Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 111 Catalog No. 534-80109 Printed in U.S.A. Form 48HJ-3W Pg 1 1-03 Replaces: 48/50HJ-7W,

48/50HJ-8WBook 1 4Tab 1a 6a

Wiring Diagrams

*Low NOx/California Compliant Units.†Applies to Low NOx Units.

*Durablade Economizer was a factory-installed option (FIOP) until 2/15/02, it is currently available only as a field-installed accessory.†EconoMi$er wiring in Fig. 18 is generic (for units produced from 5/99-2/02) with the exception of the way the power exhaust switch is wired.

Refer to Fig. 21 and 22 for more detailed power exhaust switch information.

UNIT WIRING DIAGRAMSUnit Volt-Ph-Hz Type From Label Fig. No.

48HJD/E/F004,005208/230-3-60 Schematic/Component Arrangement 50HJ501028 1

460-3-60 Schematic/Component Arrangement 50HJ501029 2

48HJG/H/K/L/M/N004,005*208/230-3-60 Schematic/Component Arrangement 50HJ501028 1

460-3-60 Schematic/Component Arrangement 50HJ501029 248HJE/F/R/T004,005 and 48HJS005 575-3-60 Schematic/Component Arrangement 50HJ501030 3

48HJD/E/F/L/M/N/R/S/T004-006† 208/230-1-60 Schematic/Component Arrangement 50HJ501027 4

48HJG/H/K/L/M/N006*208/230-3-60 Schematic/Component Arrangement 50HJ501031 5

460-3-60 Schematic/Component Arrangement 50HJ501029 2

48HJD/E/F/R/S/T006,007208/230-3-60 Schematic/Component Arrangement 50HJ501031 5

460-3-60 Schematic/Component Arrangement 50HJ501032 6575-3-60 Schematic/Component Arrangement 50HJ501033 7

48HJD/E/F/R/S/T008-014208/230-3-60 Schematic/Component Arrangement 50HJ501296 8

460-3-60 Schematic/Component Arrangement 50HJ501297 9575-3-60 Schematic/Component Arrangement 50HJ501298 10

OPTION AND ACCESSORY WIRINGDescription 48HJ Unit Size Fig. No. Serial NumberApollo Controls Wiring Including Indoor Air Quality 004-014 11 From 2492Gxxxxx

Apollo Thermostat Wiring — Typical004-007 12

From 0395Gxxxxx008-014 13

Convenience Outlet Schematic 004-014 14 From 0798GxxxxxDurablade Economizer Wiring 004-014 15 From 3295Gxxxxx*

Differential Enthalpy Control (Durablade) 004-014 16 From 3295Gxxxxx*Solid-State Enthalpy Control (Durablade) 004-014 17 From 3295Gxxxxx*

EconoMi$er Wiring 004-014 18 2099Gxxxxx-0702Gxxxxx†EconoMi$er Dry Bulb Sensor Wiring 004-014 19 2099Gxxxxx-0702GxxxxxEconoMi$er Enthalpy Sensor Wiring 004-014 20 2099Gxxxxx-0702GxxxxxEconoMi$er Power Exhaust Wiring with the Switch in the Actuator 004-014 21 2099Gxxxxx-4501GxxxxxEconoMi$er Power Exhaust Wiring with the Switch Outside the Actuator 004-014 22 4501Gxxxxx-0702Gxxxxx

EconoMi$er2 Wiring 004-014 23 From 0802GxxxxxDifferential Enthalpy Wiring (EconoMi$er2) 004-014 24 From 0802GxxxxxFire and Smoke Control Wiring (EconoMi$er2) 004-014 25 From 0802GxxxxxIndoor Air Quality Sensor Wiring (EconoMi$er2) 004-014 26 From 0802GxxxxxPower Exhaust, 208/230, 575 V Units (EconoMi$er2) 004-014 27 From 0802GxxxxxPower Exhaust for 460 V Units (EconoMi$er2) 004-014 28 From 0802GxxxxxEconoMi$er2 with PremierLink™ or 4-20 mA Control 004-014 29 From 0802Gxxxxx

