The Unico System Training Catalogue - Capco Supply€¦ · The Unico System ® The Unico System ® Training Catalogue Outlets are available in styles and finishes to match any décor

The Unico System®

The Unico System®

Training Catalogue

Outlets are available in styles and finishes to match any décor.

UNICOSYSTEM.COM (800) 527-0896

WIT

H

Table of Contents

I. IntroductiontoUnico a. Who we are ............................................................................. Slide1 b. Where we are made ................................................................ Slide1 c. HowtheUnicoSystemworks ............................................Slides6-11 d. AdvantagesoftheUnicoSystem .....................................Slides12-15

II. PartsandPiecesthatmakeupaUnicoSystem a. ReturnAir ........................................................................Slides22-34 b. AirHandler,PartOne:Configurationsandsizes ........Slides35-39,48 c. Blower Module ................................................................Slides49-66 d. AirHandler,PartTwo,Coils,waterandrefrigerant. Heatingoptionsandaccessories .....................................Slides67-77 e. Supply .............................................................................Slides78-98 f. Outlets ..........................................................................Slides95-111

III. Layout,designandinstallation a. HowtodesignaUnicoSystem ....................................Slides113-117 b. Rulesofinstallation .....................................................Slides118-132 c. Startupandtestprocedures............................................... Slide133 d. Conclusion,furtherreading ........................................Slides134-137

Slide 1 Unico Presentation

•Plenum •Supply Tubing

(UPC-25)

•Blower

Modules

•(2430,3642,

4860) Heating

Module

•(MH2430,

MH3660)

•Cooling

Modules

•(MC2430,

MC3642,

MC4860)

•Return Air

Adapter (UPC-

59-xxxx)

•Sound

Attenuator

(UPC-26C)

•Secondary

Drain Pan

•Return Air Duct •(UPC-04-xxxx) •Return Air Box •(UPC-01-xxxx) •Elbow •Sound

Attenuator

(UPC-26C)

•Outlet (UPC-

56B)

Welcome to the Unico System! We are a family owned US Business produced and manufactured in St. Louis, MO and in business since 1985. We are the world’s leading manufacturer of SDHV (Small Duct High Velocity) systems and are sold worldwide.

Slide 2 Unico Presentation The Unico System

• Website is www.unicosystem.com• Customer Service is available from 8 a.m. to 5 p.m. Central

Time at: 1-800-527-0896• Alternative website: tech.unicosystem.com

Here are the ways to reach us: • By Phone at 800-527-0896 • By email:

[email protected] • Website www.unicosystem.com • Website for professionals:

http://tech.unicosystem.com


Many classes, webinars and videos are also available on the Unico University website. To reach it directly go to www.unicosystem.com/training


Click on the Unico University badge


When you are going on for the first time: Go to the upper right hand corner and select “sign-up”. The pop up will have you enter your basic information. After you have registered, merely click “login” it will ask you for your email address to use as an ID.

Slide 6 Unico Presentation Unico vs. Conventional

• High Static Pressure*• All fittings MUST be tightly sealed• Duct efficiency

• *NOT consider high static pressure by ASHRAE Ratings

Unico Systems are pressurized. We have much higher static pressure than conventional sheet metal HVAC systems. As a result, there is less duct leakage because leaks are more noticeable

Slide 7 Unico PresentationMuch Higher Discharge Velocity

0 500 1000 1500 2000

Velocity, ft/min

Conventional

SDHV

Much higher velocity, than a conventional sheet metal system design. However, very little air (maximum of 35 CFM) is used comparatively, plus there is a special sound deadening tubing used

Slide 8 Unico Presentation Unico vs. Conventional

• Roughly half the CFM (200-250 vs. 400)• High Static Pressure (Avg. 1.5” w.c.)• Refrigeration Coil vs. A/C Coil• Greater Temp. Drop in AC• Greater Temp rise in Heat Pump• 1000 to 2000 fpm velocity• Aspiration vs. Diffusion and Throw

Here are the major differences between Unico (SDHV) and a conventional designed sheet metal furnace, The last item, aspiration, is the heart of the Unico system and will be explained in detail next

Slide 9 Unico Presentation Aspiration vs. Throw

DeadZone

DeadZone

Returns MUST beopposite supply.

DraftsNarrowBandof HighVelocityAir

GentleAir MovementThroughout theRoom

Return canbe anywhere

Aspiration “Mixes” the air, conventional systems Throw, Diffuse and Return the air. The high velocity air creates a Venturi effect at the outlet which creates a slight negative pressure at the outlet, which draws in and mixes the air. No drafts, no streaking of dirt and less than 2 degrees temperature difference in the room


Aspiration Creates Low Pressure Area at the Outlet

Discharge air quickly mixes with room air lowering the supply air temperature more than 22° in 12”

Aspiration quickly mixes conditioned air with the room air. In this demonstration of aspiration in action the air temperature leaving the outlet is 119 °F (48.5 °C) which quickly drops to 97 °F ( 36.1 °C) within 12 inches (304.8 mm). Similar ambient air mixing takes place in cooling.


