OUTDOOR SPLIT-SYSTEM HEAT PUMPMODELS:16 SEER - YZF, HC6B, HL6B SERIES18 SEER - YZH, HC8B, HL8B SERIES2 TO 5 TONS

INSTALLATION MANUAL®

LIST OF SECTIONSGENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2INDOOR EXPANSION DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7SYSTEM START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22WIRING DIAGRAM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

LIST OF FIGURESTypical Installation with Required Clearances . . . . . . . . . . . . . . . . . . .2Tubing Hanger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4Typical Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7Communications Harness Connection . . . . . . . . . . . . . . . . . . . . . . . . .8Communicating HP with Communicating Air Handler or Furnace . . . .8Communicating HP with Non-Communicating Air Handler or Furnace using Communicating Interface Control . . . . . . . . . . . . . . . . .8Multi-wire Terminal Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – Modulating Furnace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – Single Stage Furnace (Standard ECM) . . . . . . . . . . . . . . . . . . . . . . .11Thermostat Wiring – Single Stage Heat Pump (with YGVI control) –V/S Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – PSC Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Thermostat Wiring – Single Stage Heat Pump (with YGVI control) –V/S Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Thermostat Wiring – Two-Stage Heat Pump - Two-Stage Variable Speed Furnace . . . . . . . . . . . . . . . . . . . . . . . . . 15Thermostat Wiring – Two-Stage Heat Pump - Two-Stage Variable Speed Furnace . . . . . . . . . . . . . . . . . . . . . . . . . 16Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . . . . 19Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Modulating Furnace . . . . . . . . . . . . . . . . . . . . . . . . 20Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Wiring Diagram - Single Stage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23Wiring Diagram - 2 Stage with PSC Outdoor Fan Motor . . . . . . . . . 24Wiring Diagram - 2 Stage with ECM Outdoor Fan Motor . . . . . . . . . 25

LIST OF TABLESMaximum / Minimum Operating Limit Conditions . . . . . . . . . . . . . . . . .2 R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Defrost Initiate Curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

SECTION I: GENERALThe outdoor units are designed to be connected to a matching indoorcoil with sweat connect lines. Sweat connect units are factory chargedwith refrigerant for the smallest rated indoor coil plus 15 feet of fieldsupplied lines.Matching indoor coils require a thermostatic expansion valve. Therefrigerant charge may need to be changed for some indoor-outdoorunit combinations, elevation differences, or total line lengths. Refer toApplication Data covering “General Piping Recommendations andRefrigerant Line Length” (Part Number 247077).

SECTION II: SAFETYThis is a safety alert symbol. When you see this symbol onlabels or in manuals, be alert to the potential for personalinjury.

Understand and pay particular attention to the signal words DANGER,WARNING, or CAUTION.

DANGER indicates an imminently hazardous situation, which, if notavoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation, which, if notavoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation, which, if notavoided may result in minor or moderate injury. It is also used to

alert against unsafe practices and hazards involving only property dam-age.

WARNINGImproper installation may create a condition where the operation ofthe product could cause personal injury or property damage.Improper installation, adjustment, alteration, service or maintenancecan cause injury or property damage. Refer to this manual for assis-tance or for additional information, consult a qualified contractor,installer or service agency.

CAUTIONThis product must be installed in strict compliance with the enclosedinstallation instructions and any applicable local, state, and nationalcodes including, but not limited to building, electrical, and mechanicalcodes.

CAUTION R-410A systems operate at higher pressures than R-22 systems. Donot use R-22 service equipment or components on R-410A equip-ment. Service equipment Must Be Rated for R-410A.

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INSPECTIONAs soon as a unit is received, it should be inspected for possible dam-age during transit. If damage is evident, the extent of the damageshould be noted on the carrier’s delivery receipt. A separate request forinspection by the carrier’s agent should be made in writing. See LocalDistributor for more information.

Requirements For Installing/Servicing R-410A Equipment• Gauge sets, hoses, refrigerant containers, and recovery system

must be designed to handle POE oils, and the higher pressuresof R-410A.

• Manifold sets should be 800 PSIG high side and 250 PSIG lowside with 550 PSIG low side restart.

• All hoses must have a 700 PSIG service pressure rating.• Leak detectors should be designed to detect HFC refrigerant.• Recovery equipment (including refrigerant recovery containers)

must be specifically designed to handle R-410A.• An R-22 TXV (thermostatic expansion valve) must not be used.• A liquid-line filter drier is required on every unit.

LIMITATIONSThe unit should be installed in accordance with all National, State andLocal Safety Codes and the limitations listed below:

1. Limitations for the indoor unit, coil and appropriate accessories mustalso be observed.

2. The outdoor unit must not be installed with any duct work in the airstream. The outdoor fan is the propeller type and is not designed tooperate against any additional external static pressure.

3. The maximum and minimum conditions for operation must beobserved to assure a system that will give maximum performancewith minimum service. Refer to the dry bulb (DB) and wet bulb (WB)temperature limitations in Table 1.

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4. The 2 stage units are not designed to operate with a low ambient kit.The 2 stage models which can not operate with a low ambient kitinclude YZF060, HC6B060, HL6B060, all YZH, all HC8B, and allHL8B. Do not modify the control system of these models to operatewith any kind of low ambient kit.

5. The maximum allowable line length for this product is 75 feet.

SECTION III: UNIT INSTALLATIONLOCATIONBefore starting the installation, the suitability of the locations for boththe indoor and outdoor units need to be checked. All required limitationsand clearances must be observed. The outdoor unit must have suffi-cient clearance for air entrance to the condenser coil, for air discharge,and for service access as shown in Figure 1.

If the unit is to be installed on a hot sun exposed roof or a paved groundarea that is seasonally hot, the unit should be raised sufficiently abovethe roof or ground to avoid taking the accumulated layer of hot air intothe outdoor unit.

Provide adequate structural support.

ADD-ON REPLACEMENT/RETROFITWhen this unit is being used as a replacement for an R-22 unit, it isrequired that the outdoor unit, indoor coil, and metering device all bereplaced. The following steps should be performed in order to insureproper system operation and performance. Line-set change out is alsorecommended.

1. Change-out of the indoor coil to an approved R-410A coil/ condens-ing unit combination with the appropriate metering device.

2. Change-out of the line-set when replacing an R-22 unit with anR410-A unit is highly recommended to reduce cross-contaminationof oils and refrigerants.

3. If change-out of the line set is not practical, then the following pre-cautions should be taken.• Inspect the line set for kinks, sharp bends, or other restrictions,

and for corrosion.• Determine if there are any low spots in the line set which might

cause oil traps. • Flush the line set with a commercially available flush kit to

remove as much of the existing oil and contaminants as possi-ble.

• Install a suction line filter-drier to trap any remaining contami-nants, and remove it after 50 hours of operation.

4. If the outdoor unit is being replaced due to a compressor burnout,then installation of a 100% activated alumina suction-line filter drierin the suction-line is required, in addition to the factory installed liq-uid-line drier. Operate the system for 10 hours. Monitor the suctiondrier pressure drop. If the pressure drop exceeds 3 psig, replaceboth the suction-line and liquid-line driers. After a total of 10 hoursrun time where the suction-line pressure drop has not exceeded 3psig, replace the liquid line drier, and remove the suction-line drier.During the contamination removal procedure, never leave a suctionline drier in the system longer than 50 hours of run time.

TABLE 1: Maximum / Minimum Operating Limit Conditions

AIR TEMPERATURE AT OUTDOOR COIL, °F

AIR TEMPERATURE AT INDOOR COIL, °F

Min. Max. Min. Max.

DBCool

DB Heat

DBCool

DB Heat

WB Cool

DB Heat

WB Cool

DB Heat

50 -10 115 75 57 501

1.

72 80

1. Operation below this temperature is permissible for a short period of time, during morning warm-up.

NOTICEFor multiple unit installations, units must be spaced a minimum of 24inches apart. (Coil face to coil face.)

FIGURE 1: Typical Installation with Required Clearances

THERMOSTAT

NEC CLASS 1

WIRING

TO INDOOR

BLOWERNEC CLASS 2

WIRING

TO COIL

WEATHERPROOF

DISCONNECT

SWITCH

24” SERVICE

ACCESS

CLEARANCE

NOTE: ALL OUTDOOR WIRING MUST BE WEATHERPROOF

SEAL OPENINGS WITH

PERMAGUM OR EQUIVALENT

60” OVERHEAD

CLEARANCE

10” CLEARANCE

AROUND PERIMETER

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GROUND INSTALLATIONThe unit may be installed at ground level on a solid base that will notshift or settle, causing strain on the refrigerant lines and possible leaks.The unit must be installed in as level a position as possible while main-taining the clearances shown in Figure 1.

Normal operating sound levels may be objectionable if the unit is placeddirectly under windows of certain rooms (bedrooms, study, etc.).

Condensate will drain from beneath the coil of the outdoor unit duringthe defrost cycle. Normally this condensate may be allowed to draindirectly on the ground.

1. Elevate the unit sufficiently to prevent any blockage of the airentrances by snow in areas where there will be snow accumulation.

2. Check the local weather bureau for the expected snow accumula-tion in your area.

3. Isolate the unit from rain gutters to avoid any possible wash out ofthe foundation.

ROOF INSTALLATIONWhen installing units on a roof, the structure must be capable of sup-porting the total weight of the unit, including a pad, lintels, rails, or anycomponents used to minimize the transmission of sound or vibrationinto the conditioned space.

WALL MOUNT INSTALLATIONCare must be taken to mount the outdoor unit on a solid base that issloped to shed water, secure from settlement, and is isolated from thestructural foundation or walls to prevent sound and vibration transmis-sion into the living space. In addition heat pump units must be elevatedabove anticipated snow accumulation levels to allow for proper defrostdrainage and airflow.

On occasion, site conditions may require direct wall mounted bracketsto be used to locate and support the outdoor unit. In these applications,care must be taken to address unit base pan support, structural integ-rity, safe access and serviceability, as well as the possible sound andvibration transmission into the structure. These applications are bestserved by a properly engineered solution.

UNIT PLACEMENT

1. Provide a base in the pre-determined location.2. Remove the shipping carton and inspect for possible damage.3. Compressor tie-down bolts should remain tightened.4. Position the unit on the base provided.

LIQUID LINE FILTER-DRIERThe heat pumps have a solid core bi-flow filter/dryer located on the liq-uid line.

PIPING CONNECTIONS

The outdoor unit must be connected to the indoor coil using field sup-plied refrigerant grade copper tubing that is internally clean and dry.Units should be installed only with the tubing sizes for approved systemcombinations as specified in Tabular Data Sheet. The charge given isapplicable for total tubing lengths up to 15 feet. See Application DataPart Number 247077 for installing tubing of longer lengths and elevationdifferences.

PRECAUTIONS DURING LINE INSTALLATION1. Install the lines with as few bends as possible. Make sure there is no

damage done to the couplings nor kink made in the tubing. Useclean hard drawn copper tubing where no appreciable amount ofbending around obstruction is necessary. If soft copper must beused, make sure to avoid sharp bends which may cause a restric-tion.

2. Ensure that the lines are installed so they do not obstruct serviceaccess to the coil, air handling system, or filter.

3. Make sure to isolate the refrigerant lines to minimize noise transmis-sion from the equipment to the structure.

4. Make sure to insulate the vapor line with a minimum of 3/8” foamrubber insulation (Armaflex or equivalent). Make sure to insulate theliquid lines which are exposed to direct sunlight and/or high temper-atures.

5. Tape and suspend the refrigerant lines as shown. DO NOT allowtube metal-to-metal contact. See Figure 2.

6. Use PVC piping as a conduit for all underground installations asshown in Figure 3. Keep buried lines as short as possible to mini-mize the build up of liquid refrigerant in the vapor line during longperiods of shutdown.

WARNINGThe outdoor unit should not be installed in an area where mud or icecould cause personal injury. Remember that condensate will drip fromthe unit coil during heat and defrost cycles and that this condensatewill freeze when the temperature of the outdoor air is below 32°F.