Factory-Installed Non-fused Disconnect 004-014 30 From 0395Gxxxxx

MoistureMi$er™ Dehumidification Package Humidistat Wiring (Typical) 004-007 31 From 1296Gxxxxx008-014 32 From 1296Gxxxxx

Motormaster® I Control Wiring Details 004-014 33

Motormaster II Control Wiring Schematic004-007 34008-014 35

Motormaster IV Control Wiring Schematic004-007 36008-014 37

Novar Controls Wiring (EMT3051) 004-014 38 From 2900GxxxxxNovar Controls Wiring (EMT2024) 004-014 39 From 2900GxxxxxPremierLink Controls Wiring 004-014 40 From 4601GxxxxxPremierLink Controls Wiring with Dual Terminal Block 004-014 41 From 4002GxxxxxPremierLink Controls with Dual Terminal Block and 62AQ 004-014 42 From 2102GxxxxxSmoke Detector Shutdown — Single-Phase 004-014 43 From 0802GxxxxxSmoke Detector Shutdown — Three-Phase 004-014 44 From 0802GxxxxxTime Guard II Device 004-014 45Two-Position Damper Wiring 004-014 4662AQ Energy Recycler

Factory-Installed 62AQ Energy$Recycler Wiring — COBRA™ Energy Recovery Units008-012 47

From 4902Gxxxxx014 48

Typical COBRA Energy Recycler Wiring with PremierLink Controls 004-014 49 004-007 Units: From 4502Gxxxxx008-014 Units: From 4902GxxxxxTypical COBRA Energy Recycler Wiring with Standard Controls 004-014 50

Field-Installed 62AQ Energy$Recycler Accessory Wiring (Typical) 004-014 51

48HJ004-014Single Package Rooftop

Gas Heating/Electric Cooling Units

2

OPERATING SEQUENCE

Unit Produced Before 2/18/02COOLING, UNITS WITHOUT ECONOMIZER — Whenthermostat calls for cooling, terminals G and Y1 are energized.The indoor (evaporator) fan contactor (IFC), OFC (outdoor-fancontactor), and compressor contactor no. 1 (C1) are energized.Indoor (evaporator) fan motor (IFM), compressor no. 1, andcondenser fans start. The outdoor (condenser) fan motors(OFMs) run continuously while unit is cooling. For units with2 stages of cooling, if the thermostat calls for a second stage ofcooling by energizing Y2, compressor contactor no. 2 (C2) isenergized and compressor no. 2 starts.

When the thermostat is satisfied, C1 and C2 are deenergizedand the compressors and OFMs shut off. After a 30-second de-lay, the IFM shuts off. If the thermostat fan selector switch is inthe ON position, the evaporator motor will run continuously.COOLING, UNITS WITH DURABLADE ECONO-MIZER — When the outdoor-air temperature is above theoutdoor-air thermostat (OAT) setting and the room thermostatcalls for cooling, the compressor contactor no. 1 is energized tostart compressor no. 1 and outdoor (condenser) fan motors(OFMs). The indoor (evaporator) fan motor (IFM) is energizedand the economizer damper moves to the minimum position.Upon a further call for cooling, compressor contactor no. 2 willbe energized, starting compressor no. 2. After the thermostat issatisfied and the IFM is deenergized, the damper moves to thefully closed position.

When the outdoor-air temperature is below the OAT settingand the thermostat calls for Y1 and G, the economizer dampermoves to the minimum position when the evaporator fan starts.The first stage of cooling is provided by the economizer. If thesupply-air temperature is above 57 F (14 C), a switch on thesupply-air thermostat is closed between the T2 terminal and the24 vac terminal. This causes the damper to continue to modu-late open until the supply-air temperature falls below 55 F(13 C) or the damper reaches the fully open position.

