EZ Zone - UPGNET · EZ Zone Upgrade Overview ... computer front end software available when CommLink and a PC are used ... MiniLink Communications Interface

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GuideGuideGuideGuideGuide

036-21423-001 Rev. A (0602)

EZ Zone/Meridian

2 Upgrade

036-21423-001 Rev. A (0602)

Form: 036-21423-001 Rev. A (0602) Supersedes: NothingCopyright 2002 York International Corp..

Meridian is a registered trademarkof York International Corp.York International Corp. assumes no responsibility for errors, or omissions.

This document is subject to change without notice.All rights reserved.

EZ Zone/Meridian

Upgrade 3

036-21423-001 Rev. A (0602)

Table of Contents

Introduction ........................................................................................................................................ 4EZ Zone Upgrade Overview .............................................................................................................. 5Component Descriptions .................................................................................................................... 6Upgrade Package Selection ................................................................................................................ 7Example #1 - EZ Zone Stand Alone To Meridian Basic .......................................................... 8 & 9Example #2 - EZ Zone Stand Alone To Meridian Plus ........................................................ 10 & 11Example #3 - Networked EZ Zone To Meridian Plus .......................................................... 12 & 13Optional Controllers And Accessories ................................................................................... 14 & 15EZ Zone Wiring ................................................................................................................................ 16Meridian Basic Wiring ..................................................................................................................... 17Meridian Plus Wiring ....................................................................................................................... 18Meridian Plus Address Switches ..................................................................................................... 19HVAC Staging Connections ............................................................................................................. 20Sensor Connections .......................................................................................................................... 21Bypass Damper Connections ........................................................................................................... 22Honeywell Economizer Actuators ................................................................................................... 23System Manager Installation ........................................................................................................... 24CommLink II Installation ................................................................................................................ 25Modem Linc Central EPROM Replacement ................................................................................ 26Master Interface EPROM Replacement ........................................................................................ 27Zone Controller EPROM Replacement .......................................................................................... 28EPROM Installation Procedures ..................................................................................................... 29Ribbon Cable Installation ................................................................................................................ 30Upgrade Parts List Summary .......................................................................................................... 31

Table of Figures

Figure 1: Existing EZ Zone Master Controller Wiring ................................................................ 16Figure 2: New Meridian Basic Controller Wiring ......................................................................... 17Figure 3: Existing Meridian Plus Controller Wiring .................................................................... 18Figure 4: New Meridian Plus Address Switch Setting .................................................................. 19Figure 5: Existing EZ Zone HVAC Wiring .................................................................................... 20Figure 6: New Meridian HVAC Wiring .......................................................................................... 20Figure 7: Existing EZ Zone Master Controller Sensor Wiring .................................................... 21Figure 8: New Meridian Zone Manager Sensor Wiring ............................................................... 21Figure 9: Existing EZ Zone Bypass Damper Wiring .................................................................... 22Figure 10: New Meridian Bypass Damper Wiring ........................................................................ 22Figure 11: Honeywell Economizer Actuators Wiring Information.............................................. 23Figure 12: System Manager Wiring ................................................................................................ 24Figure 13: CommLink II Wiring ..................................................................................................... 25Figure 14: EZ Zone Modem Linc Central EPROM Location ...................................................... 26Figure 15: EZ Zone Master Interface Board EPROM Location ................................................. 27Figure 16: EZ Zone Zone Controller EPROM Location .............................................................. 28Figure 17: EPROM Removal & Installation .................................................................................. 29Figure 18: 3 Connector Ribbon Cable Installation ....................................................................... 30

EZ Zone/Meridian

4 Upgrade

036-21423-001 Rev. A (0602)

The York International Corporation’s EZ Zone ControlsSystem was first introduced in the early nineties. TheEZ Zone Controls System was designed for York, byWattMaster Controls, as a simple zone control systemfor York’s line of commercial unitary roof top and splitsystem HVAC units. Since its original design and in-troduction, the York EZ Zone Control System haschanged very little.

Introduction

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The Meridian Controls System was created from theoriginal EZ Zone Control System concept by redesign-ing, enhancing and expanding the original systems ca-pabilities under the new Meridian Controls Systemname.

York’s Meridian Control Systems have continued in theYork EZ Zone tradition of keeping the controls simpleto install and use while enhancing the system to make itmore applicable and in line with the needs of the cur-rent marketplace. In addition to offering an excellentcontrol system for zoning applications, the MeridianControl System has been expanded to allow control ofmultiple single zone constant volume units and otherdevices such as lighting, exhaust fans, and unit heaters.

Upgrading your EZ Zone system to the Meridian Con-trols system allows you and your customer to take ad-vantage of the many improvements that have been madein the Meridian Controls system without having to re-place all the EZ Zone system components that are in-stalled on your job.

This guide is intended to provide you with simpleinstructions on upgrading an existing EZ Zone systemto a Meridian Control System.

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EZ Zone/Meridian

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036-21423-001 Rev. A (0602)

The basic steps required to upgrade your EZZone system to a Meridian system are:

� Determine what EZ Zone componentsare currently installed on the system.

� Replace the existing EZ-Zone MasterController board with an MeridianZone Manager controller board

� Replace the existing EZ ZoneEPROM’s in each Zone Controllerwith a new Meridian EPROM.

� Install return air and outside airtemperature sensors

EZ Zone to Meridian upgrade allows you toretain:

� All existing wiring

� Master Controller enclosure withkeypad and display

� Existing supply air and static pressuresensors

� Existing bypass damper

� All Zone Dampers

� * All Zone Controllers

� Room sensors

� * Modem Linc Central

� * All Master Interface Boards

� All Fan Terminal Controllers

EZ Zone Upgrade Overview

After upgrading your system from EZ Zone toMeridian, you will be able to take advantageof many new enhancements including:

� Damper actuators can be programmedfor direct or reverse operation

� Full modulating economizer controlcapability including optional wetbulbeconomizer control

� Outside air temperature sensor provideslockout function for both heating andcooling. When converted to MeridianPlus system only one outside air sensoris required for the entire system

� Contact closure input for dirty filterstatus

� Global and individual zone overridemodes

� Zones can be set for voting ornonvoting status

� Room sensor slide can be programmed ± 0° F to ± 5° F adjustmentfrom setpoint

� Staging delays, minimum off times,and changeover intervals areprogrammable

� Sensor offset calibration to correctsensor errors due to poor location

� MeridianView enhanced graphicalcomputer front end software availablewhen CommLink and a PC are used

� System Manager operator interfaceallows all controllers to be accessed fromone central location

* These controllers can be retained but they will re-quire an EPROM chip upgrade to be compatiblewith the Meridian System.

EZ Zone/Meridian

6 Upgrade

036-21423-001 Rev. A (0602)

Component Descriptions

The general architecture of the EZ Zone and the Merid-ian Systems are very similar making the upgrade pro-cess relatively easy.

There are some changes in the component descriptionsbetween the EZ Zone system and the Meridian system.It is important to understand these differences beforeyou begin the upgrade process.

Many of these components look similar, however, insome cases they do not function in an identical fashion.Having the wrong component installed can cause im-proper system operation.

The chart below depicts the difference in descriptionsfor the various comparable system components in theEZ Zone and Meridian Systems.

Master Controller Zone Manager

Fan Terminal

Controller

Master Interface Board

MiniLink

Communications

Interface

Modem Linc Central CommLink II

Zone Controller Zone Controller

EZ

Z

one C

om

ponents

Merid

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ponents

Relay Expansion

Board

Must Be Replaced Improved Hardware & Software

Replacement Not Required

EPROM Replacement Required



Same As Existing Fan Terminal Controller

Improved Software

Improved Software

Improved Software

EZ Zone/Meridian

Upgrade 7

036-21423-001 Rev. A (0602)

Upgrade Package Selection

There are basically 3 possible EZ Zone to Meridianupgrade scenarios you may encounter. We have out-lined these below to assist you in deciding which op-tion is best for your application.

Please see the Meridian upgrade selection chart belowto help determine which example best fits your needs.