NOTICEHeat pumps will defrost periodically resulting in water drainage. Theunit should not be located where water drainage may freeze and cre-ate a hazardous condition - such as sidewalks and steps.

CAUTIONFailure to use the same as the original factory drier, or using a substi-tute drier, or using a granular type drier may result in damage to theequipment.

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NOTICEReplacements for the liquid line drier must be exactly the same asmarked on the original factory drier. See Source 1 for O.E.M. replace-ment driers.

Filter-Drier Source 1 Part No. Apply with ModelsS1-404101 All Sizes

WARNINGNever install a suction-line filter drier in the liquid line of an R-410Asystem. Failure to follow this warning can cause a fire, injury or death.

CAUTIONThis system uses R-410A refrigerant only, which operates at higherpressures than R-22. No other refrigerant than R-410A may be usedin this system. Gauge sets, hoses, refrigerant containers, and recov-ery system must be designed to handle R-410A. If you are unsure,consult the equipment manufacturer.

NOTICEUsing a larger than specified line size could result in oil return prob-lems. Using too small a line will result in loss of capacity and otherproblems caused by insufficient refrigerant flow. Slope horizontalvapor lines at least 1" every 20 feet toward the outdoor unit to facili-tate proper oil return.

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7. Pack fiberglass insulation and a sealing material such as permagumaround refrigerant lines where they penetrate a wall to reduce vibra-tion and to retain some flexibility.

8. See Form 247077 for additional piping information.

PRECAUTIONS DURING BRAZING OF LINESAll outdoor unit and evaporator coil connections are copper-to-copperand should be brazed with a phosphorous-copper alloy material suchas Silfos-5 or equivalent. DO NOT use soft solder. The outdoor unitshave reusable service valves on both the liquid and vapor connections.The total system refrigerant charge is retained within the outdoor unitduring shipping and installation. The reusable service valves are pro-vided to evacuate and charge per this instruction.

Serious service problems can be avoided by taking adequate precau-tions to assure an internally clean and dry system.

PRECAUTIONS DURING BRAZING SERVICE VALVEWrap a wet rag around the service valve as shown in Figure 4 to pre-vent heat damage. Also, protect all painted surfaces, insulation, andplastic base during brazing. After brazing, cool joint with wet rag.

Valve can be opened by removing the plunger cap and fully inserting ahex wrench into the stem and backing out counter-clockwise until valvestem just touches the chamfered retaining wall.

Connect the refrigerant lines using the following procedure:1. Remove the cap and Schrader core from both the liquid and vapor

service valve ports at the outdoor unit. Connect low pressure nitro-gen to the liquid line service port.

2. Braze the liquid line to the liquid valve at the outdoor unit. Be sure towrap the valve body with a wet rag. Allow the nitrogen to continueflowing. Refer to the Tabular Data Sheet for proper liquid line sizing.

3. Go to “SECTION IV” for TXV installation.

4. Braze the liquid line to the evaporator liquid connection. Nitrogenshould be flowing through the evaporator coil.

5. Remove the split rubber grommet from the vapor connection at theindoor coil. Braze the vapor line to the evaporator vapor connection.After the connection has cooled, place the rubber grommet back intothe mounting position. Refer to the Tabular Data Sheet for propervapor line sizing.

6. Protect the vapor valve with a wet rag and braze the vapor line con-nection to the outdoor unit. The nitrogen flow should be exiting thesystem from the vapor service port connection. After this connectionhas cooled, remove the nitrogen source from the liquid fitting serviceport.

7. Replace the Schrader core in the liquid and vapor valves.

8. Leak test and repair leaks in all refrigerant piping connections includ-ing the service port flare caps. DO NOT OVERTIGHTEN caps.Torque caps between 40 and 60 inch - lbs. maximum.

9. Evacuate the vapor line, the evaporator, and the liquid line to 500microns or less in accordance with the EVACUTATION procedures.

FIGURE 2: Tubing Hanger

FIGURE 3: Underground Installation

CAUTIONDry nitrogen should always be supplied through the tubing while it isbeing brazed, because the temperature required is high enough tocause oxidation of the copper unless an inert atmosphere is provided.The flow of dry nitrogen should continue until the joint has cooled.Always use a pressure regulator and safety valve to insure that onlylow pressure dry nitrogen is introduced into the tubing. Only a smallflow is necessary to displace air and prevent oxidation.

WARNINGThis is not a backseating valve. The service access port has a valvecore. Opening or closing valve does not close service access port. If the valve stem is backed out past the chamfered retaining wall, theO-ring can be damaged causing leakage or system pressure couldforce the valve stem out of the valve body possibly causing personalinjury.

A0151-001

SHEET METAL HANGER

LIQUID

LINE

INCORRECT

CORRECT

INSULATED VAPOR LINE

TAPE

A0152-001

LIQUID LINE

TO INDOOR COIL TO OUTDOOR UNIT

CAP

INSULATED

VAPOR LINEPVC

CONDUIT

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FIGURE 4: Heat Protection

CAUTIONDo not install any coil in a furnace which is to be operated during the heat-ing season without attaching the refrigerant lines to the coil. The coil isunder 30 to 35 psig inert gas pressure which must be released beforebrazing lines to prevent excessive pressure build-up and possible coildamage.

WARNINGNever attempt to repair any brazed connections while the system is underpressure. Personal injury could result.

WARNINGRefrigeration piping and indoor coil can be pressurized to 250 psig withdry nitrogen and leak tested with a bubble type leak detector. Thenrelease the nitrogen charge.Do not use the system refrigerant from the outdoor unit to purge or leaktest the system.

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10.Release the refrigerant charge into the system in accordance withthe SYSTEM CHARGE procedures. Open the liquid line base valvefirst and let pressures equalize. Then, open the suction line basevalve. When opening either valve, use an appropriate hex headwrench and back seat the base valve by turning it counter clockwiseuntil it stops against the chamfered retaining wall, and then turn itback 1/8 turn. If the service valve is a ball valve, use an adjustableend wrench to turn valve stem one-quarter turn counterclockwise toopen. Do not overturn (or the valve stem may break or become dam-aged).

11.To prevent leaks, replace base valve caps finger tight, and thentighten the cap an additional 1/12 turn (1/2 hex flat).

12.Replace cap on service ports. Do not remove the flare caps from theservice ports except when necessary for servicing the system.

13. See “System Charge” section for checking and recording systemcharge.

SECTION IV: INDOOR EXPANSION DEVICETHERMOSTATIC EXPANSION VALVE (TXV) INSTAL-LATIONSBefore accomplishing the following procedures, verify the proper TXVkit to be installed on the coil distributor. Refer to supplied Tabular DataSheet for proper indoor coil match up and specific TXV kit.

For installations requiring a TXV, the following are the basic steps forinstallation. For detailed instructions, refer to the Installation Instructionsaccompanying the TXV kit.

Install TXV kit as follows:

1. Relieve nitrogen holding charge from the indoor coil by depressingthe Schrader valve stem located in the end of the suction line. Afternitrogen holding charge is completely discharged, cut the spundowncopper to allow installation of the suction line.

2. Slide indoor coil out of cabinet far enough to gain access to equal-izer fitting on the suction line.

3. Before the suction line from the outdoor unit is brazed to the indoorcoil suction line, remove and discard black plastic cap from equalizerfitting on the indoor coil suction line.

4. Loosen and remove distributor cap seal.

5. Install the TXV to the distributor assembly by hand tightening, andthen turn fitting an additional 1/4 turn to seal. Do not overtighten fit-tings.

6. Install the liquid line to the top of the TXV using the liquid line fittingwhich is supplied with the indoor coil. Hand modify the liquid line toalign with casing opening. Hand tighten the liquid line on the TXV,and tighten an additional 1/4 turn to seal.

7. Install the TXV liquid equalizer line onto the equalizer fitting of thesuction line. Hand tighten the 1/4” SAE nut to the equalizer fitting,and tighten an additional 1/3 turn to seal.

8. Install the TXV bulb to the suction line near the equalizer line, usingthe bulb clamp(s) furnished with the TXV assembly kit. Ensure thebulb is making maximum contact. Refer to TXV kit installationinstructions for view of bulb location.

a. Install the bulb on the suction line near the equalizer line withthe bulb horizontal to the suction line. On a suction line under7/8” Outside Diameter (O.D.), install the bulb on top of theline. On a suction line 7/8” O.D. or larger, install the bulb atabout the 2 or 10 o'clock position.

b. If bulb must be installed vertically to the suction line, positionthe bulb at least 16 inches (40.6 cm) from any bend and onthe opposite side of the bend plane. Positioned the bulb withthe bulb tail at the top, so that the bulb acts as a reservoir.

c. Use thermal insulation provided to protect the bulb from theeffect of the surrounding ambient temperature. Cover thebulb completely to insulate from air-stream.

9. Leak test system after outdoor unit is connected.

10.Slide indoor coil back into cabinet.

CAUTIONDo not connect manifold gauges unless trouble is suspected. Approxi-mately 3/4 ounce of refrigerant will be lost each time a standard manifoldgauge is connected.

CAUTIONIn all cases, mount the TXV bulb after vapor line is brazed and hashad sufficient time to cool.

CAUTIONDry nitrogen should always be supplied through the tubing while it isbeing brazed, because the temperature required is high enough tocause oxidation of the copper unless an inert atmosphere is provided.The flow of dry nitrogen should continue until the joint has cooled.Always use a pressure regulator and safety valve to insure that onlylow pressure dry nitrogen is introduced into the tubing. Only a smallflow is necessary to displace air and prevent oxidation.

NOTICEAll connections to be brazed are copper-to-copper and should bebrazed with a phosphorous-copper alloy material such as Silfos-5 orequivalent. Soft solder is NOT to be used.

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NOTICEDo not install TXV onto distributor assembly until field supplied liquidline is brazed onto the indoor coil liquid line and cooled.

CAUTIONDo not use slip joint pliers. Damage and distortion of distributor canprevent proper seal. Use appropriate sized adjustable end wrench.

WARNINGThe schrader valve core from the TXV kit MUST NOT be installed inthe equalizer fitting when the TXV kit is installed. Poor system perfor-mance or system failure could result.

NOTICEDo not install TXV equalizer line onto equalizer fitting nor the TVXbulb onto the suction vapor line until field supplied suction line isbrazed onto the indoor coil suction line and cooled.

NOTICEThe TXV bulb is to be installed on the suction line near the equalizerline, using the two bulb clamps furnished with the TXV assembly kit.The bulb is to make maximum contact. The TXV installation instruc-tion provide an illustration of proper bulb location.

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SECTION V: EVACUATIONDuring this process, it is necessary to evacuate the system to 500microns or less. If a leak is suspected, a dry nitrogen charge is used tolocate leak(s). After repairing any leaks, another leak test is to be per-formed.

To verify that the system has no leaks, the system is held under a vac-uum by closing the valve to the vacuum pump suction isolating thepump. The micron gauge is observed for a few minutes. If the microngauge indicates a steady and continuous rise, it is an indication of aleak. If the gauge shows a rise, then levels off after a few minutes andremains fairly constant above 500 microns, it is an indication that thesystem is leak free but still contains moisture and may require furtherevacuation. Proper system evacuation requires the micron gauge toindicate a vacuum holding below 500 microns for several minutes.

SECTION VI: SYSTEM CHARGE

To ensure that your unit performs at the published levels, it is importantthat the indoor airflow is determined and refrigerant charge addedaccordingly.

MEASURE INDOOR AIR FLOWTo determine rated air flow for a specific match, consult the technical lit-erature at www.upgnet.com. When attempting to match this air flow,select the lowest possible speed tap, measure the actual flow, andadjust as necessary.

To measure actual air flow, it is not an acceptable method to justcheck the jumper pin setting tables and to assume 0.5” static pres-sure drop.To determine indoor air flow, first measure the static pressure with amanometer between the filter and blower. On a single-piece air handler,take a second reading after the coil. On a furnace or modular air han-dler, take the second reading after the heat exchanger, but before theindoor coil. Add the negative return static to the positive supply static todetermine the system total static pressure. Treat the negative returnstatic as a positive pressure (even though it is a negative reading). Ifthere is static pressure on the blower (i.e. -.10) return, add it to a supplystatic (.40) which equals a (.50) total system static pressure. Comparethis value to the table for the indoor unit's static pressure vs. CFM or toa curve chart.