When the supply-air temperature is between 55 F and 52 F(13 C and 11 C), the supply-air thermostat has open switchesbetween the T2 and 24 vac terminals and between the T1 and24 vac terminals. This causes the economizer damper to remainin an intermediate open position.

If the supply-air temperature falls below 52 F (11 C), aswitch on the supply-air thermostat is closed between the T1terminal and the 24 vac terminal. This causes the damper tomodulate closed until the supply-air temperature rises above55 F (13 C) or the damper reaches the minimum position.

When the supply-air temperature is between 55 F and 57 F(13 C and 14 C), the supply-air thermostat has open switchesbetween the T2 and 24 vac terminals. This causes the econo-mizer damper to remain in an intermediate open position.

If the outdoor air alone cannot satisfy the cooling require-ments of the conditioned space, economizer cooling is integrat-ed with mechanical cooling, providing second-stage cooling.Compressor no. 1 and condenser fans will be energized, andthe position of the economizer damper will be determined bythe supply-air temperature. Compressor no. 2 is locked out.

When the second stage of cooling is satisfied, the compres-sor and OFMs will be deenergized. The damper position willbe determined by the supply-air temperature.

When the first stage of cooling is satisfied, the IFM shuts offafter a 30-second delay. The damper then moves to fully closedposition.COOLING, UNITS WITH ECONOMI$ER — When theoutdoor-air temperature (OAT) is above the ECON SP set pointand the room thermostat calls for Stage 1 cooling (R to G +Y1), the indoor (evaporator) fan motor (IFM) is energized andthe EconoMi$er damper modulates to minimum position. The

compressor contactor is energized to start the compressor andoutdoor (condenser) fan motor (OFM). After the thermostat issatisfied, the damper modulates to the fully closed positionwhen the IFM is deenergized.

When the OAT is below the ECON SP setting and the roomthermostat calls for Stage 1 cooling (R to G + Y1), theEconoMi$er modulates to the minimum position when theIFM is energized. The EconoMi$er provides Stage 1 of coolingby modulating the return and outdoor air dampers to maintain a55 F supply air set point. If the supply-air temperature (SAT) isgreater than 57 F, the EconoMi$er modulates open, allowing agreater amount of outdoor air to enter the unit. If the SAT dropsbelow 53 F, the outdoor air damper modulates closed to reducethe amount of outdoor air. When the SAT is between 53 and57 F, the EconoMi$er maintains its position.

If outdoor air alone cannot satisfy the cooling requirementsof the conditioned space, and the OAT is above the MECHCLG LOCKOUT set point, the EconoMi$er integrates freecooling with mechanical cooling. This is accomplished by thestrategies below.NOTE: Compressor has a 2-minute Minimum On, MinimumOff, and Interstage delay timer.

1. If Y1 is energized, and the room thermostat calls for Y2(2-stage thermostat), compressor no. 1 and OFM areenergized. The EconoMi$er damper is maintained at itscurrent position.

2. If Y1 is energized for more than 20 minutes, and Y2 isnot energized (whether or not a 2-stage thermostat isused), compressor no. 1 and OFM are energized. TheEconoMi$er damper is maintained at its current position.

3. If Y1 is energized, and compressor no. 1 is already ener-gized (see Step 2) and the room thermostat calls for Y2,the compressor contains to operate. If Y2 remainsenergized for more than 20 minutes, compressor no. 2 isenergized.

NOTE: Compressor no. 2 cannot be energized unless there is asignal for Y2 from the space thermostat.

4. If compressor no. 2 is energized, and the Y2 signal fromthe thermostat is satisfied, compressors 1 and 2 are deen-ergized. Reasserting Y2 will start compressor no. 1 and(after a 20-minute interstage delay) compressor no. 2.

5. If compressor no. 1 is energized and the thermostat is sat-isfied, compressor no. 1, the OFM, and IFM are deener-gized and the EconoMi$er modulates closed.

