Download - Air Handle

Transcript
Page 1: Air Handle

MANUFACTUREDWITH

AIRCOM ELECTRONICS

Operation, Sizing and Installation Manual

* LEAVE FOR HOMEOWNERNOTE: Due to ongoing research and product development, specifications,

ratings and dimensions are subject to change without notice.

69-AH0910

Installing Contractor

Telephone / Contact

Serial Number

Installation Date Model

TO BE COMPLETED BY CONTRACTOR AFTER INSTALLATION

AIR HANDLER

Models

AH-U-S4A-24-P16 (E16)AH-U-L4A-36-P16 (E16)AH-U-S2A-30-P16 (E16)AH-U-L2A-36-P16 (E16)AH-U-L2B-48-P16 (E16)

Page 2: Air Handle

2

Introduction.......................................................................3

Overview of the AH..........................................................3

Description and Purpose ..................................................4

Operation Heating/Cooling...............................................4

Combo System Basic Principles .......................................5

Plumbing......................................................................6-11

Installation ......................................................................12

Function and Controls ...............................................13-14

Aircom Relays ................................................................15

Start-Up Procedure .........................................................15

Troubleshooting ..............................................................16

Model Number Nomenclature Breakdown.....................17

Specifications ............................................................18-22

Work Sheets...............................................................23-28

Wiring Diagrams .......................................................29-30

Table of Contents

Air Condition coil freezing can damage thehydronic coil of the Air Handler.Install a Freeze Thermostat Kit to your airconditioning coil to prevent coil freeze up. Checkwith your air conditioner distributor to obtain aFreeze Thermostat Kit.

ATTENTION

The Air Handler hydronic coil is not to be used forchilled water applications where condensation isexpected.

ATTENTION

Page 3: Air Handle

3

You will notice that the heated air in your home feels morecomfortable than air heated by a conventional furnace. Onereason for this is that LIFEBREATH's hydronically heatedair is uniform and temperate... no short blasts of hot air orhot and cold temperature spikes. In this regard, the air flow-ing from your hot air vents will not feel as hot to the touchas air from a conventional furnace.With a high efficiency, adequately sized natural gas,propane or oil hot water heater/boiler, you will always haveplenty of hot water for showers and baths, washing dishesand clothes, and all other normal domestic hot water needs.If there is an unusually high demand for hot water, such asfilling a large hot tub, than all you need to do is allow moretime for the task so the water heater/boiler can keep up toits job of providing hot water for the heating system as wellas other household uses.

Once it is correctly installed, safety will never be an issuewith your LIFEBREATH air handler. No flames, fumes orflue gases to be concerned about. Your domestic hot waterheater/boiler now provides the heat source for your furnace.This Operating and Installation Guide will help you learnabout your LIFEBREATH Air Handler quickly and easily.The table of contents will show you where to find informa-tion on every feature of this unit along with easy tounderstand operating instructions. If, however, you doencounter a question that is not covered in this Guide youshould call the LIFEBREATH dealer who installed yourfurnace. Chances are that he will be able to give you a satis-factory answer but if he is unable to do so then we inviteyou to contact us directly.

Airia Brands Inc.

Introduction

Overview of the Air Handler

Hydronic Coiland PumpCompartment

AircomElectronicsand FanCompartment

Page 4: Air Handle

4

IMPORTANT NOTEThe purpose of this manual is to act as an installation guideonly for the LIFEBREATH Air Handler. Manufacturers'instructions for other components, such as the water-heater/boiler, must be followed.All national and local code requirements must be met wheninstalling a LIFEBREATH Air Handler. Be sure to consultthe proper authorities.�ote: Temperatures greater than 130°F (54°C) pose a seri-

ous risk of scalding individuals running domestichot water for potable use.

This appliance complies with IAS Canada Inc. RequirementCR95-003, Additional Requirements for Fan Coil Units foruse with Potable Water Heaters.All piping and components connected to this appliance shallbe suitable for use with potable water.Toxic chemicals, such as used for boiler treatment, shall notbe introduced into the potable water heater system.When using this system, and water for space heating is

required to be at a higher temperature than for other uses, ananti-scald valve shall be used to ensure water for other usesis reduced in temperature to minimize a scald hazard poten-tial.Combining two or more end uses such as space heating andthe heating of domestic hot water in a single system has thepotential to increase efficiency and reduce overall capitalcosts. However, the proper design, installation, and com-missioning of these systems are critical if these advantagesare to be realized.This manual provides a guideline of good engineering prac-tice in the design, installation and commissioning ofIntegrated Combo Systems. The guidelines in the manualare designed for residential forced warm air IntegratedCombo Systems which utilize domestic water heaters orboilers and the LIFEBREATH furnace. Heating and coolingloads shall be calculated in accordance with recognizedResidential Heat Loss and Heat Gain Calculation methods.Duct design shall comply with recognized Residential AirSystem Design methods.

Description and Purpose

Operation Heating/Cooling

When the room thermostat calls for heat, it activates a cir-culation pump located inside the Air Handler. This pumpdelivers hot water from the water heater, through the fur-nace coil and back to the water tank. Simultaneously, thefurnace blower switches on to high speed and will start cir-culating air across the coil, which picks up heat and deliversit to the rest of your home.Once the thermostat's temperature is reached the pump willshut off, and the blower will return to its pre-set speed oroff.�ote: When the furnace blower is left running on lowspeed the air in the home circulates continuously. Whenthe heat is called for the blower will automatically switchto a higher speed. After the required hot air has beendelivered the blower will switch back to low speed.

When the thermostat calls for cooling (evaporator coil andcondensing unit required), the furnace blower activates tohigh speed and the outdoor condenser unit is energized.After the thermostat temperature is reached, the condensingunit will shut off and the blower will return to its presetspeed or off.

Off Season Circulation TimerAll models are equipped with a circulation timer. It is nor-mal operation for these models to automatically run thecirculation pump for a short period of time intermittently.

Page 5: Air Handle

Closed Loop SystemA system becomes closed when a Check Valve or a back-flow prevention valve is installed in the cold water pipingupstream of the water heater.A check valve will prevent water being relieved into thecold water system due to pressure created whenwater is heated in the water heater.

5

WATER HEATER

DOMESTIC HOT WATER

SUPPLY AIR

BLOWER

HEATING COIL

CHECKVALVE

RETURN AIR

COLD WATER INLET

ANTI-SCALD VALVE (WHEN REQUIRED)

VALVE (shut off)

VALVE (shut off)

VALVE (shut off)

VALVE (balancing)

COOLING COIL (OPTIONAL)

DRAINVALVE

EXPANSION TANK OR OTHER MEANS

(WHEN REQUIRED)

CHECKVALVE

Combo System Basic Principles

Open and Closed SystemsOpen and Closed systems both deliver hot water and spaceheating.Water systems that incorporate a pressure tank (i.e. wellsystems) are normally Open Systems and most municipalwater systems are Closed Systems.

