration Unit Specifications

Super-Chill units do not apply to the above table, they are only used to chill large amounts of water.

RATINGS

Model Number of Dispensing HeadsType of

Container

2803 One 6-valve soda tower Bag-in-Box

11M One 6-valve soda tower or up to three 2-valve root beer towers

Bag-in-Box

44M & 42M

Up to two 8-valve soda towers Bag-in-Box

50M Up to two 8-valve soda towers Bag-in-Box

ModelEvaporator Rating

at 20°F (-6.5°C)Heat Rejection (Max.)

Model 2803

2,500 BTUH 490 kcal/hr

4,500 BTUH 885 kcal/hr

Model 11M

5,150 BTUH 1,159 kcal/hr


Models 44M & 42M



Model 50M

14,900 BTUH3,310 kcal/hr

20,400 BTUH4,285 kcal/hr


S-250M Specifications

MII-302 Specifications

Countertop Weights

175 lbs./79.5 kgs

Ice Storage Capacity

up to 250 lbs./ 114 kgs of ice.

Electrical Requirements

Dispenses: 120V/60Hz/2.8 FLA

Drain

Two 3/4" (1.96 cm) PVC (N.P.T.) drain fittings. One pre-installed 3/4" (1.96 cm)

PVC fitting extends from drain pan. A second fitting extends from bin.

Machine Compatibility

Manual fill or top-mount with compatible 22" and 30" wide ice machines. Contact

factory for baffle and ice wide ice machines.

ServiceMotor, drain and electrical connections

are front serviceable.

Countertop Weights

402 lbs. / 182 kgs

Ice Storage Capacity

300 lbs. / 136 kgs

Electrical Requirements

Dispenser: 120V/60Hz/3.5 FLA

Drain

Two pre-installed 3/4" (1.9 cm) PVC (N.P.T.) drain fittings extend from drain pan. Ice bin drains

directly into drain pan for front clean out, no hook up necessary.

Machine Compatibility

Manual fill or top-mount with compatible 30" wide ice machine. Certain top-mounted machines may

reduce storage capacity. Contact distributor or Manitowoc Foodservice for baffle and ice maker lid

requirements for top-mounted ice machine applications.

Service Motor, drain and electrical connections are front serviceable.


Charts

Refrigerant Charge

R-12

MODEL P/N R-12 OZS/GRAMS

16 EUTECTIC 200847 10/1304.1

37A 903750 73.6/2086.5

37W 903751 80/2267.9

37R 903753 194/5499.8

37TA 903770 74/2097.8

37TR 903771 172/4876.1

37TW 903772 80/2267.9

38HA 903801 18/510.3

38HW 903803 23/652.1

38HR 903804 98/27782

72AL 904666 49-1389.1

72WR 904667 57/1615.9

72WL 904668 57/1615.9

72LR 904682 151/4280.7

72RR 904683 151/4280.7

37AF 904707 74/2097.8

37RF 904708 172/4876.1

37WF 904709 80/2267.9

50A 905008 46/1304

50RC 905009 134/3798.8

50W 905010 57/1615.9

50HA 905011 36/1020.6

50HW 905012 44/1247.4

50HR 905013 150/4252.4

38A 905210 26/737.1

38R 905211 31/878.8

38W 905223 64/1814.3

51AEUTECTIC 905224 46/1304.1

2803A 902801 8/226.8

2803W 902803 6/170.1

1200A 32/907.2

1200W 36/1020.6


2803W 902805 6/170.1

11AS 903722 12/340.2

37KA 903730 74/2097.8

37KR 903731 172/4876.1

37KW 903732 80/2267.9

38HAC 903806 18/510.3

38HAC 903807 18/510.3

38HAC 903808 18/510.3

39 903939 98/2778.2

39SC 903940 98/2778.2

D4610 904601 67.5/1913.6

37RF-1 904701 172/4876.1

371A 904710 74/2097.8

371R 904711 172/4876.1

371W 904712 80/2267.9

50HA-1 905017/20 36/1020.6

50FW-1 905018/24 44/1247.4

50HR-1 905019/22 150/4252.4

75A 907501 8/226.8

125A 912501 6/170.1

150A 915001 12/340

D4205A 942050/51 16/453.6

2000A 26/737.1

2000W 31/878.8

44KA 904419 25/708.7

44KR 904420 128/3628.7

44KW 904421 22/623.7 R502

44A 904400 25/708.7

44R 904401 128/3628.7

44R 904405 98/2778.2

44W 904406 22/623.7 R502

R-12 (Continued)



R-22


11MA 901106 11/312

11MA2C 901108 11/312

150MA-1 915011 11/312

37KA22 903790 64/1814

37KR22 903791 151/4281

37KW22 903792 70/1984

37MA-P 904725 64/1814

37MR-P 904726 151/4281

37MW-P 904727 70/1984

44KA22 904440 47/1332

44KR22 904441 116/3289

44MR-G 904431 116-3289

44MR-P 904500 47/1332

44MW-G 904432 35/992

50MA 905030 42/1191

50MR 905031 140/3969

50MR 905036 140/3969

50MW 905032 52/1474

75A 907511 7/198

HC180 902809 7/198

HC340 901109 11/312

HC340S 901111 11/312

R2803A 902821 7/198

R2803W 902822 7/198


R-404A

MODEL P/N R-404A OZS/GRAMS

11M042C 901125 13.5/383

11MA04 901120 13.5/383

150A04 905121 13.5/383

2803A04 902830 10.5/298

2803A04B 902838 10.5/298

300MA04 930021 57/1616

3610R404C 936116 240/6804

38MA04 903850 39/1106

38MA04B 903859 39/1106

38MW04B 903855 29.5/836

38MW04 903852 26/737

44KA04 904490 57/1616

44KR04 904491 125/3544

44KW04 904492 57/1616

44MA04 904480 57/1616

44MA04E 904416 57/1616

44MR04 904481 125/3544

44MR04E 904417 125/3544

44MW04 904482 57/1616

44MW04E 904418 57/1616

450MA04 945013 113/3203

50MA04 905040 113/3203

50MR04 905041 145/4111

50MR04 905046 145/4111

50MW04 905042 113/3203

75A04 907521 10.5/298

D3610-04 936113 240/6804

D4810R04 948102 240/6804

HC900-04 903856 29/822

HC900S04 903858 29/822


Operating Pressures

NORMAL OPERATING PRESSURES OF REFRIGERATION UNITS

1. On system with expansion valve (pressure limiting) evaporator gets no higher than:50 psig on R-1253 psig on R-50285 psig on R-22

2. Water system head pressure should be manually set (adjustable water control valve) to maintain 105°F water condenser out temperature.

3. Remote Condenser system head pressure will be controlled by Low Ambient Control75 psig on R-12, R-134A150 psig on R-502, R-22, R-404A

R-1

2 R

-50

2 R

-22

R-1

34A

R

-404

A

Hea

d P

ress

ure

psig

ps

ig

psig

ps

ig

psig

75°

F C

onde

nser

A

mbi

ent

10

-100

% Ic

e on

E

vapo

rato

r

100-

140

200-

260

180-

240

110-

160

210-

280

90°

F C

onde

nser

A

mbi

ent

10

-100

% Ic

e on

E

vapo

rato

r

120-

170

230-

300

210-

280

130-

180

240-

320

R-1

2 R

-50

2 R

-22

R-1

34A

R

-404

A

Eva

pora

tor P

ress

ure

psig

ps

ig

psig

ps

ig

psig

75°F

Eva

pora

tor,

or 8

0°F

Wat

er75

140

130

75

150

10-1

00%

Ice

on

Eva

pora

tor

9-20

30

-50

24

-44

9-20

3

3-55


NORMAL OPERATING PRESSURES OF REFRIGERATION UNITS

1. On system with expansion valve (pressure limiting) evaporator gets no higher than3.4 bars on R-123.7 bars on R-5025.9 bars on R-22

2. Water system head pressure should be manually set (adjustable water control valve) tomaintain 40.5°C water condenser out temperature.

3. Remote Condenser system head pressure will be controlled by Low Ambient Control5.2 bars on R-12, R-134A10.3 bars on R-502, R-22, R-404A

R-1

2 R

-502

R

-22

R-1

34A

R

-40

4A

Hea

d P

ress

ure

bar

bar

bar

bar

bar

24°C

Con

dens

er

Am

bien

t 10

-100

% Ic

e o

n E

vapo

rato

r

6.9-

9.7

13.8

-17.

912

.4-1

6.5

7.6

-11.

014

.5-1

9.3

90°F

Con

dens

er

Am

bien

t 10

-100

% Ic

e o

n E

vapo

rato

r

8.3-

11.7

15.9

-20.

614

.5-1

9.3

8.9-

12.4

16.5

-22.

1

R-1

2 R

-502

R

-22

R-1

34A

R

-40

4A

Eva

pora

tor P

ress

ure

bar

bar

bar

bar

bar

24°C

Eva

pora

tor,

or 2

7°C

Wat

er

9.

79

10.3

10-1

00%

Ice

on

Eva

pora

tor

0.6-

1.4

2.1-

3.4

1.7-

3.0

0.4-

1.2

2.3

-3.8


McDonald’s Models History

*Only 100 units manufactured.