Approx

dB(A)

2"

Sound Level CFM

Outlets/ton Recommended application

ultra low 25 20 10 Multimedia Rooms, high altitude

very low 27 28 8Rooms with hard surfaces (wood or concrete floors and walls)

low ** 29 33 7 Rooms with carpet, drapes, furniture

normal 32 40 6Large rooms or where sound is not critical (minimum number of outlets)

excessive 35 45 5 Industrial environments

Decibel Levels

Less Airflow:Less Noise

Quiet enough to be used in recording studios, 20 CFM or less is below the 25 decibel curve.

Slide 12 Unico Presentation Where is Unico Used?

• Applications– Residential: Historic, Retrofit, Custom Home– Commercial: Universities, Churches, Offices– Industrial: Spot Cooling– And many more

Anywhere space is limited and comfort is desired, you can use Unico.


The Total Comfort System

Unico is a great tie in with hydronic heat, particularly radiant floor. Can provide fresh air, such as ERV’s and HRV’s as well as providing a superior heating and cooling system

Slide 14 Unico Presentation Small Space

Biggest reason we are used is right here


You are looking up a twenty foot ceiling. The Unico outlets are wood circles in the middle of the panels.

Slide 16 Unico Presentation Any Condensing Unit



The iSeries by Unico

When using a Unico Coil with a TXV (Thermal Expansion Valve) any major equipment brand of air conditioning condensing unit or heat pump may be used

The Unico System also works with Geothermal Heat Pumps, they can be set up for refrigerant based or water-to-water. We make a chilled water coil, then can also handle hot water for these applications

The iSeries by Unico is an inverter heat pump that is meant to work exclusively with the Unico System. The Unico System uses a different coil and blower module, as this unit utilizes EEV (Electronic Expansion Valve) technology instead of TXV (thermal expansion valve). There is a separate training series on this available to you

Slide 19 Unico Presentation Ratings

• www.ahridirectory.org

• Classified as “SDHV” indoor units

The AHRI classifies the Unico System as SDHV (Small Duct High Velocity), these listings can be found at www.ahridirectory.org under the classification “Air Conditioners”. To find a specific match up, go to the selection of the outdoor unit of your choice and the use “Unico System” as your indoor coil. You can also use “SDHV” as a category to get a broader list of matchups

Slide 20 Unico PresentationEnergy Efficiency Differences

SDHV ConventionalThermal losses 4% 8%Duct leakage <5% 15-20%Duct efficiency* >80% 50%

System efficiency, Btuh/W(SEER x duct efficiency)

8.80 6.50

* Based on ASHRAE Standard 152

Thermal losses are lower because a) less surface area, b) higher density insulation, c) enhanced R-factor because of ‘cylinder’effect... This referenced in the ICC codeunder section PMG-1009

Slide 21 Unico Presentation We are a pre-designed, pre-

engineered system from the return air to the supply outlets, from one to five tons. This picture shows the three sections that make up a Unico System: Return Air, Air Handler, Supply

Slide 22 Unico Presentation RETURN AIR

• No different from Conventional HVAC ECXEPT*:– Only 250 CFM per ton– Use .05” w.c. static pressure

*Refer to Unico Tech Note 106

As with all ducted systems, we need to “Breathe In” as well as “Breathe Out” , the only real differences with the Unico System are: • Only 250 cfm per ton is needed • The aspiration principle usually

eliminates the need for multiple return air ducts


Here is the Unico Return Air Section, we have, from left to right: An Adapter A Return Air Duct A Return Air Box and Filter

Slide 24 Unico Presentation Return air design

• Conventional air return• Typically ceiling for attic units• High for cooling/Low for heating• Usually at the top of a stairway

The Unico System return duct system is a conventional duct system, only smaller because the system uses less air. Typically, this return register is mounted in the ceiling of a central hall near the unit when the unit is mounted in the attic. Multiple returns should be used when conditioning two or more spaces that do not communicate with each other. Avoid creating a negative pressure zone near gas fired equipment. It is best to position the return high, near the ceiling, for cooling systems and low, near the floor for heating systems. When heating and cooling use two

returns, one high and one low. If you can only use one position it for the most important season. An open stairwell behaves like a chimney. Hot air will rise between floors so the heating load for the first floor will be higher than expected from a typical load calculation. As with supply outlets the return air grill placement should be discussed with the client.