Upgrade A Simple EZ Zone Stand AloneSystem(s) To The Meridian Basic System

• Each Existing Master Controller Has It’s Own DisplayAnd Keypad And Is Treated As A Separate System

• No Communications Cable Between Existing MasterControllers

• No Central Display Or Computer Interface Is Desired

See Example #1On

Pages 8 & 9

See Example #2On

Pages 10 & 11

See Example #3On

Pages 12 & 13

Upgrade A Simple EZ Zone Stand AloneSystem(s) To The Meridian Plus System

• Two Or More Existing Master Controllers On The Job.

• No Communications Cable Between Existing MasterControllers

• The Customer Wants To Connect The MasterControllers So That They Are Part Of A NetworkedSystem And/Or Install Constant Volume UnitControllers Or Other Controller Boards On TheirSystem

Upgrade A Networked EZ Zone System ToThe Meridian Plus System

• Two Or More Existing Master Controllers That AreNetworked Together With A Modem Linc Central

• The Customer May Want To Add Constant VolumeUnit Controllers Or Other Controller Boards To TheirSystem

EZ Zone/Meridian

8 Upgrade

036-21423-001 Rev. A (0602)

Example #1:

Your project has a single EZ Zone Master Panel andit’s associated Zone Controllers. This is a typical EZZone system. The upgrade will essentially convert thisto a Meridian Basic System. Please see the requiredupgrade components to be ordered in the list below.

To upgrade your existing EZ Zone System to the Me-ridian Basic System the following procedure will berequired.

Warning: All removal and installation proceduresmust be done with the power to the controllersturned off. Failure to do so can cause severe dam-age to the controller boards.

1) All power and input/output wiring will need to bedisconnected from the board. Remove the enclosurecover and disconnect the keypad & display cable byunplugging the cable connector at the board connec-tion.

2) The new Return Air Sensor should be installed inthe return air stream in a location upstream of the pointthat the bypass duct connects to the return duct.

3) Install the new Outdoor Air Sensor in a location onthe exterior of the building that provides shade and pro-

tection from the weather. See the mounting instructionsincluded with the sensor for detailed mounting instruc-tions.

4) Remove the existing EZ Zone Master ControllerBoard from the EZ Zone enclosure. This will requirethe removal of 4 screws securing the board to the en-closure base.

5) Install the new Zone Manager board onto the exist-ing enclosure base. The new board installation requires6 plastic standoffs be inserted between the back of thenew board and the existing standoffs. Secure the boardto 4 of the threaded standoffs (one in each corner of theboard) with the mounting screws provided.

6) Connect the input, output and power wiring per theMeridian Basic wiring diagram (See Figure 2 on page17). Connect the keypad display connector of the exist-ing EZ Zone enclosure cover to the new Meridian ZoneManager board and secure the existing enclosure coverto the enclosure base with the existing screws.

7) Remove and replace each EPROM on all the exist-ing EZ-Zone Zone Controllers. See Figures 16 & 17 onpages 28 & 29 for detailed EPROM Replacement in-formation.

To Upgrade To The Meridian Basic System Order the Following:(1) (2ZZC004708124) EZ Zone to Meridian Basic Upgrade Kit

(Includes: Zone Manager Board w/ Mounting Screws, Plastic Standoff Kit for Zone Manager,Return Air Sensor, Upgrade Label, Installation Instructions.

(1) (2ZOT004704424) Outside Air Sensor(X) (2ZZC004708224) EPROM (Replaces EZ Zone, Zone Controller EPROM) (One Required Per

Controller)

Note: When ordering be sure to specify Fahrenheit or Celsius operation for your system

For optional components list and information see pages 14 & 15 of this manual.

EZ Zone/Meridian

Upgrade 9

036-21423-001 Rev. A (0602)

EZ Zone Stand Alone to Meridian Basic

Zone Air DampersUp to 16 Zone Air Dampers Allowed

SupplyAir TempSensor

To HVAC UnitControl Panel

MasterController

Bypass AirDamper

StaticPressureSensor

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Zone Air DampersUp to 16 Zone Air Dampers Allowed



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ReturnAir TempSensor

OutsideAir TempSensor

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Upgraded System

Existing System

EZ Zone/Meridian

10 Upgrade

036-21423-001 Rev. A (0602)

Example #2:

Your project has multiple EZ Zone Master Panels andtheir associated Zone Controllers. This upgrade willconvert this to a Meridian Plus System.

To upgrade your existing EZ Zone System to the Me-ridian Plus System the following procedures will berequired.


1) All power and input/output wiring will need to bedisconnected from the existing Master Controller board.Disconnect the keypad & display cable from the boardby unplugging its connector from the board and the dis-play on the existing enclosure cover.


3) Install the new Outdoor Air Sensor in a location onthe exterior of the building that provides shade andprotection from the weather. Only one OA sensor isrequired for the entire system. See the mounting instruc-tions included with the sensor for detailed mountinginstructions.

4) Connect the CommLink to the network communica-

tions loop and wire in 24VAC power (See Figure 13 onpage 25).

5) Remove the existing EZ Zone Master ControllerBoard from the EZ Zone enclosure. This will requirethe removal of 4 screws securing the board to the en-closure base.

6) Install the new Zone Manager board onto the exist-ing enclosure base. The MiniLink should then bemounted to the Zone Manager board using the stand-offs and screws included with the MiniLink. The newZone Manager board installation requires 6 plasticstandoffs be inserted between the back of the new boardand the existing standoffs. Secure the board to 4 of thethreaded standoffs (one in each corner of the board)with the screws that were included with the new ZoneManager board.

7) Connect the input, output and power wiring per theMeridian Plus wiring diagram (See Figure 3 on page18). Connect the new 3 Connector Ribbon Cable key-pad display connector to the existing EZ Zone enclo-sure cover and to the new Meridian Zone Manager board(See Figure 18 on page 30). Secure the existing enclo-sure cover to the enclosure base with the existingscrews.


To Upgrade To The Meridian Plus System Order the Following:(X) (2ZZC004708324) EZ Zone to Meridian Plus Upgrade Kit (One Required Per Existing Master

Controller) (Includes: Zone Manager Board w/ Mounting Screws, Plastic Standoff Kit for ZoneManager, MiniLink w/ Mounting Hardware, Return Air Sensor, 3 Way Display/Keypad Connectorcable, Upgrade Label, Installation Instructions).

(1) (2ZCP004703124) CommLink II Kit (Includes: Cables, Power Supply, Installation Instructions)(1) (2ZOT004704424) Outside Air Sensor (Only One Required For Entire System)(X) (2ZZC004708224) EPROM (Replaces EZ Zone, Zone Controller EPROM) (One Required Per

Controller)(1) (2ZSM004702924) System Manager (Not Required if Using Optional Computer)



EZ Zone/Meridian

Upgrade 11

036-21423-001 Rev. A (0602)

EZ Zone Stand Alone to Meridian Plus

Zone Air Dampers

Zone Air Dampers

Up to 16 Zone Air Dampers Allowed






MasterController

MasterController

Bypass AirDamper

Bypass AirDamper



#1

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Zone Air Dampers

Zone Air Dampers





To Other Zone Managers(Up to 30 Allowed On System)


Network Loop

Network Loop

Local Loop

Zone Manager

Zone Manager


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Only One OASensor IsRequiredFor EntireSystem

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SystemManager

(Optional If Computer Front End Used)

Other Controllers(Optional - Up to 13 On Each Loop))

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EZ Zone/Meridian

12 Upgrade

036-21423-001 Rev. A (0602)

Example #3:

Your project has a Networked EZ Zone System that youwant to convert to the Meridian Plus system. Please seethe required upgrade components list below for thenecessary parts to be ordered.

To upgrade your existing Networked EZ Zone Systemto the Meridian Plus System the following procedureswill be required.


1) All power and input/output wiring will need to bedisconnected from the existing Master Controller board.Disconnect the keypad & display cable from the boardby unplugging its connector from the board.