CHARGING THE UNIT

The factory charge in the outdoor unit includes enough charge for theunit, 15 ft. (4.6 m) of refrigerant piping, and the smallest indoor coil/airhandler match-up. Some indoor coil/air handler matches may requireadditional charge.

See Tabular Data Sheet provided in unit Customer Booklet for chargerequirements.

The “TOTAL SYSTEM CHARGE” must be permanently marked on theunit data plate.

TOTAL SYSTEM CHARGE DETERMINED 1. Determine outdoor unit charge from tabular data sheet.2. Determine indoor coil adjustment from tabular data sheet.3. Calculate the line charge for refrigerant piping using the tabular data

sheet if line length is greater than 15 feet (4.6 m).4. Total system charge = item 1 + item 2 + item 3.5. Permanently stamp or mark the unit data plate with the total amount

of refrigerant in the system.

CHARGING IN COOLING MODEThe unit includes cooling charging chart. All units include a subcooling charging chart for cooling. If a charging chart is not on the unit, then it can be obtained at www.upgnet.com.Cooling charts should not be used to charge the unit. They are ref-erence charts for servicing the unit. After the unit has been serviced, collect the charge and weigh itback in according to the directions.When charging a unit in cooling mode, the charge MUST be weighed in.Charging by any other method, such as superheat, subcooling, coolingcharging charts, feeling the line set, etc is not acceptable. Most heatpumps are sensitive to charge in heating, requiring more charge, socharging by an unacceptable method will cause the unit to performpoorly in heating mode.

CAUTIONRefrigerant charging should only be carried out by a qualified air con-ditioning contractor.

CAUTIONR-410A refrigerant cylinders are rose colored. Always charge thesystem slowly with liquid R-410A refrigerant.

CAUTIONCompressor damage will occur if system is improperly charged. Onnew system installations, charge system per tabular data sheet forthe matched coil and follow guidelines in this instruction.

!

!

!

CAUTIONDo not leave the system open to the atmosphere. Unit damage couldoccur due to moisture being absorbed by the POE oil in the system.This type of oil is highly susceptible to moisture absorption.

WARNINGDO NOT attempt to pump “Total System Charge” into outdoor unit formaintenance or service. This may cause damage to the compressorand/or other components. Recover and weigh “System Charge” intoan appropriate recovery cylinder for any instances requiring evacua-tion.

CAUTIONIT IS UNLAWFUL TO KNOWINGLY VENT, RELEASE OR DIS-CHARGE REFRIGERANT INTO THE OPEN AIR DURING REPAIR,SERVICE, MAINTENANCE OR THE FINAL DISPOSAL OF THISUNIT.

NOTICEThis method is for systems that only have interconnecting lines. Ifany other objects that adjust the charge levels are placed betweenthe indoor and outdoor units (example: a refrigerant flow meter), thenbefore adding charge, the device must first be removed. Follow thesteps above. Run the system in both cooling and heating mode andrecord the high side pressure in each mode. Then insert the deviceand charge the system by matching the same high side pressure inboth heating and cooling as that value recorded without the device. Itis not acceptable to add a pre-determined charge amount listed bythe device manufacturer nor is it acceptable to use any othermethod.

!

!

!

6 Johnson Controls Unitary Products

835966-UIM-G-0716

CHARGING IN HEATING MODEIf charging in heating mode, there are two methods for charging:Weighing in the charge is the best method for ensuring the unit per-forms as rated. However, if a device is installed in the line set that altersthe amount of refrigerant, such as a refrigerant flow meter, then the bet-ter method for charging is to match the liquid pressure from the heatingcharging chart (if available) or heating service data (available fromwwwupgnet.com). If no such device exists in the line set, then themethod is acceptable if weighing in the charge is not an option.

If servicing a unit for low heating performance and you find that youhave to add a significant amount of charge (ex: 20-30 ounces) in orderto match the published liquid pressures, the unit will NOT be over-charged in cooling. Heat pumps are sensitive to charge in heating, butnot in cooling.

CHARGING WITH GAUGES

Do not charge a heat pump in cooling mode with gauges or chargingcharts or any other method other than weighing in the charge.

However for servicing a heat pump unit, the charging charts are anacceptable troubleshooting method, but when the servicing is com-pleted, the charge should be reclaimed and weighed in (to guaranteeoptimal performance in heating mode). If servicing in heating mode, thecharge does not have to be reclaimed if the liquid pressures match thepublished values.

Before measuring the pressures, use the method above to check the airflow and then consult the table and match the liquid pressure to that airflow.

Before servicing a unit, confirm that the gauges are accurate by comparing the gauges against a calibrated pressure gauge that has been calibrated against a national standard. If a calibrated pressure gauge is not available, place a R-410A virgin refrigerant container in a conditioned space long enough to come to temperature equilibrium with the surroundings. Then measure the temperature of the air and the pressure of the refrigerant and compare it to the following table::

If the gauges are correct, then measure the pressures using both the cooling and heating charts.

SECTION VII: ELECTRICAL CONNECTIONSGENERAL INFORMATION & GROUNDINGCheck the electrical supply to be sure that it meets the values specifiedon the unit nameplate and wiring label.

Power wiring, control (low voltage) wiring, disconnect switches and overcurrent protection must be supplied by the installer. Wire size should besized per NEC requirements.

The complete connection diagram and schematic wiring label is locatedon the inside surface of the unit service access panel and this instruc-tion.

FIELD CONNECTIONS POWER WIRING1. Install the proper size weatherproof disconnect switch outdoors and

within sight of the unit.2. Remove the screws at the bottom of the corner cover. Slide corner

cover down and remove from unit. See Figure 5.3. Run power wiring from the disconnect switch to the unit.4. Remove the service access panel to gain access to the unit wiring.

Route wires from disconnect through power wiring opening providedand into the unit control box.

5. Install the proper size time-delay fuses or circuit breaker, and makethe power supply connections.

6. Energize the crankcase heater if equipped to save time by preheat-ing the compressor oil while the remaining installation is completed.

CAUTIONRefrigerant charging should only be carried out by a qualified air con-ditioning contractor.

CAUTIONCompressor damage will occur if system is improperly charged. Onnew system installations, charge system per tabular data sheet forthe matched coil and follow guidelines in this instruction.

TABLE 2: R-410A Saturation Properties

Temp (°F)

Pressure (Psig)

Temp (°F)

Pressure (Psig)

Temp (°F)

Pressure (Psig)

40 119 75 218 110 365

45 130 80 236 115 391

50 143 85 255 120 418

55 156 90 274 125 447

60 170 95 295 130 477

65 185 100 317

70 201 105 341

!

!

CAUTIONAll field wiring must USE COPPER CONDUCTORS ONLY and be inaccordance with Local, National Fire, Safety & Electrical Codes. Thisunit must be grounded with a separate ground wire in accordancewith the above codes.

FIGURE 5: Typical Field Wiring

!

Corner

Cover

Control

Wiring

Power

Wiring

Service

Access

Panel

Ambient

Temperature

Sensor A0203-001

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835966-UIM-G-0716

FIELD CONNECTIONS CONTROL WIRING - CONVENTIONAL1. Route low voltage wiring into bottom of control box as shown in Fig-

ures 5 and 6. Make low voltage wiring connections inside the junc-tion box per Figures 10 - 20.

2. The complete connection diagram and schematic wiring label islocated on the inside surface of the unit service access panel.

3. Replace the corner cover and service access panel removed inSteps 2 and 4 of the “Field Connections Power Wiring” procedures.

4. All field wiring to be in accordance with national electrical codes(NEC) and/or local city codes.

5. Mount the thermostat about 5 ft. above the floor, where it will beexposed to normal room air circulation. Do not place it on an outsidewall or where it is exposed to the radiant effect from exposed glassor appliances, drafts from outside doors or supply air grilles.

6. Route the 24-volt control wiring (NEC Class 2) from the outdoor unitto the indoor unit and thermostat.

FIELD CONNECTIONS CONTROL WIRING - COMMUNICATING1. The Communication Harness (used in the outside heat pump unit) is

provided with the communicating thermostat.2. Route low voltage four conductor shielded thermostat communica-

tions harness into junction box and connect to communications porton control board. See Figures 5, 6, 7, and 8.

3. The complete connection diagram and schematic wiring label islocated on the inside surface of the unit service access panel.

4. Replace the corner cover and service access panel removed inSteps 2 and 4 of the “Field Connections Power Wiring” section.

5. Route the 24-volt control wiring in accordance with national electri-cal codes (NEC) Class 2 from the outdoor unit to the indoor unit andthermostat.

6. All field wiring to be in accordance with NEC and/or local city codes.7. Mount the thermostat about 5 ft. above the floor, where it will be

exposed to normal room air circulation. Do not place it on an outsidewall or where it is exposed to the radiant effect from exposed glassor appliances, drafts from outside doors or supply air grilles.

.

NOTICEAmbient temperature sensor should extend below corner cover by 1”.

NOTICETo eliminate erratic operation, seal the hole in the wall at the thermo-stat with permagum or equivalent to prevent air drafts affecting theoperation of in the thermostat.

FIGURE 6: Communications Harness Connection

IMPORTANTIf unit is going to be setup as a communicating system, the conven-tional wiring must be removed from the Outdoor Control Board.

COMMUNICATIONS PORT CONTROL BOARD

COMMUNICATIONS

HARNESS

JUNCTION

BOX

A0217-001

NOTICEAmbient temperature sensor should extend below corner cover by 1”.

NOTICETo eliminate erratic operation, seal the hole in the wall at the thermo-stat with permagum or equivalent to prevent air drafts from affectingthe operation of the thermostat.

FIGURE 7: Communicating HP with Communicating Air Handler or Furnace

FIGURE 8: Communicating HP with Non-Communicating Air Handler or Furnace using Communicating Interface Control

R

C

Y1

Y2

Touch Screen

Communicating

Control

Air Handler/Furnace

Communicating

Control

Heat Pump

Communicating

Control

GND

or C

GND

or C

B-

R

A+

GND

or C

GND

or C

B-

R

A+

GND

or C

GND

or C

B-

R

A+

A0218-001

R

C

Y1

Y2

HUM

W2

DHUM

W

G

C

R

O

Y

Y2

HUM

W2

DHUM

W

G

C

R

O

Y

Y2

Touch Screen

Communicating

Control

Communicating

Indoor

Interface Control

Non-Communicating

Indoor Unit

Heat Pump

Communicating

Control

Wire per

non-comm.

installation

manual

Assume that

connections

are from

thermostat

GND

or C

GND

or C

B-

R

A+

GND

or C

GND

or C

B-

R

A+

GND

or C

GND

or C

B-

R

A+

A0219-001

8 Johnson Controls Unitary Products

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DEHUMIDIFICATION CONTROL (Typical)The indoor unit Installation Manual instructions for the air handler or fur-nace describe the interface with the outdoor heat pump. A dehumidifi-cation control accessory 2HU16700124 may be used with variablespeed air handlers or furnaces in high humidity areas. This control

works with the variable speed indoor unit to provide cooling at areduced air flow, lowering evaporator temperature and increasing latentcapacity. The humidistat in this control opens the humidistat contacts asthe humidity rise. Installation instructions are packaged with the acces-sory. (Also see Figures 10 - 20). Prior to the installation of the dehumid-ification control, the humidistat jumper must be set to ‘YES” on theindoor variable speed air handler or furnace control board.

During cooling, if the relative humidity in the space is higher than thedesired set point of the dehumidification control, the variable speedblower motor will operate at lower speed until the dehumidification con-trol is satisfied. A 40-60% relative humidity level is recommended toachieve optimum comfort.

If a dehumidification control is installed, it is recommended that a mini-mum air flow of 325 cfm/ton be supplied at all times.

To see connection diagrams of all UPG equipment, the “Low VoltageSystem Wiring” document is available online at www.upgnet.com in theProduct Catalog Section.