Finished Drink @ 5:1 Brix

Soda Only

Slow Flow 6 oz. / 4 sec. 5 oz. / 4 sec.

Fast Flow 12 oz. / 4 sec. 10 oz. / 4 sec.

Mo

del

Bat

hs

Cir

cula

tin

g

Pu

mp

GP

H

Car

b.

Wat

er

Lin

e S

ize

Flo

w

1969

120

0Tw

inTw

o 50

GP

H3/

8" I

DS

low

1973

(la

te)

120

0Tw

inTw

o 50

GP

H3/

8" I

DS

low

1978

(la

te)

72Tw

inTw

o 10

0 G

PH

1/2"

ID

Slo

w/F

ast

1979

(ea

rly)

36*

Sin

gle

Two

100

GP

H1/

2" I

DS

low

/Fas

t

1981

(la

te)

37S

ingl

eTw

o 10

0 G

PH

1/2"

ID

Slo

w/F

ast

1982

(la

te)

37F

(F

ast F

low

)S

ingl

eTw

o 10

0 G

PH

1/2"

ID

Fas

t

198

7 (m

id)

37T

(To

tal P

SI)

Sin

gle

Two

100

GP

H1/

2" I

DF

ast

1990

(la

te)

37K

(K

it)S

ingl

eTw

o 10

0 G

PH

1/2"

ID

Fas

t

1990

(la

te)

44K

(K

it)S

ingl

eO

ne 1

00 G

PH

1/2"

ID

Fas

t

199

2 (m

id)

37K

-22

(R-2

2)S

ingl

eTw

o 10

0 G

PH

1/2"

ID

Fas

t

199

2 (m

id)

Col

d P

late

N.A

.N

.A.

1/2"

ID

Fas

t

199

2 (m

id)

44K

-22

(R-2

2)S

ingl

e O

ne 1

00 G

PH

1/2"

ID

Fas

t

199

5 (m

id)

44K

-404

(R

-404

A)

Sin

gle

One

100

GP

H1/

2" I

DF

ast

1995

(la

te)

50M

-04

(R40

4A)

Sin

gle

Two

100

GP

H1/

2" I

DF

ast


Sustained Draw Curve Charts

SC180 SUSTAINED DRAW CURVE


Flow Rate (pounds/minute)

Inle

t Te

mp

erat

ure

(°F

)


Inle

t Te

mp

erat

ure

(°F

)





Inle

t Te

mp

erat

ure

(°F

)


Inle

t Te

mp

erat

ure

(°F

)




Diagrams

Wiring Diagrams

MODEL 72/72B AIR COOLED 3 PHASE

Lo

w

Pre

ssu

re

Stit

chC

O2 S

ign

al

Tra

nsf

orm

er

Rig

ht H

an

d U

nit

On

ly

Fa

n

Mo

tor

Fa

n

Mo

tor

Co

mp

ress

or

4 x

2 H

an

di-

bo

xC

om

ou

nt

Ass

embl

y w

ith W

ire

s

24

VA

C

Blu

eW

hite

Re

d Bla

ckB

lue

Bla

ck Bla

ck

Black

Black

Blu

eW

hite

Bla

ck

Bla

ckR

ed

Re

d

Blu

e

Black

Blue

Red

Re

d

Red

Re

d

Wh

ite

Bla

ck

Black

Black

Wh

ite

BlackWhite

Wa

ter

Boo

ste

r P

um

p

Mo

tor Air

C

om

pre

sso

r M

oto

r

12

0V

AC

Me

tal

Co

nd

uit

Bla

ck

Gre

en

Wir

e

Eq

uip

me

nt

Gro

un

d

Gre

en

Fle

x C

on

du

it A

ssem

bly

Fle

x C

on

du

it

Co

nta

cto

r

Wh

iteW

hite

Bla

ckB

lack

Bla

ck

Bla

ckBla

ck

Ag

it.C

arb

.

Re

d Ag

itato

r M

oto

rC

ircu

latio

n

Mo

tor W

hite

Bla

ck

Ice

Ba

nk

Se

nso

r

Re

f.C

irc.

Re

d

RedWhite

Ca

rbo

na

tor

Pu

mp

M

oto

r

Wh

ite Bla

ck

Gre

en

Lo

ad

Co

ntr

ol B

ox

WhiteWhite

White

WhiteWhite

Black WhiteRed

BlackBlue

NeutralC

om

ou

nt A

sse

mb

ly

with

Wir

es

4 x

4 H

an

di-

bo

x

Gre

en

Wir

e

Eq

uip

me

nt

Gro

un

dTo

20

4/1

20

VA

C

3 a

nd

4 W

ire

Su

pp

ly

Ca

rbo

na

tor

Tan

k

WhiteGreen

Black

3 C

on

du

cto

r C

ab

le

Sym

bo

lsW

ire

Nu

t, S

ma

ll Y

ello

wW

ire

Nu

t, L

arg

e B

lack

Wir

e A

ttach

ed

to

Co

mp

on

en

t

Co

nd

en

ser

Sta

nd


MODEL 72/72B AIR COOLED 1 PHASE

Symbols

Wire Nut, Small YellowWire Nut, Large Black

Wire Attached to Component

Ca

rbo

na

tor

Tan

k

Ca

ble

Ja

cke

t A

ssem

bly

Ca

rb.

Pu

mp

Mo

tor

Lo

ad

Liq

uid

Le

vel C

on

tro

l

Red

White

Gre

en W

hite

Bla

ck

RedBlack

Red

Fle

x C

on

du

itT

ran

sfo

rme

r (A

uto

ma

tic)

Bla

ckR

ed

20

8V

AC

In

pu

t2

40

VA

C O

utp

ut

Tra

nsf

orm

er

Re

d

Re

d

Re

d

Re

dB

lack

Bla

ck

Re

d

Bla

ck

Sta

rt

Re

lay

Co

nta

cto

r

White

Red

RedBlack

Black

BlackWhiteRed

Wh

iteB

lack

Black

Black

Wh

ite

White

Wa

ter

Boo

ste

r P

um

p

Mo

tor

Air

C

om

pre

ssor

M

oto

r

12

0V

AC

Me

tal

Co

nd

uit

Bla

ck

Gre

en

Wir

e

Eq

uip

me

nt

Gro

un

d

Gre

en

Fle

x C

on

du

it A

ssem

bly

Fle

x C

on

du

it

Co

nd

en

ser

Sta

nd

Bla

ck

White

Gre

en

Wir

e

Eq

uip

me

nt

Gro

un

d

Gre

en

Bla

ck1

20

VA

C1

20

VA

C

Me

tal

Co

nd

uit

Fle

x C

on

du

it A

ssem

bly

Wa

rnin

g:

Fo

r 2

20

VA

C, r

ew

ire

p

er

alte

rna

te w

irin

g.

Bla

ck

Wh

ite

Wh

ite Wh

ite

Wh

ite

Bla

ck

Bla

ckB

lack C

on

tro

l Bo

x

Wh

ite

Wh

ite

Bla

ck

Bla

ckB

lack

Re

d

Sta

rt

Ca

pa

cito

r

Ru

n

Ca

paci

tor

Black

Re

f.C

irc.

Ag

it.C

arb

.

Black

Re

d

Re

dW

hite

Bla

ckR

ed

Ice

Ba

nk

Se

nso

rA

gita

tor

Mo

tor

Cir

c.

Mo

tor

Co

mp

ress

or F

lex

Co

nd

uit

Ass

em

bly Green

Red

Black

Hig

h

Pre

ssur

e

Co

ntr

ol

CO

2 S

ign

al

Tra

nsf

orm

er

24

VA

C

Lo

w C

O2

Pre

ssu

re S

witc

h

Alternate WiringWhen the supply voltage is 230/115 VAC, disconnect autotransformer (0021035) from the circuit.1. Disconnect incoming power.2. Remove transformer box cover.3. Remove wire nut from black lead to H4.4. Replace wire nut on exposed end of black lead.5. Remove both red leads from (H1 and X1).6. Connect red leads together with a wire nut.7. Replace cover.

Identified TerminalToggle Switch


MODEL 72/72B WATER COOLED 3 PHASE

Lo

w C

O2

Pre

ssur

e

Stit

chC

O2 S

ign

al

Tra

nsf

orm

er

Rig

ht

Ha

nd

Un

it O

nly

Hig

h

Pre

ssu

re

con

tro

lC

om

pre

sso

r Co

mo

un

t A

sse

mbl

y w

ith W

ire

s

24

VA

C

Blu

eW

hite

Re

dB

lack B

lue

Bla

ck

Bla

ck

Black

Black

Blu

e

Wh

ite

Bla

ck

Bla

ckR

ed

Re

d

Blu

e

Black

Blue

Red

Re

d

Red

Re

d

Wh

ite

Bla

ck

Black

Black

Wh

ite

BlackWhite

Wa

ter

Bo

ost

er

Pu

mp

M

oto

r

Air

C

om

pre

sso

r M

oto

r

12

0V

AC

Me

tal

Co

nd

uit

Bla

ck

Gre

en

Wir

e

Eq

uip

me

nt

Gro

un

d

Gre

en

Fle

x C

on

du

it A

sse

mbl

y

Fle

x C

on

du

it

Co

nta

cto

r

Wh

iteW

hite

Bla

ckB

lack

Bla

ck

Bla

ckBla

ck

Ag

it.C

arb

.

