460 Volt Q4 Series

Read these instructions thoroughly before starting the installation. Followall precautions and warnings contained within these instructions and onthe unit.

These instructions are primarily intended to assist qualified individualsexperienced in the proper installation of heating and/or air conditioningappliances. Some local codes require licensed installation/service per-sonnel for this type equipment. All installations must be in accordancewith these instructions and with all applicable national and local codesand standards.

Installation InstructionsSingle Package Heat Pump

IMPORTANT

TM

2

TABLE OF CONTENTS

OWNER INFORMATION .......................................................................................................... 3

SPECIFICATIONS..................................................................................................................... 4

SAFETY CONSIDERATIONS ................................................................................................... 5• Labels, Tags. ............................................................................................................... 5• Pressures Within The System ..................................................................................... 5

INSTALLATION REQUIREMENTS .......................................................................................... 5• Equipment Check. ....................................................................................................... 5• Requirements and Codes ........................................................................................... 5• Unit Location ............................................................................................................... 5• Air Filters ..................................................................................................................... 5• Condensate Drain ...................................................................................................... 7

UNIT INSTALLATION ............................................................................................................... 7• Ground Level ............................................................................................................... 7• Rigging and Hoisting ................................................................................................... 7• Rooftop ....................................................................................................................... 8

AIR DUCTS ............................................................................................................................... 8• Unconditioned Spaces. .............................................................................................. 8• Acoustical Duct Work ................................................................................................. 8• Horizontal to Down flow Conversion ......................................................................... 8• Clearance ................................................................................................................... 9

ELECTRICAL WIRING ............................................................................................................ 9• Line Voltage ................................................................................................................ 9• Blower Speed .............................................................................................................. 9• Low Voltage Connections .......................................................................................... 9• Room Thermostat ...................................................................................................... 9• Defrost Cycle Timer ................................................................................................. 10

START-UP AND SYSTEM CHECK ........................................................................................ 10• Air Circulation ............................................................................................................ 11• System Cooling ........................................................................................................ 11• System Heating ........................................................................................................ 11

UNIT MAINTENANCE ............................................................................................................. 11• Refrigerant Charging ................................................................................................. 11• Routine Maintenance ................................................................................................ 11

BLOWER TABLE .................................................................................................................... 12

CHARGING CHARTS ........................................................................................................ 13-16

ACCESSORY KIT TABLE ...................................................................................................... 17

WIRING DIAGRAM ................................................................................................................. 18

3

It is the sole responsibility of the homeowner tomake certain that heat pump has been correctlyset up and adjusted to operate properly.

NORDYNE warrants the heat pump to be freefrom defects in material or workmanship for aperiod of one year. A warranty certificate withfull details is included with the heat pump. How-ever, NORDYNE will not be responsible for anycosts found necessary to correct problems dueto improper setup, improper installation, adjust-ments, improper operating procedure on thepart of the user, etc.

Some specific examples of service calls whichare not included in the limited warranty are:

1. Correcting wiring problems in the electricalcircuit supplying the heat pump.

WINTER HEATING

1. Outdoor air enters the heat pump.2. The cold, heat-transfer section (outdoor coil)

extracts the heat from the air as the refrigerantevaporates from a liquid to a cold gas.

3. The refrigerant, compressed to a hot gas bythe heat pump, carries the heat to the heat-transfer section (indoor coil).

4. The hot, heat-transfer section (indoor coil)releases the heat as the refrigerant condensesfrom a gas to a liquid.

5. The blower circulates the heat throughoutthe home via the supply duct.

6. The refrigerant returns to the outdoor coil andevaporates once again to absorb more heat.

SUMMER COOLING

1. Indoor air enters the return air duct.2. The cold, heat-transfer section (indoor coil)

extracts the heat from the air as the refrigerantevaporates from a liquid to a cold gas.

3. The refrigerant, drawn to the heat pump andcompressed to a hot gas, carries the heatoutdoors.

4. The hot, heat-transfer section (outdoor coil)releases the heat as the refrigerant condensesfrom a gas to a liquid.

5. The heat pump (outdoor fan) discharges theheat to the outside air.

6. The refrigerant returns to the indoor coil andevaporates once again to absorb more heat.

5

4

1

23

6

2

15

364

2. Resetting circuit breakers or other switches.

3. Adjusting or calibrating of thermostat.

To avoid misunderstandings at a later date,carefully review these responsibilities with yourdealer or service company.

The heat pump system will heat and cool yourhome and save your energy dollars.

During the summer, a heat pump cools a houseby absorbing heat from within the house andexhausting it outdoors. During the winter, a heatpump heats a house by absorbing heat outdoorsand exhausting it indoors. This is an efficientheating means because you pay for “moving”heat from outdoors to indoors, but do not pay togenerate the heat.

SECTION 1. OWNER INFORMATION

4

OPERATING INSTRUCTIONS

To Operate Your Heat Pump For Cooling —

1. Set the thermostat system switch to COOLand the thermostat fan switch to AUTO. (SeeFigure 1)

2. Set the thermostat temperature selector tothe desired cooling temperature. The outdoorunit fan, the indoor blower, and thecompressor will all cycle on and off to maintainthe indoor temperature at the desired coolinglevel.

NOTE: If the thermostat temperature level is re-adjusted, or if the thermostat system switch is re-positioned, the outdoor unit fan and thecompressor may not start immediately. Aprotective timer circuit holds the compressorand the outdoor fan off for approximately sixminutes following a previous operation or theinterruption of the main electric power

To Operate Your Heat Pump For Heating —

1. Set the thermostat system switch for HEATand the thermostat fan switch to AUTO. (SeeFigure 1)

2. Set the thermostat temperature selector tothe desired heating temperature. The outdoorunit fan, the indoor blower, and thecompressor will all cycle on and off tomaintain the indoor temperature at the desiredheating level.