Slide 25 Unico Presentation Typical Return

Stairwell acts like a chimney in the summer months, the hole that we cut for our return air box is also the size of most of our air handlers, making the installation easier


“Q” Bands Included”

Conventional disposable filter is standard with the return air box, but any third-party filter will work, provided that the static resistance at the rated air flow is less than .10” w.c. Remember, we only need to return 250 CFM per ton

Slide 22 Unico Presentation RETURN AIR

• No different from Conventional HVAC ECXEPT*:– Only 250 CFM per ton– Use .05” w.c. static pressure

*Refer to Unico Tech Note 106

As with all ducted systems, we need to “Breathe In” as well as “Breathe Out” , the only real differences with the Unico System are: • Only 250 cfm per ton is needed • The aspiration principle usually

eliminates the need for multiple return air ducts


Here is the Unico Return Air Section, we have, from left to right: An Adapter A Return Air Duct A Return Air Box and Filter

Slide 24 Unico Presentation Return air design

• Conventional air return• Typically ceiling for attic units• High for cooling/Low for heating• Usually at the top of a stairway

The Unico System return duct system is a conventional duct system, only smaller because the system uses less air. Typically, this return register is mounted in the ceiling of a central hall near the unit when the unit is mounted in the attic. Multiple returns should be used when conditioning two or more spaces that do not communicate with each other. Avoid creating a negative pressure zone near gas fired equipment. It is best to position the return high, near the ceiling, for cooling systems and low, near the floor for heating systems. When heating and cooling use two

Slide 27 Unico PresentationCheck Resistance of Air Filter

No more than .10” w.c. pressure drop at rated CFM

Here is a manufacturer’s (Honeywell) rating of resistance in inches of water column at a given CFM. As you can see, since our three ton unit only needs 750 CFM, we are compatible with high MERV filters


Unico Can be used in conjunction with IAQ

Here we have an electronic air cleaner, a humidifier and a UV light bulb

We help you to sell IAQ, you can add third party filters, humidifiers and UV light bulbs. Be sure to have all of these on the RETURN air side. With humidifiers, do not use these where the air handler is in a conditioned space. Refer to our tech notes as to connecting Unico to specific humidifiers, such as power, steam, etc.

Slide 29 Unico Presentation Return Air Section

•Return Air Duct–Sound Attenuated–Flexible–Insulated: Mylar, Fibreglass with Spun-bond Nylon Core–Returns air to Air Handler–Attaches to Return Air Box fitting with large white plastic cable tie

Please be sure to use OUR return air duct if possible. It is especially from the same material that we use on our supply tubes to keep the system quiet. It is sold in a twelve foot length that can be easily compressed to have shorter runs.

Slide 30 Unico Presentation Return Air Section

•Return Air Adapter–Hot Water Return Adapter (Suitcase Latches)–Cooling only Return adapter (Flange)–Return air duct attaches with large white cable tie (found in grill box)

Hot Water return Adapter

Cooling only return Adapter

Two types of return air adapter: • For Cooling Only applications, use

the self-tapping metal screws provided with the air handler

• For Hot water Coil and Multiple Return Air Boxes, use the adapter that uses suitcase latches to connect


Multiple Return Air

99% of Retrofit have only 1 return, However, multiple returns are okay

Almost all of our retrofit jobs have one return, as the aspiration concept is taking the role of the return air duct in keeping the air flow mixed. However, there are some codes that require more returns, such as each floor or each room is required to have a separate return. Be sure to follow ACCA Manual “D” recommendations


Slot for disposable filter, note the two clips on the top, makes installation much faster

Slide 33 Unico Presentation RAP INSTALLATION

How this works in the real world. You just cut in a space into the box for each return air duct


PlenumAd2)

ControlBox

Module

Return

ERV r HRV

Field Supplied Insulated box with duct collars

Outdoors

Typical ERV/HRV Layout

This is another third-party item. ERV’s are used more for the warmer climates and HRV’s in the colder climates. They can easily be connected to the return air side of the Unico System


Unico Air Handlers


Slide 37 Unico Presentation Air Handlers

• 5 Sizes– 1 to 1 ½ Tons– 2 to 2 ½ Tons– 2 ½ to 3 Tons – 3 to 3 ½ Tons– 4 to 5 Tons

• All modular except for U1218• New Vertical Air Handler, Up-flow only, one piece

Five Sizes: 1 to 1 ½, 2 to 2 ½,2 ½ to 3, 3 to 3 ½, 4 & 5 Tons, these units are modular (except for the U1218 and Vertical Air Handlers) so they are multi-poise (can go up, down, or sideways)


13 ¾”13 ¾” 13 ¾”

13 ¾” 13 ¾”17 ½”

17 ½”

17 ½”

Parts match-up with the A/C and Hot water coil. Notice that when you order the M4860 coil it comes with a 6” spacer... Pulls air across instead of pulling the air

Slide 39 Unico Presentation Air Handler Modules easily lock

together with suitcase latches

Slide 40 Unico Presentation Slab Coil

Our Four Row (Air-Conditioning) Coil. This is a medium temperature refrigeration coil and is thicker than a normal air-conditioner


4860 Coil Module

New MC4860 with spacer in vertical position. See how the coil extends beyond the casing, necessitating the use of the spacer. A drip pan is included with the spacer for use in horizontal applications