3) Install the new Outdoor Air Sensor in a location onthe exterior of the building that provides shade andprotection from the weather. Only one OA sensor isrequired for the entire system. See the mounting instruc-tions included with the sensor for detailed mountinginstructions.

4) Take the cover off of the Modem Link Central, re-move the old EPROM and replace with the newCommLink EPROM. See Figures 14 & 17 on pages 25

& 27 for detailed EPROM installation instructions.

5) Remove the existing EZ Zone Master ControllerBoard from the EZ Zone enclosure. This will requirethe removal of 4 screws securing the board to the en-closure base. Remove the existing Master InterfaceBoard from the old Master Controller board. Removethe old EPROM from the Master Interface board andinstall the new MiniLink upgrade EPROM to the Mas-ter Interface board. See Figures 15 & 17 on pages 26 &27 for detailed EPROM installation instructions.

6) Install the upgraded Master Interface board to thenew Zone Manager board using the existing mountinghardware. Install the new Zone Manager board onto theexisting enclosure base. The new Zone Manager boardinstallation requires 6 plastic standoffs be inserted be-tween the back of the new board and the existing stand-offs. Secure the board to 4 of the threaded standoffs(one in each corner of the board) with the screws thatwere included with the new Zone Manager board.

7) Connect the input, output and power wiring per theMeridian Plus wiring diagram (See Figure 3 on page18). Connect the existing 3 Connector Ribbon Cablekeypad display connector to the existing EZ Zone en-closure cover and to the new Meridian Zone Managerboard (See Figure 18 on page 30). Secure the existingenclosure cover to the enclosure base with the existingscrews.


To Upgrade To The Meridian Plus System Order the Following:(X) (2ZZC004708124) EZ Zone to Meridian Basic Upgrade Kit (One Required Per Existing Master

Controller) (Includes: Zone Manager Board w/ Mounting Screws, Plastic Standoff Kit for ZoneManager, Return Air Sensor, Upgrade Label, Installation Instructions)

(1) (2ZZC004708424) Modem Linc Central to CommLink II Upgrade Kit(Includes: ComLink EPROM Upgrade Chip, Upgrade Label)

(1) (2ZZC004708524) Master Interface Board to MiniLink Upgrade Kit(Includes: MiniLink EPROM Upgrade Chip, Upgrade Label)

(1) (2ZOT004704424) Outside Air Sensor (Only One Required Per System)(X) (2ZZC004708224) EPROM (Replaces EZ Zone, Zone Controller EPROM) (One Required Per

Controller)(1) (2ZSM004702924) System Manager (Not Required if Using Optional Computer)



EZ Zone/Meridian

Upgrade 13

036-21423-001 Rev. A (0602)

Networked EZ Zone To Meridian Plus

Zone Air Dampers

Zone Air Dampers





To Other Master Controllers(Up to 30 Allowed On System)


Network Loop

Network Loop

Local Loop


Bypass AirDamper

Bypass AirDamper



#1

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SE

COM

MUNIC

ATION

ALARM

A=

ALLZO

NES

B=

EACHZO

NE

C=

HVACUNIT

/CLEAR

D=

ALARMS

#=

STEP/ENTER

* =DECIM

AL

+

+

+

+

Meridian

COOL

MODE

04-08-96

03:48PMFRI

OCCUPIED

NOALARMS

2

8

5

0

A

C

B

D

1

7

4

*

3

9

6

#

YO

RK

FAN

COO

L1

COO

L2

HEAT1

HEAT2

BYPASSO

PEN

BYPASSCLO

SE

COM

MUNIC

ATION

ALARM

A=

ALLZO

NES

B=

EACHZO

NE

C=

HVACUNIT

/CLEAR

D=

ALARMS

#=

STEP/ENTER

* =DECIM

AL

+

+

+

+

Meridian

COOL

MODE

04-08-96

03:48PMFRI

OCCUPIED

NOALARMS

2

8

5

0

A

C

B

D

1

7

4

*

3

9

6

#

YO

RK

MasterController

MasterController

Zone Air Dampers

Zone Air Dampers





To OtherZone Managers(Up to 30 Allowed On System)


Network Loop

Network Loop

Local Loop


Bypass AirDamper

Bypass AirDamper



#1

#1

#16

#16

8

9

7

4

5

6

3

2

1

#

0*

Modem(Optional)

UpgradedModem Link Central

24VAC

24VAC

W

C

LI

ATTMASTER

ONTRO

S,NC

CO

MM

LINKII

CO

MM

LINK

II

L

C

M

M

O

O

O

O

M

D

P

PE

Computer(Optional)

Telephone Line

FAN

COO

L1

COO

L2

HEAT1

HEAT2

BYPASSO

PEN

BYPASSCLO

SE

COM

MUNIC

ATION

ALARM

A=

ALLZO

NES

B=

EACHZO

NE

C=

HVACUNIT

/CLEAR

D=

ALARMS

#=

STEP/ENTER

* =DECIM

AL

+

+

+

+

Meridian

COOL

MODE

04-08-96

03:48PMFRI

OCCUPIED

NOALARMS

2

8

5

0

A

C

B

D

1

7

4

*

3

9

6

#

YO

RK

FAN

COO

L1

COO

L2

HEAT1

HEAT2

BYPASSO

PEN

BYPASSCLO

SE

COM

MUNIC

ATION

ALARM

A=

ALLZO

NES

B=

EACHZO

NE

C=

HVACUNIT

/CLEAR

D=

ALARMS

#=

STEP/ENTER

* =DECIM

AL

+

+

+

+

Meridian

COOL

MODE

04-08-96

03:48PMFRI

OCCUPIED

NOALARMS

2

8

5

0

A

C

B

D

1

7

4

*

3

9

6

#

YO

RK

ZoneManager

ZoneManager




Only One OASensor IsRequiredFor EntireSystem

SystemManager

(Optional If Computer Front End Used)

Other Controllers(Optional - Up to 13 On Each Loop))

Clear Window

Area

6

5

4

DEC

7MIN

US

0

CLEAR9

8

1

3

2

MENU

Overr

ide

Com

munic

ation

ENTER

ESC

Ala

rmSystem

Manager

-

Merid

ianPlus

05/17/0

003:3

8PMW

ED

OCCUPIED

NOALARM

S


ning

®

Upgraded System

Existing System

EZ Zone/Meridian

14 Upgrade

036-21423-001 Rev. A (0602)

Optional Controllers and Accessories

In addition to the standard Zone Manager and ZoneControllers, York offers many other controllers and ac-cessories to enhance your new Meridian System. Op-tional Controllers that are available for use with theMeridian Plus system include the CV, CV-C, GPC, Op-timal Start Scheduler, Lighting Panel Controller andWetbulb Module. These controllers are not availablefor use with the Meridian Basic System. To utilize anyof the optional controllers you must upgrade your sys-tem to the Meridian Plus configuration. Accessories that

are available for use with either the Meridian Plus orBasic System include the CommLink II Communica-tions Interface, Remote Link, Room Sensors, RoundZone Dampers and Rectangular Zone Dampers. Yorkalso offers Communication Cable that is color codedand labeled for the network communications loop andlocal communications loop.

Following are brief descriptions of the optional con-trollers and accessories that are available.

CV Controller

The CV Controller provides control of single zone con-stant volume rooftop or split system HVAC equipment.CV controllers have four configurable relay outputs forheating/cooling staging, a 0-10VDC output for econo-mizer control, on board time clock for scheduling/nightsetback functions and built in alarming features.The CV Controller can be used with the Meridian Plus

System only. The CV can be programmed and moni-tored from the either the System Manager or from apersonal computer which has the MeridianView Com-puter front end software installed. Up to 13 CV con-trollers can be installed on each local communicationsloop of your Meridian Plus system.

CV-C Controller

The CV-C Controller is a field configurable constantvolume unit controller that provides additional featureswhich are not available with the standard CV control-ler. CV-C controllers can be configured for applicationsrequiring CO

2/IAQ economizer control, modulating HW

and CW control valves and dehumidification. The CV-C relay outputs can be expanded via a plug-in expan-sion board for use in applications requiring additionalheating/cooling staging control.