NOTE: If the thermostat temperature level is re-adjusted, or if the thermostat system switch is re-positioned, the outdoor unit fan and thecompressor may not start immediately. Aprotective timer circuit holds the compressorand the outdoor fan off for approx-imately sixminutes following a previous operation or theinterruption of the main electrical power.

Emergency Heat — Some thermostats willinclude a system switch position termed EM HTor AUX HT, etc. This is a back-up heating modeto be used only if there is a suspected problem.With the system switch set to EM HT, etc., thecompressor and outdoor fan will be locked offand supplemental heat (electric resistanceheating) will be used as a source of heat.Sustained use of electric resistance heat inplace of the heat pump will result in an increasein electric utility costs.

Figure 1. Typical Thermostat

Defrost — During cold weather heatingoperation, the outdoor unit will develop a coatingof snow and ice on the heat transfer coil. This isnormal and the unit will periodically defrost itself.During the defrost cycle, the outdoor fan willstop, while the compressor continues to run andheat the outdoor coil, causing the snow and iceto melt. During defrost, there may be somesteam rise from the outdoor unit as the warm coilcauses some melted frost to evaporate.

SPECIFICATIONS

Model Series Q4 Single Package Heat Pumpsare designed for outdoor rooftop or ground levelslab installations. The units are shipped readyfor horizontal duct connections and are easilyconverted for down flow applications.

Figure 2. Thermostat Interlock System

Cooling Thermostat

FurnaceThermostat

Double ThrowDouble Pole Switch

To Furnace

R R

To Air Conditioneror Heat Pump

FAN SWITCH

TEMPERATURE SELECTOR

5

All models are shipped from the factory with thefollowing:

1. Zero clearance to combustibles2. Multi-speed direct-drive blower.3. Blower Speed Relay.4. Horizontal or Down flow duct connections.

The unit dimensions are shown in Figure 3.

Optional field-installed electric heater kits areavailable in 9 kw and 15 kw heating capacities.A separate installation instruction document forthe electric heaters and their applicationaccompanies this one. A two stage heat 24VACthermostat should be used with electric heaterkits installed.

SAFETY CONSIDERATIONS

It is the responsibility of the installer to ensurethat the installation is made in accordance withall applicable local and national codes.

! WARNING:Improper installation, service,adjustment, or maintenance may causeexplosion, fire, electrical shock or otherhazardous conditions which may resultin personal injury or property damage.Unless otherwise noted in theseinstructions, only factory authorizedkits or accessories may be used withthis product. Noncompliance may voidthe unit’s warranty.

Labels, Tags — When working with thisequipment, follow all precautions in theliterature, on tags, and on labels provided withthe unit and/or approved field installed kits.The type of hazard and severity are describedon each label or tag.

Pressures Within The System — Thisequipment contains liquid and gaseousrefrigerant under high pressure. Installation orservicing should only be performed by qualifiedtrained personnel thoroughly familiar with thistype equipment.

INSTALLATION REQUIREMENTS

Equipment Check — Before beginning theinstallation, verify that the unit model is correctfor the job. The unit model number is printed onthe data label. All units have been securelypackaged at the point of shipment. Afterunpacking the unit, carefully inspect it forapparent and concealed damage. Claims fordamage should be filed with the carrier by theconsignee.

Requirements and Codes — The installer mustcomply with all local codes and regulationswhich govern this type equipment. Local codesand regulations take precedence over anyrecommendations contained in theseinstructions. All electrical wiring must be madein accordance with local codes and regulationsand with the National Electric Code (ANSI/NFPA70) or in Canada the Canadian Electric CodePart 1 CSA C.22.1. Air Ducts must be installedin accordance with the standards of the NationalFire Protection Association “Standards forInstallation of Air Conditioning and VentilationSystems” (NFPA 90A), “Standard for Installationof Residence Type Warm Air Heating and AirConditioning Systems” (NFPA 90B), theseinstructions and all applicable local codes.

NFPA publications are available by writing:

National Fire Protection AssociationBatterymarch ParkQuincy, Maine 02269

Unit Location — The Q4 series heat pump isdesigned only for outdoor installations. Choosingthe location of the unit should be based onminimizing the length of the supply and returnducts. Consideration should also be given toavailability of electric power, service access,noise, and shade. Sufficient clearance forunobstructed airflow through the outdoor coilmust be maintained in order to achieve ratedperformance See Figure 4 for minimumclearances to obstructions.

Air Filter Requirements — Three phaseunits “Only” are supplied from the factory withan internal filter rack assembly. Air filters arenot supplied; a suitable air filter must be installedin the unit or in the return air system for all units.