Re

d Ag

itato

r M

oto

rC

ircu

latio

n

Mo

tor W

hite

Bla

ck

Ice

Ba

nk

Se

nso

r

Re

f.C

irc.

Re

d

RedWhite

Ca

rbo

na

tor

Pu

mp

M

oto

r

Wh

ite Bla

ck

Gre

en

Lo

ad

Co

ntr

ol B

ox

WhiteWhite

White

WhiteWhite

Black WhiteRed

BlackBlue

Neutral

Co

mo

un

t Ass

em

bly

w

ith W

ire

s4

x 4

Ha

nd

i-b

ox

Gre

en

Wir

e

Eq

uip

me

nt

Gro

un

dTo

20

4/1

20

VA

C

3 a

nd

4 W

ire

Su

pp

ly

Ca

rbo

na

tor

Tan

k

WhiteGreen

Black

3 C

on

du

cto

r C

ab

le

Sym

bo

lsW

ire

Nu

t, S

ma

ll Y

ello

wW

ire

Nu

t, L

arg

e B

lack

Wir

e A

ttach

ed

to

Co

mp

on

en

t

Co

nd

en

ser

Sta

nd


MODEL 37A

ir C

om

pre

sso

r M

oto

r

Black

Conduit with WireBlack

White WhiteBlack

GreenWhite

BlackGreen

Ag

itato

r M

oto

r

Ca

rbo

na

tor

Tank

“A

”

WhiteBlack

Green

Com

pre

ssor

3 W

ire

C

ord

Co

nd

uit

with

Wir

es

3 W

ire

Co

rd

Fie

ld In

sula

ted

Wiri

ng

Re

mo

ve C

on

den

ser

Ca

rbo

na

tor

Tan

k “B

”F

an

Blu

e Bla

ck

Gre

en

WhiteConduit with Wire

White

BlackConduit with Wire

Wa

ter

Boo

ste

r P

um

p

Mo

tor

Syr

up

S

tan

d

Pre

ssur

e

Sw

itch

Pre

ssu

re

Sw

itch

Tog

gle

Sw

itch

es

In 2

x 4

Bra

nch

B

oxe

s

2 x

4 B

ran

ch B

ox

Fie

ld C

onn

ectio

nC

on

duit

BlueBlack Black

Blue

Red

2 x

4

Bra

nch

B

ox

Gre

en

Bla

ckW

hite

Whi

te

Bla

ckW

hite

Blu

eC

on

tact

or

Gre

enB

lack

Bla

ckB

lue

Re

d

Re

frig

.

Re

d

Red

WhiteWhite White

Black

Ag

itato

r

Blue

Red

Re

d

Re

dR

ed

Black

WhiteBlue

WhiteBlack

Green

Wh

ite

“B”

Circ

.“B

” C

arb

.“A

” C

irc.

“A”

Ca

rb.

Bla

ck

Bla

ckB

lack

Bro

wn

Blu

e

LL

C

“A”

Ca

rb.

GreenWhite

Black

Whi

teR

ed

Whi

te

Whi

teW

hite

Bla

ckGre

en

Blu

eRed

Re

d Wh

ite

Whi

te

Bla

ck

Whi

te

Blu

e

Wh

ite

Bro

wn

“B”

Circ

.

“B”

Ca

rb.

“A”

Cir

c.

“A”

Ca

rb.

Wa

rnin

g fo

r 3

7 A

/37

W.

Hig

h P

ress

ure

C

on

tro

l

Wir

e N

ut,

La

rge

Wir

e N

ut,

Sm

all

Ice

Ba

nk

Co

ntr

ol

Wa

rnin

g

La

mp

Sys

tem

W

arn

ing

La

mp

o

n T

ow

er

Pre

ssur

e

Sw

itch Co

ndu

it

Tra

nsf

orm

er

Wir

e

Nu

t

Bla

ck

Wh

ite

12

0V1

20V

Bla

ck Whi

teB

lue R

ed

Gre

enS

eco

nda

ry

Ice

Ba

nk

Co

ntr

ol

Prim

ary

Ic

e B

ank

C

ont

rol

Gre

en

Scr

ew

s E

qu

ipm

en

t G

rou

nd

Wh

iteB

lack

Blu

eR

ed

2 x

4 B

ranc

h B

oxe

sTo

12

0/2

08

3 P

ha

se4

Wire

, 60

Hz,

30

Am

pS

upp

ly o

r 24

0 V

AC

3 P

has

e D

elta

Wire

gro

un

ded

Cen

ter

tap

.If

3 P

ha

se D

elta

Con

nec

t H

igh

Wild

Le

g T

o R

ed

Wir

e.


MODEL 371F

Contactor

Re

frig

.A

gita

tor

Gre

en

Green

BlackBlack

Gro

un

d

Scr

ew

Bla

ck

Gre

en

Blu

eBlu

eB

lue

Red

Red

Blue

Sec

on

dar

y Ic

e B

an

k C

on

tro

l

Gre

en

Green

Mo

de

l 37

1R

FM

ac.

8

Co

nd

en

ser

Fie

ld

Wir

ing

#11

R

ela

y

Blu

e

Gre

en

Bla

ckR

ed

Gre

en

Ca

paci

tor

37

AF

F

an

M

oto

r

Mod

el

371

AF

O

nly

Brown

Yel

low

Ye

llow

Wh

ite Bla

ckY

ello

wY

ello

w Gre

en

Bla

ck

Re

dB

lue White White

Blue

Blu

e

White

BlueBlackBlack

Red

Blue

Blue

Gre

en

Bla

ckR

edB

lue

Wh

ite

2 x

4 H

an

di B

ox

Gre

en

Wire

E

qui

pm

ent

Gro

und

Prim

ary

Ic

e

Ba

nk

Co

ntr

ol

To 1

20

/20

8 3

Ph

ase

4 W

ire

, 60

Hz,

30

Am

pS

upp

ly o

r 2

40 V

AC

3 P

has

e D

elta

Wire

gro

un

ded

Ce

nte

r ta

p.

If 3

Ph

ase

Del

ta C

onn

ect

H

igh

Wild

Le

g T

o R

ed

W

ire

.

Hig

h

Pre

ssur

e C

on

tro

l 2

50

PS

I

Wire

Nu

t S

ma

ll

Ref

rig

. W

arn

ing

L

amp

Red

Red

Red

BlueBlack

Co

mp

ress

orFle

x C

on

d.

Ag

itato

r M

oto

r


MODEL 37F

Contactor

Re

d

Se

con

dar

y Ic

e B

an

k C

on

tro

l

White

Wh

ite

Ye

llow

Ye

llow

Wh

ite Bla

ck

Brown

37

AF

F

an

M

oto

r

Mo

de

l 3

7A

F

Onl

y

Agi

tato

r M

oto

r

Ca

rbo

na

tor

Tan

k “A

”

3 W

ire

Co

rd

Gre

en

Wh

iteBla

ck

Fie

ld

Wir

ing

Mo

de

l 37

AF

Mac

. 6

C

ond

en

ser

#9

Re

lay

3 W

ire

Co

rdC

arb

on

ato

r Ta

nk

“B”

Gre

en

Wh

iteB

lack

BlackBlack

Green Yellow

Gre

en/

Yel

low

Bla

ckW

hite

Gre

en

BlueWhite

Green Yellow

Gre

en

Yel

low

LLC

“B

” C

arb

.

Lo

ad

Gro

un

d S

cre

w

Gre

en

Yel

low

Wh

ite

Blue

Bla

ck

Co

mp

ress

or

Bla

ck

Co

mp

ress

or

Fle

x C

on

d.

RedBlack

Blue

So

da

Co

ndu

itCO

2 W

arn

ing

La

mps

on

To

wer

Pre

ssu

re

Sw

itch

Air

Pu

mp

Mo

tor

Fle

x C

ond

.

Air

Pum

p

Pre

ssur

e

Sw

itchB

lue

Bla

ckB

lack

Red

BlueRed

Tra

nsf

orm

er

12

0V

Air

Com

p.A

gita

tor

Re

frig

.

Bla

ck

RedRed

White

Brown

Blue

Blu

e

Wh

ite

Whi

teW

hiteB

lack

Pum

p

Bo

oste

rR

efri

g.

Wa

rnin

g

Lam

p

“B”

Cir

c.

Gre

en

Bla

ckR

ed

Gre

en/

Ye

llow

Bla

ckW

hite

Gre

en

Whi

teB

lue Red

White

BlueBlack

Black

Blu

e

WhiteBlue

Pre

limin

ary

Ic

e B

an

k C

on

tro

l

Hig

h

Pre

ssu

re

Co

ntr

ol

25

0P

SI

White

Blu

eRedBla

ckG

ree

nY

ello

wYe

llow

2 x

4 H

and

i Bo

x

Gre

enB

lack

Re

dB

lue

Wh

ite

Gre

en

Wire

E

qu

ipm

ent

G

rou

nd

To 1

20/

20

8 3

Ph

ase

4 W

ire

, 60

Hz,

30

Am

pS

upp

ly o

r 2

40 V

AC

3 P

has

e D

elta

Wir

eg

rou

nd

ed C

ent

er

tap

.If

3 P

ha

se D

elta

Con

nec

t H

igh

Wild

Leg

To

Re

d W

ire

.