Spacer Module

Parts match-up with the A/C and Hot water coil. Notice that when you order the M4860 coil it comes with a 6” spacer... Pulls air across instead of pulling the air for better thermal transfer

Slide 43 Unico PresentationHorizontal Air Handler Mounting

Note the use of rods to transmit noise to the ceilings, some installers use chains instead of rods and others use a field fabricated platform of 4”x6” wood blocks and vibration dampeners


Four and Five Ton Vertical Air Handler

Only the four and five ton system needs to be installed this way, we have a new one piece Upflow vertical air handler for the 2430, 3036 and 3642 sizes. The U1218 has two drain pans and is meant to install as either a vertical or horizontal application


Unico Vertical Air HandlerPerfect for closets, utility rooms or under stairs• Packaged Painted• Quite Operation• Less than 24” width• 42 and 44 In Height• Less than 5 feet install height• Ready for optional hot water or Chiller coil

New one-piece vertical air handler


Unico Vertical Air HandlerSize Dim (IN) Tonnage Capacity2430 20x20x42 2 - 2.5 24000 - 300003036 20x24x42 2.5 - 3.0 30000 - 360003642 24x25x44 3 - 3.5 36000 - 42000

Uses an “A” coil instead of a slab coil. Can use either hot water or electric furnace as a backup heater. Designed to fit into a closet

Slide 47 Unico Presentation Widths and Depths of the VAH


Slide 49 Unico Presentation Blower Module

The blower module comes in several configurations. Each blower is balanced to Unico specs and features direct drive motors located in the air stream. An easy to adjust restrictor plate is mounted to the exterior of the unit for system balancing after startup.


Types of Blowers

Blower Module

Slide 51 Unico PresentationThe Unico System Air Handler

• Types of Blowers– Can be one of two styles of motors– PSC (Standard)– EC (Variable Speed)

Slide 52 Unico Presentation ECM … PSC

Side by side comparison of the old PSC motor (on right) with the new ECM. Silver item at the bottom is the controller, these are very sensitive to high heat, therefore don’t use a hot water coil with entering water temperature of greater than 150 degrees

Slide 53 Unico Presentation For checking the standard single

speed blower motor. Make sure it reads “True RMS” and can read to .001 amps, just clamp to one of the motor leads and record the amp reading. If it is too high, then you can adjust the CFM with the restrictor plate (included in blower)

Slide 54 Unico Presentation Blower Specs

Amps = Cfm, this label is provided for your convenience on all standard single speed blowers

Slide 55 Unico Presentation The restrictor plate can be used to

adjust the airflow of the standard single speed blower module. Use this to try to make the amp draw as close as the aforementioned label recommends. If you still can’t get the proper amp draw with the restrictor plate wide open, you are probably short of outlets

Slide 56 Unico Presentation EC Blower

• SCB Board

The control board for the Variable Speed (EC) motor. One control board is used for all five sizes of blowers. There is a USB port included in the control board for an optional connection of a PC based computer

Slide 57 Unico Presentation How does it work?

• Uses the Emerson (NIDEC) EC motor, a very common industry motor, the M055 Series

• Controller can be ordered separately• The controller for the motor is specific for the designs of the

Unico system.• Sets a constant CFM by adjusting the RPM to conform with the

Unico System fan curve

Slide 58 Unico Presentation Fan Curve

• Uses up to 45% less energy• Much slower RPM• Air Handler Much Quieter• In the following Slide we have

– 1250 CFM at 1400 RPM (MAX)– 488 watts of power consumption– See additional speeds for Stage 1 and Fan

Slide 59 Unico Presentation Blower Curve

• 1. 1250 cfm 1.2” w.c. 488 watts (Y2)• 2. 625 cfm 1.2” w.c. 210 watts (G)• 3. 700 cfm 1.2” w.c. 280 watts (Y1)

EC motors use about half of the energy of a PSC (or standard) blower module. Because of this more manufacturers are switching away from PSC to EC. As you can see, our largest blower module uses about half the energy of a coffee maker

Slide 60 Unico Presentation Unico ECM Features

• Doesn’t Need a Restrictor Plate• Operates at 120 or 230V (different part number EC1 or EC2)• Can be setup two way

– Use Defaults– Program with Laptop


Multiple Wiring ConfigurationsThere are multiple easy to follow wiring configurations depending on your equipment and requirements. They are located in Bulletin 30-39

Slide 62 Unico Presentation The same solid state control board is

used on all Variable Speed motors. Wiring is point-to-point for ease of use. The board is protected with a 2 amp automotive fuse (a spare fuse is also included with the board)


LED Lights Default Settings

LED Lights: Power, indicated 24v supply; Heat, unit in heating mode, PCB Control, something on the board’s software is causing the fan to run. Fan: flashes long for 100 CFM, short for 50 CFM Default The preset speeds for all units, allows you to program without a computer