6

Figure 3. Dimensions

24.9

13.5

16.0

12.0

13.3

13.516.0

12.0

CG

A

47.5

3/4" NPT FemaleDrain Connector

B

DOWNFLOWSUPPLY DUCT

OPENING

DOWNFLOWRETURN DUCT

OPENING

23.5

Top View

Side View Back View

Center of Gravity Height (in inches)Model No. C

with base rails without base railsQ4SA-036 340 28.0 26.0 35.0 31.3Q4SA-048 345 28.0 26.0 35.0 31.3Q4SA-060 400 29.5 26.5 39.0 35.3

A BUnit

Weight

1.25 Ø Power Entry

1.75 Ø Power Entry (Capped)

0.88 Ø Control Wiring Entry

23.6

27.2

30

1.8

4.00

13.5

16.0

14.7

13.516.0

13.45

11.75 22.7555.8

C

SUPPLY

4.0

CONDENSINGCOIL

5.0

8

FILTERACCESS PANEL3 PHASE ONLY

HORIZONTALRETURN DUCT

OPENING

7

Figure 4. Minimum Clearances

See Table 1a for internal filter size requirements.When utilizing an Economizer or Fresh AirEquipment, the factory installed filter rackassembly must be removed prior to installation.A suitable Air filter must be installed in the returnair system. Air filter pressure drop must notexceed 0.08 inches WC @300 fpm. Air filter(s)must be installed in the return air ductworkahead of the evaporator coil of this unit. Allreturn air to this unit must pass through thefilter(s) before entering this unit. (See RoutineMaintenance for Installation/Removal of airfilters).

Removal of Internal Filter Rack — Firstremove the Return Air Panel from the unit.Remove the height adjustment screw from theinside of the rack, and the (1) screw securingthe assembly to the coil located on the left legof the rack. The assembly can easily becollapsed and removed from the unit. SeeFigure 3a for filter rack securing screwlocations.

For single phase downflow installations only,an internal filter accessory kit can be ordered.For horizontal installations, the air filter systemmust be installed in the return air ductwork. Allreturn air to this unit must pass through thefilter(s) before entering the evaporator coil.

Condensate Drain — Condensate is removedfrom the unit through the 3/4" female pipe fittinglocated on the front side of the unit. (See Figure5.) Install a 2 inch condensate trap in the drainline of the same size and prime with water.When connecting rigid drain line, hold the femalefitting with a wrench to prevent twisting. Do notover tighten! Refer to local codes andrestrictions for proper condensate disposalrequirements.

UNIT INSTALLATION

Ground Level — When installing the unit atground level, provide a concrete mounting padseparate from the building foundation. The padmust be level to insure proper condensatedisposal and strong enough to support the unit’sweight. Refer to Figure 3. Make sure the slabis a minimum of 2" above the grade and in an areathat drains well (See Figure 6).

Rigging and Hoisting — The unit should belifted using slings and spreader bars. Thespreader bars are necessary to prevent damagingthe top of the unit’s cabinet. Make sure that thelifting equipment is adequate for the load. Referto Figure 3 for unit weights. Keep the unit in anupright position at all times. For rooftopinstallations, remove and discard the twosupports attached beneath the unit.

! WARNING:To avoid the risk of property damage orpersonal injury; it is the rigger’sresponsibility to insure that whatevermeans are used to hoist the unit aresafe and adequate.

36"

36"

6"

36"

72"

Figure 5. Condensate Drain

Figure 3a. Internal Filter Rack Location

SecuringScrew

Condensate Drain

8

! CAUTION:All panels must be securely in placewhen rigging and hoisting.

The rigging must be located outside the unit’scenter of gravity. Refer to Figure 3 for center ofgravity locations.

Rooftop — For rooftop installations use theappropriate accessory roof curb and follow allinstructions included with it. Make sure the twosupports beneath the unit have been removed.Locate the unit according to local building codesand ordinances. The curb must be level to insureproper condensate drainage (See Figure 7).

The roof must be capable of handling the weightof the unit. (See Figure 3) for unit weights.Reinforce the roof if required.

AIR DUCTS

This unit is designed only for use with a supplyand return duct. Air ducts should be installedin accordance with the standards of theNational Fire Protect ion Associat ion“Standard for Installation of Air ConditioningSystems” (NFPA 90A), “Standard forInstallation of Residence Type Warm AirHeating and Air Conditioning Systems” (NFPA90B), and all applicable local codes.

Design the duct work according to methodsdescribed by the National Warm Air Heating andAir Conditioning Association (ACCA). The ductsmust be properly sized not to exceed .2" w.c.pressure drop at 400 scfm per nominal ton ofcooling capacity.

Figure 6. Ground Level Installation Figure 7. Roof Top Installation

Duct work should be attached directly to the unitflanges for horizontal applications. On roof curbinstallations the ducts must be attached to thecurb hangers, not the unit.

Unconditioned Spaces — All duct workpassing through unconditioned space must beproperly insulated to minimize duct losses andprevent condensation. Use insulation with anouter vapor barrier. Refer to local codes forinsulation material requirements.

Acoustical Duct Work — Certain installationsmay require the use of acoustical lining insidethe supply duct work. Acoustical insulationmust be in accordance with the current revisionof the Sheet Metal and Air ConditioningContractors National Association (SMACNA)application standard for duct liners. Duct liningmust be UL classified batts or blankets with a firehazard classification of FHC-25/50 or less.Fiber duct work may be used in place of internalduct liners if the fiber duct work is in accordancewith the current revision of the SMACNAconstruction standard on fibrous glass ducts.Fibrous duct work and internal acoustical liningmust be NFPA Class 1 air ducts when tested perUL Standard 181 for Class 1 ducts.

Horizontal to Down flow Conversion — Theunit is shipped ready for horizontal ductconnections. If down flow ducts are required,the unit must be converted following the stepsbelow for both the supply and return ducts.

1) Locate the duct cap inside the duct openingsand remove the screw holding it in place.

2) Lift the cap out of the unit. (The cap can bepushed up from the bottom by reachingthrough the fork slot).

3) Cover the horizontal duct opening with thecap. The insulation will be on the indoor side.

2"

9

4) Fasten the cover with screws and seal toprevent air leakage.

Clearance — The Q4 Series is approved for 0inch clearance.