The CV-C Controller can be used with the MeridianPlus System only. The System Manager cannot be usedto program or monitor the CV-C controller. CV-C con-trollers require that a personal computer which has theMeridianView computer front end software installedbe used for all programming and monitoring. Up to 13CV-C controllers can be installed on each local com-munications loop of your Meridian Plus system.

GPC Controller

The GPC (General Purpose Controller) is a very versa-tile controller that can be used for a variety of controlapplications that are outside the function of our stan-dard HVAC unit controllers. Each GPC controller has(5) Universal Inputs that can accept contact closures,thermistor temperature sensors, or 4-20mA/2-10VDCsignals. The controller has (5) digital outputs for on/offcontrol and (1) 0-10VDC analog output to modulate avalve or damper. These inputs and outputs can be con-figured in a variety of ways using And/Or logic func-tions, time schedules, setpoints, etc. to perform manydifferent tasks.

The GPC can be used for many applications including,but not limited to:

• Control of Unit Heaters• Control of Boilers• Control of Exhaust Fans• Monitoring of Temperature• Monitoring of Humidity• Monitoring of Status Contacts

The GPC Controller can be used with the Meridian PlusSystem only. The System Manager cannot be used toprogram or monitor the GPC controller. GPC control-lers require that a personal computer which has theMeridianView computer front end software installedbe used for all programming and monitoring.

EZ Zone/Meridian

Upgrade 15

036-21423-001 Rev. A (0602)

Lighting Panel Controller

Adds building lighting control capability to the Merid-ian System. The Lighting Panel Controller provides upto (7) Independent time schedules and light levels forcontrol of up to (7) lighting circuits. The Lighting PanelController relay outputs can be set for on/off relay orpulsed relay control depending on the lighting systemcontrol contactor requirements. Pushbutton override isavailable for each lighting circuit by connecting a mo-mentary pushbutton to the Lighting Panel Controllerboard.

The Lighting Panel Controller can be used with theMeridian Plus System only. The System Manager can-not be used to program or monitor the Lighting PanelController. Light Panel Controllers require that a per-sonal computer which has the MeridianView computerfront end software installed be used for all program-ming and monitoring.

Optimal Start Scheduler

Provides expanded scheduling capabilities beyond thoseincorporated with the standard Meridian controllers. TheOptimal Start Scheduler provides for optimalStart/Stop and up to (7) independent schedules with 2Start/Stop events per day and (14) Start/Stop holidayevents per schedule.

The Optimal Start Scheduler can be used with the Me-ridian Plus System only. The System Manager cannotbe used to program or monitor the Optimal Start Sched-uler Controller. This controller requires that a personalcomputer which has the MeridianView computer frontend software installed be used for all programming andmonitoring.

Wetbulb Module

Provides wetbulb temperature monitoring for controlof all economizer equipped units on the Meridiansystem. The Wetbulb Module includes an Outside AirHumidity Sensor for measuring outside air relativehumidity and utilizes the installed Outdoor Air Sensoron the Meridian System to calculate the wetbulbtemperature. This temperature is used by the economizercontrol portion of the unit controller to provide accurate

economizer operation. The Wetbulb Module can be usedwith the Meridian Basic and Plus Zone Systems. TheWetbulb Module can be monitored and programmedfrom either the System Manager or from a personalcomputer which has the MeridianView computer frontend software installed.

Accessories

York offers a complete line of accessories for yourMeridian system. For part ordering information and acomplete list of accessories please see the MeridianProduct List Pricing manual and the Meridian

Replacement Parts List Pricing Catalogs. Following isa brief list of some of the accessories that are offeredfor the Meridian system.

• Remote Link - 14,400 baud modem forremote access to any Meridian system

• CommLink II - Required to connect theAuto Zone Basic system to a personalcomputer

• Round Air Dampers - Air damper with aZone Controller and actuator mounted in acontrol enclosure. Available in pressuredependent and pressure independent models.Available in round duct sizes of 6”, 8”, 10”,12”, 14” and 16” diameter.

• Rectangular Air Dampers - Rectangular,aluminum frame opposed blade dampers.Available in rectangular duct sizes from 8” x8” to 24” x 36” in 2” increments of height andwidth

• Rectangular Air Damper Kit - ZoneController and actuator mounted in a controlenclosure for use with Rectangular AirDampers

• MeridianView Computer SoftwareFree when ordered with an EZ Zone toMeridian upgrade

EZ Zone/Meridian

16 Upgrade

036-21423-001 Rev. A (0602)

EZ Zone Wiring

The wiring diagram below depicts a typical existingEZ Zone Master Controller wiring. This diagram isshown for reference only. It’s intent is to show the dif-ference between the EZ Zone system wiring and the

Meridian system wiring. All wiring should be connectedper the specific Meridian system wiring diagrams onthe following pages.

StaticPick-up


Supply AirTemp Sensor

Splice AsRequired

LO HI

HV

AC

Un

it

24VAC Only

R

G

Y1

Y2

W1

W2

LineVoltage

GND

24VAC

Actuator WiringInterface

Feedback (BK)

Close (GR)

Open (YL)

Gnd (WH)

Bypass Air DamperActuator

Re

d

Blk

Grn

RS-485Communication cableto Zone Controllers

Master Controller Board

75

90

60

45

Figure 1: Existing EZ Zone Master Controller Wiring

EZ Zone/Meridian

Upgrade 17

036-21423-001 Rev. A (0602)

Meridian Basic Wiring

Figure 2: New Meridian Basic Controller Wiring

Figure 2 below depicts the wiring schematic that shouldbe used for the Meridian Basic System upgrade as de-scribed in Example 1 on pages 8 and 9 of this manual.

Be sure to pay strict attention to all warnings and cau-tions listed on the schematic.

Warning:See Figure 11 in this manual forimportant wiring instructionsregarding HoneywellEconomizer Actuators

Zone Manager

Feedback (BK)

Close (GR)

Open (YL)

Gnd (WH)

Notes:

1.)24 VAC Must Be Connected SoThat All Ground Wires RemainCommon.

3.)All Communication Wiring To Be 18Ga. Minimum, 2 Conductor TwistedPair With Shield. Belden #82760 OrEquivalent.

4.)For Individual Component Wiring SeeSpecific Component Wiring Diagram.

5.)It Is Recommended That AllControllers Address Switches AreSet Before Installation.

2.)All Wiring To Be In Accordance WithLocal And National Electrical Codesand Specifications.

RS-485Communications To Zone

Controllers

Return Air Temp.Sensor

Supply Air Temp.Sensor

LineVoltage

HV

AC

Un

it

24VAC Only

Re

d

Blk

To Relief / Exhaust Fans

Grn

StaticPick-up


Splice AsRequired

LO HI

GND

24VAC

Belimo Actuator Wiring Shown.Consult Factory For Other

Models Of Economizer Actuators.Some Actuators Require IsolationTransformers In Order To PreventDamage To The Controller Board.

WARNING!

Use Extreme Care When WiringEconomizer Actuators

Never Connect Or DisconnectWiring With Power Applied!

Never Apply Power If TheGnd ( 1 Com ) Terminal On The

Actuator Is Not Connected.

See Note 1 &2

Outdoor Air Temp.Sensor

Aux3Forced

OccupiedMode

Aux1Economizer

Disable

Aux2FilterAlarm

Auxiliary Inputs( Dry Contacts )

R

G

Y1

Y2

W1

W2

Economizer Actuator

133 IN-LB

AF24-SR

1 COM

2 +

3 Y1

4 Y2

5 UBELIMO



C987

CABLE

R6

R5

HEAT 2 SW

1

W2

W1

Y2

HEAT2

HEAT1

COOL2

COOL1

FAN

HEAT 1

COOL 2

COOL 1

C 1992

1

1632

BNET

248

AD

D

COMM DRIVER

RS-485

75176

MADE IN U.S.A.