Drain ValveA drain valve is required to allow the heating loop to bedrained for service or repair and to remove air from theheating loop when commissioning a system. The drainvalve should be near the low point of the return piping sys-tem to be near the water heater. Ball, Globe or Gate Valvesare suitable for drain valves.

Check valves should always be installed in a vertical rise with the flow of water shown.

ATTENTION IMPORTANT

Refer to local codes, local bylaws and installationmanuals supplied with water heater before startingany installation work.

This Check Valveminimizes Thermo-Siphoning. ThermoSiphoning is the coldwater backflowingthrough the heatingloop when domestichot water is calledfor.

ConventionalCooling Coil(Not availablethrough Airia)

Page 6: Air Handle

6

Plumbing

In order to improve serviceability of our products, thecheck valve is included with our manual kit for field instal-lation between the air-handler and hot water source.The check valve should be installed in a vertical run ofpipe with the flow of water in an upward direction.An arrow on the check valve indicates its correct orienta-tion and must match the direction of water flow.This will allow for ease of service to remove any installa-tion debris or service required due to extended hard waterconditions.

Note: Take care during soldering to avoid debris orsolder from lodging in the check valve.Note: It is critical to follow the piping configurationshown. Maintain a minimum distance of 12” abovethe CAF/AH. This will minimize thermal siphoning inthe combo system.

* It should be noted that problems have been observed when using the sidetappings on certain water heaters; therefore, it is strongly recommended to use the topwater tappings as indicated in Figure 1 to minimize thermal siphoning and relatedissues.

WaterHeater

CheckValve

ToHouse

CAForAH

Min. 12" (305 mm) above top of

CAF / AH12"

WaterHeater

CAForAH

CheckValve

Min. 12" (305 mm)above top of

CAF / AH

ToHouse

12"

Figure 1

Figure 2

Page 7: Air Handle

7

Expansion TanksExpansion tanks are required in addition to a Check Valvefor Closed Systems because pressure is created when wateris heated in the water heater.The expansion tank has an air bladder which will contract torelieve pressure in the system. The tank should always beconnected to the cold water piping between the water heatershut off valve and the cold water inlet to the water heater.

Anti-Scald ValveAn anti-scald valve is required when the water heater ther-mostat is set above 140°F (60°C). Also, an anti-scald valvemay be required for all installations by the “authority hav-ing jurisdiction”. The valve is placed in the hot water supplypiping from the water heater downstream of the heatingloop connection and upstream of any domestic hot waterconnection.The purpose of the valve is to limit the maximum tempera-ture available for domestic hot water by mixing hot waterfrom the water heater with cold water from the municipalsupply.The Anti-Scald valve must be thermostatically controlledand approved to the ASSE standard No. 1016 and 1017 foruse as an anti-scald device.

Plumbing

WATER HEATER

DOMESTIC HOT WATER

SUPPLY AIR

BLOWER

HEATING COIL

CHECKVALVE

RETURN AIR

COLD WATER INLET

ANTI-SCALD VALVE (WHEN REQUIRED)

VALVE (shut off)

VALVE (shut off)

VALVE (shut off)

VALVE (balancing)

COOLING COIL(OPTIONAL)

DRAINVALVE

EXPANSION TANK OR OTHER MEANS

(WHEN REQUIRED)

CHECKVALVE

Closed Loop System

Time to Scald(1st degree burns)

Temperature Time

120°F (49°C) 8 min.

130°F (54°C) 20 sec.

140°F (60°C) 3 sec.

160°F (71°C) <1 sec.

ConventionalCooling Coil(Not availablethrough Airia)

Page 8: Air Handle

Valves(a) Located on the cold water side of the Heater.

This valve has the ability to isolate the hot water(domestic and space heating) from the household coldwater supply. Every water heater requires this valveregardless of space heating use.

(b) Located on the hot water supply side of the heatingloop, downstream of its connection to the domesticwater.

(c) Located on the return side of the heating loop upstreamof its connection to the domestic cold water.

8

(a)

H C

(b)

(c)

Supply

Return

Plumbing

Ball Valve

The Ball Valve can be used as a shut off or drain valve.When in the open position, a full bore ball valve has verylittle resistance to flow, and these valves tend to be both theleast expensive and the least susceptible to seizing overtime. Do not use reduced bore ball valves as they are veryrestrictive to water flow.

Gate Valve

The Gate Valve can be used as a shut off or drain valve.When in the open position, there is very little resistance toflow. Gate valves tend to be less expensive than other typesof valves but are susceptible to chatter (noise) and malfunc-tion with age.

Globe Valve

The Globe valve can be used as a shut off, drain or throt-tling valve. Even in the open position, the valve is fairlyrestrictive to flow. It has a much greater equivalent length(resistance.) than the other types of valves.

Balancing (Throttling) Valve

The Balancing (Throttling) Valve is used to reduce thewater flow rate and thereby increase the water temperaturedrop. This is done to ensure proper activation of the waterheater thermostat.A Globe Valve could also be used for Balancing (Throttling)but has more resistance than the Balancing Valve.

These twovalves isolatethe heatingloop forservice orrepair.

Page 9: Air Handle

9

Call for Space HeatingThere are two thermostats controlling every combo system,the water heater thermostat (controlling the hot water tem-perature) and the room thermostat (controlling the room airtemperature).

When the room thermostat calls for heat, the circulationpump is activated. Hot water is then drawn from the top ofthe water heater through the air handler, and then returnedto the water heater.

Plumbing

WATER HEATER

DOMESTIC HOT WATER

SUPPLY AIR

BLOWER

CHECKVALVE

RETURN AIR

COLD WATER INLET

ANTI-SCALD VALVE (WHEN REQUIRED)

VALVE (shut off)

VALVE (shut off)

VALVE (shut off)

VALVE (balancing)

COOLING COIL(OPTIONAL)

DRAINVALVE

HEATING COIL

Open Loop System

HotWater Temperature DropThe water heater thermostat will initiate the water heater asrequired as long as there is a 20°F (11°C) temperature dropbetween the hot water supplied to the air handler and thereturning water.A temperature drop less than 20°F (11°C) can cause thewater heater thermostat not to initiate. This will result in alower hot water supply temperature or poor space heatingperformance with fluctuating domestic water temperatures.

Call for Domestic HotWater and Space HeatingWhen both return water from the space heating loop andnew cold water (replacing domestic water being used)enters the water heater, the mixed entering water is coolenough to activate the thermostat quickly. In this situation,the water heater must be capable of satisfying the combinedneed for domestic hot water and space heating at the sametime.