Slide 64 Unico Presentation Default Settings

Switch Mode 1218 2430 3642 4860

High 400 (189) 625 (294) 875 (413) 1250 (590)

Low 300 (142) 500 (236) 750 (354) 1000 (472)

Y2 (high cool) Default Airflow, CFM (L/s)

Mode Default (compared to Y2)

Y1 (low cool) 75%

G 50%

W1 (low heat) 75%

W2 (high heat) 100%

E (emergency) 100%

Max RPM = 1800

Explanation of the default settings, these can be changed by using the laptop computer. The green check marks on the computer program can be unchecked to give you more control on setting the Y1 and Y2 speeds

Slide 65 Unico Presentation How to Connect

Use a laptop to connect to a PC based computer. The USB to USB cord and software disc are included with the control board. It’s not required that you use a laptop, but remember, if you set the system up without the laptop it will be programmed for 250 CFM per ton


Square to Round Supply Adapter

7” – 9” – 10” Dia.

Square Adapter (UPC62) also available

A square to round adapter mounts directly on the front of the blower cabinet for easy plenum installation. The plenum adapters are 7” for the 1218 & 2430, 9” for the 3642 and 10” for the 4860.

Slide 67 Unico Presentation Coil Modules

• 4 Row Coil • 6 Row Coil

Six Styles 1. DX2. Chilled Water3. Heat Pump4. Cooling Only5. R22 (dry charge, the TXV

will have to be ordered separately)6. R410A

Slide 68 Unico Presentation INSTALLING THE TXV

IL00390.CVX

ExpansionValve

Distributor

LiquidLine

Bulb

ExternalEqualizer Line

Seal Plate

ExpansionValveDistributor

Seal PlateBulb

LiquidLine

ExternalEqualizer Line

IL00392.CVX

TXV is shipped in a box taped to the drain pan, all valves are R410A. Chetleff fitting is very easy to field install

Slide 69 Unico Presentation Unico Condensate U-Trap

Unico Part No. DescriptionA00924-G01 U-Trap, ModularA00924-G02 U-Trap, M1218

A00924-G03 U-Trap (Float Switch), ModularA00924-G04 U-Trap (Float Switch), M1218

Included with Coil Module, no reason not to have P trap. Float switch now is included that can be hooked up to an alarm or light. The iSeries system will have a spade connection labeled “Overflow”.


HEATING MODULE 2 PARTS

Hot Water Coil Coil Box

Coil and Box, now sold as one piece. Can be ordered separately if the customer wants hot water heating for future use

Slide 71 Unico Presentation SIZING HOT WATER

Do 600 cfm 8 gpm at 180 vs 120 to see the huge difference


Electric Furnace

Slide 73 Unico Presentation Sizes Available

• 2 ½ KW • 5 KW• 7 ½ KW• 10 KW• 15 KW• 20 KW

Slide 74 Unico PresentationINSTALLING AN ELECTRIC DUCT HEATER

• Now mounts directly to the blower module• In the past UL requirements made us put this four feet

downstream from the air handler

Feature and benefit here


Slide 76 Unico Presentation Be sure that the control box for the

electric furnace is located as shown in this picture

Slide 77 Unico PresentationBe Sure to Follow Correct Airflow

Airflow MUST be in the direction of the arrow on the electric furnace. The elements will not energize until airflow is detected.


Supply Air Components

Slide 79 Unico PresentationPre-Fabricated Fiberglass Duct 6 foot sections, pre-fabricated, or

flat. Can be in R4 or R6. R8 is not manufactured by Unico and it is recommended for R8 to use sheet metal


Metal Plenum26 gauge recommended

Sleeved or Wrapped with Correct Insulation

Single wall pipe, needed in either 7”, 9” or 10” round or the rectangular equivalent is needed depending on the tonnage of the system. 26 gauge metal is recommended, the pipe can then be insulated to the proper “R” factor


Sheet Metal Installation Kit


Fibreglass Installation Kit

An installation kit for the metal plenum, this includes all the necessary items for attaching the supply tubing to the metal plenum. Clockwise from the top we have: A Coupler for slicing supply tubing segments together A metal take-off that connects the plenum to the supply tube A standard white round outlet A thermal overlay gasket A gasket to fit between the metal take-off and the plenum A winter supply shut-off A balancing orifice kit Toggle bolts and screws for attaching the white round outlet Clamps: Aluminum for sound attenuator, black for aluminum core tubing Tape rings for making the final connection to the supply tubing

Fiberglass installation kit, all parts are the same as the metal installation kit, except we have a spin-in take-off for the fiberglass duct

Slide 83 Unico Presentation Aluminum core clamp, used for

attaching the sound attenuator tubing to the takeoff (either the metal take-off or the spin-in fiberglass take-off)


Making a Fiberglass Takeoff

Close up of the fiberglass take-off. To install, cut a two inch hole in the fiberglass duct, bend the take-off at the rivet and spin the take-off into the fiberglass. It has its own self-sealing gasket

Slide 85 Unico Presentation An overview of how the metal take-off

is made: • Prepare the plenum and insulate• Cut an “X” shaped pattern where

you want to make the take-off• Place the smaller gasket on the

bottom of the take-off• Drill a 2" hole• Use four self-tapping metal screws

to connect the take-off to the plenum.