D1

7

D1

8

D1

9

D2

0

D2

1

D2

2

D2

3

D2

4

0* # D

R

SH

T

COMM

C1C2

+

P1

RIBBON

GN

D

06/11/95 03:48PM FRIAuto-Zone COOL MODE

G

Y1V6

V5

CLOSE

V4

V3

OPEN

GND

FDBK

FAN

CLOSE

OPEN

+

REC

+

GND

NE5090

4 5 6

KEYPAD

1 2 3

B

A

NO ALARM(S)OCCUPIED

LCD DISPLAY

&

++

24VAC

TB2

POWER

+

++

ADJUST

5.11V

PJ1

++PRESSU

RE

SEN

SO

RJA

CK

+5

V

SIG

BUSS

EXP

TB2

A2

G

OUTPUTS

ANALOG

A1

N.O.

CONTACTS

EXHAUST

AUX3

GND

GND

AUX2

AUX1

ANALOG

SAT

OAT

RAT

INPUTS

+12V

TB1

2

BYPASS

BYPASS

Local Loop

Address Switch Must Always Be SetTo Address 0 on Zone Manager Board

As Shown

Zone ManagerAddress Switch

These Switches Must BeIn The OFF PositionAs Shown

ADD

12

481632B

NET

AD

D

32BNE

T

16 8 4 12

OF

F>

OF

F>

RockerDown

RockerDown

75

90

60

45

EZ Zone/Meridian

18 Upgrade

036-21423-001 Rev. A (0602)

Zone Manager

Notes:


3.)All Communication Wiring To Be 18Ga. Minimum, 2 Conductor TwistedPair With Shield. Belden #82760 OrEquivalent.

5.)For Individual Component Wiring SeeSpecific Component Wiring Diagram.

2.)All Wiring To Be In Accordance WithLocal And National Electrical Codesand Specifications.

RS-485Communications To ZoneControllers, CV ControllersAnd/Or System Manager



LineVoltage

HV

AC

Unit

24VAC Only

Red

Blk

To Relief / Exhaust Fans

Grn

StaticPick-up


Splice AsRequired

LO HI

GND

24VAC

Belimo Actuator Wiring ShownConsult Factory For Other

Models Of Economizer ActuatorsSome Actuators Require IsolationTransformers In Order To PreventDamage To The Controller Board.

WARNING!

Use Extreme Care When WiringEconomizer Actuators

Never Connect Or DisconnectWiring With Power Applied!

Never Apply Power If TheGnd ( 1 Com ) Terminal On The

Actuator Is Not Connected.

See Note 1 &2

+

+

++

+

++

+ +

HEAT2

HEAT1

COOL2

COOL1

FAN

R

2

8C

SW

1

16AB 24

AD

D

LOCALLOOP

Local Loop

T

SH

RTB3

COMM

T

SH

R

32

16

8

4

1

2

MINILINK

R9

R10

R8

I CEXP

PORT

PWR

V4

V3

CLOSE

OPEN

FDBK

REC

GND

GND

24VAC

AUX1

OPEN

K1

NETWORKLOOP

Network Loop RS-48519200 Baud

To Other ZoneManagers and/or

CommLink onSystem

SH

R

T

CLOSEK

2

NE5090

ANALOGOUTPUTS

A2

G

TB2

A1

N.O.

EXHAUSTCONTACTS

GND

GND

AUX3

AUX2

7824

D2

5

U1

4

VR

3

R4

0

ADJUST5.11V

C2

7

7812 C2

6V

R2

D1

D3

D4

D2

PJ1

PR

ES

SU

RE

SE

NS

OR

JA

CK

+5

V

R7

OAT

RAT

+12V

SAT

ANALOGINPUTS

GN

D

SIG

T

R

SHIELD

T

R

SHIELD


(See Note 4)

Aux3Forced

OccupiedMode

Aux1Economizer

Disable

Aux2FilterAlarm

Auxiliary Inputs( Dry Contacts )

R

G

Y1

Y2

W1

W2

Economizer Actuator

133 IN-LB

AF24-SR

1 COM

2 +

3 Y1

4 Y2

5 UBELIMO



4.)Only One Outside Air Sensor IsRequired Per System. It May BeConnected To Any CV Controller OrZone Manager On The System. If AWetbulb Module Controller Is Used TheOA Sensor Must Be Connected To TheWetbulb Module.

75

90

60

45

Meridian Plus Wiring

Figure 3: New Meridian Plus Controller Wiring

Figure 3 below depicts the wiring schematic that shouldbe used for the Meridian Plus System upgrade as de-scribed in Example 2 on pages 10 and 11 of this manual.This schematic is also used for wiring of Example 3 on

pages 12 & 13 of this manual. Be sure to pay strict at-tention to all warnings and cautions listed on the sche-matic.

Warning:See Figure 11 in this manual forimportant wiring instructionsregarding Honeywell economizeractuators

EZ Zone/Meridian

Upgrade 19

036-21423-001 Rev. A (0602)

1632

8421

Caution!The MiniLinks Must Have Address Switches Set Between 1And 30 (Up To 30 MiniLinks (Mounted on Zone Managers)Are Allowed Per Auto-Zone Plus System). The MiniLinksShould Be Addressed In Consecutive Order Starting WithAddress #1. Address #1 Must Be Present On The Loop ForThe System To Function.

Address Switch Shown IsSet For Address 1

Address Switch Must Always Be SetTo Address 17 on Zone Manager Board

As Shown

Address Switch Shown IsSet For Address 4

Zone ManagerAddress Switch

MiniLinkAddress Switch



Caution:The Power To The Zone Manager Must BeRemoved And Reconnected After Changing TheMiniLink Or Zone Manager Address Switch SettingsIn Order For Any Changes To Take Effect.

Caution:Disconnect All Communication Loop Wiring FromThe Zone Manger Before Removing Power.Reconnect Power And Then ReconnectCommunication Loop Wiring To Zone Manager.

ADD

ADD

ADD

12

481632B

NET

ADD

All Zone Managers On System Must BeAddressed As 17

Network Switch As ShownMust Be ON

The Address For Each MiniLinkMust Be Unique To The Other MiniLinksOn The Network Loop. Loop #1 MiniLink

Should Be Addressed As #1Loop #2 MiniLink Should Be Addressed

As #2 Etc..

ADD

AD

D

AD

D

32

32

32B

BN

ET

NE

T

16

1616

8

88

4

4

4

1

1

1

2

2

2

OFF >

OF

F>

OF

F>

Ro

cke

rD

ow

n

RockerDown

RockerDown

HEAT2

HEAT1

COOL2

COOL1

FAN

R

LOCALLOOPT

SH

RTB3

COMM

T

SH

R

MINILINKV4

V3

CLOSE

OPEN

FDBK

GND

OPEN

K1

NETWORKLOOP

SH

R

T

CLOSE

K2

ANALOGOUTPUTS

A2

G

TB2

A1

Zone Manager Board(Under MiniLink Board)

MiniLink Address Switch Setting

Zone Manager Address Switch Setting

MiniLink Board(Mounted On Top Of Zone Manager Board)

Meridian Plus Address Switches

Figure 4: New Meridian Plus Address Switch Setting

The Meridian Plus Zone Manager has two differentaddress switches. One is located on the main ZoneManager board and one is located on the MiniLink boardthat is located on the top of the Zone Manager board.The Zone Manager board address should always be setto address 17 on the Meridian Plus system. The

MiniLink board should be addressed with a unique num-ber for each Zone Manager on the system. It is recom-mended that you start with address 1 and address eachZone Manager consecutively. See Figure 4 below fordetailed information.

EZ Zone/Meridian

20 Upgrade

036-21423-001 Rev. A (0602)

HVAC Staging Connections

Figure 6: New Meridian HVAC Wiring

Figure5 below shows the EZ Zone Master Controllerwiring. Figure 6 below depicts the wiring schematicthat should be used for wiring of all Meridian ZoneManagers boards. As can be seen below, the Meridian

OUT1

OUT2

OUT3

OUT4

OUT5

FAN

COOL1

COOL2

HEAT1

HEAT2

24 VAC - R

Fan - G

Cool - Y1

Cool - Y2

Heat - W1

Heat - W2

HEAT2

HEAT1

COOL2

COOL1

FAN

R

Fan - GCool - Y1Cool - Y2Heat - W1Heat - W2

24 VAC -R

Figure 5: Existing EZ Zone HVAC Wiring

The EZ Zone Master Con-troller relay outputs consistof a series of five double poleterminal blocks. Wire jump-ers between terminal blocksare required to the commonof each relay.