Plumbing components and systemconfiguration may vary from diagramsportrayed.

ATTENTIONChemicals (such as boiler systemadditives) cannot be added to a domestic hot water system.

ATTENTION

Page 10: Air Handle

10

Plumbing

Air SystemA circulation fan draws cool house air at approx. 70°F(21°C) from the return ductwork, forces it through the watercoil where it is heated, and then distributes it to the variousrooms of the house through the supply ductwork.

Water System PressuresWithin the water system of an Integrated Combo system,there are three terms that the designer/installer must under-stand. These are:• Head pressure• Water flow rate• Pressure drop

Head PressureHead pressure is the pressure created by the circulationpump to push water through the piping system. It is thispressure which is used to overcome the resistance to waterflow (friction) caused by the water pipe and fittings. It issimilar in concept to the external static pressure in an airduct system. Head pressure is measured in feet of water(millimeters of water).

Water Flow RateWater flow rate is the amount of water flowing in the sys-tem. It is directly related to the head pressure and theresistance to flow. Flow rate is measured in gallons perminute (liters per minute).

The circulation pump is factory installed within the air han-dler. The water flow rate will vary depending on the pumpsperformance and the head pressure (resistance) of the com-plete heating loop system.The piping and fittings used to connect the water heater andair handler must be sized to handle the volume of hot waterrequired by the air handler within the pressure limitations ofthe circulation pump. All piping, fittings solders, and fluxesmust be acceptable for use with domestic hot water.

Pressure Drop (PD)Pressure drop (PD) is the reduction in total pressure causedby components added to a piping system such as coils,valves, and fittings. The measurement of pressure drop isthe difference in pressure on the inlet side of the componentand the outlet side. Pressure drop is measured in feet ofwater (millimeters of water).When connecting the water lines for heating loop (air han-dler) to the domestic water system, the pipes should beconnected with a “tee” to the side of a vertical domesticwater pipe or the bottom of a horizontal domestic waterpipe. This is to help prevent air from entering the heatingloop. The connections should be as near as practical to thewater heater.

Water Pump Performance Specifications

NOTE

The vertical height of the heating loop does notimpact on the head pressure as the pressurerequired to push the water up the vertical height isoffset by the weight of the water in the vertical dropon the other side of the heating loop.

16

14

12

10

8

6

4

2

0

Capacity on U.S. gpm

S2 and S4 Models

1 2 4 6 8 10 12

Tota

lHea

din

Fee

t

L2 and L4 Models

1 2 4 6 8 10 12 14 16 18 20

16

14

12

10

8

6

4

2

0

Capacity on U.S. gpm

Tota

lHea

din

Fee

t

Page 11: Air Handle

11

Air Handler Output CapacityThere are four factors that will significantly affect the heat-ing output of the air handler.They are:• Hot water supply temperature (EWT)• Hot water flow rate (GPM)• Air Handler return air temperature• Air Handler air flow rate (CFM)HotWater Supply TemperatureThe hot water supply temperature is controlled by the waterheater thermostat. This is set by the installing contractor toprovide the required temperature at the hot water outlet ofthe water heater.The hot water supply temperature is typically 140°F (60°C).If this temperature must be increased to achieve higher out-puts from the furnace an anti-scald valve must be used toprevent domestic hot water temperatures above 140°F(60°C). The manufacturer of the Hot water Tank should beconsulted for temperatures higher than 140°F (60°C).It is important that a warning label be placed near the waterheater thermostat telling the homeowner not to change thethermostat setting. The label is included with the furnace.

HotWater Flow RateThe hot water entering the water coil is the source of heat tothe air handler. The effect of changing the amount of waterentering the coil is the same as changing the water tempera-ture. As water flow is reduced, the output of the air handlerand the air temperature rise will both be lowered.

Air Handler Return Air TemperatureThe return air temperature entering the air handler isapprox. 60°F (33°C) below the hot water inlet temperature.If the return air temperature entering the air handler isreduced, more heat transfer will occur and the output of theair handler will increase.

Air Handler Air Flow RateThe air entering the air handler can only be warmed by thetemperature difference between the hot water and the coolair. As the volume (CFM (L/s)) of air is reduced, the amountof heat which can be transferred is also reduced.

Air Handler Temperature RiseIn a fuel fired furnace, the combustion gases can be 1000°F(538°C) above the return air temperature. These units typi-cally have a temperature rise from 50°F (10°C) to 90°F(32°C) and therefore delivers air at the diffuser at 120°F(49°C) to 160°F (71°C).

With an Integrated Combo System, the hot water tempera-ture is approx. 130°F (54°C) which is 60°F (15.5°C) abovethe return air temperature. These units typically have a tem-perature rise of 35°F (2°C) to 40°F (4°C) and thereforewould deliver air at the diffuser at approximately 105°F(40.5°C) to 110°F (43°C).

RoomThermostatThe room thermostat controls both the watercirculation pump and the air circulation fan. It should be ona centrally located, inside wall away from any source ofheat such as diffusers, appliances and direct sunlight.

Energy Saving RoomThermostatA set back thermostat or “smart stat” can be used with acombo system, but care must be taken in the timing of thetemperature changes. The timing of morning warm upshould be early enough that the desired air temperature hasbeen reached before the people begin to use domestic hotwater. The highest demand for space heating is during themorning warm up and the highest demand for domestic hotwater is during morning showers. Even if the water heateris properly sized, it may not be able to meet this combinedload. Therefore, large set backs should be avoided.

Design vs. Field ConditionsThe factors discussed between design parameters and actualfield conditions can impact greatly on output capacity.Therefore, it is important to do a thorough and completecommissioning of the integrated combo system to ensurethe design parameters are met.

PipingThe hot water piping between the hot water tank and the AirHandler should be new copper type, and should not be treat-ed with chemicals, sealant or anything else, that willinterfere with the purity of the potable water. Only non-lead,low temperature solder is permitted for sealing copperjoints.Where possible the length of pipe should not exceed 200'total equivalent length. Any piping running through uncon-ditioned space must be insulated to prevent heat loss, andpossible freezing of the line.Look inside the furnace and locate the pump. Attach the"Hot Water In" (Supply) to the pipe running to the pump.Attach the "Hot Water Out" (Return) to the pipe running tothe coil. Do not reverse these lines, as this will cause theunit to malfunction.For piping conventional water heaters, connections to andfrom the Air Handler to the water tank should be made atthe point where the pipes leave the tank vertically. A "T" fit-ting used in each vertical line, with the Air Handler pipingconnected to the horizontal side of this fitting, will workbest in avoiding air locks in the circulation pump of the fur-nace.*�ote: Remove shipping block from underneath pump anddiscard.