ELECTRICAL WIRING

General — Electrical power wiring must bemade in accordance with all applicable localcodes and ordinances, and with the currentrevision of the National Electric Code NFPA 70or in Canada CSA C.22.1 - Canadian ElectricalCode Part 1. If any of the original wire assupplied with the unit must be replaced, it mustbe replaced with material of the same gage andtemperature rating.

Line Voltage — Before proceeding with theelectrical connections, make certain that thevoltage, frequency, and phase of the supplysource are the same as those specified on theunit rating plate. Also verify that the serviceprovided by the utility is sufficient to handle theadditional load imposed by this equipment.

! WARNING:To avoid the risk of electrical shock,personal injury, or death, disconnectall electrical power to the unit beforeperforming any maintenance or service.The unit may have more than oneelectrical power supply.

See Figure 8 or the unit wiring label for properhigh and low voltage wiring. Make all electricalconnections in accordance with all applicablecodes and ordinances.

Use a separate branch electrical circuit for thisunit. A means of electrical disconnect must belocated within sight of and readily accessibilityto the unit. Internally mounted circuit breakersare available as field installed options. Thesecircuit breakers can be used as an electricaldisconnect.

Provide power supply (or supplies) for the unitin accordance with the unit wiring diagram, andthe unit rating plate. Connect the line-voltageleads to the corresponding terminals on thecontactor (or the circuit breaker when the fieldinstalled circuit breaker kits are used) inside the

control compartment. Use only copper wire forthe line voltage power supply to this unit. Useproper code agency listed conduit and a conduitconnector for connecting the supply wires to theunit and for obtaining proper grounding.Grounding may also be accomplished by usingthe grounding lug provided in the control box.

! WARNING:The unit cabinet must have anduninterrupted or unbroken electricalground to minimize personal injury if anelectrical fault should occur. Thisground may consist of electrical wire orapproved conduit when installed inaccordance with existing national orlocal codes.

Blower Speed — The blower speed is preset atthe factory for operation at the same speed forheating and cooling. For optimum systemperformance and comfort, it may be necessaryto change the factory set speed. To change theblower speed:

1. Disconnect all electrical power to the unitand remove the service panel.

2. Cut the wire tie holding the motor leadbundle. See Figure 9 for detailedinformation on the appropriate model andspeed desired.

! CAUTION:To avoid personal injury or propertydamage, make certain that the motorleads cannot come into contact withany uninsulated metal components ofthe unit.

Check all factory wiring per the unit wiringdiagram and inspect the factory wiringconnections to be sure none loosened duringshipping or installation.

Low Voltage Connections

Room Thermostat — Several options areavailable for a room thermostat depending onthe accessories installed with the unit. Theavailable thermostats recommended for usewith the Q4 units are listed with the accessories

10

in Table 5. Select a thermostat which operatesin conjunction with the installed accessories.The thermostat should be mounted about fivefeet above the ground on an inside wall. Thethermostat should be kept away from drafts,slamming doors, lamps, direct sunlight, or in linewith the supply air flow.

To install the thermostat:1. Position the sub base on an inside wall and

mark the mounting holes and thermostatcable openings.

2. Cut out the cable opening and route thethermostat cable from the unit’s low voltagecompartment to the thermostat location.The thermostat cable is supplied by theinstaller.

3. Connect the cable leads to the sub base orthermostat terminals and to the unit’s lowvoltage pigtails as shown in Figure 10. Asystem wiring diagram is also provided onthe inside of the control panel cover and inFigure 8 of these installation instructions.

4. Secure sub base or thermostat to the wallusing screws provided with the thermostat.

5. If sub base is used, install the correctthermostat housing to sub base.

6. Refer to thermostat instruction sheet forcomplete detailed mounting information.

Defrost Cycle Timer — The defrost cycle timercontrols the time interval of the hot gas defrostafter the defrost sensor closes. It is located inthe lower left corner of the defrost control boardon the low voltage side of the control box. Threeinterval settings are available: 30 minutes, 60minutes, and 90 minutes. Time setting selectionis dependent on the climate where the unit isbeing installed.

Example 1. Dry climate of SouthernArizona. A 90 minute setting isrecommended.

Example 2. Moist climate of Seattle,Washington. A 30 minute setting isrecommended.

To set the cycle timer, place the timing pin on thedefrost control board to the desired time intervalpost.

Note: All units are shipped from the factory withthe default time setting of 30 minutes.

Q4SA-048D & Q4SA-060D Blower Wiring

Figure 9. Motor Lead Connection

Q4SA-036D Blower Wiring

START UP AND SYSTEM CHECKPre-Start Check List

• Verify that the unit is level to allow propercondensate drainage.

• Verify that there is free airflow to and fromthe outdoor coil and that all clearancerequirements are met.

• Verify that the duct work is sealed toprevent air leakage.

• Verify that the line voltage power leads aresecurely connected and the unit is properlygrounded.

• Verify that the low voltage wires are securelyconnected to the correct leads on the lowvoltage terminal strip.

• Verify that all exterior panels are replacedand securely fastened.

• Verify that the outdoor fan turns freely.• Verify that the power supply branch circuit

overcurrent protection is sized properly.• Verify that the thermostat is wired correctly.

The thermostat function switch should beset to “Off’ and the thermostat fan switchshould be set to “Auto.”

Start-Up ProcedureClose all electrical disconnects to energize thesystem.