INDOOR CUBIC FEET PER MINUTE (CFM) CONFIGU-RATION (Typical)For proper system operation, the indoor CFM must be set properly.

Refer to the Technical Guide of the outdoor unit for the recommendedair flow settings of each size condensing unit and matching indoor unit.

Set the cooling speed per the instructions for the air handler or furnace.Verify the airflow.

If installed as a communicating system (outdoor, indoor, and thermo-stat), the system will automatically adjust to the optimal airflow settings.These parameters can also be modified using the Touch Screen Com-munication Control. Refer to the Touch Screen Communication Controlowner’s manual for this procedure. Manual setting of the airflow jump-ers on the indoor equipment is not necessary with the Touch ScreenCommunication Control.

IMPORTANTDo not place more than one wire under any single communicationterminal screw (there are four communication terminal screws). Ifmore than one wire must be connected to a terminal screw, attachonly the terminal end of a one wire pigtail no longer than 6“, anduse a wire connector to connect the other end of the pigtail to theother wires. Failure to do this will result in nuisance communicationerror faults. See Figure 9.

FIGURE 9: Multi-wire Terminal Connection

A020-001

A+

R

C

B-

NOTE:

Ensure only one wire under

terminal screw.

To connect more than one wire:

1. Connect only terminal end of

” wire pigtail.

2. Use wire connector to connect

other end of pigtail

to other wires.

OUTDOOR UNITINDOOR UNIT

WIRE

CONNECTOR

THERMOSTAT

TERMINAL

SCREW

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For additional connection diagrams of all UPG equipment, refer to “Low Voltage System Wiring.” Document available online at www.upgnet.com inthe Product Catalog Section.

FIGURE 10: Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – Modulating Furnace

Single Stage Heat Pump (with YGVI control) - Modulating Furnace

C

24 - Volt Common

Y1

Single Stage

Compressor

R

24 - Volt Hot

W1 OUT

First Stage Heat

W2 OUT

Second Stage Heat

Y2 OUT

Second Stage

Compressor

O

Reversing Valve

Energized In Cool

X/L

Malfunction Light

Y2

Second Stage

Compressor

W

Auxiliary Heat

BSG

Bonnet Sensor

BS

Bonnet Sensor

Bonnet Sensor Kit

(Optional)

S1-37309243000

Change “FFuel” jumper

on the heat pump control

to “ON”

Jumper 2 must be

set to “O”

Jumper 3 must be

set to “GAS”

Jumper 1 must be

set to “HEAT PUMP”

Setup Step 50 “Dual

Fuel” must be set

“External”

Suggestion: Set setup

step 26 “2nd Stage

Deadband” and step 29

“Minutes Between 1st

and 2nd” to 0.

Fault

W3

Third Stage Heat

Y2

Second Stage

Compressor

W2

Second Stage Heat

W1/O/B

First Stage Heat

HUM

DHUM

HEATPUMP jumper must

be set to “YES”

Move HUMIDISTAT

jumper to “YES”

if humidistat is to be used.

W

Modulating Heat

Y/Y2

Second or Full

Stage Compressor

O

Reversing Valve

Energized in Cool

LO COMP

Single Stage

Compressor (OUT)

HI COMP

Second Stage

Compressor (OUT)

DHUM

Dehumidification

Open on Humidity Rise

G

Fan

G

Fan

Y1

First Stage Compressor

Y1

First Stage Compressor

C

24 - Volt Common

C

24 - Volt Common

R

24 - Volt Hot

R

24 - Volt Hot

A006-001

TM9M

10 Johnson Controls Unitary Products

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FIGURE 11: Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – Single Stage Furnace (Standard ECM)

A007-001

TM9E

TM9X

T*(8,L)X

Single Stage Heat Pump (with YGVI control) - Single Stage Furnace (S-ECM)

ID MODELS

Y1

First Stage Compressor

Y1

First Stage Compressor

Y1

Single Stage

Compressor

Change “FFuel” jumper

on the heat pump control

to “ON”

Jumper 1 must be

set to “HEAT PUMP”

Jumper 2 must be

set to “O”

Jumper 3 must be

set to “GAS”

Setup Step 50 “Dual

Fuel” must be set

“External”

Suggestion: Set setup

step 26 “2nd Stage

Deadband” and step 29

“Minutes Between 1st

and 2nd” to 0.

Bonnet Sensor Kit

(Optional)

S1-37309243000 BS

Bonnet Sensor

BSG

Bonnet Sensor

W

Auxiliary Heat

Y2

Second Stage

Compressor

X/L

Malfunction Light

O

Reversing Valve

Energized In Cool

Y2 OUT

Second Stage

Compressor

W2 OUT

Second Stage Heat

W1 OUT

First Stage Heat

R

24 - Volt Hot

C

24 - Volt Common

C

24 - Volt Common

R

24 - Volt Hot

G

Fan

W

First Stage Heat

Y/Y2

Second or Full

Stage Compressor

C

24 - Volt Common

R

24 - Volt Hot

G

Fan

Fault

W3

Third Stage Heat

Y2

Second Stage

Compressor

W2

Second Stage Heat

W1/O/B

First Stage Heat

HUM

DHUM

THERMOSTAT

S1-THSU32HP7b SINGLE STAGE

FURNACE (S-ECM)

SINGLE STAGE

HEAT PUMP

YORKGURARD VI

CONTROL

SINGLE STAGE

FURNACE (S-ECM)

Johnson Controls Unitary Products 11

835966-UIM-G-0716

FIGURE 12: Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – V/S Air Handler

Single Stage Heat Pump (with YGVI control) - V/S Air Handler

ID MODELS

MV

Change “FFuel” jumper

on the heat pump control

to “OFF”

BS

Bonnet Sensor

BSG

Bonnet Sensor

W

Auxiliary Heat

Y2

Second Stage

Compressor

X/L

Malfunction Light

O

Reversing Valve

Energized In Cool

Y2 OUT

Second Stage

Compressor

W2 OUT

Second Stage Heat

W1 OUT

First Stage Heat

R

24 - Volt Hot

Y1

Single Stage

Compressor

C

24 - Volt Common

COM

24 - Volt Common

Y/Y2

Second or Full

Stage Compressor

R

24 - Volt Hot

G

FAN

W1

First Stage Heat

W2

Second Stage Heat

Y1

First Stage Compressor

O

Reversing Valve

Energized In Cool

X/L

Malfunction Light

HUM

Humidity Switch

Open on Humidity Rise

EAC

(24 VAC out)

Electronic Air Cleaner

HUM OUT

(24 VAC out)

Humidifier

Move the HUM STAT

jumper to “YES”

if humidistat is to be

used.

Refer to AH

documentation

for W1 and W2 electric

heat staging options

C

24 - Volt Common

Y1

First Stage Compressor

R

24 - Volt Hot

G

FAN

Fault

W3

Third Stage Heat

Y2

Second Stage

Compressor

W2

Second Stage Heat

W1/O/B

First Stage Heat

HUM

(only on S1-

THSU32HP7b)

DHUM

(only on S1-

THSU32HP7b)

Jumper 2 must be

set to “O”

Jumper 3 must be

set to “ELEC”

Setup Step 24 “Number

Of Compressor Stages”

must be set “1”

Jumper 1 must be

set to “HEAT PUMP”

24VAC Electronic

Air Cleaner Relay

(Optional)

24VAC Humidifier Relay

(Optional)

A008-001

AHV

12 Johnson Controls Unitary Products

835966-UIM-G-0716

FIGURE 13: Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – PSC Air Handler

Single Stage Heat Pump (with YGVI control) - PSC Air Handler

ID MODELS

A009-001

AHR

MA

Change FFuel” jumper

on the heat pump control

to “OFF”

“Move the HUM STAT

jumper to “YES”

if humidistat is to be

used.

Refer to AH

documentation

for W1 and W2 electric

heat staging optionsJumper 3 must be

set to “ELEC”

Jumper 2 must be

set to “O”

Jumper 1 must be

set to “HEAT PUMP”

BS

Bonnet Sensor

BSG

Bonnet Sensor

W

Auxiliary Heat

Y2

Second Stage

Compressor

X/L

Malfunction Light

O

Reversing Valve

Energized In Cool

Y2 OUT

Second Stage

Compressor

W2 OUT

Second Stage Heat

W1 OUT

First Stage Heat

R

24 - Volt Hot

Y1

Single Stage

Compressor

C

24 - Volt Common

HUM OUT

(24 VAC out)

Humidifier

EAC

(24 VAC out)

Electronic Air Cleaner

HUM

Humidity Switch

Open on Humidity Rise

X/L

Malfunction Light

O

Reversing Valve

Energized In Cool

Y1

First Stage Compressor

W2

Second Stage Heat

W1

First Stage Heat

G

FAN

R

24 - Volt Hot

Y/Y2

Second or Full

Stage Compressor

COM

24 - Volt Common

C

24 - Volt Common

Y1

First Stage Compressor

R

24 - Volt Hot

G

FAN

W2

Second Stage Heat

W1/O/B

First Stage Heat

External Humidistat(Optional)

Open on Humidity Rise

THERMOSTAT

S1-THSU21P1bPSC

AIR HANDLERSINGLE STAGE

HEAT PUMP

PSCAIR HANDLER

CONTROL

YORKGUARD VICONTROL

24VAC Humidifier Relay

(Optional)

24VAC Electronic

Air Cleaner Relay

(Optional)

Johnson Controls Unitary Products 13

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FIGURE 14: Thermostat Wiring – Single Stage Heat Pump (with YGVI control) – V/S Air Handler

Single Stage Heat Pump (with YGVI control) - V/S Air Handler

ID MODELS

MV

VARIABLE

SPEED

AIR HANDLER

SINGLE STAGE

HEAT PUMP

THERMOSTAT

S1-THSU21P1b

C

24 - Volt Common

Y1

First Stage

Compressor

R

24 - Volt Hot

G

Fan

W2

Second Stage Heat

W1/O/B

First Stage Heat

Jumper 1 must be set

to “HEATPUMP”

Jumper 2 must be set

to “O”

Jumper 3 must be set

to “ELEC”

Move the HUM STAT

jumper to “YES”

if humidistat is to be

used.

Refer to AH

documentation

for W1 and W2 electric

heat staging options.

BS

Bonnet Sensor

BSG

Bonnet Sensor

W

Auxiliary

Y2

Second Stage

Compressor

X/L

Malfunction Light

OReversing Valve

Energized in Cool

Y2 OUTSecond StageCompressor

R

24 - Volt Hot

Y1Single StageCompressor

C

24 - Volt Common

YORKGUARD VI

CONTROL

VARIABLE SPEED

AIR HANDLER

CONTROL

COM

24 - Volt Common

Y/Y2Second or Full

Stage Compressor

R

24 - Volt Hot

G

Fan

W1First Stage Heat

W2Second Stage Heat

Y1First

Stage Compressor

OReversing Valve

Energized in Cool

X/L

Malfunction Light

HUM OUT(24 VAC out)

Humidifier

EAC(24 VAC out)

Electronic Air Cleaner

External Humidistat

(Optional)

Open on Humidity Rise

HUMHumidity Switch

Open on Humidity Rise

W2 OUT

Second Stage Heat

W1 OUT

First Stage Heat

Change “FFuel” jumper

on the heat pump control

to “OFF”

24VAC Electronic

Air Cleaner Relay

(Optional)

24VAC Humidifier Relay

(Optional)

AHV

A010-001

14 Johnson Controls Unitary Products

835966-UIM-G-0716

FIGURE 15: Thermostat Wiring – Two-Stage Heat Pump - Two-Stage Variable Speed Furnace

ID MODELS

Change “FFuel” jumper

on the heat pump control

to “ON”

Jumper 1 must be set

to “HEATPUMP”

A011-001

HP 24A Two Stage Heat Pump - Two Stage Variable Speed Furnace (With Hot Heat Pump Operation)

Change Hot Heat Pump

jumper on the heat pump

control to “ON”

Move HEAT PUMP

jumper to “YES”

Move DHUM

jumper to “YES”

if humidistat is to be used.