Plumbing

NOTEAlthough the water in the combo system is pressurized bythe domestic water system the pump is required to createwater flow in the heating loop. The domestic water systemapplies the same pressure to the supply and return sidesof heating loop.

Page 12: Air Handle

This manual gives the contractor guidelines for installingthe LIFEBREATH Air Handler. All national and localcodes relating to this type of equipment must be followed.

Locating The UnitThe Air Handler is designed to be installed vertically, in aconditioned space, where the surrounding temperaturedoes not fall below 50°F (10°C). Attic installations are notrecommended. Typically the unit is installed in a mechani-cal area of the basement, or other partitioned mechanicalroom, elsewhere in the home.A location close to an outside wall is recommended, as theventilation supply and exhaust portion will need to be duct-ed to the outside air. Sufficient clearance around the unit isrequired for service of the filter, heat recovery core andcomponents. As a rule this unit should be installed adjacentto the hot water heater. If this is not possible, or if the pip-ing layout is complex, the total head pressure on the pumpshould be calculated.

DuctingThe duct sizing for the furnace section can be determinedusing HRAI Residential Air System Design Manual,SMACNA, or any other industry-recognized manuals.�ote: "Combo units" normally deliver air at approx.110°F (43°C), and therefore may require larger than nor-mal ductwork. When installing the Air Handler as areplacement unit on a retrofit application, always calcu-late the size of duct that is there.Any ductwork running through unconditioned space mustbe sealed properly and insulated to prevent heat loss. Alllocal codes must be followed in determining the amount ofinsulation needed.

Duct ConnectionsPenetrations from sheet metal screws used to fasten theductwork to the cabinet of the unit should only be placedinto the duct flange provided. This is to avoid contact anddamage of the heating/air conditioning coils and internalwiring.

12

Installation

Page 13: Air Handle

13

R W Y G

A/C Unit

Thermostat

To “Y”

To “C”

T30

SW1

T29T28REDOGYWRCT25

T17

K3 K4 K5

COM

N.O.

K6

COM

N.O.

COM

N.O.

COM

N.O.

T18 T19

T20

RELAYFEED

T43

SPARE

T26 T27 GRNYEL

P2 P3

R 24Vac12Vac Com Thermostat DETC

Defrost

Freeze

Fan Hi Fan Med Fan Low

ON

P1

C4 C3

K7 K1 K2K8

8 7 6 5 4 3 2 1

C2 C1

T31

T32

T33

T34

T35

T36

T37

T38

T39

T40

T41

T42

Contact 1

N.0. COM N.C. N.0. COM N.C. N.0. COM N.C. N.0 . COM

Contact 2 Contact 3 Contact 4

Digital Controls

DIP SWITCHES TO BEADJUSTED BY QUALIFIEDTECHNICIANS ONLY. N.C

SEUL UN TECHNICIENQUALIFIÉ PEUT AJUSTÉ LESCOMMUTATEURS DIP.

CHASSIST44

T21 T22 T23 T24

AUX 1 AUX 2

T3 T4 T5 T6

Line/Ligne

T1 T2 T13 T14 T15 T16

Neutral/NeutreT11 T12

2 AMPS

Standard 24 VoltThermostatConnection(Thermostats are not avail-able through Airia)

Thermostat Heat Anticipator SettingsMechanical Thermostats - start at .5 amp and may need tobe increased depending upon the residual heat left in thehydronic coil and duct work.Electronic Thermostats - to be set on electric style heat.

Off Season Circulation TimerWater is periodically circulated through the space heatingloop during the summer and other periods of infrequent use.The concern is that water which remains stationary in theheating loop during the summer may be less than desirableas domestic hot water when it is returned to the water heaterat system startup in the fall.

Basic FunctionsC - CommonR - 24 volt SupplyW - Medium or High Fan Relay with Circulation Pump

(The speed depends on Dip Switch # 6 setting)Y&G- Medium or High Fan Relay

(The speed depends on Dip Switch # 7 setting)G - Low Speed Fan RelayO - High Speed Fan Relay with Circulation Pump

Function and Controls Standard Motor

Standard Motor DIP Switch Settings(DIP #1-8 OFF is Factory Setting)

ON

87

65

43

21

DIP #2 to ON will disable theOff Season Circulation Timer

DIP #6 to ON will selectMedium Speed for heating(Factory setting is OFF for HighSpeed)

DIP #7 to ON will selectMedium Speed for coolingswitch (Factory setting is OFFfor High Speed)

Do not adjust any other DIP switches thanindicated above.

WARNING

Do not energize the Air Handler until theplumbing is connected and commissioned.Failure to do so will damage the pump.

WARNING

Page 14: Air Handle

14

Switch Setting

Adjust Switches

Both OFF

5 0N - 6 OFF

5 OFF - 6 ON

5 ON - 6 ON

Heat

Normal

Increase 15%

Decrease 15%

Normal

Cool

Normal

Increase 15%

Decrease 15%

Normal

Fan Speeds

Switch Setting

Heat Switches

Both OFF

3 0N - 4 OFF

3 OFF - 4 ON

3 ON - 4 ON

Fan Speeds

Heat

High

Med High

Med Low

Low

Switch Setting

Cool Switches

Both OFF

1 0N - 2 OFF

1 OFF - 2 ON

1 ON - 2 ON

Fan Speeds

Cool

High

Med High

Med Low

Low

Delay Switches are for future use - no function at this time

Note: Refer to individual specification pages for AirflowPerformance specifications. Above settings correspond

to DIP switch settings on the ECM circuit board only.Do not adjust DIP switches on MAIN Circuit Board.

T31

Conta

N.0. COMDigital Controls

R W Y GA/C Unit

Thermostat

To “Y”

To “C”

T30T29T28REDOGYWRCT25

T17

K3

COM

N.

K6

COM

N.O.

T26 T27 GRNYEL

P2 P3

R 24Vac12Vac Com Thermostat DETC

Defrost

Freeze

Fan Hi

P1

C4 C3

K8

T31

Cont

N.0. CODigital Controls

DIP SWITCHES TO BEADJUSTED BY QUALIFIEDTECHNICIANS ONLY.

SEUL UN TECHNICIENQUALIFIÉ PEUT AJUSTÉ LESCOMMUTATEURS DIP.

CHASSIS

T44

T3 T4 T5 T6

Line/Ligne

T1 T2 T13 T14 T15 T16

Neutral/NeutreT11 T12

2 AMPS

SW1

ON

8 7 6 5 4 3 2 1

T21 T22 T23 T24

AUX 1 AUX 2

Standard 24 VoltThermostatConnection(Thermostats are not avail-able through Airia)

Basic Functions• Thermostat fan switch will control low speed fanoperation

• Call for heating - high speed• Call for cooling - high speed

Function and Controls ECM Motor

ECM Motor DIP Switch Settings

Do not energize the Air Handler until theplumbing is connected and commissioned.Failure to do so will damage the pump.