The Meridian Zone Managerwiring has been simplified.There is only one terminalblock with connectionsclearly marked for ease of in-stallation. Jumpers are nolonger required since thecommons are tied togetherwithin the circuit board.

Zone Manager wiring is much simpler than the EZ ZoneMaster Controller wiring. Be sure to pay strict atten-tion to all warnings and cautions listed on the sche-matic.

EZ Zone/Meridian

Upgrade 21

036-21423-001 Rev. A (0602)

Sensor Connections

Figure 8: New Meridian Zone Manager Sensor Wiring

ANALOGINPUTS

+V

+V12345678GG

PRESSURESENSOR

+5V

SIG

GN

D

TB12

StaticPick-up


Splice AsRequired

LO HI

Red

Blk

Grn

Supply AirSensor

To BypassActuator Feedback

++

+ +

R9

R10

C4

R8

AUX1

ANALOGOUTPUTS

A2

G

TB5

TB4

TB3

A1

N.O.CONTACTS

EXHAUST

GND

GND

AUX3

AUX2

D3

D4

D5

D6

D8

D2

PR

ES

SU

RE

SE

NS

OR

JA

CK

+5V

R7 INPUTS

OAT

RAT

+12V

SAT

ANALOG

GN

D

SIG

TB

1

PJ1




StaticPick-up


Splice AsRequired

LO HI

Figure 7: Existing EZ Zone Master Controller Sensor Wiring

The EZ Zone Master Controller sensor connec-tions are located on the right side of the board.Only a supply air temperature sensor and thebypass actuator feedback are connected here.

The Meridian Zone Manager includes terminalsfor connecting the following sensors:

• Supply Air Temperature• Return Air Temperature• Outside Air Temperature

The terminals are marked SAT, RAT, and OATfor ease of wiring. Auxiliary input terminalsAUX1, AUX2 and AUX3 are used for Econo-mizer Disable, Dirty Filter Alarm and ForcedOccupied Mode. Bypass damper feedback hasbeen relocated (see next page).

EZ Zone/Meridian

22 Upgrade

036-21423-001 Rev. A (0602)

Figure 10: New Meridian Bypass Damper Wiring

ANALOGINPUTS

+V

+V12345678GG

PRESSURESENSOR

+5V

SIG

GN

D

TB12

OUT6

OUT7

BYPASS

OPEN

BYPASSCLOSE

FeedbackGnd

OpenClose


24 VAC

V4

V3

REC

CLOSE

OPENK1

K2

NE

TW

OR

K

SH

R

T

NE5090

FDBK

GND

OPEN

CLOSE

Feedback (Bk)Ground (Wh)

Open (Yl)

Close (Gr)

Actuator InterfaceWiring

Figure 9: Existing EZ Zone Bypass Damper Wiring

The EZ Zone Master Con-troller has two double poleterminal blocks for the by-pass actuator connections.These terminal blocks mustbe tied together by an exter-nal jumper. In addition, thefeedback connection from theactuator must be terminatedon the other side of the con-troller .

The Meridian Zone Managerwiring has been simplified.There is only one terminalblock with connectionsclearly marked for ease ofinstallation. The actuator“feedback” connection isnow terminated at the samelocation as all the connec-tions. Jumpers are no longerrequired since the commonsare tied together within thecircuit board.

Bypass Damper Connections

EZ Zone/Meridian

Upgrade 23

036-21423-001 Rev. A (0602)

Honeywell Economizer Actuators

TR

T1

P

P1

24VAC24VAC

Zone Manager

Wiring 2ZAI004700266 Actuator Interface Module Kit To Zone Manager (Basic & Plus Systems)

Installing Interface Module To Honeywell M7415 Or 7405 Actuator

Q769C1007 Interface Module

Warning:

!

An Isolation TransformerMust Be Used For Connection ToActuator Or Serious Damage WillResult

+

TR1

T

-

A1

G

TB2

A2

G

OUTPUTSANALOG

A1

N.O.CONTACTS

EXHAUST

AUX3

GND

GND

AUX2

AUX1

ANALOG

SAT

OAT

RAT

INPUTS+12V

Honeywell Series M7415Or M7405 Actuator

24VA

C

24VA

C

T1 T1

TR TR

T T

P

P1

TR1

TR1

SEN

SO

R

SEN

SO

R

MINPO

SN

M7415A1014

025-26250

M7415A1014

025-26250

24 VAC - Isolation Transformer

Honeywell M7415 ActuatorWithout Interface Module

Honeywell M7415Actuator With Q769C1007Interface Module Installed

Place Interface Module OnTerminals P1 and P

Figure 11: Honeywell Economizer Actuators Wiring Information

When the HVAC units that are being upgraded tothe Meridian system are equipped with either theHoneywell M7415 or M7405 economizer actua-tors, an interface module and a isolation transformerare required in order to connect and use the econo-mizer outputs on the Meridian system. The inter-face module converts the Honeywell actuator from0-5VDC operation to 0-10VDC operation. An iso-lation transformer is also required for this installa-tion to prevent voltage feedback to the control sys-tem. The 2ZAI004700266 Actuator Interface Mod-

ule kit is available from York. This kit includes boththe Interface Module and a 24VAC Isolation Trans-former.

Warning: Both the interface module and a 24VACisolation transformer must be installed as shownbelow when connecting to the Honeywell M7415or M7405 actuator. Failure to install these com-ponents as shown can result in serious damage tothe Meridian controller board.

EZ Zone/Meridian

24 Upgrade

036-21423-001 Rev. A (0602)

The Ideal Recommended Location For The System Manager Is As TheFirst Device On The Local Loop, (Connect To MiniLink Local Loop Terminals)Although The System Manager May Be Connected To Any Local Loop AtAny Point On The Local Loop.The System Manager Will Not Operate Correctly If Attached To The Network Loop.

DO NOT CONNECT TO THE NETWORK LOOP.

Notes:


2.)All Wiring To Be In AccordanceWith Local And National ElectricalCodes And Specifications.

3.) All Communication Wiring To Be2 Conductor Twisted Pair WithShield. Use Belden #82760 OrEquivalent.

System Manager

654

DEC

7

MINUS0 CLEAR

98

1 32 MENU

Override

Communication

ENTER

ESC

Alarm

To MiniLink, Or Next DeviceOn Local Loop

Line Voltage

See Note 1

See Note 324VAC

GND

Required VA For TransformerSystem Manager = 25VA Max.

MADE IN

THE USA

EP

RO

M

1000uF10v

YS101806 REV. 1

DSPY1

UNIVERSAL SMART DISP. UNIT

SYSTEM MANAGER

SERIAL # :

U13 SERIAL #1000uF10v

C9

470uF50v

D2

PC

B8

0C

55

2-5

-16

WP

44

28

60

=2

/5

DfD

97

22

V7

Y

PH

ILIP

S

CX

13

LD8

CX

9

Az_Sysm

vx.xx 1234

V62C518256L-70P

U9

U8

LD7

RN

1

LD6

U7

CX7

74

HC

57

3

LD5

LD4

74HC573

CX

8

RN2

X2

CX

4

470uF50v

TB

2

GN

D

24

VA

C

R1

0 75176

RS-485

COMM

U12

CX

12

RA

M

SC1

T

TB

1

SH

LD

C7

C11

L1

C4

R

D6

85

83

U6

CX6C3

D3

24

C1

28

U5

R7

VAR1

D4

PJ1

R3

U1

74HC259

LD3

LD2

LD1

R2

R1

EW

DO

G

PH

ILIP

S

U3

U2

CX

1

82B715CX5

CX

3

U3

DSPY1

R5

D1

R6

MC

34

06

4A

C6

R11

99

36 C

8

R9

U10

U11

R8

R12

C5

74

HC

92

3

CX10

P1

R4

RV1

C2

C1

X1

Figure 12: System Manager Wiring

System Manager Installation

EZ Zone/Meridian

Upgrade 25

036-21423-001 Rev. A (0602)

Commlink II Communications Interface

(Jumper Set For Multiple Loop)

Caution: Use The “Molded Cable” ToConnect To The Computer (DCE) Connector.This Cable Is Only To Be Used To ConnectFrom The CommLink (DTE) Connection ToThe Modem (When Used).