Jumper 3 must be set

to “GAS”

Jumper 2 must be set

to “O”

Setup Step 50 “Dual

Fuel” must be set

“External”

DHUM

DehumidificationBonnet Sensor

(Optional)BS

Bonnet Sensor

BSG

Bonnet Sensor

W

Auxiliary Heat

Y2

Second Stage

Compressor

X/L

Malfunction Light

O

Reversing Valve

Energized In Cool

Y2 OUT

Second Stage

Compressor

W2 OUT

Second Stage Heat

W1 OUT

First Stage Heat

R

24 - Volt Hot

Y1

Single Stage

Compressor

C

24 - Volt Common

C

24 - Volt Common

Y1

Single Stage

Compressor

R

24 - Volt Hot

G

Fan

W/W1

First Stage Heat

W2

Second Stage Heat

Y/Y2

Second or Full

Stage Compressor

O

Reversing Valve

X/L

Malfunction Light

DHUM

HUM

W1/O/B

First Stage Heat

W2

Second Stage Heat

Y2

Second Stage

Compressor

W3

Third Stage Heat

Fault

G

Fan

R

24 - Volt Hot

Y1

First Stage Compressor

C

24 - Volt Common

OD MODELS

YZH

H*8BTHERMOSTAT

S1-THSU32HP7b

TWO STAGE

VARIABLE SPEED

FURNACE

TWO STAGE

HEAT PUMP

TWO STAGE

VARIABLE SPEED

FURNACE CONTROL

YORKGUARD VI

CONTROL

TM8V

TM9V YZF060

H*6B60

Johnson Controls Unitary Products 15

835966-UIM-G-0716

FIGURE 16: Thermostat Wiring – Two-Stage Heat Pump - Two-Stage Variable Speed Furnace

HP 24C Two Stage Heat Pump – Two Stage Variable Speed Furnace (With Hot Heat Pump Operation)

O

Reversing Valve

Energized in Cool

C

24 – Volt Common

R

24 – Volt Hot

W1 OUT

First Stage Heat

W2 OUT

Second Stage Heat

Y2 OUT

Second Stage Compressor

Y1

Single Stage Compressor

X/L

Malfunction Light

Y2

Second Stage Compressor

W

Auxiliary Heat

BS

Bonnet Sensor

BSG

Bonnet Sensor

TWO STAGE

HEAT PUMP

Bonnet Sensor

(Optional)

C

24 – Volt Common

R

24 – Volt Hot

Y1

Single Stage Compressor

TWO STAGE

VARIABLE SPEED

FURNACE CONTROL

G

Fan

TWO STAGE

VARIABLE SPEED

FURNACE

W/W1

First Stage Heat

Y/Y2

Second or Full

Stage Compressor

W2

Second Stage Heat

O

Reversing Valve

X/L

Malfunction Light

DHUM

Dehumidification

ID MODELS

YORKGUARD VI

CONTROL

OD MODELS

YZH

H*8B

C

24 – Volt Common

R

24 – Volt Hot

Y1

First Stage Compressor

Y2

Second Stage Compressor

G

Fan

THERMOSTAT

C

24 – Volt Common

Y

First Stage Compressor

O/B

Reversing Valve

L

Malfunction Light

Y2

Second Stage Compressor

G

Fan

*PP32U70124

THERMOSTAT

E

Emergency Heat

R

24 – Volt Hot

(Heat XFMR)

RC

24 – Volt Hot

(Cool XFMR)

AUX

Auxiliary Heat

Thermostat Installer Setup

0170-System Type-

must be set to 12

3 Heat/2 Heat Pump

Thermostat Installer Setup

0190-Changeover Valve-

must be set to 0

O/B terminal

Energized in Cooling

Thermostat Installer Setup

0200-Backup Heat Source-

must be set to 1

Heat Pump Backup Heat

Source is Fossil Fuel

External Humidistat

(Optional)

Open on Humidity Rise

Thermostat Installer Setup

0210-External Fossil Fuel

Kit- must be set to 1

Heat Pump Control

is Controlling Heat Pump

Backup Heat

S1-THPU32HP7b

A012-001

W3/AUX

Auxiliary Output

W1/O/B

First Stage Heat

W2

Second Stage

Heat

Jumper 1 must be

set to “Gas”

Jumper 2 must be

set to “O”

Jumper 3 must be

set to “HP”

Can use “W3/Aux”

output to control

dehumidification

if desired

Duel Fuel setting

must be “External”

Change “FFuel” jumper

on the heat pump control

to “ON”

Change Hot Heat Pump

jumper on the heat pump

control to “ON”

Move HEAT PUMP

jumper to “YES”

Move DHUM

jumper to “YES”

if humidistat is to be used.

TM8V

TM9V

YZF060

H*6B60

16 Johnson Controls Unitary Products

835966-UIM-G-0716

FIGURE 17: Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Air Handler

HP 27A Two Stage Heat Pump – Variable Speed Air Handler (With Hot Heat Pump Operation)

O

Reversing Valve

Energized in Cool

C

24 – Volt Common

R

24 – Volt Hot

W1 OUT

First Stage Heat

W2 OUT

Second Stage Heat

Y2 OUT

Second Stage Compressor

Y1

Single Stage Compressor

X/L

Malfunction Light

Y2

Second Stage Compressor

W

Auxiliary Heat

BS

Bonnet Sensor

BSG

Bonnet Sensor

TWO STAGE

HEAT PUMP

C

24 – Volt Common

Y1

First Stage Compressor

Y2

Second Stage Compressor

G

Fan

THERMOSTAT

R

24 – Volt Hot

W3

Third Stage Heat

COM

24 – Volt Common

R

24 – Volt Hot

W1

First Stage Aux. Heat

W2

Second Stage Aux. Heat

Y1

Single Stage Compressor

Y/Y2

Second or Full

Stage Compressor

O

Reversing Valve

Energized in Cool

X/L

Malfunction Light

HUM

Dehumidification-

Open on Humidity Rise

VARIABLE SPEED

AIR HANDLER CONTROL

G

Fan

Move the MODE

jumper to “HP”

Move the HUM STAT

jumper to “YES”

if humidistat is to be used.

VARIABLE SPEED

AIR HANDLER

ID MODELS

MV

OD MODELS

YORKGUARD VI

CONTROL

EAC(24 VAC out)

Electronic Air Cleaner

Refer to AH documentation

for W1 and W2 electric

heat staging options.

HUM OUT

(24 VAC out)

Change Hot Heat Pump

jumper on the heat pump

control to “ON”

A013-001

Fault

Y2

Second Stage Compressor

W1/O/B

First Stage Heat

W2

Second Stage Heat

HUM

DHUM

Jumper 2 must be set

to “O”

Setup Step 50 “Dual

Fuel” must be set

“External”

S1-THSU32HP7b

Jumper 1 must be set

to “HEATPUMP”

24VAC Humidifier Relay

(Optional)

24VAC Electronic

Air Cleaner Relay

(Optional)

AHV YZH

YZF060

H*8B

H*6B60

Johnson Controls Unitary Products 17

835966-UIM-G-0716

FIGURE 18: Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Air Handler

O

Reversing Valve

Energized in Cool

C

24 – Volt Common

R

24 – Volt Hot

W1 OUT

First Stage Heat

W2 OUT

Second Stage Heat

Y2 OUT

Second Stage Compressor

Y1

Single Stage Compressor

X/L

Malfunction Light

Y2

Second Stage Compressor

W

Auxiliary Heat

BS

Bonnet Sensor

BSG

Bonnet Sensor

TWO STAGE

HEAT PUMP

C

24 – Volt Common

R

24 – Volt Hot

Y1

First Stage Compressor

Y2

Second Stage Compressor

G

Fan

THERMOSTAT

C

24 – Volt Common

Y

First Stage Compressor

O/B

Reversing Valve

L

Malfunction Light

Y2

Second Stage Compressor

G

Fan

*PP32U70124

THERMOSTAT

E

Emergency Heat

R

24 – Volt Hot

(Heat XFMR)

RC

24 – Volt Hot

(Cool XFMR)

Thermostat Installer Setup

must be set to 12

3 Heat/2 Heat Pump

Thermostat Installer Setup

must be set to 0

O/B terminal

Energized in Cooling

Thermostat Installer Setup

must be set to 0

Heat Pump Backup Heat

Source is Electric

AUX

Auxiliary Heat

COM

24 – Volt Common

R

24 – Volt Hot

W1

First Stage Aux. Heat

W2

Second Stage Aux. Heat

Y1

Single Stage Compressor

Y/Y2

Second or Full

Stage Compressor

O

Reversing Valve

Energized in Cool

X/L

Malfunction Light

HUM

Dehumidification-

Open on Humidity Rise

VARIABLE SPEED

AIR HANDLER CONTROL

G

Fan

Move the MODE

jumper to “HP”

Move HUM STAT

jumper to “YES”

if humidistat is to be used.

VARIABLE SPEED

AIR HANDLER

ID MODELS

MV

YORKGUARD VI

CONTROL

EAC(24 VAC out)

Electronic Air Cleaner

External Humidistat

(Optional)

Open on Humidity RiseHUM OUT

(24 VAC out)

Refer to AH documentation

for W1 and W2 electric

heat staging options.

OD MODELS

Change Hot Heat Pump

jumper on the heat pump

control to “ON”

A014-001

S1-THPU32HP7b

W3/Aux

Auxiliary Output

W1/O/B

First Stage Heat

W2

Second Stage Heat

Jumper 1 must

be set to “ELEC”

Jumper 2 must be

set to “O”

Jumper 3 must be

set to “HP”

HP 27C Two Stage Heat Pump - Variable Speed Air Handler (With Hot Heat Pump Operation)

0190-Changeover Valve

0200-Backup Heat Source

0170-System Type

Can use “W3/Aux”

output to control

dehumidification

if desired

24VAC Humidifier Relay

(Optional)

24VAC Electronic

Air Cleaner Relay

(Optional)

AHV

YZH

YZF060

H*8B

H*6B60

18 Johnson Controls Unitary Products

835966-UIM-G-0716

FIGURE 19: Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Modulating Furnace

HP 28A Two Stage Heat Pump – Variable Speed Modulating Furnace (With Hot Heat Pump Operation)

O

Reversing Valve

Energized in Cool

C

24 – Volt Common

R

24 – Volt Hot

W1 OUT

First Stage Heat

W2 OUT

Second Stage Heat

Y2 OUT

Second Stage Compressor

Y1

Single Stage Compressor

X/L

Malfunction Light

Y2

Second Stage Compressor

W

Auxiliary Heat

BS

Bonnet Sensor

BSG

Bonnet Sensor

YORKGUARD VI

CONTROL

TWO STAGE

HEAT PUMP

Bonnet Sensor

(Optional)

C

24 – Volt Common

Y1

First Stage Compressor

G

Fan

THERMOSTAT

R

24 – Volt Hot

W3

Third Stage Heat

C

24 – Volt Common

R

24 – Volt Hot

Y1

Single Stage Compressor

VARIABLE SPEED

MODULATING

FURNACE CONTROL

G

Fan

VARIABLE SPEED

MODULATING

FURNACE

Y/Y2

Second or Full

Stage Compressor

HUM

Dehumidification-

Open on Humidity Rise

W

Modulating Heat

Move HUMIDISTAT

jumper to “YES”

if humidistat is to be used.