Bro

wn

Wh

ite

Blu

eW

hite

Bla

ck

Wh

ite

Re

d

Wh

ite

“B”

Cir

c.

“B”

Car

b.

“A”

Cir

c.

“A”

Car

b.

Bla

ckW

hite

Gre

en

Bla

ckW

hite

Black

Green

BrownWhite

BlueWhite

RedWhite

LLC

“A

” C

arb

.

Black

Black

Bla

ckB

lack

Blu

e

Blu

e

Red

“B”

Ca

rb.

“A”

Cir

c.“A

” C

arb

.

Wa

ter

Boo

ste

r P

um

p M

oto

r

Fle

x C

ond

.Bla

ck

Wh

ite

Bo

oste

r P

ress

ure

S

witc

h

Bla

ck

Whi

te

Wire

Nu

t Sm

all

Bla

ck

Wir

e N

ut L

arg

e


MODEL 37T

CO

2 P

ane

l Lam

p #

6

Lam

p #

7

Not

e:

Lam

ps 6

an

d 7

are

ou

t of C

O2

ligh

ts

loca

ted

on

the

dis

pe

nsin

g t

owe

rs.

Wiri

ng

is p

rovi

ded

with

co

ndu

it an

d

tow

ers

.

Not

e:

On

dom

est

ic r

em

ote

an

d a

ir u

nits

, W

ire #

T3

go

es

to w

ire

#T

3 o

n m

oto

r st

art

rel

ay.

Wat

er

Ba

thA

git.

M

oto

r M

7

Car

b. T

an

k “A

”C

arb

. Ta

nk

“B”

Re

mo

te

Fa

n

With

R

em

ote

C

ond

ens

er

Onl

y

Hig

h P

ress

ure

C

ut-

out

With

Air

Co

ole

d

Onl

y

Fa

n M

8P

S-6

Jun

ctio

n B

ox

GrnBlkWht

WhtBlkGrn

LLC

“B

”IB

C

1M

5

IBC

2

LLC

“A

”

Ca

rb.

Mot

or

“A”

Circ

. M

oto

r “A

”

Car

b.

Mo

tor

“B”

Cir

c.

Mo

tor

“B”N

eutr

alG

rou

nd

La

mp

#4

La

mp

#5

La

mp

#

3L

am

p #

2L

am

p #

1

Co

ntr

ol B

ox

Fie

ld

Con

nec

tion

s

Re

frig

era

tion

Com

pre

ssor

Air

Co

mp

ress

or

Mo

tor

Bo

ost

er

Pu

mp

M

oto

r

Syr

up

Sta

nd

SW

Filt

er

By-

pass

Note: all switches shown in their normal positions.

Note:

MS Relay Motor Start

SW Switch

PS Pressure Switch

CR Control Relay

LLC Liquid Level Control

IBC Ice Bank Control

M Motor

T Transformer

J Connection Receptacle

P Connector Plug

TS Terminal Strip

Incoming Power – 3 Phase, 4 wire wiring supplied by installer from junction box to fan.

Conductor Color Codes

Domestic Export

L1 Black L1 Black

L2 Red L2 Brown

L3 Brown L3 Brown

L4 White L4 Lt Blue

L5 Grn/Yel L5 Grn/Yel


MODEL 37T SCHEMATIC DIAGRAM

Refrig. Compressor

AJR or Remote Fan Motor

Carb. “A” Motor

Circ. “A” Motor

Carb. “B” Motor

Circ. “B” Motor

Low Incoming Water Press Carb. “A”

Low Incoming Water Press Carb. “B”

Booster Pump Motor

Low Incoming Water Press Booster Pump

Air Comp Motor

Agitator Motor

Refrig Comp Motor Start Relay

Primary Ice Bank Control Failure

Filter In By Pass

Carb “A” Low Press Relay

Carb “B” Low Press Relay

Booster Pump Low Press Relay

Out of CO2 Tower 1

Out of CO2 Tower 2

Lamp 5

Lamp 6

Lamp 7

Lamp 4

Lamp 3

Lamp 2

Lamp 1

Grn/Yel

Wht

Blk

Red

Brn

Incoming Power

3 Phase 4 Wire

LLC “A”

LLC “B”

PS-4

PS-5

PS-6

PS-1

PS-2

PS-3

PS-7

SW-9 JI-2JI-1

99

J2

T1

IBC-2 IBC-1SW 8

SW 7

SW 6

SW 5

SW 4

SW 3

SW 2

SW 1CR1

CR1

CR2

CR2

CR3

MS

MS

MSM9

M8

M1

M2

R

M3

M4

M5

M6

M7

R

R

M5

R

A

CR1

CR2

CR3

A

A


MODEL 37K

CO

2

Pan

el

Ag

it.

Mot

or

Ca

rb.

Tank

“A

”C

arb

. Ta

nk

“B”

Re

mot

e

Fa

n

With

R

emo

te

Co

nde

nse

r O

nly

Hig

h

Pre

ssur

e C

ut-

out

With

Air

Coo

led

O

nly

LLC

“A

”IB

C

1IB

C

2LL

C

“B”

Ca

rb.

Mo

tor

“A”

Circ

. M

oto

r “A

”

Car

b.

Mo

tor

“B”

Cir

c.

Mo

tor

“B”N

eutr

alG

rou

nd

La

mp

#2

La

mp

#1

M6

R

efr

ig.

Co

mp

Lam

p #

4

Rf

iti

Tow

er #

1

Lam

p #

3

24

VA

CTo

we

r #

2

No

tes: O

n d

om

est

ic r

em

ote

an

d a

ir u

nits

, wir

e #

13

go

es

to t

erm

ina

l #T

3 o

n M

S (

Mot

or

Sta

rt R

ela

y).

On

Exp

ort

re

mo

te a

nd

air

unit

wire

#13

goe

s to

Ne

utr

al (

TS

#11

).

2.

All

switc

hes

show

n in

the

ir n

orm

al p

osi

tion.

Note: Out of CO2 (24 Y) lamps #3 and #4 located on dispensing towers wiring supplied with conduit and towers. For Schematic wiring see tower wiring diagram.

Component Legend


SW Switch

PS Pressure Switch

CR Control Relay



M Motor

TS Terminal Strip Incoming Power – 3 Phase, 4 wire wiring supplied by installer from junction box to fan.

Conductor Color Codes

Domestic Export

L1 Black L1 Black

L2 Red L2 Brown

L3 Brown L3 Brown

L4 White L4 Lt Blue

L5 Grn/Yel L5 Grn/Yel


MODEL 37K SCHEMATIC DIAGRAM

Carb. “A” Motor

Circ. “A” Motor

Low Incoming Water Press

Warning Light

Grn/Yel

Lt. Blu

Blk

Red

Brn

Incoming Power

3 Phase 4 Wire

LLC-A

PS-1

CR1

CR1

H6

M1

R

M4

M5

IBC-2MS

Blk

Red

BrnCompressor

Fan MotorGrn/Yel

Grn

/Yel

Yellow (Remote)Blk (Air)

Yellow (Remote)Brn (Air)

Lt. Blu

Lt. BluBrn

Grn/Yel

Lt. Blu

GrnWhtBlk

Grn/Yel

M2

Blk

Carb “A” On/Off

Switch-1Blk Blk

Blk

Circ “A” On/Off

Switch-2Blk Blk

Blk

Blk

Lt. Blu

Lt. Blu

CR1

CR2

LLC-B

M3Lt. BluBrn

Grn/Yel

GrnWhtBlk

CR2Brn

Carb “B” On/Off

Switch-3Brn Brn

CR2Brn

Circ “B” On/Off

Switch-4Brn Brn

Agitator On/Off

Switch-5Blk Blk

Refrig On/Off

Switch-6Blk Blk

IBC-1 PS-2Blk Blk Brn Lt. Blu

R

Blk

Blk

Lt. Blu

Lt. Blu

Ribbed

Grn/Yel

Grn/Yel

Carb “A” Motor Low Press RelayCarb “B” Motor

Low Press Relay

Carb “B” Motor

Circ “B” Motor

Agitator Motor

Refrig Comp Motor Start

RelayPrimary I.B.C.

Failure Warning Light


MODEL 44A & R WIRING DIAGRAM

Agitator Motor

Carb. Pump Motor

Circ. Pump Motor

Blk

Wht

Wh

t Blu

Wht

Blk

Wht

Ribbed Conductor

Green

BlackRed

Load

Carb. Tank Blk

Wht (Neutral)

Yellow

Brn

Yellow

Remote Condenser Model 44A

Only

Wht

Field Wire

“J” BoxLine

230 VAC 60 Hz 1 Ph

Start Relay

Model 44 R Only

Start Cap.