WARNING

DIP switches #6 & #7 must be ON for the ECM motor to function (factory setting).

ATTENTION

ECM Motor DIP Switch Settings(DIP 6&7 ON is Factory Setting)

ON

87

65

43

21

DIP #2 to ON will disable theOff Season Circulation Timer

Factory Setting

Do not adjust any other DIP switches thanindicated above.

WARNING

COOL

1 2 3 4 5 6 7 8

HEAT ADJUST DELAY

COOL HEAT ADJUST DELAY

SW

1

off

on

T2

T1

Thermostat Heat Anticipator SettingsMechanical Thermostats - start at .5 amp and may need to beincreased depending upon the residual heat left in the hydroniccoil and duct work.Electronic Thermostats - to be set on electric style heat.

Page 15: Air Handle

15

Aircom Relays

The Aircom circuit board has three available “dry contact”relays. Contact 3 is not available.

Contact 1This relay is a dry contact (no power supplied from board).The relay switches upon a call for heat.This relay can be used to switch the heat demand signal forboiler operation.Power (if required) must be supplied to common from anexternal source.Max. Voltage - 120 voltsMax. Amperage - 10 ampsMaximum 115V 10 amp resistive load.

T30T29T28

T43

SPARE

P2 P3

F2 MAX 2 amp

R 24Vac

Defrost

Freeze

K7 K1 K2K8

T31

T32

T33

T34

T35

T36

T37

T38

T39

T40

T41

T42

Contact 1

N.0. COM N.C. N.0. COM N.C. N.0. COM N.C. N.0 . COM

Contact 2 Contact 3 Contact 4

N.C

BoilerContact

T30T29T28

T43

SPARE

P3

MAX 2 amp

R 24Vac

Defrost

K7 K1 K2K8

T31

T32

T33

T34

T35

T36

T37

T38

T39

T40

T41

T42

Contact 1

N.0. COM N.C. N.0. COM N.C. N.0. COM N.C. N.0 . COM

Contact 2 Contact 3 Contact 4

N.C

HumidifierContact

Contact 2 and 4These relays are dry contacts (no power supplied fromboard). The relays switch whenever the CAF blower motoris operating.These relays can be used to interlock Humidifiers, AirCleaning Equipment, etc.Power (if required) must be supplied to common from anexternal source.Max. Voltage - 120 voltsMax. Amperage - 10 amps

In order for any appliance to work properly it must be setup and tested by a knowledgeable technician.The following conditions must be met prior tostart-up1. Ensure that connecting water lines are purged and free ofdebris.Caution: solder or other debris may cause the furnacepump or check valve to malfunction.

2. Blower wheel rotates freely inside its housing.3. Wiring connections are tight.4. All duct and pipe connections are sealed.5. Check that styrene block is removed from under pump.6. Front access door is on tight.7. Fan speed selection:a) Heating/Cooling - factory setting is at high speed andcan be changed in the electrical box to medium-high ormedium if required.

Once the necessary connections have been made,follow the Air Handler Start-Up Procedure:1. Close shut-off valves separating the Air Handler from thewater heater.

2. Set up water heater according to manufacturer's instruc-tions.

3. Purge air from unit. To do so, open the supply shut-offvalve to the furnace. Attach a garden hose to drain valve,and drain water until you get a continuous flow. Closethe drain valve and purge the pump. To purge the airfrom the pump, turn the large screw on the face of thepump counterclockwise until water leaks out, then tight-en. Open the supply shut-off valve.

4. Turn on power supply to Air Handler. Caution: blowermay start to operate at low speed.

5. Switch the room thermostat to heat. The thermostatshould be set higher than the current room temperature inorder to energize the pump and commence the heatingcycle. (If the pump does not start, or the Air Handler isnot producing heat, refer to the Troubleshooting Sectionin this manual.

6. Set room thermostat at desired temperature setting.

Start-Up Procedure

Page 16: Air Handle

16

Lack of heat1. Check that the room thermostat is set to the desiredtemperature.

2. Confirm the units have power and the shut-off valvesare open.

3. Ensure there is power to the unit and that the pump isworking. If the pump is not working properly it may bestuck. Disconnect power and remove screw in center faceof the pump. Using a screwdriver, turn the pump shaftseveral times to free it from sticking. Replace center-screw and re-connect power. If pump still fails to start, itmay require replacement.

4. Confirm that the hot water heater is working and that hotwater is entering the Air Handler.

5. Make sure your water heater is sized large enough forheat load of house and for domestic hot water use.

6. Air may still be in the water lines. If so, re-purge thesystem according to the start up procedure.

7. Confirm that the inlet and outlet pipe connections are notreversed.

8. Ensure that there are no other restrictions in the waterlines, such as faulty valves, or debris.

Pump is noisyPumps can become noisy when air remaining in the linesinterfere with their operation. If this occurs re-purge thesystem as indicated in the Start-Up Procedure.

During cooling cycle, hot water circulates throughthe coilIf the check valve inside the cabinet is stuck in the openposition, hot water may infiltrate the heating coil. Thisoccurs when the hot pipes are not capped-off duringinstallation or service and foreign debris enters the piping.This debris can settle under the check valve seat and permithot water to flow into the coil. The problem can becorrected by repeatedly flushing the heating loop until it isclean.

Troubleshooting

Page 17: Air Handle

17

ConfigurationU - Upflow - Return Air off Left or Right sideD - Downflow models are unavailable for Air Handlers

Hydronic Coil Size

S2A - Small Coil - 2 Row CoilS4A - Small Coil - 4 Row Coil L2A - Large Coil - 2 Row CoilL4A - Large Coil - 4 Row CoilL2B - Large Coil - 2 Row Coil

24 - 2 tons30 - 2.5 tons36 - 3.0 tons48 - 4.0 tons*Cooling coils not available from Airia

Motor ConfigurationP16 - Standard PSC Motor 120V/60HzE16 - Upgrade ECM Motor 120V/60Hz

Example Model Number AH - U - S2A - 24 - P16

* CFM (High Speed)Cooling Capacity

Model ConfigurationAH - Airhandler (No HRV)Refer to CAF (Clean Air Furnace) specifications ifa built-in HRV is required.

Available Air Handler Models

AH-U-S2A-30-P16(E16)AH-U-S4A-24-P16(E16)AH-U-L2A-36-P16(E16)AH-U-L4A-36-P16(E16)AH-U-L2B-48-P16(E16)

Refer to individual specifications pages forHydronic Coil and Blower outputs andconfigurations.