ID MODELS OD MODELS

YZH

H*8B

Change Hot Heat Pump

jumper on the heat pump

control to “ON”

A015-001

S1-THSU32HP7b

Fault

Y2

Second Stage

Compressor

W2

Second Stage Heat

W1/O/B

First Stage Heat

HUM

DHUM

Jumper 1 must be set

to “HEATPUMP”

Jumper 2 must be set

to “O”

Jumper 3 must be set

to “GAS”

Setup Step 50 “Dual

Fuel” must be set

“External”

Change “FFuel” jumper

on the heat pump control

to ‘ON”

YPLC

LPLC

CPLC

TPLC

YP9C

LP9C

CP9C

TP9C

YZF060

H*6B60

Johnson Controls Unitary Products 19

835966-UIM-G-0716

FIGURE 20: Thermostat Wiring – Two-Stage Heat Pump - Variable Speed Modulating Furnace

O

Reversing Valve

Energized in Cool

C

24 – Volt Common

R

24 – Volt Hot

W1 OUT

First Stage Heat

W2 OUT

Second Stage Heat

Y2 OUT

Second Stage Compressor

Y1

Single Stage Compressor

X/L

Malfunction Light

Y2

Second Stage Compressor

W

Auxiliary Heat

BS

Bonnet Sensor

BSG

Bonnet Sensor

YORKGUARD VI

CONTROL

TWO STAGE

HEAT PUMP

Bonnet Sensor

(Optional)

C

24 – Volt Common

R

24 – Volt Hot

Y1

Single Stage Compressor

VARIABLE SPEED

MODULATING

FURNACE CONTROL

G

Fan

VARIABLE SPEED

MODULATING

FURNACE

Y/Y2

Second or Full

Stage Compressor

HUM

Dehumidification-

Open on Humidity Rise

W

Modulating Heat

Move HUMIDISTAT

jumper to “YES”

if humidistat is to be used.

C

24 – Volt Common

R

24 – Volt Hot

Y1

First Stage Compressor

Y2

Second Stage Compressor

G

Fan

THERMOSTAT

C

24 – Volt Common

Y

First Stage Compressor

O/B

Reversing Valve

L

Malfunction Light

Y2

Second Stage Compressor

G

Fan

*PP32U70124

THERMOSTAT

E

Emergency Heat

R

24 – Volt Hot

(Heat XFMR)

RC

24 – Volt Hot

(Cool XFMR)

AUX

Auxiliary Heat

Thermostat Installer Setup

0170-System Type-

must be set to 12

3 Heat/2 Heat Pump

Thermostat Installer Setup

0190-Changeover Valve-

must be set to 0

O/B terminal

Energized in Cooling

Thermostat Installer Setup

0200-Backup Heat Source-

must be set to 1

Heat Pump Backup Heat

Source is Fossil Fuel

External Humidistat

(Optional)

Open on Humidity Rise

Thermostat Installer Setup

0210-External Fossil Fuel

Kit- must be set to 1

Heat Pump Control

is Controlling Heat Pump

Backup Heat

Change Hot Heat Pump

jumper on the heat pump

control to “ON”

A016-001

S1-THPU32HP7b

W3/Aux

Auxiliary Output

W1/OB

First Stage Heat

W2

Second Stage Heat

Jumper 1 must be

set to “Gas”

Jumper 2 must be

set to “O”

Jumper 3 must be

set to “HP”

Can use “W3/Aux”

output to control

dehumidification

if desired

Duel Fuel setting

must be “External”

HP 28C Two Stage Heat Pump - Variable Speed Modulating Furnace (With Hot Heat Pump Operation)

Change “FFuel” jumper

on the heat pump control

to “ON”

ID MODELS

YPLC

LPLC

CPLC

TPLC

YP9C

LP9C

CP9C

TP9C

OD MODELS

YZH

H*8B

YZF060

H*6B60

20 Johnson Controls Unitary Products

835966-UIM-G-0716

SECTION VIII: SYSTEM START-UPENERGIZE CRANKCASE HEATERIn order to energize the crankcase heater, set the indoor cooling ther-mostat to the OFF position. Close the line power disconnect to the unit.

WITH POWER TO UNIT AND THERMOSTAT IN COOLING POSITION:

1. In the cooling cycle, discharge gas is pumped to the outdoor coilwhich is the condenser. The indoor coil is the evaporator.

2. If fan switch is in ON position, a circuit is made through blower relayto provide continuous blower operation.

3. With fan switch in AUTO position, a circuit is made from thermostatcooling contact through blower relay to provide blower operation.

4. System will cycle with thermostat demand to provide cooling asneeded.

SECTION IX: SYSTEM OPERATIONFor more information on the control operation, refer to the “OPERA-TION INSTRUCTIONS - DEMAND DEFROST CONTROL BOARD”publication.

REQUIRED CONTROL SETUP

1. Consult system wiring diagram to determine proper thermostat wir-ing for your system.

2. If hot heat pump configuration is desired, change HOT HEAT PUMPjumper to ON position. This setting MUST be set on the defrostboard.

3. If installation includes a fossil fuel furnace, change FUEL jumper toON position. This setting MUST be set on the defrost board.

4. Set low temperature cutout (LTCO), balance point (BP), switch point(SP), and Y2 Lock jumpers as desired. These settings may be mod-ified by communicating thermostat.

5. Verify proper system functionality. Confirm room thermostat opera-tion including fault code display capability.

6. Upon completion of installation, verify that no fault codes are storedin memory. Clear the fault code memory if necessary.

DEFROST OPERATIONThe following defrost curve selection jumper positions are set from fac-tory.

NOTE: For information on the 5 & 6 pins, refer to the “Operation Instructions - Demand Defrost Control Board” publication.

IMPORTANTAn attempt to start the compressor without at least 8 hours of crank-case heat will damage the compressor.

IMPORTANTThe following steps must be taken at the time of installation to insureproper system operation.

TABLE 3: Defrost Initiate Curves

Defrost Curve Selection Jumper Position PIN 1 PIN 2 PIN 3 PIN 4

16 SEER Heat Pump Model

2-Ton2.5-Ton3-Ton

3.5-Ton5-Ton

4-Ton – –

18 SEER Heat Pump Model

2-Ton4-Ton5-Ton

3-Ton –

FIGURE 21: Heat Pump Flow Diagram

.

FLOW RATER

(Cooling)

COOLING CYCLE FLOW

HEATING CYCLE FLOW

INDOOR COIL

4-WAY

REVERSING

VALVE

SUCTION

ACCUMULATOR

COMPRESSOR

OUTDOOR

COIL

FIELD CONNECTED LINE

FILTER DRYER

(Solid core)

LIQUID

SENSOR

FIELD CONNECTED LINE

FLOW RATER

(Heating)

A019-001

Johnson Controls Unitary Products 21

835966-UIM-G-0716

SECTION X: INSTRUCTING THE OWNERAssist owner with processing warranty cards and/or online registration.Review Owners Guide and provide a copy to the owner and guidanceon proper operation and maintenance. Instruct the owner or the opera-tor how to start, stop and adjust temperature setting.

When applicable, instruct the owner that the compressor is equippedwith a crankcase heater to prevent the migration of refrigerant to thecompressor during the “OFF” cycle. The heater is energized only whenthe unit is not running. If the main switch is disconnected for long peri-ods of shut down, do not attempt to start the unit until 8 hours after theswitch has been connected. This will allow sufficient time for all liquidrefrigerant to be driven out of the compressor.

The installer should also instruct the owner on proper operation andmaintenance of all other system components.

MAINTENANCE1. Dirt should not be allowed to accumulate on the outdoor coils or

other parts in the air circuit. Clean as often as necessary to keep theunit clean. Use a brush, vacuum cleaner attachment, or other suit-able means.

2. The outdoor fan motor is permanently lubricated and does notrequire periodic oiling.

3. If the coil needs to be cleaned, it should be washed with CalgonCoilclean (mix one part Coilclean to seven parts water). Allow solu-tion to remain on coil for 30 minutes before rinsing with clean water.Solution should not be permitted to come in contact with paintedsurfaces.

4. Refer to the furnace or air handler instructions for filter and blowermotor maintenance.

5. The indoor coil and drain pan should be inspected and cleaned reg-ularly to prevent odors and assure proper drainage.

SUBCOOLING CHARGE TABLE IS ON THE CORNER POSTOF THE OUTDOOR UNIT.

CAUTIONIT IS UNLAWFUL TO KNOWINGLY VENT, RELEASE OR DIS-CHARGE REFRIGERANT INTO THE OPEN AIR DURING REPAIR,SERVICE, MAINTENANCE OR THE FINAL DISPOSAL OF THISUNIT.

!

22 Johnson Controls Unitary Products

835966-UIM-G-0716

SECTION XI: WIRING DIAGRAM.

FIGURE 22: Wiring Diagram - Single Stage

20

8 -

23

0V

LA

DD

ER

DIA

GR

AM

US

E

CO

PP

ER

CO

ND

UC

TO

RS

ON

LY

208-2

30 V

AC

60 H

z1 P

HA

SE

SU

PP

LY

WIR

ING

DIA

GR

AM

S

C

R

FA

N M

OT

OR

63

54

21

S

C

R

CO

MP

RE

SS

OR

GN

D

LE

GE

ND

AS

- A

MB

IEN

T S

EN

SO

R

CA

P -

CA

PA

CIT

OR

CO

MM

- C

OM

MU

NIC

AT

ION

CO

MP

- C

OM

PR

ES

SO

R

CC

H -

CR

AN

KC

AS

E H

EA

TE

R

CC

- C

ON

TA

CT

OR

CO

IL

DS

- D

ISC

HA

RG

E S

EN

SO

R

HP

S -

HIG

H P

RE

SS

SW

ITC

H

LS

- L

IQU

ID S

EN

SO

R

LP

S -

LO

W P

RE

SS

SW

ITC

H

OF

M -

OU

TD

OO

R F

AN

MO

TO

R

RV

- R

EV

ER

SIN

G V

ALV

E

SC

- S

TA

RT

CA

PA

CIT

OR

SR

- S

TA

RT

RE

LA

Y

CO

LO

R C

OD

E

BLK

- B

LA

CK

BLK

/PN

K -

BLA

CK

/PIN

K

BLU

- B

LU

E

BR

N -

BR

OW

N

BR

N/P

NK

-

BR

OW

N/P

INK

BR

N/W

HT

-

BR

OW

N/W

HIT

E

GR

N -

GR

EE

N

GR

Y -

GR

EY

OR

G -

OR

AN

GE

PU

R -

PU

RP

LE

RE

D -

RE

D

WH

T -

WH

ITE

YE

L -

YE

LLO

W

Y/B

-

YE

LLO

W/B

LA

CK

D

AN

GE

R -

SH

OC

K H

AZ

AR

D T

UR

N O

FF

ELE

CT

RIC

AL P

OW

ER

BE

FO

RE

SE

RV

ICIN

GT

O P

RE

VE

NT

PO

SS

IBLE

DA

MA

GE

TO

TH

E E

QU

IPM

EN

TA

ND

PO

SS

IBLE

PE

RS

ON

AL IN

JU

RY

.

CA

UT

ION

TO

PR

EV

EN

T E

LE

CT

RIC

AL S

HO

CK

OP

EN

RE

MO

TE

DIS

CO

NN

EC

T S

O E

LE

CT

RIC

AL S

UP

PLY

TO

HE

AT

PU

MP

IS

SH

UT

OF

F.

C

OM

PO

NE

NT

S S

HO

WN

IN

DA

SH

LIN

ES

A

RE

OP

TIO

NA

L.

D

UA

L C

AP

AC

ITO

R S

HO

WN

. S

EP

AR

AT

E C

AP

AC

ITO

RS

MA

Y B

E U

SE

D O

N A

CT

UA

L U

NIT

.

W

IRIN

G M

US

T C

ON

FO

RM

TO

N

AT

ION

AL A

ND

LO

CA

L C

OD

ES

.

IF

AN

Y O

F T

HE

OR

IGIN

AL W

IRE

SU

PP

LIE

D W

ITH

TH

IS U

NIT

MU

ST

BE

RE

PLA

CE

D, IT

M

US

T B

E R

EP

LA

CE

D W

ITH

105

C T

HE

RM

OP

LA

ST

IC O

R IT

S E

QU

IVA

LE

NT

.

W

HE

RE

PO

WE

R S

UP

PLY

HA

S O

NE

(1)

230

V

OLT

CO

ND

UC

TO

R A

ND

ON

E (

1)

NE

UT

RA

L C

ON

DU

CT

OR

, C

ON

NE

CT

L2 O

F C

ON

TA

CT

OR

T

O N

EU

TR

AL.