Run Cap. Capacitor

Box (See Cover)

Compressor

Model 44 A Only

Cond. FanBlk

Brn

BluRed

Blk

Term

Term Block B

lk

Brn

Brn

Contactor

Carb. Pump Motor

Black

Black

Black

Black

Agitator

Carb. A

Black

BrnCirculator

Brn

Brn

High Pressure Limit Switch

Model 44 A Only

Ice Bank Control

Refrig.

BrnYellow


MODEL 44K WIRING DIAGRAM

Component Legend


SW Switch ON/OFF

PS Pressure Switch

CR Control Relay



M Motor

TS Terminal Switch

208-230/60Hz 1 Phase

L1 L2 L3

Lamp 4

Lamp 2

Lamp 1

Lamp 3

PS1

SW1

SW2

SW3

PS2 IBC1 IBC2

R

R

CR1

MS

M1

M2

GR

R

M3

M4

CL

R

S

SW4

CR1-1

CR1-2

LLCA

LLCB

Start Relay

Fan Motor

MS MS

PS

Start Cap Run Cap

Compressor

Circ. Motor

Carb. “B”

Carb. “A”

Agitator Motor

Low Water Pressure


MODEL 44K22

Com

pre

ssor

S

witc

h

#1

Ag

itato

r S

witc

h

#2

Ca

rbo

na

tor

Sw

itch

#

3

Cir

cula

tor

Sw

itch

#

4

La

mp

4L

am

p 3

La

mp

2

LL

C

“B”

L o a d

Ribbed

LL

C

“A”

L o a d

Gre

enR

ed

Bla

ck

CR

1

Gro

un

d

Scr

ew

Blue

Brown

Black

HS

IBC

#

2IB

C

#1

Black

Ribbed Ag

it.

Mo

tor

M1

Ca

rbo

na

tor

BlackWhiteRed

Green

Car

b.

Mo

tor

“B”

M2

Cir

c.

Mot

or

M2

Car

b.

Mo

tor

“A”

M2

Jun

ctio

n B

ox

Inco

min

g P

ow

er

20

8/2

30

I.P

. H

. (2

Wir

e)

Gre

en

/Ye

llow

(G

rou

nd

)B

row

nB

lue

Re

mo

te F

an

(Y

ello

w)

Re

mo

te F

an

(Y

ello

w)

Bla

ckB

row

n

Bla

ckB

lue

Re

d

Gre

en

Yel

low

Bla

ck

Re

lay

Bla

ck

Bla

ck Bla

ck

Gre

en/

Ye

llow

BlueBlack

Red

Co

mp

ress

or

Fa

n

Mo

tor

M5

Air

Co

mp

. M

oto

r M

6

Wat

er

Bo

ost

er

Mo

tor

M7

Blue

Blue

Brown

BlackBla

ck

Blu

e

Bro

wn

Bla

ck

Bro

wn

Blu

e

Blu

e

Hig

h P

ress

ure

C

ut-

ou

tS

witc

h/J

un

ctio

n B

ox

(Op

tion

al)

(Op

tion

al A

ir C

om

pre

ssor

an

d W

ate

r B

oos

ter)

Bla

ck

Ru

n

Cap

aci

tor

Sta

rt

Cap

aci

tor


MODEL 44M04 SCHEMATIC DIAGRAM

Component Legend


SW Switch ON/OFF

PS Pressure Switch

CR Control Relay



M Motor

TS Terminal Switch

208-230 1 Phase

L1 L2

Export Units OnlySW5

SW6

SW1

SW3

PS2 IBC1 IBC2

R

MS

M1

M2

G

A

M3

M4

CR1

R

S

SW4

CR1-1

CR1-2

LLCA

LLCB

Start Relay

Fan Motor

MS MS

Start Cap

Run Cap

Compressor

Circ. Motor

Carb. “B”

Carb. “A”

Agitator Motor

Water Booster

SW2

Export Units Only

M6

M7

R

OL

PS1

Air Compressor

Compressor

Lamp #1

Lamp #2

Lamp #3

Lamp #4

Low Water Pressure

M5


MODEL 50H

Co

mp

ress

or

Ru

n

Sta

rt

Sin

gle

Ph

ase

Un

its O

nly

Brn

Brn

Red

Bro

wn

Bla

ck

Bro

wn

Brn

Red

Blk

Brown

Red

Black

Co

mp

ress

or

Fa

n

Mo

tor

Ag

itato

r S

witc

h

Ca

rb.

Sw

itch

A

Cir

c.

Sw

itch

A

Ca

rb.

Sw

itch

B

Cir

c.

Sw

itch

B

Bla

ck Bla

ck

Bla

ck Bla

ck

Bro

wn

Bro

wn

Bro

wn

Blk Blk

Bro

wn

Bro

wn

Bro

wn

Wh

iteB

lack

Whi

te

Cir

cula

ting

P

um

p

“A”

Ca

rbo

na

tor

Pu

mp

“A

”

Cir

cula

ting

P

um

p

“B”

Ca

rbo

na

tor

Pu

mp

“B

”

Bro

wn

Bro

wn

Bro

wn

Bro

wn

Blu

e

Blu

e

Blu

e

Blu

e

L.L

.C

“B”

Blk

L.L

.C

“A”

Blk

RedBrn

Blk

Black

RedGreen

Co

nta

cto

r

Grn

/Ye

l

Blu

Blk

Blk

Brn

2 x

4 B

ox

Bla

ckR

ed

Grn

Tan

k A

Bla

ckR

edG

rn

Tan

k B

Ag

itato

r M

oto

r

Pri

mar

y Ic

e

Ba

nk

Co

ntr

ol

Hig

h P

ress

ure

C

ut-

ou

t Bro

wn

Bro

wn

Brn

Ba

ck u

p

Ice

Ban

k C

ont

rol

(opt

ion

al)

Bro

wn

Bro

wn B

row

n

I.B

.C.

War

nin

g L

am

p

(op

tion

al)

Term

ina

l B

lock

Bro

wn

Bro

wn

Bro

wn

Bro

wnBro

wn

Wh

iteW

hite

Whi

teWh

t

Bla

ck

Bla

ck

Blk

Blk

Blk W

ht

Wh

t

Brn

Red

No

te:

Re

d w

ire

fro

m c

ont

act

or

to 2

x 4

bo

x an

d R

ed w

ire

fro

m c

on

tact

or

to c

om

pre

sso

r a

re n

ot u

sed

on

sin

gle

p

hase

un

its.


MODEL 50M04

Component Legend


SW Switch ON/OFF

PS Pressure Switch

CR Control Relay



M Motor

TS Terminal Switch

120-208/240 60Hz 3 Phase

L1 L2

SW #1 Agitator

PS-1

LLC “A”

CR CR

Compressor

LLC “B”

SW #2 Carb “A”

SW #3 Carb “B” Time Delay

Relay

L3 L4

Carb Motor “B”

Carb Motor “A”

Agitator Motor

M1

M2

M3

Lamp 1

Circ Motor “B”

Circ Motor “A”M4

M5

CR

SW #4 Circ “A”

SW #5 Circ “B”

SW #6 Refrig

Lamp 2

Fan Motor “1” Fan Motor “2”

PS-2 IBC “1”CR

Control RelayIBC “2”

M M


FRONT DRAW TOWER WIRING DIAGRAM

Grn/Yel

Re

d

BlkWa

ter

Sw

itch

Key

Boa

rd

Sod

a S

witc

h

C o n t r o l

OF

F-O

N

Sw

itch

Sp

lice

Blk

Brn

Red

Org

Ye

lG

rnB

luV

ioG

ryW

ht

BlkB

lkW

ht

BlkBrnRedOrgYelGrnBluVioGryWht

Blk

WhtWhtRedBlk

Red

Blu

Wht

Blk

Wht

Blk

Wht

Blk

Wht

Blk

Red

Blu

Wht

Wht

Red

Blk

Grn

/Ye

l Blk

Blk

Blk Blk

Blk

Grn

/Ye

lWhtBlk

WhtBlk24

VA

C

Wht

Wht

(Optional use) CO2 Light

Blk

Red

Whi

teW

hiteLD

1LD

2LD

3LD

4LD

5L

D6

J20

J15

J16

J17

WS

WS

WS

WS

WS

WS


PASS-THROUGH TOWER WIRING DIAGRAM

24

VA

C

Ref

. Co

ndui

t

OF

F-O

N S

W

24

VA

C

Low

C

O2

Lam

p

Low

C

O2

Lam

p CO

2 P

ress

ure

SW

O

n R

efr

ig. U

nit

Wa

ter

SW

.G

rn/Y

el

Re

d

Wh

tB

lk

Blk

RedBlu B

lk

S W

S W

S W

S W

S W

S W

Fro

nt

Key

boa

rd -

Re

ar

Vie

w

Re

ar

Ke

yboa

rd -

Re

ar

Vie

w

RedBlu

BlkB

lk

Grn

/Ye

lS

oda

SW

.