Blower SpeedBlower Leads Low Medium High

Red BR T3 ISOLATE ISOLATEBlack TB T1 TB T1 BR T3Gray TB T1 TB T1 ISOLATEBlue ISOLATE BR T3 ISOLATEViolet ISOLATE ISOLATE ISOLATE

Blower SpeedBlower Leads Low Medium High

Red BR T3 ISOLATE ISOLATEBlack TB T2 TB T1 BR T3Gray TB T2 TB T1 ISOLATEBlue TB T1 BR T3 ISOLATEViolet TB T1 ISOLATE ISOLATE

BR T( ) - Blower Relay Terminal (number)TB T( ) - Terminal Block Terminal (number)

11

! WARNING:If the unit is equipped with a crankcaseheater, allow 24 hours prior to continuingthe start up procedures to allow forheating of the refrigerant compressorcrankcase. Failure to comply may resultin damage and could cause prematurefailure of the system. This warning shouldbe followed at initial start up and any timethe power has been removed for 12 hoursor longer.

Air Circulation — Leave the thermostat systemswitch set to “Off” and set the thermostat fanswitch to “On.” The blower motor should runcontinuously. Check for air delivery at theregister(s). Ensure that there are no obstructionsat the registers or in the duct work. Set thermostatfan switch to “Auto.”

System Cooling1. Set the thermostat system switch to “Cool”

and the thermostat fan switch to “Auto”.Gradually lower the thermostat temperatureswitch below room temperature and observethat the blower, compressor, and fanenergize. Check that air cooler than roomtemperature is being discharged at theregister. Listen for any unusual noises.

2. After allowing the unit to run for severalminutes, set the temperature selector aboveroom temperature. The fan and compressorcycles off with the thermostat. The blowershould also stop unless fan switch is set to“ON” position.

System Heating — Set the system thermostatswitch to HEAT and set the thermostat fanswitch to AUTO. Verify that the compressor,outdoor fan, and blower are energized. Checkfor warm air at the supply registers.

UNIT MAINTENANCE

! WARNING:To avoid risk of electrical shock, personalinjury, or death, disconnect all electricalpower to the unit before performing anymaintenance or service. The unit may havemore than one electrical supply.

Refrigerant Charging — The Q4 packagedheat pumps are fully charged at the factory . Thesystem refrigerant charge can be checked andadjusted through the service ports provided inthe front panel. Use only gauge lines which havea “Schrader” depression device present toactuate the valve. Refrigerant charging must bedone by qualified personnel familiar with safeand environmentally responsible refrigeranthandling procedures.

! WARNING:The Q4 Single Packaged Heat Pumpsare shipped fully charged and ready forinstallation. When a system is installedaccording to these instructions, norefrigerant charging is required. Ifrepairs make it necessary forevacuation and charging, it should onlybe done by qualified, trained personnelthoroughly familiar with this equipment.Some local codes require licensedinstallation/service personnel to servicethis type of equipment. Under nocircumstances should the ownerattempt to install and/or service thisequipment. Failure to comply with thiswarning could result in propertydamage, personal injury, or death.

! CAUTION:Use care when removing parts from thisunit. Personal injury can result fromsharp metal edges present in allequipment of sheet metal construction.

Routine Maintenance — Proper maintenanceis important to achieve optimum performancefrom the heat pump. The ability to properlyperform maintenance on this equipment requirescertain mechanical skills and tools. If you do notpossess these skills, contact your dealer formaintenance. Consult your local dealer aboutthe availability of maintenance contracts. At aminimum, routine maintenance should includethe following:

1. Inspect and clean or replace air filters at thebeginning of each heating and coolingseason, or more frequently if required.

12

Typical Wiring (Field Supplied)for 1-Stage Cool, 1-Stage Heat

Typical Wiring (Field Supplied)for 2-Stage Cool, 1-Stage Heat

Figure 10. Typical Thermostat Connection

E

O

G

R

Y1

123456789

Blue

ECONOMIZERPLUG

INDOORTHERMOSTAT

SUB-BASE

Green

FROMBLOWER

RELAY(Optional,Check

ThermostatInstructions)

Y2

W2

W3

X

E

R

W2

O

Y

C

DEFROSTBOARD

E

O

G

R

Y1123456789

Blue

ECONOMIZERPLUG

INDOORTHERMOSTAT

SUB-BASE

Green

FROMBLOWER

RELAY(Optional,Check

ThermostatInstructions)

Y2

W2

W3

X

E

R

W2

O

Y

C

DEFROSTBOARD

External Static Pressure Drop - inches water columnModel Speed 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

Q4SA-036 High 1600 1510 1410 1310 1200 1070 930 760Medium 1410 1330 1250 1150 1050 940 820 670

Low 1130 1070 1000 930 850 760 650 530Q4SA-048 High 2200 2140 2070 2000 1930 1850 1770 1690

Medium 1940 1890 1830 1760 1700 1630 1560 1490Low 1560 1510 1460 1410 1360 1310 1250 1200

Q4SA-060 High 2200 2140 2070 2000 1930 1850 1770 1690Medium 1940 1890 1830 1760 1700 1630 1560 1490

Low 1560 1510 1460 1410 1360 1310 1250 1200

- Speed set at factory

Table 1. Q4 Blower Curves

INTERNAL FILTERUNIT SIZE SIZE

R4GA 024-042, R4BC 024 (2) 14” x 25” x 1”P4SA 036, P4SA 048 orP4SC 036, Q4SA 036 (2) 14” x 25” x 2”

R4GA 048-060, R4GC 030-042 (2) 16” x 25” x 1”P4SA 060, P4SC 048-060, orQ4SA 048-060, Q4SC-048-060 (2) 16” x 25” x 2”

R4GC 048-060 (2) 18” x 25” x 1”R4GM 024-072 orQ4SC 048-060 (2) 18” x 25” x 2”

Table 1a. Internal Filter SizeRequirements.