When the OAT is below the MECH CLG LOCKOUT setpoint, the compressors remain off.HEATING, UNITS WITHOUT ECONOMIZER — Whenthe thermostat calls for heating, terminal W1 is energized. Inorder to prevent thermostat short-cycling, the unit is lockedinto the Heating mode for at least 1 minute when W1 is ener-gized. The induced-draft motor (IDM) is then energized andthe burner ignition sequence begins. The IFM is energized45 seconds after a flame is ignited. When additional heat isneeded, W2 is energized and the high-fire solenoid on the maingas valve (MGV) is energized. When the thermostat is satisfiedand W1 and W2 are deenergized, the IFM stops after a45-second time-off delay.HEATING, UNITS WITH ECONOMIZER/TWO-POSITION DAMPER — When the thermostat calls for heat-ing, terminal W1 is energized. In order to prevent thermostatshort-cycling, the unit is locked into the Heating mode for atleast 1 minute when W1 is energized. The induced-draft motoris then energized and the burner ignition sequence begins. TheIFM is energized 45 seconds after a flame is ignited and thedamper moves to the minimum position. If the two-positiondamper is used, the outdoor-air damper opens to the minimumposition whenever the evaporator fan runs. When additionalheat is needed, W2 is energized and the high-fire solenoid on

3

the main gas valve (MGV) is energized. When the thermostatis satisfied and W1 and W2 are deenergized, the IFM stops af-ter a 45-second time-off delay. The economizer damper thenmoves to the fully-closed position. When using continuous fan,the damper will remain in the minimum position.

Units Produced After 2/17/02COOLING UNITS WITHOUT ECONOMI$ER2 — Whenthermostat calls for cooling, terminal G and Y1 are energized.The indoor-fan contactor (IFC), compressor contactor no. 1(C1) and outdoor-fan contactor (OFC) are energized.Evaporator-fan motor, compressor no. 1, and both condenserfans start. The outdoor-fan motor(s) run continuously whileunit is cooling.

When the thermostat is satisfied, C1 and C2 are deenergizedand the compressors and outdoor (condenser) fan motors(OFM) shut off. After a 30-second delay, the indoor (evapora-tor) fan motor (IFM) shuts off. If the thermostat fan selectorswitch is in the ON position, the evaporator-fan motor will runcontinuously.HEATING UNITS WITHOUT ECONOMI$ER2 — Whenthe thermostat calls for heating, terminal W1 is energized. Inorder to prevent thermostat short-cycling, the unit is lockedinto the Heating mode for at least 1 minute when W1 is ener-gized. The induced-draft motor (IDM) is then energized andthe burner ignition sequence begins. The indoor (evaporator)fan motor (IFM) is energized 45 seconds after a flame isignited. On units equipped for two stages of heat, whenadditional heat is needed, W2 is energized and the high-firesolenoid on the main gas valve (MGV) is energized. When thethermostat is satisfied and W1 and W2 are deenergized, theIFM stops after a 45-second time-off delay.COOLING UNITS WITH ECONOMI$ER2 — When freecooling is not available, the compressors will be controlledby the zone thermostat. When free cooling is available, theoutdoor-air damper is positioned through the use of aProportional-Integral (PI) control process to provide a 55 Fsupply-air temperature into the zone. If the mixed-air tempera-ture is below the lower end of the set point of 50 F, then theoutside-air dampers will modulate to minimum position. If themeasured temperature is within the 50 to 56 F range, then theoutside dampers will hold their current position. If the mixed-air temperature is above 56 F, then the outside-air dampers willmodulate open until the temperature is within range or theymodulate to the fully open position.