Soda Wiring Diagrams

MODEL 2803 (120V 60 HZ)

Fan

Mot

or

(Air

Coo

led

On

ly)

Sta

rt

Cap

acito

r

Com

pres

sor

O/L

RIB

Ca

rbo

nato

r Ta

nk

Ice

Ban

k C

ont

rol

Brn Blu

Wat

er

Coo

led

Onl

y

Pre

ssu

re

Sw

itch

Liqu

id L

evel

C

ontr

ol

Car

bona

tor

Mot

or

Cir

cula

tor

Mot

or

Blk

Re

dG

rn

Brn

Blu

Brn

Blu

Brn

Brn

Brn

Brn

Blu

Blu

Ag

itato

r M

otor

Rib

be

d

Brn

Brn

Blk

Wht

Junc

tion

Box

Re

frig

erat

ion

ON

/OF

F

ON

/OF

F

Cir

cula

tor/

Car

bon

ator

Lo

ad


MODEL 2803 (230V 60 HZ)

Fan

Mo

tor

(Air

Coo

led

Onl

y)

Sta

rt

Ca

paci

tor

Com

pres

sor O

/L

Ye

l

Car

bona

tor

Tank

Ice

Ban

k C

ontr

ol

Brn Blu

Pre

ssur

e S

witc

h (W

ater

Coo

led

On

ly)

Liq

uid

Lev

el

Con

trol

Ca

rbon

ato

r M

oto

r

Cir

cula

tor

Mo

tor

Blk

Re

dG

rn

Brn

Blu

Brn

Blu

Brn

Rib

be

d

Blu

Brn

Blu

Blu

Agi

tato

r M

oto

r

Brn

Term

B

lock

Ref

rig

ON

/OF

F

Circ

ula

tor/

Ca

rbon

ato

r O

N/O

FF

Lo

ad

Brn

Brn

Brn

Grn

Gro

und

in

Ele

ctric

al B

ox

Junc

tion

Bo

x

Blk

Brn

BluR

ed

Ribbed

Blk


MODEL 2803 INTERNATIONAL (230V 50 HZ)

Fan

Mot

or

(Air

Coo

led

Onl

y)

Sta

rt

Ca

paci

tor

Com

pres

sor O

/L

Ca

rbo

nato

r Ta

nk

Ice

Ba

nk

Con

trol

Brn Blu

Pre

ssu

re S

witc

h

(Wat

er C

ool

ed

Onl

y)

Liq

uid

Lev

el

Con

trol

Car

bon

ator

M

oto

r

Circ

ulat

or

Mot

or

Blk

Re

dG

rn

Brn

Blu

Brn

Blu

Rib

be

d

Blu

Brn

Blu

Blu

Ag

itato

r M

otor

Brn

Term

B

lock

ON

/OF

F

Ref

rig

ON

/OF

F

Circ

ulat

or/

Car

bona

tor

Lo

ad

Brn

Brn

Brn

Grn

Gro

und

in E

lect

rica

l Box

Jun

ctio

n B

ox

Blk

Ribbed

Blk


MODEL 2803 ELECTRONIC IBC


MODEL 11

Agitator Motor

Carbonator Motor

Carbonator Motor

Agitator Motor

Carbonator Motor

Circulator Motor

Refrigeration Unit

Carbonator Tank

Compressor

Run Capacitor

Start Capacitor

Relay

O/L

Fan Motor

Junction Box

I.B.C.

Ribbed

LCC

Lo

ad

Blk

Brn

Brn

Brn

Brn

Brn

Brn

BrnBrn

Ribbed

Blk

Red

Red

Blk

Brn Blu

Blk Wht

Blu

Brn

Re

d Ye

l

Blu

Brn

BrnB

rnB

lu

Blu

Blk

Re

d

GrnRedBlk

Term

Grn

Export230 VAC, 50 Hz, 1 Phase

Domestic120 VAC, 60 Hz, 1 Phase


MODEL 11 ELECTRONIC IBC(BLK)

(BRN)

(BLK)

(RED)

(BLUE)

(BLK)

(YEL)

(RED)

(L1)

USED ON MODELS

SS901120

SS901122

SS901139

ONLY

(RIBBED)

(213)

(L2

& N)

(132)

(SMOOTH)

(211)

(293)

(BRN)

(215)

(130)

(217)

(219)

(293)

(292)

(RIBBED)

(BRN)

(292)

(291)

(290)

(373)

(374)

(371)

(370)

(GRN)

(RED)

(BLK)

(GRN)

(RED)

(BLK)

SS901125 ONLY

(RED)

CARB

MOTOR A

CARB

SWITCH

SW2

MODEL 11M R404A

WIRING DIAGRAM

120V/60Hz/1PH

230V/50Hz/1PH

230V/60Hz/1PH

8014273

REV 04

CAUTION: DISCONNECT POWER BEFORE WORKING

ON ELECTRICAL CIRCUITRY.

3 1 5IBC-1

SENSOR

FAN

MOTOR

CIRC

MOTOR

START

CAP

RUN

CAP

R

C

S

COMPRESSOR

CARB

SWITCH

SW5

AGITATOR

SWITCH

SW1

REFRIGERATION

SWITCH

SW4

CIRCULATOR

SWITCH

SW3

AGITATOR

MOTOR

2 1RELAY

5 4

TS-1

O/L

LC H L

NL N

LLC-A

LC H L

NL N

LLC-B

CARB

A

CARB

B

CARB

MOTOR B


MODEL 42 & 44 ELECTRONIC IBC


MODEL 42 & 44 (WITH ERC 50 HZ)

50HZ 50HZ


MODEL 42 & 44 (WITH ERC 60 HZ)

60HZ 60HZ


MODEL 44 (120V 60 HZ)

Component Legend


SW Switch ON/OFF

PS Pressure Switch

CR Control Relay



M Motor

TS Terminal Switch

L1 L2

M8

M7

MS

M1

R

G

M2

Export Units only

Export Units only

SW5

SW6

SW1

SW2

SW3

PS2 IBC1 IBC2

Water Booster

Air Compressor

Compressor

Lamp #1

Lamp #2

Agitator Motor

Carb “A”

Lamp #3

Carb “B”

Lamp #4

Circ Motor

Low Water Pressure

MS

M4

CR1

A

R

LLCA

LLCB

CR1-1

CR1-2

SW4

PSI

MS MS Start Relay

Compressor

Start Cap

Run CapFan Motor

MS

OL

R

S


MODEL 44 (230V 60 HZ)

Co

mp

ress

or

SW

#1

Ag

itato

r S

W#

2

Ca

rbo

na

tor

SW

#3

Cir

cula

tor

SW

#4

Hig

h P

ress

ure

C

ut-

ou

t

Fa

n

Mo

tor

(Air

Un

it O

nly

)

Co

mp

ress

or

Bo

x A

sse

mbl

y S

tart

PS

1

PS

2

AS

tart

C

ap

A

Grn

/Yel

Grn

/Ye

l

Re

lay

Blk

Blk

2

Blk

Blk

Brn B

lkB

rnR

ed

BrnBlkRed

Circ

ula

tor

Mo

tor

“A”

(M2

)

Cir

cula

tor

Mot

or

“B”

(M4

)

Car

bon

ato

rM

oto

r “B

” (M

3) Ju

nct

ion

Box

- G

rn/Y

el-

Brn

- B

lu-R

em

ote

Fa

n (Y

el)

-Re

mo

te F

an

(Yel

)

Inco

min

g P

owe

r2

08

/26

0 V

AC

1 P

ha

se,

2 W

ire

Ag

itato

rM

oto

r M

5

RedWhtBlk

Grn

Grn

Blk

Rib

be

d

No

te: w

ire

s m

ust

be

ro

ute

d t

hro

ug

h

sepa

rate

bu

shin

g,

IBC

#

1IB

C

#2

La

mp

1L

am

p 2

La

mp

3L

am

p 4

LC

C

“A”

LC

C

“B”

MS

L o a d

L o a d

CR

1

TS

1

Grn

Re

dW

ht

Grn

Re

dB

lk

Ribbed

G1

Grn

G2

G3

G4

L1

L2

L1

L2

Brn

Blk


MODEL 50 (50 HZ)

50HZ 50HZModels

50MAX04 TS905053-35350MRX04 TS905054-35350MWX04 TS905055-353

Caution: Disconnect power before working on electrical circuitry.