Model Number Nomenclature Breakdown

Refer to individual specification pages for Hydronic Coil and Blower outputs andconfigurations.

ATTENTION

Page 18: Air Handle

Model AH-U-S4A-24-P16

WarrantyUnits carry a five year replacement parts warranty on allcomponents.

Side Front

29.5"(749 mm)

19"(483 mm)

32.5"(826 mm)

14"(356 mm)

Top

29.5"(749 mm)

19"

16"(406mm)

Supply Air17.25"(438 mm)

22"(559 mm)

Return AirBlower Section

SERVICE CLEARANCE 1'(305 mm)

SERVICE CLEARANCE 3'(914 mm)

(483 mm)

Filters 1" (25 mm) pleated in return plenum side.Case Prepainted galvanized steel for superior corrosion resistance.

Dimensions & Clearances

�ote: Return plenum openingavailable off either side ofcabinet. All units conformto CSA and UL Standards

[email protected]

18

Model AH-U-S4A-24-P16

Voltage 120 VAC 60 Hz

Hp 1/3

Amps (total) 8

Water 1/2" (13 mm) CopperConnections Soldered Connection

Airflow (High).25 in wg 1030 CFM.5 in. wg 890 CFM

Net Weight 111 lbs. (50.3 kg)

Shipping 130 lbs. (59 kg)Weight

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

Page 19: Air Handle

[email protected]

19

WarrantyUnits carry a five year replacement parts warranty on allcomponents.

Top

29.5”(749 mm)

19"(483 mm)

22.25"(565 mm)

Supply Air17.25"

(438 mm)

Side Front

29.5"(749 mm)

19"(483 mm)

32.5"(826 mm)

14"(356 mm)

22"(559 mm)

Return AirBlower Section

SERVICE CLEARANCE 1' (305 mm)

SERVICE CLEARANCE 3' (914 mm)

Filters 1" (25 mm) pleated in return plenum side.Case Prepainted galvanized steel for superior corrosion resistance.

Dimensions & Clearances

Model AH-U-L4A-36-PI6

Voltage 120 VAC 60 Hz

Hp 1/2

Amps (total) 10.6

Water 3/4" (19 mm) CopperConnections Soldered Connection

Airflow (High).25 in wg 1350 CFM.5 in. wg 1180 CFM

Net Weight 121 lbs. (54.9 kg)

Shipping 140 lbs. (63.6 kg)Weight

Note: Return plenum opening

available off either side of

cabinet. All units conform

to CSA and UL Standards

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

Model AH-U-L4A-36-P16

Page 20: Air Handle

WarrantyUnits carry a five year replacement parts warranty on allcomponents.

Side Front

29.5"(749 mm)

19"(483 mm)

32.5"(826 mm)

14"(356 mm)

Top

29.5"(749 mm)

19"

16"(406mm)

Supply Air17.25"(438 mm)

22"(559 mm)

Return AirBlower Section

SERVICE CLEARANCE 1'(305 mm)

SERVICE CLEARANCE 3'(914 mm)

(483 mm)

Filters 1" (25 mm) pleated in return plenum side.Case Prepainted galvanized steel for superior corrosion resistance.

Dimensions & Clearances

1280120010001020

3 GPM

130 140 150 160 170 180Water Temp.

29.828.926.526.8

35.033.931.131.4

40.038.835.636.2

45.143.840.240.7

CFM

@.2

5"W

G 50.348.944.845.3

55.853.949.450.0

4 GPM

130 140 150 160 170 180

31.830.928.228.3

37.336.133.033.1

42.841.437.837.9

48.346.842.642.9

53.952.147.447.8

59.457.452.352.8

5 GPM

130 140 150 160 170 180

33.432.229.229.4

38.937.734.234.6

44.843.239.239.6

50.648.744.244.7

56.254.249.249.8

62.259.854.254.9

10751040975880

27.527.326.325.0

32.331.930.829.2

37.036.435.333.5

41.641.039.838.0C

FM@

.5"W

G

46.645.844.142.2

51.150.448.846.5

S2A-30 Coil Output Chart (1000's of BTUH)

29.028.727.726.4

34.133.632.831.0

39.138.437.335.4

44.243.442.039.9

49.348.546.944.5

54.253.351.649.1

30.529.828.827.4

35.435.033.832.0

40.840.138.436.6

45.945.143.541.3

51.150.248.345.9

56.555.253.350.5

Note: Return plenum opening

available off either side of

cabinet. All units conform

to CSA and UL Standards

Model AH-U-S2A-30-P16Voltage 120 VAC 60 Hz

Hp 1/3

Amps (total) 8

Water 1/2" (13 mm) CopperConnections Soldered Connection

Airflow (High).25 in wg 1280 CFM.5 in. wg 1075 CFM

Net Weight 111 lbs. (54.9 kg)

Shipping 130 lbs. (59 kg)Weight

[email protected]

20

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

Model AH-U-S2A-30-P16

Page 21: Air Handle

[email protected]

21

WarrantyUnits carry a five year replacement parts warranty on allcomponents.

Top

29.5”(749 mm)

19"(483 mm)

22.25"(565 mm)

Supply Air17.25"

(438 mm)

Side Front

29.5"(749 mm)

19"(483 mm)

32.5"(826 mm)

14"(356 mm)

22"(559 mm)

Return AirBlower Section

SERVICE CLEARANCE 1' (305 mm)

SERVICE CLEARANCE 3' (914 mm)

Filters 1" (25 mm) pleated in return plenum side.Case Prepainted galvanized steel for superior corrosion resistance.

Dimensions & Clearances

140213571090731

3 GPM

130 140 150 160 170 180Water Temp.

35.134.631.225.5

41.040.436.529.5

47.046.441.833.8

53.152.347.138.1

CFM

@.2

5"W

G 59.158.252.442.4

65.164.257.846.7

4 GPM

130 140 150 160 170 180

37.737.133.226.4

44.143.438.830.9

50.649.844.435.4

57.056.150.139.9

63.562.555.844.4

70.068.961.448.9

5 GPM

130 140 150 160 170 180

39.538.834.527.2

46.245.440.331.8

52.952.046.236.4

59.758.752.041.0

66.465.357.945.6

73.271.963.850.2

122011751022705

32.932.830.224.7

38.537.835.328.9

44.243.340.433.1

49.848.945.637.3C

FM@

.5"W

G

55.454.450.841.5

61.160.055.945.7

L2A-36 Coil Output Chart (1000's of BTUH)35.234.532.025.9

41.240.437.530.2

47.246.242.934.6

53.252.148.439.0

59.258.053.843.4

65.363.959.347.8

36.736.033.326.6

43.042.038.931.1

49.248.144.535.6

55.454.350.240.1

61.760.455.844.6

68.066.561.549.1

Model AH-U-L2A-36-P16Voltage 120 VAC 60 Hz

Hp 1/2

Amps (total) 10.6

Water 1/2" (13 mm) CopperConnections Soldered Connection

Airflow (High).25 in wg 1402 CFM.5 in. wg 1220 CFM

Net Weight 121 lbs. (50.3 kg)

Shipping 140 lbs. (59 kg)Weight

Note: Return plenum opening

available off either side of

cabinet. All units conform

to CSA and UL Standards

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

Model AH-U-L2A-36-P16

Page 22: Air Handle

[email protected]

22

WarrantyUnits carry a five year replacement parts warranty on allcomponents.