1 2 3 4 5

HIG

H V

OLT

AG

E F

AC

TO

RY

WIR

ING

LO

W V

OLT

AG

E F

AC

TO

RY

WIR

ING

OP

TIO

NA

L W

IRIN

G

FIE

LD

WIR

ING

, LIN

E V

OLT

AG

E

C

M1

M2

M

HPS

HPS

C

Y1

Y2

O

W

X/L

R

BSG

BS

Y2 OUT

W2 OUT

W1 OUT

RV

RV

G

LP

S

LP

S

L1

OD

F

CC

H

LLG

LL

AMB

AMBG

DIS

DISG

DE

FR

OS

T C

ON

TR

OL

A

R

C

BA

R

C

B

CO

MM

CO

MM

C

M1

M2

M

HPS

HPS

C

Y1

Y2

O

W

X/L

R

BSG

BS

Y2 OUT

W2 OUT

W1 OUT

RV

RV

G

LP

S

LP

S

L1

OD

F

CC

H

LLG

LL

AMB

AMBG

DIS

DISG

DE

FR

OS

T C

ON

TR

OL

A R

C

B

A R

C

B

CO

MM

CO

MM

SE

E U

NIT

INS

TA

LLA

TIO

NIN

ST

RU

CT

ION

SF

OR

LO

W V

OLT

AG

ET

ER

MIN

AT

ION

S

L2

CC

BRN/PNK

BRN/PNK

BLK

GRY

BLK

/PN

K

WH

TS

EE

UN

ITIN

ST

ALLA

TIO

NIN

ST

RU

CT

ION

S F

OR

CO

MM

UN

ICA

TIO

NT

ER

MIN

AT

ION

S

BLK

RE

D

GR

N

OF

M

BR

N/W

HT

BR

N

RE

D1

3 6 BLU

BLU

WHT

WHT

RED

RED

S

C

R

CO

MP

L1

T1

BLK

L1

CC

L2

BLK

YEL

ORG

WHT

PUR

RED

Y/B

Y/B

BLU

GRY

BRN

BLK

/PN

K

BLK

BLK

RV

BLK

BLK

YE

L

BLK

LP

S

HP

S

DS

AS

LS

BR

N

RE

D

CA

P

H

C

F

RE

D

SE

E U

NIT

INS

TA

LLA

TIO

NIN

ST

RU

CT

ION

SF

OR

LO

W V

OLT

AG

ET

ER

MIN

AT

ION

S

BRN/PNK

BRN/PNK

BLK

GRY

BLK

YEL

ORG

WHT

PUR

RED

Y/B

Y/B

BLU

GRY

BRN

HP

S

BLK

/PN

K

BLK

/PN

K

BLK

BLK

RV

YE

L

BLK

LP

S

L1

L2

T1

T2

CC

CA

P

HCF

WH

TS

EE

UN

ITIN

ST

ALLA

TIO

NIN

ST

RU

CT

ION

S F

OR

CO

MM

UN

ICA

TIO

NT

ER

MIN

AT

ION

S

BLK

RE

D

GR

N

BLK

BR

N

GR

N

RE

D

BLK

RED

BRN/WHT

BLK

BRN

RED

BLU

BLU

WHT

WHT

RED

RED

LS

AS

DS

505195-U

WD

-C-0

513

T2

CC

S

C

RR

ED

CC

H

OR

G

OR

G

CCH

OR

G

ORG

RED

SC

SR

SR

52

1

BLU

BLU

ST

AR

TC

AP

ST

AR

TR

ELA

Y

BLU

BLU

Johnson Controls Unitary Products 23

835966-UIM-G-0716

FIGURE 23: Wiring Diagram - 2 Stage with PSC Outdoor Fan Motor

208 -

230V

LA

DD

ER

DIA

GR

AM

US

E

CO

PP

ER

CO

ND

UC

TO

RS

ON

LY

208-2

30 V

AC

60 H

z1 P

HA

SE

SU

PP

LY

WIR

ING

DIA

GR

AM

S

C

R

FA

N M

OT

OR

63

54

21

S

C

R

CO

MP

RE

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OR

GN

D

LE

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ND

AS

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MB

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EN

SO

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CA

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CA

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CIT

OR

CO

MM

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OM

MU

NIC

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ION

CO

MP

- C

OM

PR

ES

SO

R

CC

H -

CR

AN

KC

AS

E H

EA

TE

R

CC

- C

ON

TA

CT

OR

CO

IL

DS

- D

ISC

HA

RG

E S

EN

SO

R

HP

S -

HIG

H P

RE

SS

SW

ITC

H

IR -

IS

OLA

TIO

N R

ELA

Y

LS

- L

IQU

ID S

EN

SO

R

LP

S -

LO

W P

RE

SS

SW

ITC

H

OF

M -

OU

TD

OO

R F

AN

MO

TO

R

RV

- R

EV

ER

SIN

G V

ALV

E

SC

- S

TA

RT

CA

PA

CIT

OR

SR

- S

TA

RT

RE

LA

Y

XF

RM

- T

RA

NS

FO

RM

ER

CO

LO

R C

OD

E

BLK

- B

LA

CK

BLK

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K -

BLA

CK

/PIN

K

BLU

- B

LU

E

BR

N -

BR

OW

N

BLU

/YE

L

BLU

E/Y

ELLO

W

BR

N/P

NK

-

BR

OW

N/P

INK

BR

N/W

HT

-

BR

OW

N/W

HIT

E

GR

N -

GR

EE

N

GR

Y -

GR

EY

OR

G -

OR

AN

GE

PU

R -

PU

RP

LE

RE

D -

RE

D

SLV

- S

ILV

ER

WH

T -

WH

ITE

YE

L -

YE

LLO

W

Y/B

-

YE

LLO

W/B

LA

CK

D

AN

GE

R -

SH

OC

K H

AZ

AR

D T

UR

N O

FF

ELE

CT

RIC

AL P

OW

ER

BE

FO

RE

SE

RV

ICIN

GT

O P

RE

VE

NT

PO

SS

IBLE

DA

MA

GE

TO

TH

E E

QU

IPM

EN

TA

ND

PO

SS

IBLE

PE

RS

ON

AL IN

JU

RY

.

C

AU

TIO

N T

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RE

VE

NT

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CT

RIC

AL S

HO

CK

OP

EN

RE

MO

TE

DIS

CO

NN

EC

T S

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LE

CT

RIC

AL S

UP

PLY

TO

HE

AT

PU

MP

IS

SH

UT

OF

F.

C

OM

PO

NE

NT

S S

HO

WN

IN

DA

SH

LIN

ES

A

RE

OP

TIO

NA

L.

D

UA

L C

AP

AC

ITO

R S

HO

WN

. S

EP

AR

AT

E C

AP

AC

ITO

RS

MA

Y B

E U

SE

D O

N A

CT

UA

L U

NIT

.

W

IRIN

G M

US

T C

ON

FO

RM

TO

N

AT

ION

AL A

ND

LO

CA

L C

OD

ES

.

IF

AN

Y O

F T

HE

OR

IGIN

AL W

IRE

SU

PP

LIE

D W

ITH

TH

IS U

NIT

MU

ST

BE

RE

PLA

CE

D, IT

M

US

T B

E R

EP

LA

CE

D W

ITH

105

C T

HE

RM

OP

LA

ST

IC O

R IT

S E

QU

IVA

LE

NT

.

W

HE

RE

PO

WE

R S

UP

PLY

HA

S O

NE

(1)

230

V

OLT

CO

ND

UC

TO

R A

ND

ON

E (

1)

NE

UT

RA

L C

ON

DU

CT

OR

, C

ON

NE

CT

L2 O

F C

ON

TA

CT

OR

T

O N

EU

TR

AL.

1 2 3 4 5

HIG

H V

OLT

AG

E F

AC

TO

RY

WIR

ING

LO

W V

OLT

AG

E F

AC

TO

RY

WIR

ING

OP

TIO

NA

L W

IRIN

G

FIE

LD

WIR

ING

, LIN

E V

OLT

AG

E

C

M1

M2

M

HPS

HPS

C

Y1

Y2

O

W

X/L

R

BSG

BS

Y2 OUT

W2 OUT

W1 OUT

RV

RV

G

LP

S

LP

S

L1

OD

F

CC

H

LLG

LL

AMB

AMBG

DIS

DISG

DE

FR

OS

T C

ON

TR

OL

A R

C

B

A R

C

B

CO

MM

CO

MM

C

M1

M2

M

HPS

HPS

C

Y1

Y2

O

W

X/L

R

BSG

BS

Y2 OUT

W2 OUT

W1 OUT

RV

RV

G

LP

S

LP

S

L1

OD

F

CC

H

LLG

LL

AMB

AMBG

DIS

DISG

DE

FR

OS

T C

ON

TR

OL

A R

C

B

A R

C

B

CO

MM

CO

MM

SE

E U

NIT

INS

TA

LLA

TIO

NIN

ST

RU

CT

ION

SF

OR

LO

W V

OLT

AG

ET

ER

MIN

AT

ION

S

L2

CC

BRN/PNK

BRN/PNK

BLK

GRY

ORG

BLK

/PN

K

WH

TS

EE

UN

ITIN

ST

ALLA

TIO

NIN

ST

RU

CT

ION

S F

OR

CO

MM

UN

ICA

TIO

NT

ER

MIN

AT

ION

S

BLK

RE

D

GR

N

OF

M

BR

N/W

HT

BR

N

RE

D1

3 6 BLU

BLU

WHT

WHT

RED

RED

230V

24V

XF

MR

IR

12 4

3

BLU

S

C

R

CO

MP

L1

T1

BLK

BLK

L1

CC

L2

BLK

YEL

BLU/YEL

ORG

WHT

PUR

RED

Y/B

Y/B

BLU

GRY

BRN

BLK

/PN

K

BLK

BLK

RV

BLU

BLU

BR

N

OR

G

BLK

BLK

YE

L

BLK

LP

S

HP

S

DS

AS

LS

RE

D

BR

N

RE

D

CA

PA

CIT

OR

H

C

F

RE

D

2 S

TA

GE

CO

MP

RS

OL C

OIL

SE

E U

NIT

INS

TA

LLA

TIO

NIN

ST

RU

CT

ION

SF

OR

LO

W V

OLT

AG

ET

ER

MIN

AT

ION

S

BRN/PNK

BRN/PNK

BLK

GRY

ORG

BLK

YEL

BLU/YEL

ORG

WHT

PUR

RED

Y/B

Y/B

BLU

GRY

BRN

HP

S

BLK

/PN

K

BLK

/PN

K

BLK

BLK

RV

YE

L

BLK

LP

S

L1

L2

T1

T2

CC

230V

24V

XF

MR

CA

P

HCF

12 4

3

WH

TS

EE

UN

ITIN

ST

ALLA

TIO

NIN

ST

RU

CT

ION

S F

OR

CO

MM

UN

ICA

TIO

NT

ER

MIN

AT

ION

S

BLK

RE

D

GR

N

2 S

TA

GE

CO

MP

SO

L C

OIL

BLK

BR

N

GR

N

RE

D

BLK

RED

BRN/WHT

BLK

BRN

RED

BR

N

BLU

BLU

BLU RE

D

BLK

BLU

BLU

WHT

WHT

RED

RED

LS

AS

DS

509412-U

WD

-C-0

513

T2

CC

S

C

RR

ED

CC

H

OR

G

OR

G

CCH

OR

G

ORG

RED

IR

24 Johnson Controls Unitary Products

835966-UIM-G-0716

FIGURE 24: Wiring Diagram - 2 Stage with ECM Outdoor Fan Motor

208 -

230V

LA

DD

ER

DIA

GR

AM

US

E

CO

PP

ER

CO

ND

UC

TO

RS

ON

LY

208-2

30 V

AC

60 H

z1 P

HA

SE

SU

PP

LY

WIR

ING

DIA

GR

AM

S

C

R

FA

N M

OT

OR

63

54

21

S

C

R

CO

MP

RE

SS

OR

VS

CO

NT

RO

L

GN

D

LE

GE

ND

AS

- A

MB

IEN

T S

EN

SO

R

CA

P -

CA

PA

CIT

OR

CO

MM

- C

OM

MU

NIC

AT

ION

CO

MP

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OM

PR

ES

SO

R

CC

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ON

TA

CT

OR

CO

IL

DS

- D

ISC

HA

RG

E S

EN

SO

R

HP

S -

HIG

H P

RE

SS

SW

ITC

H

IR -

IS

OLA

TIO

N R

ELA

Y

LS

- L

IQU

ID S

EN

SO

R

LP

S -

LO

W P

RE

SS

SW

ITC

H

OF

M -

OU

TD

OO

R F

AN

MO

TO

R

RV

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EV

ER

SIN

G V

ALV

E

SC

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TA

RT

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PA

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OR

SR

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TA

RT

RE

LA

Y

VS

- V

AR

IAB

LE

SP

EE

D

XF

RM

- T

RA

NS

FO

RM

ER

CO

LO

R C

OD

E

BLK

- B

LA

CK

BLK

/PN

K -

BLA

CK

/PIN

K

BLU

- B

LU

E

BR

N -

BR

OW

N

BLU

/YE

L

BLU

E/Y

ELLO

W

BR

N/P

NK

-

BR

OW

N/P

INK

BR

N/W

HT

-

BR

OW

N/W

HIT

E

GR

N -

GR

EE

N

GR

Y -

GR

EY

OR

G -

OR

AN

GE

PU

R -

PU

RP

LE

RE

D -

RE

D

SLV

- S

ILV

ER

WH

T -

WH

ITE

YE

L -

YE

LLO

W

Y/B

-

YE

LLO

W/B

LA

CK

D

AN

GE

R -

SH

OC

K H

AZ

AR

D T

UR

N O

FF

ELE

CT

RIC

AL P

OW

ER

BE

FO

RE

SE

RV

ICIN

GT

O P

RE

VE

NT

PO

SS

IBLE

DA

MA

GE

TO

TH

E E

QU

IPM

EN

TA

ND

PO

SS

IBLE

PE

RS

ON

AL IN

JU

RY

.