• Place the thermal overlay gasket on top of the fitting

• Place a tape ring on top of the assembly

• Connect the supply tubing with the appropriate clamp

Slide 86 Unico PresentationFor Insulation Greater Than R4

Detailed drawing of how to seal the insulation on the plenum after the take-off is made

Slide 87 Unico PresentationSound Attenuator Tubing

•Coupling to Plenum–Silver ring over centrecore.–Secure at least 2 core ribs over the nipples on the take-off fitting–Clamp ring with UPC54 –Not Pliers

The procedure shown in the picture is how we use the clamps to attach the supply tubing to the take-off. Be sure to use our UPC54 tool, not a pair of pliers

Slide 88 Unico Presentation An overview of how to use the

UPC54. Open the pliers completely and crush the ears of the clamp as shown in the picture

Slide 89 Unico Presentation Tubing and Outlets

Sound Attenuating Tubing Aluminum Core Duct

We make two styles of supply tubing.

On the left is our sound attenuated tubing, sold in 12 (twelve) foot lengthsOn the right is our aluminum core tubing, sold in 25 (twenty-five) foot lengthsA minimum of three (3) feet of sound attenuated tubing is required at the end of every aluminum core tubing run


Sound Attenuator Tubing

–UPC-26C-6–12’ in Length–6 Lengths per box–Unico System PatentedProduct

As you can see, the nylon mesh material used to make the sound attenuating tubing is porous, the air pressure is sealed by the Mylar jacket. Take care not to rip the outer jacket as pressure will escape


Aluminium Supply Tubing

–UPC-25-4–25’ in Length–4 Lengths per box–Unico System PatentedProduct–Used for ExtendedLengths–Black clamp rings only

The aluminum tubing is very rugged and is like a chimney liner. The point to remember is that you MUST have at least three (3) feet of sound attenuating tubing at the end of the aluminum core tubing run or the system will be noisy


NO Acoustical Properties

Must have three feet of Sound Attenuator Tubing

Used for longer runs. NO noise abatement so 3 feet is required for ending section

Slide 93 Unico Presentation Supply Duct

• Have greater than a five inch radius• Try to make supply duct end like a “Question Mark”• Too tight a bend causes noise

Slide 94 Unico Presentation Two and ½ “ Duct

• Available in– Aluminum Core– Sound Attenuating Tubing– R4, R6, and R8 Insulation Values

Both styles of tubing are available in insulation ranging from the standard R3.3 to as high as R8. Use of higher “R” values is dependent upon the local code. Of course, higher R values will mean a larger O.D. on the supply R3.3 is about 3 ½” and R8 is about 6” O.D.

Slide 95 Unico Presentation Why 2 ½” Duct?

• Fewer Outlets Needed• Average 45 cfm per outlet, five per ton• Saves Time as a result• Same sound level as two inch, but more airflow• Uses a new threaded outlet (left hand thread)

2 ½” I.D. Duct is also available, it requires fewer outlets, as you have the same sound level with 45 CFM with these as opposed to 35 CFM with 2” outlets.

Slide 96 Unico Presentation New Screw-In Outlet

Left-hand threaded outlet, used with both two inch and two and one-half inch tubing.

Slide 97 Unico Presentation Even side by side

Makes it much easier than conventional. Go back to aspiration principles. Remember a change of only 3 degrees with on inside wall to outside wall 20 feet away (2 degrees or less with an outside wall 15 feet away)

Slide 98 Unico Presentation Limitations on 2 ½” Duct

• Only 2” Tubing Can be used with the following:Fiberglass Duct

– Slotted Outlets– Fire Rated Outlets

For a few applications only the 2” tubing can be used

Slide 99 Unico Presentation Unico Outlets Outlets are available in a wide variety:

Plastic Wood Round Slotted Brass Chrome, etc. Outlets are very important to the homeowner and can add more profit to your job


Outlets - Round

•White–Standard in the ‘plenum install kits’–2” discharge hole.–5” Flange–Includes locating screws andspring clips–Can be Painted to Match

Standard white outlet is included with all installation kits, it has a high fiberglass content and can be easily painted. It looks a lot like a recessed light fixture in a ceiling

Slide 101 Unico Presentation Can you find the outlet?