2. Inspect the condensate drain and outdoorcoil at the beginning of each cooling season.Remove any debris. Clean the outdoor coiland louvers as necessary using a milddetergent and water. Rinse thoroughly withwater.

3. Inspect the electrical connections fortightness at the beginning of each heatingand cooling season. Service as necessary.

! CAUTION:The unit should never be operated withouta filter in the return air system. Replacedisposable filters with the same type andsize.

13

Heat Pump in Heating

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Table 2. Q4SA Heating Charging Charts

Q4S

A-0

36

OU

TD

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EM

PE

RA

TU

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(°

F)

010

2030

4050

60

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1712

313

822

135

138

2714

613

832

158

137

4116

414

954

190

171

6721

519

4

1813

013

623

141

136

2815

113

633

161

135

4217

114

655

197

167

6822

218

7

1913

713

424

147

134

2915

613

434

165

133

4317

814

356

204

162

6922

918

1

2014

413

225

152

132

3016

113

235

169

131

4418

514

057

211

158

7023

617

5

2115

113

026

158

130

3116

513

036

172

129

4519

213

758

218

153

7124

316

9

2215

812

827

164

128

3217

012

837

176

127

4619

913

459

225

149

7225

016

3

2316

512

628

170

126

3317

512

638

180

125

4720

613

260

232

144

7325

715

7

Q4S

A-0

48

OU

TD

OO

R T

EM

PE

RA

TU

RE

(°

F)

010

2030

4050

60

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

1412

913

420

143

135

2515

813

531

172

136

3917

814

151

200

152

6222

216

2

1513

613

221

149

133

2616

213

332

175

134

4018

513

852

207

147

6322

915

6

1614

313

022

155

131

2716

713

133

179

132

4119

213

653

214

143

6423

615

0

1715

012

823

161

129

2817

212

934

183

130

4219

913

354

221

138

6524

314

4

1815

712

624

167

127

2917

712

735

186

128

4320

613

055

228

134

6625

013

7

1916

412

425

173

125

3018

112

536

190

126

4421

312

756

235

129

6725

713

1

2017

112

226

179

123

3118

612

337

194

124

4522

012

457

242

125

6826

412

5

14

Table 2a. Q4SA Heating Charging Charts

Heat Pump in Heating

*N

ote:

All

pres

sure

s ar

e lis

ted

inps

ig. a

nd a

ll te

mpe

ratu

res

in d

eg. F

.—

Sha

ded

Box

es in

dica

te fl

oode

d co

nditi

ons

—R

ated

Des

ign

Val

ues.

Suc

tion

Pre

ssur

e w

ill b

e lo

wer

than

des

ign

valu

e if

indo

or a

irflo

w, e

nter

ing

dry

bulb

, or

ente

ring

wet

bul

b te

mpe

ratu

res

are

low

er th

an d

esig

n.

—D

isch

arge

tem

pera

ture

s gr

eate

r th

an c

hart

ed v

alue

s in

dica

tes

a re

frig

eran

tun

derc

harg

e.

Q4S

A-0

60

OU

TD

OO

R T

EM

PE

RA

TU

RE

(°

F)

010

2030

4050

60

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

Su

c.

Pre

ss.

Dis

ch.

Pre

ss.

Dis

ch.

Tem

p.

1212

212

619

139

127

2615

612

733

172

128

4117

913

551

199

148

6122

016

1

1312

912

420

145

125

2716

012

534

176

126

4218

613

252

206

143

6222

715

5

1413

612

221

151

123

2816

512

335

180

124

4319

312

953

213

139

6323

414

9

1514

312

022

156

121

2917

012

136

183

122

4420

012

654

220

134

6424

114

3

1615

011

823

162

119

3017

511

937

187

120

4520

712

355

227

130

6524

813

6

1715

711

624

168

117

3117

911

738

191

118

4621

412

056

234

125

6625

513

0

1816

411

425

174

115

3218

411

539

194

116

4722

111

857

241

121

6726

212

4

15

Q4S

A-0

36O

UT

DO

OR

TE

MP

ER

AT

UR

E (

°F

)70

7580

8590

9510

010

5S

uct

. P

res.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

7218

915

3

7419

016

720

415

8

7619

018

420

517

021

915

823

015

524

215

6

7819

120

120

618

422

117

223

416

024

516

425

616

0

8019

221

820

819

822

218

523

617

224

917

026

016

627

116

3

8220

921

322

419

823

818

725

217

826

517

127

516

928

616

7

8422

621

024

019

825

418

926

718

128

017

529

117

3

8625

620

026

919

128

218

429

517

8

8828

519

429

818

790

287

203

300

196

9230

320

5

Q4S

A-0

48O

UT

DO

OR

TE

MP

ER

AT

UR

E (

°F

)70

7580

8590

9510

010

5S

uct

. P

res.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

6818

812

2

7019

112

320

413

5

7219

214

020

713

922

213

723

414

624

815

2

7419

215

720

815

422

415

123

914

725

216

026

616

0

7619

317

421

016

822

616

424

116

025

716

427

016

628

416

7

7821

118

222

717

724

317

425

917

227

417

128

817

330

217

4

8022

919

024

518

526

118

327

618

129

218

030

718

0

8226

319

327

919

129

418

931

018

8

8429

719

931

219

786

299

208

315

206

8831

721

5

Table 3. Q4SA Cooling Charging Charts

Heat Pump in Cooling

*N

ote:

All

pres

sure

s ar

e lis

ted

inps

ig. a

nd a

ll te

mpe

ratu

res

in d

eg. F

.—

Sha

ded

Box

es in

dica

te fl

oode

d co

nditi

ons

—R

ated

Des

ign

Val

ues.