Do Not

Caution:Disconnect All Communication Loop WiringFrom The CommLink Before Removing PowerFrom The CommLink. Reconnect Power And ThenReconnect Communication Loop Wiring.

Use 25 Pin Or 9 Pin Connector AsRequired By Available Serial (COM) PortOn Computer.

Caution: Use The “25 Pin Or 9 Pin Cable” ToConnect To The Modem (DTE) Connector.. ThisCable Is Only To Be Used To Connect From TheCommLink (DCE) Connection To The Computer

Serial Port (COM) Connection.

Do Not

(When Used) Note:Place Jumper BetweenPins 1 & 2 for MultipleLoop Applications &Between Pins 2 & 3 forSingle Loop Applications

COMM DRIVER CHIP( U1 )PIN 1

MULTI

SINGLE

12

3

CommLink Jumper Switch Settings

Notes:

R

SH

T

R

SH

T

R

SH

T

R

SH

T

All Communication LoopWiring Is Straight Through

Connect To First ZoneManager On Network Loop

Network LoopRS-485

19200 Baud(See Note 3).

Line Voltage

See Note 1

24VAC

Required VA For TransformerCommLink = 14VA Max.

CommLink Is Supplied With 110/24VAC Power Supply.If Desired A Transformer (By Others)

May Be Wired To The CommLink Instead

Molded Modem Cable.Part #HZ000098

Supplied With CommLink

(DTE)MODEM

485 LOOP485 LOOP

COMPUTER(DCE)

GT R

G2

V4

DN

POWER

4 Piece ComputerCable Kit.Part # HZ000112Supplied WithCommLink

Connect To Modem .Modem Is Part # OE419-02

Only

9P

inF

em

ale

9 PinFemale

25 PinFemale

9P

inF

em

ale

120/24 VacTransformer

Part # PX000015

25 PinMale

Part #CLMA19A1

Connect Supplied RJ12 Modular Phone CableTo Supplied 9 Pin Or 25 Pin Connector As ReqdBy Your Computer Com Port Connection


2.)All Wiring To Be In AccordanceWith Local And National ElectricalCodes And Specifications.

3.)All Communication Wiring To Be2 Conductor Twisted Pair WithShield. Use Belden #82760 OrEquivalent.

Figure 13: CommLink II Wiring

CommLink II Installation

Note:For Meridian Basic System (See Example 1 page 8 &9) jumper must be set for single loop operation asshown above.For Meridian Plus System (See Example 2 page 10 &11) jumper must be set for multiple loop operation asshown above.

EZ Zone/Meridian

26 Upgrade

036-21423-001 Rev. A (0602)

EPROM LocationSee Figure 17 ForRemoval AndInstallation Instructions

Figure 14: EZ Zone Modem Linc Central EPROM Location

Modem Linc Central EPROM Replacement

The EZ Zone Modem Linc Cen-tral EPROM chip must be re-placed with the MeridianCommLink upgrade EPROMchip, part #2ZZC004708224.This EPROM chip is factoryprogrammed with the new Me-ridian to EZ Zone software. Thischip must be replaced or theModem Linc Central will notfunction with the Meridian sys-tem.

CAUTION:Power must be removed from theModem Linc Central during re-moval of the old EPROM chipand installation of the newEPROM chip. It is also impera-tive that the old EPROM chip isremoved gently to avoid damageto the circuit board. Installationof the new EPROM chip mustalso be done with care to preventdamage to the pins on the newchip. See Figure 17 for detailedchip removal and installation in-formation.

Notch

EZ Zone/Meridian

Upgrade 27

036-21423-001 Rev. A (0602)

LO

OP

NE

TW

OR

K

T

SH

R

24VAC

GND

T

SH

R

32

16

8

4

1

2

1

2

3

4

7

5

6

8

OFF>

Ro

cke

rD

ow

n


Figure 15: EZ Zone Master Interface Board EPROM Location

The EZ Zone Master InterfaceBoard EPROM chip must be re-placed with the MeridianMiniLink upgrade EPROM chippart # 2ZZC004708424. ThisEPROM chip is factory pro-grammed with the new Merid-ian to EZ Zone software. Thischip must be replaced or theMaster Interface Board will notfunction with the Meridian sys-tem.

CAUTION:Power must be removed from theMaster Interface Board duringremoval of the old EPROM chipand installation of the newEPROM chip. It is also impera-tive that the old EPROM chip isremoved gently to avoid damageto the circuit board. Installationof the new EPROM chip mustalso be done with care to preventdamage to the pins on the newchip. See Figure 17 for detailedchip removal and installation in-formation.

Master Interface EPROM Replacement

Notch

EZ Zone/Meridian

28 Upgrade

036-21423-001 Rev. A (0602)

Figure 16: EZ Zone Zone Controller EPROM Location

Zone Controller EPROM Replacement

CX

6

SW

1

U10

75176

EX

PA

NS

ION

Q3

Q2

D3

VR

17824

GND

24VAC

M

7824CT

MC34064A

9936

R17

R16

U7

C7

R15

PO

WE

RR

21

RE

V.2

YS

101

562

MDL

F1

250D4

R26

LD3

L1

SCAN REC

R12

C6

R11

TOKEN

NET

LD

2

32

R14

R13

R100

LD

1

C5

D1

K1

V2

24VDCCONTACT:UL / CSA 5A250VAC

K2

D2

AC

TU

AT

OR

24VDCCONTACT:UL / CSA 5A250VAC

R10

R9

PJ2

V1

C4

74H

C573N

B31920P

S

TC

U3

2K

2V

9936

MS

6264L-7

0P

C

EPROM

VR

EF

AD

J

R23

C10

PC

B8

0C

55

2-5

-16

WP

50

06

50

=1

/3D

FD

99

40

SM

PH

ILIP

S

EW

DO

G

CO

MM

D7

CX10

R25

R2

8

T'STAT U

11

C15

R2

0

C11

R24

8

16

2

4

ADDRESS ADD

1 U6

93C

46

U5

R1

9

PH

ILIP

S

U9CX9

R32

D5

C14

P.U.

R22

C13

LM

C6

62

R2

7

D5

RAM

C9

C8

80C552

CX

5P

J1

C3

R8

R7

R5

R6

R4

C2

C1

X1 74H

C259

B31920P

S

U2

R1

R2

R3

CX2

Q1

16L8

32K

R34FLOW

U8RN1

CX8 U4

R18 CX4

8KRAM

U3

CX3

U1

CX1

The EZ Zone Zone ControllerEPROM chip must be replacedwith the Meridian ZoneContoller upgrade EPROM chippart # 2ZZC004708224. ThisEPROM chip is factory pro-grammed with the new Merid-ian to EZ Zone software. Thischip must be replaced or thezone controller will not functionwith the Meridian system.

CAUTION:Power must be removed from theZone Controller board during re-moval of the old EPROM chipand installation of the newEPROM chip. It is also impera-tive that the old EPROM chip isremoved gently to avoid damageto the circuit board. Installationof the new EPROM chip mustalso be done with care to preventdamage to the pins on the newchip. See the next page for de-tailed chip removal and instal-lation information.


Notch

EZ Zone/Meridian

Upgrade 29

036-21423-001 Rev. A (0602)

EPROM Installation Procedures

Small FlatheadScrewdriver

Chip

Chip

Printed CircuitBoard



Chip

WARNING!

Direction Of Pull

Notch

Dot

Pin1

Be sure the chip you have selected to replace is asocketed chip. Not all driver chips on the boardsare field replaceable. Only socketed chips may beremoved and replaced in the field. All other chipsthat are not socketed will require sending the boardto the York factory for repair.