It’s right in front of the radiator. He painted it to match the tile

Slide 102 Unico Presentation Sloped Outlets

• Application:• Cathedral Ceilings

• Features• One-piece construction• Lightweight• Ribbed for clamps• Integral “tape-ring”• Simple installation• Compatible with Unico toggles• Paintable

• Options:• Metal plated – chrome, brass,

aluminum

UPC-56B

90 slotted

Use a thermal barrier “air curtain” in vaulted ceilings, you place the sloped (either 15 or 25 degrees) where the vault starts, this keeps the warm air from rising to the ceiling in the heating cycle

Slide 103 Unico Presentation Outlets - Wooden

ScreenWood outlets add value to the homeowner and the installing contractor. All wood outlets come with a ¼” hardware screen to protect against foreign objects. We have a wide variety of woods to choose from

Slide 104 Unico Presentation An example of how easily the wood

outlets blend into the floor.

Slide 105 Unico Presentation All we really need to make aspiration

work is a 2” hole, here they are using Unico in a log home where space was extremely tight

Slide 106 Unico PresentationUPC56-FR Fire Rated Outlet

Slide 107 Unico Presentation Slotted Outlet


Our Fire Rated Outlet (part number UPC56FR) is a UL-555 rated device that will seal off the opening if the air handler reaches above a certain temperature, closing off any smoke. These are only available for two inch duct. Many commercial buildings will require these to meet code

A slotted outlet is perfect for high side wall applications, where we would have less than five inches radius. They can also be used for floor and ceiling applications. We make these in the 90 degree slot as shown here and in a straight in slot. Attractive to the homeowner and the installing contractor, looks and value

Also available in straight in slot

Slide 109 Unico Presentation UPC101 if there is NO space

available, we need to use fiberglass plenum with this to absorb the noise. At LEAST SEVEN (7) per ton are needed.

Slide 110 Unico Presentation Use either fiberglass or lined sheet

metal, the plenum is now the acoustical material. Note: MUST BE FIBERGLASS or LINED SHEETMETAL

Slide 111 Unico Presentation Plaster frame kit for working on

new construction for the ease of the drywall contactor. Similar to a recessed light kit

Slide 112 Unico Presentation Tools

UPC53-50

Turbometer

UPC 54

UPC 55-5UPC52-50

“Cookie Cutter”

EVERYONE MUST HAVE: 1. UPC54 and 2. Turbometer, the “Cookie Cutter” shown in the lower left is only used with the fiberglass plenum


The Rules of Unico

A Brief Overview

Here we will give you the basics of designing and installing a Unico System


How to Design a Unico System

Slide 115 Unico Presentation Introduction

• This consists of two parts:– Load Calculation: Determining the proper amount of energy for

heating and cooling– Duct Layout: How to properly size and install the Unico Small Duct

High Velocity System

There are two parts to a design and layout • The Load required• The layout and installation of the

Unico System

Slide 116 Unico Presentation Load Analysis

• LOAD ANALYSIS• Quick Sizer (Unico Bulletin 40-20)• This makes a number of assumptions• ASHRAE Manual J

– Very detailed, beyond the scope of this class

Slide 117 Unico Presentation Outlets in a Room

• If we have 200 c.f.m per ton, then each outlet will have anywhere from 20-35 c.f.m

• Each outlet will be about 2000 btus cooling* and 4000 btus ofheating

• Outlets can be anywhere it doesn’t blow directly on someone or cause something to move

• * In reality closer to 1500-1700 btus

Detailed load calculations are beyond the scope of our training. We assume that everyone uses industry standards, such as ASHRAE Manual J. We use the Wrightsoft load calculation program, but there are many other companies that will do load calculations. Of course, as with any program, the output is only as good as the information that goes into it

Self-explanatory

Slide 118 Unico PresentationRules of Unico to Remember

Slide 119 Unico Presentation Airflow

• Airflow • Airflow• Airflow

Can’t emphasize the importance of the airflow to the Unico System. 95% of all problems relate to a lack of airflow

Slide 120 Unico Presentation Not Equal Friction

This is what most think of for Warm Air Systems

Conventional designs for warm air systems are very complicated. A lot of calculations need to be made in order to be sure there is the proper airflow at the furthest register. Normally, we start off with .6” w.c. at most and then use either equal velocity or equal friction to determine the sizes of our trunks. A mistake here will result in poor airflow in the house

Slide 121 Unico PresentationUnico System Uses Static Regain

An Example of Static Regain

This is the idea that the Unico System uses: Static Regain. When the system starts up the air flows to the end cap and pressurizes the system, much like a garden sprinkler. In both cases the amount of airflow at the furthest outlet from the air handler will have approximately the same outlet as the outlet closest to the air handler. Of course, there is friction loss in the plenum, but it is minimal

Slide 122 Unico Presentation Plenum Sizing

• Think of– Small (7”)– Medium (9”)– Large (10”)

• Remember these are MINIMUMS

This can also be checked by using a “Ductulator” such as those supplied by companies like Hart and Cooley. We are going to figure 200-250 cfm/ton at 1.2” w.c. If needed we can always go one size larger

Slide 123 Unico Presentation Static Pressure

• Anywhere up to 1.5” w.c. is acceptable• This will vary when we have less restriction• Today’s system is very unusual as it has only six foot runs of

two inch tubing, therefore the static readings will be a little less than usual

• Only returns that have OVER .15” w.c. need to be included intotal static pressure

This is for our “Hands On” class, where we install a system with a minimum of plenum and fittings, usually 15’ of plenum and one bull-head tee.