See Serial Plate for Voltage Shown in the OFF PositionPower Supply Block

Terminal Strip

Remote Cond

Air Option

Fan Motor

Fan Motor

(Black)

(Black)

Contactor

Refrigeration Agitator Switch

HPCO

IBC Contactor Coil

RMT Only Liquid Line Solenoid

AGT Motor

Low Water Pressure Relay Coil

Low Water Pressure Switch

Carb A Motor

Load

Load Carb B Motor

Circ A Motor

LLC

(Grn)

(Red)

(Blk)

Tank A

Tank B

LLC

(Grn)

(Red)

(Blk)

Carb Motor A Switch

Circ Motor A Switch

LWPR

LWPR Carb Motor B Switch

Circ Motor B Switch

Circ B Motor


MODEL 50 (60 HZ)

60HZ 60HZModels

50MA04 TS905050-36350MR04 TS905051-36350MW04 TS905052-363

50MR04Q/T TS905046-263


See Serial Plate for Voltage Shown in the OFF Position

Remote Cond

Air Option

Fan Motor

Fan Motor

(Black)(Black)

Contactor


HPCO

IBCContactor Coil


AGT Motor

Low Water Pressure Relay

Coil

Low Water Pressure Switch

Carb A Motor

Load

Load Carb B Motor

Circ A Motor

LLC A

(Grn)

(Red)

(Blk)

Tank A

Tank B

LLC B

(Grn)

(Red)

(Blk)

Carb Motor A Switch

Circ Motor A Switch

LWPR

LWPR Carb Motor B Switch

Circ Motor B Switch

Circ B Motor

Sensor


MODEL 50 (WITH ERC 50 HZ)

50HZ 50HZModels


See Serial Plate for Voltage Shown in the OFF PositionPower Supply Block

Terminal Strip

Remote Cond

Air Option

Fan Motor

Fan Motor

(Black)

(Black)

Contactor

Contactor Coil


AGT Motor

P/N 020001985

Jumper

Carb A

Carb A

Circ A

Circ B

Agitator Carb A Carb A Circ A Circ B

P/N 020001986

HP

CO

CO

2 P

ress

ure

Wa

ter

Pre

ssu

re

Su

ctio

n T

em

pD

isch

arg

e T

em

pW

ate

rba

th T

em

pC

irc

B T

em

p

Cir

c A

Te

mp

Le

vel P

rob

e

Ice

Pro

be

Ca

rb A

Pro

be

Ca

rb B

Pro

be

P/N

07

05

-10

1

Earth

RC

L/N

L


MODEL 50 (WITH ERC 60 HZ)

60HZ 60HZModels



Remote Cond

Air Option

Fan Motor

Fan Motor

(Black)(Black)

Contactor

Contactor Coil


AGT Motor

P/N 020001985

Carb A

Carb A

Circ A

Circ B

Agitator Carb A Carb A Circ A Circ B

P/N 020001986

HP

CO

CO

2 P

ress

ure

Wa

ter

Pre

ssur

e

Su

ctio

n T

em

pD

isch

arg

e T

em

pW

ate

rba

th T

em

pC

irc

B T

em

p

Cir

c A

Te

mp

Le

vel P

rob

e

Ice

Pro

be

Ca

rb A

Pro

be

Ca

rb B

Pro

be

P/N

07

05

-10

1

Earth

RC

L/N

L


Super-Chil Wiring Diagrams

MODEL SC180 (120 VAC)

Component Legend

L1 Line 1

L2 Neutral

M Motor

MS Contactor

PS Pressure Switch


Optional Circulator

Motor

Agitator MotorStart Relay

Compressor

Run Cap Start Cap

Fan

IBCPS

L1 L2

M

MS

M1

SW4

SW1

SW2

M5

MS MS

OL

R

S


MODEL SC180 ELECTRONIC IBC



Component Legend

L1 Line 1

L2 Neutral

M Motor

MS Contactor

PS Pressure Switch


Optional Circulator

Motor

Agitator Motor

CompressorIBC

L1 L2

M

M2

M1

SW4

SW1

SW2

O/L

Fan

Start




MODEL SC900 & SC1000



Component Legend

L1 Line 1

L2 Neutral

M Motor

MS Contactor

PS Pressure Switch


Agitator Motor

CompressorIBC

L1 L2

M1

SW1

O/L

Fan

Start

M2120 Volt, 60 Hz, 1 Phase Domestic230 Volt, 50 Hz, 1 Phase Export


MODEL SC1000 ELECTRONIC IBC


MODEL SC1000 (WITH ERC 50 HZ)

50HZ 50HZ


MODEL SC1000 (WITH ERC 60 HZ)

60HZ 60HZ


MODEL SC2000 (50 HZ)

50HZ 50HZ

ModelsSC2000AX TS905063-353SC2000RX TS905064-353SC2000WX TS905065-353



Power Supply Block

Remote Cond

(Black)

(Black)

Contactor

Air Option

Fan Motor


Terminal Strip

IBC

Circ Motor ACirc Motor A

Switch

HPCO

Optional

Fan Motor

Sensor

Agt Motor

Contactor Coil



MODEL SC2000 (60 HZ)

60HZ 60HZModels

SC2000A TS905060-363SC2000R TS905061-363SC2000W TS905062-363



Remote Cond

(Black)(Black)

ContactorAir Option

Fan Motor


Terminal Strip

IBC

Circ Motor ACirc Motor A

Switch

HPCO

Optional

Fan Motor

Sensor

Agt Motor

Contactor Coil



WIRING DIAGRAM FRONT DRAW TOWER

Grn/Yel

Re

d

BlkWa

ter

Sw

itch

Key

Boa

rd

Sod

a S

witc

h

C o n t r o l

OF

F-O

N

Sw

itch

Sp

lice

Blk

Brn

Red

Org

Ye

lG

rnB

luV

ioG

ryW

ht

BlkB

lkW

ht

BlkBrnRedOrgYelGrnBluVioGryWht

Blk

WhtWhtRedBlk

Red

Blu

Wht

Blk

Wht

Blk

Wht

Blk

Wht

Blk

Red

Blu

Wht

Wht

Red

Blk

Grn

/Ye

l Blk

Blk

Blk Blk

Blk

Grn

/Ye

lWhtBlk

WhtBlk24

VA

C

Wht

Wht

(Optional use) CO2 Light

Blk

Red

Whi

teW

hiteLD

1LD

2LD

3LD

4LD

5L

D6

J20

J15

J16

J17

WS

WS

WS

WS

WS

WS


Circuit Schematics

PLUMBING CIRCUIT DIAGRAMS — MODEL 28031

23

45

6

1

2

3

4

5

6

3/8

" B

arb

x

3/8

" T

ub

e

Dis

pen

sin

g T

ow

er

Syr

up

BIB

Ca

rbon

ato

r Ta

nk

Cir

cula

ting

W

ate

r C

oil

Circ

ula

ting

W

ate

r P

ump

Ref

rig

era

tio

n U

nit

Syr

up

C

oil

To

Tow

er

3/8"

Ba

rb x

3

/8"

Tu

be

Fro

m

Syr

up

Ta

nks


PLUMBING CIRCUIT DIAGRAMS — MODEL 11M ROOT BEER

Single Tower Plumbing

Installation Kit(020001441)

020001403

00861302Pressurized

Filtered Water Supply

Circ Pump

Carb Tank

Primary Carb Pump


Model 11M Root Beer Dual Tower Plumbing


020001403

00861302

Pressurized Filtered Water Supply

Primary Carb Pump

Circ Pump

Carb Tank

Tee Kit(020001411)


Model 11M Root Beer Three Tower Plumbing


020001403

00861302

Pressurized Filtered Water Supply

Primary Carb Pump

Circ Pump

Carb Tank

Tee Kit(020001411)

Tee Kit(020001411)


PLUMBING CIRCUIT DIAGRAMS — MODEL 44M

Pressurized Water Circuit Diagram

To C

offe

e M

achi

ne

To Ic

e M

achi

ne

Pho

spha

te

Fee

der

(opt

iona

l) Acc

umul

ato

r Ta

nk(o

ptio

nal

)

To

Pla

in W

ater

V

alve

Filt

ere

d W

ate

r P

ress

ure

Gau

ge

Prim

ary

Ca

rbon

ato

r

Ca

rbon

ato

rTa

nk

Co

olin

g C

oil

Circ

ulat

or

Pum

p

Tow

er

Tow

er

Opt

iona

l Co

nsta

nt W

ate

r P

ress

ure

Boo

ster

Mo

dule

Boo

ste

r Ta

nk

Hig

h P

ress

ure

Sw

itch

HL

Hig

h P

ress

ure

G

auge

Low

P

ress

ure

Sw

itch

Con

stan

t Pre

ssur

e

Bo

oste

r P

ump

Pu

mp

Opt

iona

l Pre

ssur

e R

egu

lato

r (5

5 ps

i [3

.8 b

ar]

)Lo

w

Pre

ssu

re

Gau

ge

Fin

e F

ilte

rs

(opt

iona

l)C

oars

e F

ilter

(o

ptio

nal)

To O

ptio

nal

Wat

er C

oole

d C

ond

ense

r

Prim

ary

W

ate

r S

upp

ly

Bo

oste

r M

odu

le

Rep

lace

me

nt L

ine

— E

lect

ric S

ole

noi

d

— V

alve

— M

anua

l Bal

l Val

ve

— 3

-way

Bal

l Val

ve

— P

ress

ure

Rel

ief V

alve

— C

hec

k V

alv

e, B

all

— T

ype

— C

hec

k V

alv

e,

— V

ent t

o A

tmos

pher

e

Coo

ling

Coi

l

Le

ge

nd

Tow

erC

ool

ing

Coi

l


Pre-mix Plumbing — Six Valve Towers with Connection at Center Island

NOTE: Other plumbing configurations are possible. Check tower installation manual before making connections.