Suc

tion

Pre

ssur

e w

ill b

e lo

wer

than

des

ign

valu

e if

indo

or a

irflo

w, e

nter

ing

dry

bulb

, or

ente

ring

wet

bul

b te

mpe

ratu

res

are

low

er th

an d

esig

n.

—D

isch

arge

tem

pera

ture

s gr

eate

r th

an c

hart

ed v

alue

s in

dica

tes

a re

frig

eran

tun

derc

harg

e.

16

Q4S

A-0

60O

UT

DO

OR

TE

MP

ER

AT

UR

E (

°F

)70

7580

8590

9510

010

5S

uct

. P

res.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

Dis

ch.

Pre

s.D

isch

. T

emp

.D

isch

. P

res.

Dis

ch.

Tem

p.

6819

215

7

7019

316

520

816

4

7219

418

221

017

222

616

423

916

525

216

7

7419

519

921

118

722

717

824

316

825

617

526

917

1

7619

521

621

320

122

919

124

518

126

018

027

317

828

717

5

7821

421

523

120

424

719

526

218

827

818

329

118

130

417

9

8023

221

624

920

726

519

928

019

329

518

830

918

5

8226

721

028

220

329

819

731

319

2

8430

020

631

520

186

303

216

318

210

8832

021

9

Table 3a. Q4SA Cooling Charging Charts

Heat Pump in Cooling

*N

ote:

All

pres

sure

s ar

e lis

ted

inps

ig. a

nd a

ll te

mpe

ratu

res

in d

eg. F

.—

Sha

ded

Box

es in

dica

te fl

oode

d co

nditi

ons

—R

ated

Des

ign

Val

ues.

Suc

tion

Pre

ssur

e w

ill b

e lo

wer

than

des

ign

valu

e if

indo

or a

irflo

w, e

nter

ing

dry

bulb

, or

ente

ring

wet

bul

b te

mpe

ratu

res

are

low

er th

an d

esig

n.

—D

isch

arge

tem

pera

ture

s gr

eate

r th

an c

hart

ed v

alue

s in

dica

tes

a re

frig

eran

tun

derc

harg

e.

17

Q4 ACCESSORIESDescription Part Number

Roof Curb (8") 547830Roof Curb (14") 547831Manual Fresh Air Damper 547832Economizer, downflow 547833Supply/return transition, 16" 547834Supply/return transition, 18" 547835Concentric diffuser, flush, 16" 547836Concentric diffuser, flush, 18" 547837Concentric diffuser, step down 16" 547838Concentric diffuser, step down 18" 547839Motorized Fresh Air Damper 547840Economizer, horizontal (special order) 547841Power Exhaust, downflow economizer (special order) 547842Power Exhaust horizontal economizer (special order) 547843Hail guard 30x76 (special order, see Note 1) 547845Hail guard 34x76 (special order, see Note 2) 547846Filter Kit, Downflow (See Note 1) 547887Filter Kit, Downflow (See Note 2) 547888Filter Rack, Downflow 547885T-stat, HP, 2 stage htg/1 stage cool, auto, ("M" brand) 912931T-stat, HP, 2 stage htg/1 stage cool, auto, ("I" brand) 912929T-stat, HP, 2 stage htg/1 stage cool, manual, ("M" brand) 912932T-stat, HP, 2 stage htg/1 stage cool, manual, ("I" brand) 912930T-stat, AC, 2 stage htg/1 stage cool, ("T, P, F" brand) 917004T-stat, HP, 2 stage htg/1 stage cool, ("T, P, F" brand) 91700512" Flex duct adapter kit 91381114" Flex duct adapter kit 91381212" Flex duct adapter kit & P-Trap 91381314" Flex duct adapter kit & P-Trap 913814Universal Hard Start Kit 912933Low Pressure Switch Kit 913551High Pressure Switch Kit 913550Low Ambient Kit 913770P-Trap Kit 913810Outdoor Thermostat Kit 913852Circuit Breaker Kit-Single Phase 913554Circuit Breaker Kit-Three Phase 9137404-pole single circuit adapter kit (Single Phase Units Only) 9133506-pole single circuit adapter kit (Single Phase Units Only) 913556

Note 1: Q4SA-036( )Note 2: Q4SA-048( ), Q4SA-060( ), Q4SC-036( )Note 3: Q4SC-048K, Q4SC-060K

Table 4. Field Installed Accessory Kits

18

Co

nve

rtib

le P

acka

ged

Hea

t Pu

mp

46

0 Vo

ltT

hre

e P

has

e 6

0Hz

NN

OT

ES

:1.

Dis

con

nec

t al

l po

wer

bef

ore

ser

vici

ng

.2.

Fo

r su

pp

ly c

on

nec

tio

ns

use

co

pp

er c

on

du

cto

rs o

nly

.3.

If a

ny

of

the

ori

gin

al w

ire

as s

up

plie

d w

ith

th

e fu

rnac

e m

ust

be

rep

lace

d, i

t m

ust

be

rep

lace

d w

ith

wir

ing

mat

eria

l hav

ing

a t

emp

erat

ure

rat

ing

of

at le

ast

105°

C.

4.F

or

sup

ply

wir

e am

pac

itie

s an

d o

verc

urr

ent

pro

tect

ion

, see

un

it r

atin

g p

late

.