Top

29.5"(749 mm)

19"(483 mm)

22.25"(565 mm)

Supply Air17.25"(438 mm)

Side Front

29.5"(749 mm)

19"(483 mm)

36.5”(927 mm)

18"(457 mm)

22"(559 mm)

Return Air Blower Section

SERVICE CLEARANCE 1' (305 mm)

SERVICE CLEARANCE 3' (914 mm)

Filters 1" (25 mm) pleated in return plenum side.Case Prepainted galvanized steel for superior corrosion resistance.

Dimensions & Clearances

196718681728

3 GPM

130 140 150 160 170 180Water Temp.

39.638.3

46.344.9

53.151.4

59.958.1

CFM

@.2

5"W

G

66.764.7

73.671.3

4 GPM

130 140 150 160 170 180

43.141.6

50.548.7

55.855.9

65.263.0

72.770.2

80.177.3

5 GPM

130 140 150 160 170 180

45.543.9

53.351.3

61.158.8

68.866.3

76.773.8

84.581.4

163916181575

37.537.336.940.4

43.943.743.247.3

50.350.049.554.2

56.856.555.861.1

CFM

@.5

"WG

63.362.962.268.1

69.769.368.675.1

L2B-48 Coil Output Chart (1000's of BTUH)40.740.439.944.1

47.647.246.751.6

54.554.253.559.2

61.561.160.366.7

68.568.067.274.3

75.575.074.081.9

42.842.541.946.7

50.049.749.054.6

57.356.956.162.5

64.664.263.370.5

71.971.570.578.5

79.378.777.786.6

Model AH-U-L2B-48-P16Voltage 120 VAC 60 Hz

Hp 3/4

Amps (total) 12.2

Water 1/2" (13 mm) CopperConnections Soldered Connection

Airflow (High).25 in wg 1967 CFM.5 in. wg 1639 CFM

Net Weight 135 lbs. (61.2 kg)

Shipping 155 lbs. (70.3 kg)Weight

Note: Return plenum opening

available off either side of

cabinet. All units conform

to CSA and UL Standards

Date: ___________________________________________

Tag: _____________________Qty:___________________

Project: _________________________________________

Engineer: _______________________________________

Contractor: ______________________________________

Supplier: ________________________________________

Quote#: _________________________________________

Submitted by: ____________________________________

Model AH-U-L2B-48-P16

Page 23: Air Handle

23

Page 24: Air Handle

24

Page 25: Air Handle

25

Page 26: Air Handle

26

Page 27: Air Handle

27

Page 28: Air Handle

28

Page 29: Air Handle

29

Tran

sfo

rmer

12/2

4Vac

Tran

sfo

r-m

ateu

r12

/24

VC

A

Sta

ndar

dM

otor

CA

F/A

irH

andl

erW

irin

gD

iagr

am

Sch

éma

decâ

blag

ed’

unm

oteu

rde

FAP

/App

arei

lde

trai

tem

entd

el’a

irst

anda

rdO

pti

on

alP

um

pP

om

pe

Facu

ltat

ive

Fan

Mo

tor

Mo

teu

rd

uve

nti

late

ur

Doo

rS

witc

hIn

terr

upte

urde

port

e

BLA

CK

BLA

CK

WH

ITE

GN

D

WH

ITE

BLU

E

BLA

CK

RE

D

YE

LLO

W

RE

D

WH

ITE

BLU

EBLA

CK

BLA

CK

N.O.

Norm

ally

open

Norm

alem

ento

uver

t

N.C.

Norm

ally

clos

edNo

rmal

emen

tfer

COM

Com

mon

Com

mun

T#Te

rmin

al

P#Pl

ugPr

ise

K#Re

lay

Rela

is

F#Fu

seFu

sibl

e

SW#

Switc

hCo

mm

utat

eur

BLA

CK

BLA

CK

WH

ITE

BLU

E

60-C

AF

-AH

-01

TH

ER

MIS

TOR

TH

ER

MIS

TAN

CE

54

32

1

T30

T29

T28

RE

DO

GY

WR

CT2

5

T17

K3

K4

K5

CO

M

N.O

.

K6

CO

M

N.O

.

CO

M

N.O

.

CO

M

N.O

.

T18

T19

T20

RE

LAY

FEE

D

T43

SPAR

ERÉ

SERV

E

T26

T27

GR

NY

EL

P2

P3

R24

Vac

12Va

cC

omD

ET

C

DefrostDégivrageFreeze

CongélationFa

nH

i/Ven

t.ha

utFa

nM

ed/V

ent.

moy

enFa

nLo

w/V

ent.

bas

P1

C4

C3

K7K1

K2K8

C2

C1

T31

T32

T33

T34

T35

T36

T37

T38

T39

T40

T41T42

Con

tact

1

N.0

.C

OM

N.C

.N

.0.

CO

MN

.C.

N.0

.C

OM

N.C

.N

.0.C

OM

Con

tact

2C

onta

ct3

Con

tact

4

Dig

ital

Co

ntr

ols

/C

on

trô

les

nu

mér

iqu

es

N.C

RW

YG

A/C

Un

itU

nit

éA

/C

Th

erm

ost

atTo

/Ver

s“Y

To/V

ers

“C”

Ele

ctri

cal

con

tro

lp

anel

serv

ice

by

elec

tric

ian

on

ly.

Dis

con

nec

tel

ectr

ical

sup

ply

pri

or

tose

rvic

ing

.Im

pro

per

wir

ing

may

resu

ltin

dam

age

toth

isu

nit

.U

seco

pp

ersu

pp

lyw

ires

.

CA

UT

ION

En

tret

ien

du

pan

nea

ud

eco

ntr

ôle

élec

triq

ue

par

un

élec

tric

ien

seu

lem

ent.

Co

up

ezl’a

limen

tati

on

élec

triq

ue

avan

td

ep

rocé

der

àl’e

ntr

etie

n.

Un

câb

lag

ein

adéq

uat

po

urr

ait

end

om

mag

erce

tap

par

eil.