6 12345

6 12345

6 12345

6 5 4 3 2 1

6A

5A

4A

3A

2A

1W

Single Tower System

Syrup Cooling Coils

Syrup Filters(#2 through #11

optional)

Syrup Tanks

Drive-thru or Center Island Tower


6 12345

6 12345

6 12345

6 5 4 3 2 1

6A

5A

4A

3A

2A

1W

6 12345

6A

5A

4A

3A

2A

1W

Two Tower Systemwith Connection at Center Island

Self Serve or Center Island Tower Drive-thru Tower

Syrup Tanks

Syrup Cooling Coils


optional)


6 12345

6 12345

6 12345

6 5 4 3 2 1

6A

5A

4A

3A

2A

1W

6 12345

6A

5A

4A

3A

2A

1W

6 12345

6A

5A

4A

3A

2A

1W

Three Tower Systemwith Connection at Center Island

Self Serve Tower Drive-thru TowerOptional

Self Serve Tower

Syrup Tanks

Syrup Cooling Coils


optional)


Pre-mix Plumbing — Eight Valve Towers with Connection at Center Island

6 5 4 3 2 1

6A

5A

4A

3A

2A

1W

7

7A

8

8A

6 123458 7

6 123458 7

6 123458 7

Single Tower System

Syrup Cooling Coils


optional)

Syrup Tanks



6 5 4 3 2 178

6A

5A

4A

3A

2A

1W

7A

8A

6 123458 7

6 123458 7

6 123458 7

6A

5A

4A

3A

2A

1W

7A

8A

6 1234578

Two Tower Systemwith Connection at Center Island


Syrup Tanks

Syrup Cooling Coils


optional)


6 5 4 3 2 178

6A

5A

4A

3A

2A

1W

7A

8A

6 123458 7

6 123458 7

6 123458 7

6A

5A

4A

3A

2A

1W

7A

8A

6 1234578

6A

5A

4A

3A

2A

1W

7A

8A

6 1234578

Three Tower Systemwith Connection at Center Island


Self Serve or Center Island Tower

Syrup Tanks

Syrup Cooling Coils


optional)


Carbonated Water Plumbing — Six Valve Towers with Connection at Unit

Supplies Carbonated Water to Diet Drink and Provides Conduit Cooling for Products

6A

5A

4A

3A

2A

1W

W98

W98

Single Tower System with Connection at Unit

Pressurized Filtered

Water Supply


Primary Carbonator

Pump

Circulator Pump

Water Feeder

Carbonator Tank


6A

5A

4A

3A

2A

1W

W98

W98

6A

5A

4A

3A

2A

1W

W98

Two Tower System with Connection at Unit



Water Supply

Primary Carbonator

Pump

Circulator Pump

Water Feeder

Carbonator Tank


6A

5A

4A

3A

2A

1W

8

98

6A

5A

4A

3A

2A

1W

W9 8 89 9W

W

W

6A

5A

4A

3A

2A

1W

Three Tower System with Connection at Unit


Self Serve or Center Island

Tower (optional)


Water Supply

Primary Carbonator

Pump

Circulator Pump

Water Feeder

Carbonator Tank

Carbonated Water Circuit

Legend (Water)

Plain WaterCarbonated Water


Carbonated Water Plumbing — Eight Valve Towers with Connection at Unit

6A

5A

4A

3A

2A

1W

W98

W98

7A

8A

Single Tower System with Connection at Unit


Water Supply


Primary Carbonator

Pump

Circulator Pump

Water Feeder

Carbonator Tank


W98

W98

W98

6A

5A

4A

3A

2A

1W

7A

8A

6A

5A

4A

3A

2A

1W

7A

8A

Two Tower System with Connection at Unit



Water Supply

Primary Carbonator

Pump

Circulator Pump

Water Feeder

Carbonator Tank


9 9

6A

5A

4A

3A

2A

1W

7A

8A

8 9 8W

6A

5A

4A

3A

2A

1W

7A

8A

6A

5A

4A

3A

2A

1W

7A

8A

W 8 W

8 9 W

Three Tower System with Connection at Unit


Self Serve or Center Island

Tower (optional)


Water Supply

Primary Carbonator

Pump

Circulator Pump

Water Feeder

Carbonator Tank

Carbonated Water Circuit

Legend (Water)

Plain WaterCarbonated Water


PLUMBING CIRCUIT DIAGRAMS — MODEL 50M

Pressurized Water Circuit Diagram

Dis

pens

ing

Tow

er

Dis

pens

ing

Tow

er

Dis

pens

ing

Tow

er

Syr

up T

ray

Was

h

To D

anis

h S

team

erTo

File

t Bun

Ste

amer

Filt

ered

Wat

er

Pre

ssur

e G

auge

Low

Pre

ssur

e R

egul

ator

Car

bon

ator

P

ump

“A

”

Pum

p

Low

P

ress

ure

S

witc

hL C

arbo

nato

r P

ump

“B”

Pum

pP

um

p

Pum

p

Circ

ula

tor

Pu

mp

“A”

Circ

ula

tor

Pu

mp

“B”C

oolin

g C

oil

Ca

rbo

nato

r Ta

nk “

A”

Coo

ling

Coi

l

Coo

ling

Coi

lC

arbo

nato

r Ta

nk

“B”

Coo

ling

Coi

lTo

Pla

in

Wa

ter

Val

ve

Coo

ling

Coi

l

Op

tion

al C

onst

ant W

ater

P

ress

ure

Boo

ster

Mod

ule

Prim

ary

W

ate

r S

upp

ly

— E

lect

ric S

ole

noid

—

Va

lve

— M

anu

al B

all

Val

ve

— 3

-way

Ba

ll V

alve

— P

ress

ure

Rel

ief

— V

alv

e—

Che

ck V

alve

, —

Bal

l Typ

e—

Che

ck V

alve

, —

Ven

t to

Atm

osph

ere

Opt

iona

l Pre

ssu

re R

egul

ato

r S

et

at 5

5 ps

i (3.

8 b

ar)

Re

quire

d w

ith B

oos

ter

Mod

ule

To C

offe

e

Mac

hine

To I

ce

Mac

hin

e

Pho

spha

te

Fee

derAcc

um

ulat

or

Tank

Boo

ster

Ta

nk

Hig

h P

ress

ure

Sw

itch

H

Hig

h

Pre

ssu

re

Gau

ge

Con

stan

t Pre

ssur

e B

oost

er P

um

p

Low

P

ress

ure

Sw

itch

L

Low

Pre

ssur

e G

aug

eTo

Wa

ter C

oole

d

Co

nden

ser

By-

pass

(E

xpor

t on

ly)

Coa

rse

Filt

erB

oost

er M

odu

le

Rep

lace

men

t Li

neF

ine

Filt

ers

By-

pass

(E

xpor

t onl

y)

Pu

mp

Le

ge

nd


CO2 Gas and Compressed Air Circuit Diagram

Car

bon

ator

Ta

nk “

B”

Leg

end

— M

anu

al S

hut

-off

Val

ve

— C

heck

Val

ve, B

all

— M

anu

al 3

-way

Bal

l

— C

onne

ctio

n fo

r

Car

bona

tor

Tank

“A

”

Sug

ar F

ree

Line

& D

isco

nnec

t

Sug

ar

Bas

e Li

nes

& D

isco

nne

cts

Su

gar

Ba

se L

ine

s &

Dis

conn

ect

s

Op

tion

al

Air/

CO

2

Cha

nge-

ove

r V

alve

Opt

iona

l C

O2 C

han

ge-o

ver

Val

ve

AB

Opt

iona

l A

ir C

omp

ress

or

Opt

iona

l Bu

lkC

O2 T

ank

Set

at

90-

100

psi (

6.2

-6.9

bar

)

Op

tion

al

CO

2 T

ank

“A”

Opt

iona

l C

O2 T

ank

“B”

Pre

ssu

re S

witc

h“O

N”

= 7

0 ps

i (4.

8 b

ar)

“OF

F”

= 9

0 ps

i (6.

2 b

ar)

Sha

ke

Mac

hine

CO

2 S

hut-

off t

o C

arbo

nato

r Ta

nk

Med

ium

Pre

ssur

e R

egu

lato

r S

et a

t 60

psi

(4.

1 b

ar)

Low

Pre

ssur

e R

egul

ator

S

et a

t 15

psi

(1

bar

)

Sh

ake

Mac

hine

S

hut-

off V

alve

Opt

ion

al C

O2 R

egu

lato

rsS

et a

t 90

-100

psi

(6

.2-6

.9 b

ar)


Ice/Beverage Units Diagrams

SERVEND RECOMMENDED PLUMBING

S-250M Plumbing Diagram

Manifold: Change to carbonated or non-carbonated water.

1. Rotate plunger 180° using a 5/32" Allen wrench.

2. Pull plunger out to get non-carbonated water.

3. Push plunger in to get carbonated water.

4. Turn plunger back 180° to lock.

1 2 3 4 5 6 7 8

Left Flex Manifold

Right Flex Manifold


MII-250 Plumbing Diagram

Manifold: Change to carbonated or non-carbonated water.





Left Flex Manifold

Right Flex Manifold

No

t in

Use

No

t in

Use


MII-302 Plumbing Diagram

Manifold: Change to carbonated or non-carbonated water (S2-SII only).





For assistance call (812) 246-7000

Left Flex Manifold

Right Flex Manifold



Manitowoc Foodservice2100 Future Drive

Sellersburg, IN 47172, USAPh: 812-246-7000 Fax: 812-246-7024

Visit us online at: www.manitowocfsg.com

© 2010 ManitowocPart Number STH12 9/10

Documents

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