If outdoor air alone cannot satisfy the cooling requirementsof the conditioned space, and the OAT is above the outdoor airmechanical lockout temperature set point (fixed; opens at 35 F,closes at 50 F), the EconoMi$er2 integrates free cooling withmechanical cooling as follows:

Thermostat first stage call for cooling (Y1) usesEconoMi$er2 damper for free cooling.Thermostat second stage call for cooling uses EconoMi$er2damper for free cooling, plus compressor no. 1 for mechan-ical cooling.

NOTE: During EconoMi$er2 operation (damper aboveminimum position) compressor no. 2 will not operate (sizes008-014).

The high ambient temperature (dry bulb) lockout (fixed):opens at 76 F, closes at 52 F.

If the enthalpy of the outside air is too high, the outside airdampers will modulate to minimum position.

If mechanical cooling is used with free cooling, the outdoor-air damper will be locked into its current position when thecompressor starts. If the increase in cooling capacity causes thesupply-air temperature to drop below 45 F, then the outdoor-airdamper position will be decreased to the minimum position. Ifthe supply temperature continues to fall, the outdoor-air damp-er will close.

If optional power exhaust is installed, as the outdoor-airdamper opens and closes, the power exhaust fans will be ener-gized and deenergized.

If field-installed accessory CO2 sensors are connected to theEconoMi$er2 control, a PI-controlled demand ventilation strat-egy will begin to operate. As the CO2 level in the zone increas-es above the CO2 set point, the minimum position of the damp-er will be increased proportionally. As the CO2 level decreasesbecause of the increase in fresh air, the outdoor-air damper willbe proportionally closed.HEATING UNITS WITH ECONOMI$ER2 — When the roomtemperature calls for heating, terminal W1 is energized. To pre-vent thermostat short-cycling, the unit is locked into the Heatingmode for at least 1 minute when W1 is energized. The induced-draft motor is energized and the burner ignition sequence begins.The indoor (evaporator) fan motor (IFM) is energized 45 sec-onds after a flame is ignited and the damper moves to the mini-mum position. On units equipped for two stages of heat, whenadditional heat is needed, W2 is energized and the high-fire sole-noid on the main gas valve (MGV) is energized. When the ther-mostat is satisfied and W1 is deenergized, the IFM stops after a45-second time-off delay. The economizer damper then movesto the fully closed position. When using continuous fan, thedamper will remain in the minimum position.UNITS WITH MOISTUREMI$ER™ DEHUMIDIFICA-TION PACKAGE — When thermostat calls for cooling,terminals G and Y1 are energized. The indoor (evaporator) fanmotor (IFM), compressor (C), and outdoor (condenser) fanmotor (OFM) start. The OFM runs continuously while the unitis in cooling. As shipped from the factory, MoistureMi$erdehumidification circuit is always energized. If MoistureMi$ercircuit modulation is desired, a field-installed, wall-mountedLC Humidistat or humidistat are required.

If the MoistureMi$er humidistat is installed and calls for theMoistureMiser subcooler coil to operate, the humidistatinternal switch closes. This energizes and closes the liquid linesolenoid valve coil (LLSV) of the MoistureMi$er circuit,forcing the hot liquid refrigerant of the liquid line to enter thesubcooler coil. As the hot liquid passes through the subcoolercoil, it is exposed to the cold supply airflow coming off fromthe evaporator coil and the liquid is further cooled to a temper-ature approaching the evaporator coil leaving-air temperature.The state of the refrigerant leaving the subcooler coil is ahighly subcooled liquid refrigerant. The liquid then enters athermostatic expansion valve (TXV) where the liquid isdropped to a lower pressure. The TXV does not have apressure drop great enough to change the liquid to a 2-phasefluid. The TXV can throttle the pressure drop of the liquidrefrigerant and maintain proper conditions at the compressorsuction valve over a wide range of operating conditions. Theliquid then enters a second fixed restrictor expansion device fora second pressure drop to a 2-phase fluid. The liquid proceedsto the evaporator coil at a temperature lower than normal cool-ing operation. This lower temperature is what increases thelatent capacity of the rooftop. The 2-phase refrigerant passesthrough the evaporator and is changed into a vapor. The airpassing over the evaporator coil will become colder thanduring normal operation as a result of the colder refrigeranttemperatures. However, as it passes over the subcooler coil, theair will be warmed slightly.