Uti

lisez

des

câb

les

de

cuiv

re

AT

TE

NT

ION

Alim

en-

tatio

rela

is

Terr

e

Bla

ck=

no

ir

Wh

ite

=b

lan

c

Red

=ro

ug

e

Blu

e=

ble

u

Yello

w=

jau

ne

SW1

ON

87

65

43

21

DIP

SW

ITC

HE

ST

OB

EA

DJU

ST

ED

BY

QU

AL

IFIE

DT

EC

HN

ICIA

NS

ON

LY.

SE

UL

UN

TE

CH

NIC

IEN

QU

AL

IFIÉ

PE

UT

AJU

ST

ÉL

ES

CO

MM

UTA

TE

UR

SD

IP

CH

AS

SIS

T44

T3T4

T5T6

Line

/Lig

ne

T1T2

The

rmos

tat

T13

T14

T15

T16

Neu

tral

/Neu

tre

T11

T12

T21

T22

T23

T24

AU

X1

AU

X2

2A

MP

S

Standard MotorWiring Diagram

Do not initiate power before plumbing iscommissioned.

WARNING

Page 30: Air Handle

30

Tran

sfor

mer

Tran

s-fo

rmat

eur

12/2

4Vac

EC

M-C

AF/

Air

Han

dler

Wir

ing

Dia

gram

/

Sch

éma

decâ

blag

eFA

P/A

ppar

eild

etr

aite

men

tde

l’air

-m

oteu

com

mut

atio

nél

ectr

oniq

ueE

CM

Pum

ppo

mpe

WH

ITE

WHITE

BLA

CK

TAN

TAN

PUR

PLE

PUR

PLE

12

34

56

78

CO

OL

HEA

TAD

JUST

DELA

Y

BLA

CK

BLA

CK

WH

ITE

WH

ITE

BR

OW

N

BR

OW

N

RED

RED

REDBLA

CK

/YEL

LOW

BLA

CK

/YEL

LOW

BLU

E

BLU

E

GR

EEN

GR

EEN

YELL

OW

YELL

OW

BLA

CK

BLU

E

WH

ITE

RED

Doo

rSw

itch

Inte

rrup

teur

depo

rte

BLA

CK

BLA

CK

WH

ITE

GN

D

BLA

CK

BLA

CK

BLUE60

-CA

F-0

1-E

CM

0207

SW1

offon

12

34

56

78

910

1112

1314

1516

54

32

1

Mol

exC

onne

ctor

s/C

on

nec

teu

rsM

ole

x

Jum

per/

cava

lier

(120

VOLT

Onl

y/se

ulem

ent)

T2 T1

THE

RM

ISTO

R

Fan

Mot

or/M

oteu

rdu

vent

ilate

ur

CR

WW

2Y

Y1G

O

EC

MTE

RM

INA

LB

LOC

K(T

BM

)/P

laq

uet

teà

bo

rnes

EC

M

T30

T29

T28

RE

DO

GY

WR

CT2

5

T17

K3

K4

K5

CO

M

N.O

.

K6

CO

M

N.O

.

CO

M

N.O

.

CO

M

N.O

.

T18

T19

T20

RE

LAY

FEE

D

T43

SPA

RE

SE

RV

E

T26

T27

GR

NY

EL

P2

P3

R24

Vac

12Va

cC

omD

ET

C

Defrost

Freeze

Fan

Hi/V

ent.

haut

Fan

Med

/Ven

t.m

oyen

Fan

Low

/Ven

t.ba

s

P1

C4

K7

K1

K2

K8

C2

C1

T31

T32

T33

T34

T35

T36

T37

T38

T39

T40

T41T42

Con

tact

1

N.0

.C

OM

N.C

.N

.0.

CO

MN

.C.

N.0

.C

OM

N.C

.N

.0.C

OM

Con

tact

2C

onta

ct3

Con

tact

4

Dig

ital

Co

ntr

ols

/C

on

trô

les

nu

mér

iqu

es

N.C

RW

YG

A/C

Uni

tU

nité

A/C

Ther

mos

tat

To“Y

To“C

ORANGE

N.O.

Norm

ally

open

Norm

alem

ento

uver

t

N.C.

Norm

ally

clos

edNo

rmal

emen

tfer

COM

Com

mon

Com

mun

T#Te

rmin

al

P#Pl

ugPr

ise

K#Re

lay

Rela

is

F#Fu

seFu

sibl

e

SW#

Switc

hCo

mm

utat

eur

Ele

ctri

cal

con

tro

lp

ane

lse

rvic

eb

yel

ectr

icia

no

nly

.D

isco

nn

ect

elec

tric

al

sup

ply

pri

or

tose

rvic

ing

.Im

pro

per

wir

ing

may

resu

ltin

dam

age

toth

isu

nit

.U

seco

pp

ersu

pp

lyw

ires

.

CA

UT

ION

En

tret

ien

du

pan

nea

ud

eco

ntr

ôle

élec

triq

ue

par

un

élec

tric

ien

seu

lem

ent.

Co

up

ez

l’alim

enta

tio

nél

ectr

iqu

eav

ant

de

pro

céd

er

àl’e

ntr

etie

n.

Un

câb

lag

ein

adéq

ua

tp

ou

rrai

ten

do

mm

ager

cet

app

arei

l.U

tilis

ezd

escâ

ble

sd

ecu

ivre

.

AT

TE

NT

ION

Bla

ck=

no

ir

Wh

ite

=b

lan

c

Red

=ro

ug

e

Blu

e=

ble

u

Yello

w=

jau

ne

Tan

=h

avan

e

Pu

rple

=p

ou

rpre

Bro

wn

=b

run

Alim

en-

tatio

rela

is

CO

OL

FRO

IDH

EAT

CH

ALE

UR

ADJU

STRÉ

GLA

GE

DELA

YDÉ

LAI

Terr

e

DIP

SW

ITC

HE

ST

OB

EA

DJU

ST

ED

BY

QU

AL

IFIE

DT

EC

HN

ICIA

NS

ON

LY.

SE

UL

UN

TE

CH

NIC

IEN

QU

AL

IFIÉ

PE

UT

AJU

ST

ÉL

ES

CO

MM

UTA

TE

UR

SD

IP.

SW

1

ON

87

65

43

21

CH

AS

SIS

T44

T21

T22

T23

T24

AU

X1

AU

X2

T13

T14

T15

T16

Neu

tral

/Neu

tre

T11

T12

The

rmos

tat

2A

MP

S

T3T4

T5T6

Line

/Lig

ne

T1T2

C3

ECMWiring Diagram

Do not initiate power before plumbing iscommissioned.

WARNING

Page 31: Air Handle

31


Top Related