Slide 124 Unico Presentation Plenum Sizing

Diameter Max CFM Typical Model

7” 700 1218 or 2430

9” 1000 3642

10* 1300 4860

*Required for M4860

This is a table using a duct calculator to determine the MINIMUM plenum size in round pipe for each system

Slide 125 Unico Presentation 60/40 Rule

• Split 50/50, no more than 60/40• Applies to all tees

If you have a tee in the system split the flow as close to 50/50 as possible, no more than 60% of the air flow on either side of the tee. This rule is true for every tee in the system although it is most important for the first tee. Q: Assuming that we are using 20 Fully Rate Outlets. What is the max on each side of the tee and of those tees?

A: 12 on one side

Slide 126 Unico Presentation 70/30 RULE

• No more than 30% of CFM on side branch

Turn a tee 90 degrees and you have a side branch (do not use the turning vane). The side branch can have no more than 30% of the total CFM.

Slide 127 Unico Presentation Different Plenum Layouts

Many designs are available for plenums, for more information see our Bulletin 30-01, also, think of these as being in 3 dimensions, so the “H” pattern could come from a basement, tee off at each floor level


1/14/2016 Unico System 128

The best layout of all. Now pressures are equal throughout the system. It doesn’t matter how many outlets you have on either side of a bull-head tee. Also when calculating Equivalent Length (EL) you do not count the two elbows and the plenum run between them


Space Takeoffs evenly

Maintain spacing between takeoffs as evenly as possible. Minimum 6 inches between takeoffs and 12 inches from end cap.

Slide 130 Unico Presentation 24 Inch Rule

You must be a minimum of 24 inches from the exit of the blower before any fitting or take off. Failure to do so will result in turbulence and noisy outlets


Space Takeoffs evenly

Maintain spacing between takeoffs as evenly as possible. Minimum 6 inches between takeoffs and 12 inches from end cap.


For Every 5 feet Over 10You Lose 10% of Capacity

25 ft.. run is 70% of an outlet24.5 CFM of air

We have a “FULL” outlet at twelve (12) feet of supply tubing, either with 2” or 2 ½” duct. As the runs lengthen, there is less air delivered due to friction losses. For example a 2” supply duct at twelve feet delivers 33 CFM (based upon 1 ½” static pressure), if we increase this to thirty feet we only deliver 20 CFM or 60% of an outlet. This is one of the biggest causes of failure is not enough “FULL” outlets. 2 ½” duct is more forgiving, but again, friction loss must be taken into account


Bulletin30-100(2011-05).pdf

Unico Commissioning Sheet

At the end of every job, it is a good habit to run a commissioning report. It takes a picture of how the Unico System was working when you left the job. If you are working with a General Contractor, have him sign off on this, if there are any changes made without your knowledge you are covered

Slide 134 Unico Presentation The first part of commissioning is

similar to the information that we need to register a job for warranty: Name, address, contact information and model and serial numbers

Slide 135 Unico Presentation The next section deals with the airflow

output of the blower module and the refrigerant system. The airflow at the motor is easily determined by: Checking the amp draw on the single speed motors and comparing it with the label Counting the flashes of the PCB LED at the control board Check refrigerant pressures with compound gauges. Check the charge by using the superheat that the outside unit manufacturer recommends.

Be careful of more than a 27 degree delta tee, as this would indicate low airflow

Slide 136 Unico Presentation The second page of the commissioning

sheet shows the output of each outlet. To measure this use the Turbometer to record wind speed in knots. Take this number and double it to get your CFM (for 2 ½” duct you need to multiply the knots times 2.37). This will show precisely how the system is performing

Slide 137 Unico Presentation Thank you for taking this class! Think

about using the Unico System for your next HVAC project

Unico, Inc.1120 Intagliata DriveArnold, MO 63010+1 800 527 0896 • +1 314 481 9000www.unicosystem.com Unico, Inc. manufacturing plant and sub-assembly plant

Unico, Inc. is the leader in Small Duct High Velocity (SDHV) heating and cooling systems and other high-end HVAC systems. The company manufactures all of its products in St. Louis MO, with over 200,000 square feet of modern manufacturing plants. The company is well known for extensive use in older, architecturally unique homes and buildings as well as elite, high end custom homes. The company is family owned and operated and sells in all 50 United States, all provinces of Canada, and in over 28 countries around the world.

Documents

The Unico System Training Catalogue - Capco Supply€¦ · The Unico System ® The Unico System ® Training Catalogue Outlets are available in styles and finishes to match any décor