Once you have determined that thechip needing replacement is indeed a socketed chipplease proceed in the following manner.

Remove the communications loop connector andthen the 24VAC power connector on the controllerbefore attempting to change any components.

will occur if components are removed orinstalled with power applied.

If you are unsure how to safely remove the chip orabout the correct pin placement, please consult thefactory before proceeding.

Use extreme care to avoid inserting the screwdriveror I.C. Puller under the socket. You must insert the tipof the screwdriver or ends of the I.C. Puller betweenthe body of the chip and the chip socket.

Each chip be installed with Pin 1 in the correctlocation. Installing the chip “backwards” will in mostcases destroy the device when power is reapplied.

Pin 1 can be located by looking for the notch in the endof the chip. Pin 1 on "some" chips is identified with a dot.

Be certain that pins are lined up in the socketbefore pressing the chip in. Failure to properly lineup the pins will result in damage to the chip.This is a common error -

Only after confirming that the chip has been correctlyinstalled with Pin 1 in the proper position and that thepins are lined up and none are bent or out of the socket,should communication or power wiring be reconnectedto the board. Tp prevent possible damage alwaysreconnect the power wiring first and then thecommunication wiring.

If you try toremove a chip that is not socketed it will destroythe circuit board.

DAMAGE

Damage to the board caused by failure to correctlyremove or install the chip is not covered by theWattMaster warranty.

MUST

ALL

VERY BE CAREFUL.

Using I.C. Puller To Remove Socketed Chip

Using Screwdriver To Remove Socketed Chip

End View Of Socketed Chip AssemblyTop View Of Socketed Chip Assembly

I.C. Puller

Chip Socket

Chip Socket

Chip Socket

Gently Rock Chip Side To Side And ThenLift Straight Up To Remove Chip FromChip Socket.

Gently Lift The Chip On One End And Rock ChipBack And Forth With Screwdriver As Shown.Repeat This Process On The Other End Of Chip.Alternate This Process On Both Ends Of Chip UntilThe Chip Is Free From The Chip Socket.

Pin 1

Dot

Socket

PrintedCircuitBoard

Typical RS-485 CommunicationsDriver Chip Detail

Figure 17: EPROM Removal And Installation

EZ Zone/Meridian

30 Upgrade

036-21423-001 Rev. A (0602)

Minilink Board

Zone Manager Board

Keypad And DisplayCircuit Board

3- Connector Ribbon CableTo KeyPad & Display BoardSee Connection Detail Below

Cable Connection Detail

+

+

++

+

++

+ +

HEAT2

HEAT1

COOL2

COOL1

FAN

R

2

8C

SW

1

16AB 24

AD

D

LOCALLOOPT

SH

RTB3

COMM

T

SH

R

32

16

8

4

1

2

MINILINK

R9

R10

R8

I CEXP

PORT

PWR

V4

V3

CLOSE

OPEN

FDBK

REC

GND

GND

24VAC

AUX1

OPEN

K1

NETWORKLOOP

SH

R

T

CLOSE

K2

NE5090

ANALOGOUTPUTS

A2

G

TB2

A1

N.O.

EXHAUSTCONTACTS

GND

GND

AUX3

AUX2

7824

D25

U14

VR

3

R40

ADJUST5.11V

C27

7812 C26

VR

2

D1

D3

D4

D2

PJ1

PR

ES

SU

RE

SE

NS

OR

JA

CK

+5V

R7

OAT

RAT

+12V

SAT

ANALOGINPUTS

GN

D

SIG

Use 3-Connector Ribbon Cable When ConnectingAuto-Zone Plus Zone Manager BoardTo EZ Zone Keypad & Display Board

USE CARE TO ROUTE THE RIBBON CABLE SO THAT IT IS NOT CRIMPED AND SOIT IS CLEAR OF ENCLOSURE COVER SCREWS WHEN INSTALLED

CAUTION!

Figure 18: 3 Connector Ribbon Cable Installation

Note:The 3 Connector Ribbon Cable Is Only RequiredWhen Connecting A System As Shown InExample #2 On Pages 10 & 11 Of This Guide.

Ribbon Cable Installation

EZ Zone/Meridian

Upgrade 31

036-21423-001 Rev. A (0602)

Upgrade Parts List Summary

All the standard components that are required or avail-able for the Meridian to EZ Zone upgrades are summa-rized below. See the upgrade examples on pages 8through 13 of this manual for the parts lists that arerequired for your specific application.

For other Meridian products such as CV Unit Control-lers, Lighting Panel Controllers etc., please see pages14 & 15 or consult the factory to see if these are avail-able for your specific application.

Part No Description

2ZSM004702924OE392-01-SYSM

System Manager (U sed o n P lus S y s tem s)Inc lud es : S y stem M anage r O n ly .

2ZZC004708124OE751

EZ Zone To Auto-Zone Basic Upgrade KitInc lud es : Z o ne M an ag er B o ard w / M o un tin g S c re w s, P las tic S ta nd o ff K it fo rZ o ne M anag er, R etu rn A ir S enso r, U p grad e L ab e l, In s ta lla tio n In struc tio ns.

2ZZC004708324OE753

EZ Zone To Auto-Zone Plus Upgrade K itInc lud es : Z o ne M a na ge r B o ard w / M o un ting S crew s, P lastic S tand o f f K it fo rZ o ne M anag er, M in iL in k w / M o un ting H ard w a re , R etu rn A ir S enso r, 3 W ayD isp lay /K ey p ad C o nnecto r cab le , U p grad e L ab el, In sta lla tio n In struc tio ns.

2ZDS004700224OE231

Duct Temperature Sensor(1 0 ko hm w ith 1 2 ” P ro b e , u sed fo r R etu rn o r S up p ly A ir S en so r)Inc lud es : D uct T em p era tu re S en so r, 2 W ire w ith 1 2 ” L o ng P ro b e .

2ZOT004704424OE250

Outside Air Temperature Sensor (1 0 ko hm )Inc lud es : T em p era tu re S e nso r M o u n ted in W eathe rp ro o f H and y B o x .

2ZEM004703424OE419-04

Rem ote Data Link (M od em - E x terna l -1 4 ,4 00 B aud )Inc lud es : M o d em and 12 0 /9 V A C P o w er S up p ly .

2ZCP004703124OE361-04

Com mLink II (U sed o n B asic & P lus S y stem s )Inc lud es : C o m m L ink II, P o w er S up p ly & C ab les fo r C o nnectio n to C o m p u ter andR em o te L in k a re In c lud ed .

2ZZC004708224OE752

Replacement EPROM ChipC o ntain s A u to -Z o n e so f tw are to rep lac e E Z Z o ne so ftw are in Z o n e C o n tro lle rInc lud es : E P R O M C hip

2ZZC004708424OE755

Modem Linc Central To Comm Link II Upgrade K itInc lud es : C o m L ink II E P R O M U p grad e C h ip , U p grad e L ab el

2ZZC004708524OE754

Master Interface Board To MiniLink Upgrade KitInc lud es : M in iL ink E P R O M U p grad e C h ip , U p grad e L ab el

2ZXX004708124EC101600-3

Blank Enclosure CoverU sed to rep lace E Z Z o n e M as ter C o n tro ller C o ver w h en K eyp ad & D isp lay a reno t D esired . In clud es: M e ta l E nc lo su re C o ver O n ly

2ZVS004700024 ZoneView AZ SoftwareW ind o w s B ased S o ftw are fo r A cces sin g S ystem us in g a P CInc lud es : 3 .5 ” F lo p p y Insta lla tio n D iske tte s and O p era tio ns M anua l.

Subject to change without notice. Printed in U.S.A.

Copyright by Unitary Products Group 2002. All rights reserved.

UnitaryProductsGroup

5005YorkDrive

NormanOK

73069

036-21423-001 Rev. A (0602)

Supersedes: Nothing

Documents

EZ Zone - UPGNET · EZ Zone Upgrade Overview ... computer front end software available when CommLink and a PC are used ... MiniLink Communications Interface