C

AU

TIO

N T

O P

RE

VE

NT

ELE

CT

RIC

AL S

HO

CK

OP

EN

RE

MO

TE

DIS

CO

NN

EC

T S

O E

LE

CT

RIC

AL S

UP

PLY

TO

HE

AT

PU

MP

IS

SH

UT

OF

F.

C

OM

PO

NE

NT

S S

HO

WN

IN

DA

SH

LIN

ES

A

RE

OP

TIO

NA

L.

D

UA

L C

AP

AC

ITO

R S

HO

WN

. S

EP

AR

AT

E C

AP

AC

ITO

RS

MA

Y B

E U

SE

D O

N A

CT

UA

L U

NIT

.

W

IRIN

G M

US

T C

ON

FO

RM

TO

N

AT

ION

AL A

ND

LO

CA

L C

OD

ES

.

IF

AN

Y O

F T

HE

OR

IGIN

AL W

IRE

SU

PP

LIE

D W

ITH

TH

IS U

NIT

MU

ST

BE

RE

PLA

CE

D, IT

M

US

T B

E R

EP

LA

CE

D W

ITH

105

C T

HE

RM

OP

LA

ST

IC O

R IT

S E

QU

IVA

LE

NT

.

W

HE

RE

PO

WE

R S

UP

PLY

HA

S O

NE

(1)

230

V

OLT

CO

ND

UC

TO

R A

ND

ON

E (

1)

NE

UT

RA

L C

ON

DU

CT

OR

, C

ON

NE

CT

L2 O

F C

ON

TA

CT

OR

T

O N

EU

TR

AL.

1 2 3 4 5

HIG

H V

OLT

AG

E F

AC

TO

RY

WIR

ING

LO

W V

OLT

AG

E F

AC

TO

RY

WIR

ING

OP

TIO

NA

L W

IRIN

G

FIE

LD

WIR

ING

, LIN

E V

OLT

AG

E

C

M1

M2

M

HPS

HPS

C

Y1

Y2

O

W

X/L

R

BSG

BS

Y2 OUT

W2 OUT

W1 OUT

RV

RV

G

LP

S

LP

S

L1

OD

F

CC

H

LLG

LL

AMB

AMBG

DIS

DISG

DE

FR

OS

T C

ON

TR

OL

A R

C

B

A R

C

B

CO

MM

CO

MM

C

M1

M2

M

HPS

HPS

C

Y1

Y2

O

W

X/L

R

BSG

BS

Y2 OUT

W2 OUT

W1 OUT

RV

RV

G

LP

S

LP

S

L1

OD

F

CC

H

LLG

LL

AMB

AMBG

DIS

DISG

DE

FR

OS

T C

ON

TR

OL

A R

C

B

A R

C

B

CO

MM

CO

MM

SE

E U

NIT

INS

TA

LLA

TIO

NIN

ST

RU

CT

ION

SF

OR

LO

W V

OLT

AG

ET

ER

MIN

AT

ION

S

L2

CC

BRN/PNK

BRN/PNK

BLK

GRY

ORG

BLK

/PN

K

WH

TS

EE

UN

ITIN

ST

ALLA

TIO

NIN

ST

RU

CT

ION

S F

OR

CO

MM

UN

ICA

TIO

NT

ER

MIN

AT

ION

S

BLK

RE

D

GR

N

VS

CO

NT

RO

LB

LK

BLU

RE

D

13 6

OF

MV

S

BLK

BLU

RE

D

BLU

BLU

WHT

WHT

RED

RED

230V

24V

XF

MR

IR

12 4

3

BLU

S

C

R

CO

MP

L1

T1

BLK

BLK

L1

CC

L2

BLK

YEL

BLU/YEL

ORG

WHT

PUR

RED

Y/B

Y/B

BLU

GRY

BRN

BLK

/PN

K

BLK

BLK

YE

L

RV

BLU

BLU

BR

N

OR

G

BLK

BLU

YE

L

YE

L

YE

L

LP

S

HP

S

DS

AS

LS

RE

D

BR

N

RE

D

CA

PA

CIT

OR

H

C

F

RE

D

2 S

TA

GE

CO

MP

RS

OL C

OIL

SE

E U

NIT

INS

TA

LLA

TIO

NIN

ST

RU

CT

ION

SF

OR

LO

W V

OLT

AG

ET

ER

MIN

AT

ION

S

BRN/PNK

BRN/PNK

BLK

GRY

ORG

BLK

YEL

BLU/YEL

ORG

WHT

PUR

RED

Y/B

Y/B

BLU

GRY

BRN

HP

S

BLK

/PN

K

BLK

/PN

K

BLK

BLK

YE

LR

V

YE

L

YE

L

LP

S

L1

L2

T1

T2

CC

230V

24V

XF

MR

CA

P

HCF

12 4

3

WH

TS

EE

UN

ITIN

ST

ALLA

TIO

NIN

ST

RU

CT

ION

S F

OR

CO

MM

UN

ICA

TIO

NT

ER

MIN

AT

ION

S

BLK

RE

D

GR

N

2 S

TA

GE

CO

MP

SO

L C

OIL

BLK

BLU

SLV

RE

D

BLK

RED

BLU

BR

N

BLK

BLU

RE

D

BLK

BRN

RED

BR

N

BLU

BLU

BLU RE

D

BLK

BLU

BLU

WHT

WHT

RED

RED

DS

AS

LS

509413-U

WD

-C-0

513

T2

IR

Johnson Controls Unitary Products 25

835966-UIM-G-0716

NOTES

26 Johnson Controls Unitary Products

835966-UIM-G-0716

SECTION XII: START UP SHEET

Heat Pump and Supplementary Heat Start-Up Sheet

Proper start-up is critical to customer comfort and equipment longevity

Name Address

City State or Province Zip or Postal Code

Indoor Unit Model # Indoor Unit Serial #

Indoor Coil Model # Indoor Coil Serial #

Upflow Downflow Horizontal Left Horizontal Right

Unit is level

Venting system properly sized, within the limitations of the charts in the installation instructions.

Condensate drain for indoor coil properly connected

Filter Type

Intake Size

Exhaust Size

# of 90 Degree Ells # 0f 45 Degree Ells Length

Length # 0f 45 Degree Ells# of 90 Degree Ells

Polarity is correct (120vac indoor units) black is L1 (hot), white is N (neutral)Ground wire is connected

Indoor unit (volts AC)

Low voltage values: "R" and "C" at Indoor unit control board (volts AC)

Thermostat Type Other System Equipment and Accessories

Owner Information

Equipment Data

Venting (if applicable)

Electrical: Line Voltage

Outdoor Unit Model # Outdoor Unit Serial #

Filter, Thermostat, Accessories

Filter Location(s)

Connections -- Per Installation Instructions and Local Codes

Gas piping is connected (if applicable)

Supply plenum and return ducts are connected and sealed

Filter Size

Vent system is connected (if applicable)

Thermostat wiring complete

Heat anticipator is set to the recommended value listed in the Installation Instructions

Electrical: Low Voltage

Technician Performing Start-Up Installing Contractor Name

Start-Up Date

Condensate drain for furnace (if applicable)

Refrigerant piping complete and leak tested

Outdoor unit (volts AC) Overcurrent Protection Breaker / Fuses Amperes

"R" and "C" Outdoor unit control board (volts AC)

Supplementary Heating Set-Up

Natural Gas LP Gas (Requires LP Conversion Kit)Electric Air Handler

LP Gas Conversion Kit Part # Used

LP Kit Installed By

Inlet Gas Pressure (in. w.c.")

Calculated input in btuh - clock the gas meter (Nat Gas Only)

Manifold Gas Pressure (in. w.c.")

Heating Type

Heat anticipator recommended value

Electric Heat Kit Part # (if applicable) KW installed

Page 1 of 2 (7/7 16)

Rated BTU/H (furnaces)

Johnson Controls Unitary Products 27

Supply static after indoor coil (in w.c.")

Return Static (in w.c.") before filter

Total External Static Pressure

Low

1 2

Medium Low Medium

3 4

Medium High High

5

A B DC

A B C D

Air Side: System Total External Static PressureSupply static before indoor coil (in w.c.")

Return Static (in w.c.") after filter (furnace side)

Cooling &

Heat Pump Indoor

Blower Set-Up

COOL

ADJUSTECM

X-13

PSC

A B C DDELAY

Supplementary Heating Indoor

Blower Set-Up

ECM

X-13

PSC

A

1 5

High

2 3 4

Low Medium Low Medium Medium

High

DB C

Outside Air: Dry Bulb

Temperature DropReturn Air:Dry Bulb

Supply Air: Dry Bulb

Wet BulbWet Bulb

Temperature Rise

Defrost Control Board

Demand DefrostYorkGuard VI Time and Temperature

Maximum Rated ESP (in w.c.")

Low Temp Cut Out Balance Point Defrost Curve Y2 Lock FFUEL Switch Point

Hot Heat Pump

Fill in the information ie.. "ON", "OFF" or the appropriate "Value" for the fields that apply to the defrost control board installed

Run Time: Time and Temperature board only 30, 60 or 90 minutesBonnet Sensor Present

HEAT

Refrigerant Charge and Metering DeviceTXV Fixed OrificeR-410A

Oz.

# 45s# Elbows

TXV #

Orifice Size Liquid Line Temp

Subcooling Superheat

High Side Pressure Low Side PressureSuction Line Temp

Additional Lineset Length Adder per foot - lbs.

Total Added - lbs. Oz.

Cycle TestOperate the unit through several heating cycles from the thermostat, noting and correcting any problemsOperate the unit through continuous fan cycles from the thermostat, noting and correcting any problemsOperate the unit through a cooling cycles, noting and correcting any problemsOperate the unit through an emergency heating cycles, noting and correcting any problems

Installation debris disposed of and indoor and outdoor areas cleaned up?Clean Up

Owner Education

Explain operation of system to equipment owner

Explain the importance of regular filter replacement and equipment maintenance

Provide owner with the owner's manual

Explain thermostat use and programming (if applicable) to owner

Comments Section

Return Air:Dry Bulb

Supply Air: Dry Bulb

Wet BulbWet Bulb

Page 2 of 2 (7/7 16)

Subject to change without notice. Published in U.S.A. 835966-UIM-G-0716Copyright © 2016 by Johnson Controls, Inc. All rights reserved. Supersedes: 835966-UIM-F-0315

York International Corp.5005 York Drive

Norman, OK 73069