1.C

ou

per

le c

ou

ran

t av

ant

de

fair

e le

tret

ien

.2.

Em

plo

yez

un

iqu

emen

t d

es c

on

du

cteu

rsen

cu

ivre

.

Figure 8. Single Phase Wiring Diagram

Rev

ersi

ng

Val

veS

ole

no

id

DE

FR

OS

T B

OA

RD

OP

ER

AT

ION

:

CL

OS

ES

DU

RIN

G D

EF

RO

ST.

RA

TIN

G: 1

A M

AX

IMU

M

CL

OS

ED

WH

EN

"Y

" IS

EN

ER

GIZ

ED

. OP

EN

WH

EN

"Y

" IS

DE

EN

ER

GIZ

ED

.P

RO

VID

ES

"O

FF

" D

EL

AY

TIM

E O

F 5

MIN

WH

EN

"Y

" IS

DE

EN

ER

GIZ

ED

.

WIT

H D

FT

CL

OS

ED

AN

D "

Y"

EN

ER

GIZ

ED

, CO

MP

RE

SS

OR

RU

N T

IME

IS A

CC

UM

UL

AT

ED

. O

PE

NIN

G O

F D

FT

DU

RIN

G D

EF

RO

ST

OR

INT

ER

VAL

PE

RIO

D R

ES

ET

S T

HE

INT

ER

VAL

TO

0.

21 3

E

con

om

izer

A

cces

sory

Plu

g

Plu

g E

YE

LLO

W

3456 2 1

456 2 13

BR

CC

CC

HD

FT

OD

TR

VS PS

OD

FR

- B

LO

WE

R R

EL

AY

- C

OM

PR

ES

SO

R C

ON

TAC

TOR

- C

RA

NK

CA

SE

HE

AT

ER

( IF

EQ

UIP

PE

D )

- D

EF

RO

ST

TH

ER

MO

STA

T -

OU

TD

OO

R T

HE

RM

OS

TAT

(OP

TIO

NA

L)

- R

EV

ER

SIN

G V

ALV

E S

OL

EN

OID

- P

RE

SS

UR

E S

WIT

CH

(S

EL

EC

T M

OD

EL

S)

- O

UT

DO

OR

FA

N R

EL

AY

Fie

ld W

irin

g

Fact

ory

Wir

ing

Lo

w V

olt

age

Hig

h V

olt

age

B6

460

V

24 V

XF

MR

E

DF

T R

R

W

2 O

O

Y

C

T

2

T1

DF

1

DF

2

E

R

W2

O

Y

C

Tran

sfo

rmer

YE

LLO

W

RED

RED

Def

rost

Th

erm

ost

at

BLA

CK

BLA

CK

GREEN

Def

rost

Co

ntr

ol B

oar

dL

ow

Vo

ltag

e C

on

nec

tio

ns

BR

BR

E1

LE

TT

ER

IND

ICA

TE

S W

HIC

H P

LU

G1

- 6

IND

ICA

TE

S P

IN N

UM

BE

R.

- IN

DIC

AT

ES

PL

UG

CO

NN

EC

TIO

NB

1

No

te: S

ee In

stal

lati

on

Inst

ruct

ion

s fo

r w

irin

g,

app

licat

ion

, an

d in

form

atio

n c

on

cern

ing

ac

cess

ory

kit

s an

d o

ther

op

tio

ns.

Def

rost

Co

ntr

ol B

oar

d

BLACK

BLUE

GR

AY

To In

do

or

Th

erm

ost

atG

G To In

do

or

Th

erm

ost

at

2

CO

NT

RO

LL

OG

IC

1

DF

T

CC

RV

S

E3

E5

E6E4

BLACK

DF

TR

W2

EO

YT

1T

2C

RED

77

88

99

To

Dis

char

ge

Air

Sen

sor

RE

DR

ED

WH

ITE

E2

On

un

its

wit

h

no

pre

ssu

re

swit

ch a

n

ora

ng

e w

ire

will

co

nn

ect

Pin

6 a

nd

T1

Hig

h P

ress

ure

S

wit

ch(S

elec

t M

od

els

On

ly)

On

un

its

wit

h

no

pre

ssu

re

swit

ch a

n

ora

ng

e w

ire

will

co

nn

ect

Pin

6 a

nd

T1

PS

No

te: S

ee In

stal

lati

on

In

stru

ctio

ns

for

spec

ific

blo

wer

sp

eed

set

tin

g; s

etti

ng

sh

ow

n is

n

ot

typ

ical

for

all u

nit

s.

Cap

acit

or

Co

nta

cto

r

CC

H(I

f E

qu

ipp

ed)

To 4

60 V

AC

Po

wer

Su

pp

ly

YELLOW

RED

YELLOW

Ou

tdo

or

Fan

Mo

tor

Co

mp

ress

or

Gro

un

d O

n

Lo

cati

on

P

rovi

ded

In

sid

e C

om

pre

sso

r Te

rmin

al

Box

GN

D

T2

L1

T1

L2

L3

T3 T

3T

1

T2

BLU

E

BLACK

ORANGE

YE

LLO

W

YE

LLO

W

Co

mp

ress

or

L1

L2

CC

1

L3

460

- 3

- 60

CC

3

CC

2 T3

T1

T2

OF

M

C

RS

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¢708143¬¤708143A

INSTALLER:

PLEASE LEAVE THESEINSTALLATION INSTRUCTIONS

WITH THE HOMEOWNER.

O’Fallon, MO

708143A (Replaces 7081430)

Specifications and illustrationssubject to change without notice and

without incurring obligations. (9/06)