As the refrigerant leaves the evaporator, the refrigerantpasses a low-pressure switch in the suction line. This low-pressure switch will de-activate the MoistureMi$er packagewhen the suction pressure reaches 60 psig. The low-pressureswitch is an added safety device to protect against evaporatorcoil freeze-up. The low-pressure switch will only de-activateand open the liquid line solenoid valve in the MoistureMi$ercircuit. The compressors will continue to run as long as there isa call for cooling, regardless of the position of the low-pressureswitch. The solenoid valve and the MoistureMi$er package

4

will be re-activated only when the call for cooling has beensatisfied, the low-pressure switch has closed, and a new call forcooling exists. The crankcase heaters on the scroll compressorprovide additional protection for the compressor due to theadditional refrigerant charge in the subcooler.

When the humidistat is satisfied, the humidistat internalswitch opens cutting power to and opening the LLSV. The

refrigerant is routed back through the evaporator and the sub-cooler coil is removed from the refrigerant loop.

When the thermostat is satisfied, C1 is deenergized and thecompressor and OFM shut off. After a 30-second delay, theIFM shuts off. If the thermostat fan selector switch is in the ONposition, the IFM will run continuously.

LEGEND

NOTES FOR FIG. 11. If any of the original wire furnished must be replaced, it must be replaced

with type 90° C wire or its equivalent.2. Three-phase motors are protected under primary single phasing

conditions.3. Thermostat: HH07AT170, 172 Subbase: HH93AZ176, 177, 178, and

179.

4. Set heat anticipator at .14 amp for 1st stage and .14 amp for 2nd stage.5. Use copper conductors only.6. TRAN is wired for 230-v unit. If unit is to be run with 208-v power supply

disconnect BLK wire from 230-v tap (ORN) and connect to 208-v tap(RED). Insulate end of 230-v tap.

NOTES FOR FIG. 2, 3, 6 ,71. If any of the original wire furnished must be replaced, it must be replaced

with type 90° C wire or its equivalent.2. Three-phase motors are protected under primary single phasing

conditions.

3. Thermostat: HH07AT170, 172 Subbase: HH93AZ176, 177, 178, and179.

4. Set heat anticipator at .14 amp for 1st stage and .14 amp for 2nd stage.5. Use copper conductors only.

NOTES FOR FIG. 5, 8-101. If any of the original wire furnished must be replaced, it must be replaced

with type 90° C wire or its equivalent.2. Three-phase motors are protected under primary single phasing

conditions.3. Thermostat: HH07AT170, 172, 174 and P272-2783 Subbase:

HH93AZ176, 178 and P272-1882, 1883.

4. Set heat anticipator for first stage at 0.14 amp, second stage at 0.2 amp.For 48HJ008 and 009 low heat, set both first and second stage at0.14 amp.

5. Use copper conductors only.6. TRAN is wired for 230-v unit. If unit is to run with 208 v power supply,

disconnect BLK wire from 230-v tap (ORN) and connect to 200-v tap(RED). Insulate end of 230-v tap.

NOTES FOR FIG. 41. If any of the original wire furnished must be replaced, it must be replaced

with type 90° C wire or its equivalent.2. Thermostat: HH07AT170, 172 Subbase: HH93AZ176, 177, 178, and

179.3. Set heat anticipator at .14 amp for 1st stage and .14 amp for 2nd stage.

4. Use copper conductors only.5. TRAN is wired for 230-v unit. If unit is to be run with 208-v power supply

disconnect BLK wire from 230-v tap (ORN) and connect to 208-v tap(RED). Insulate end of 230-v tap.

AHA — Adjustable Heat AnticipatorAWG — American Wire GageC — Contactor, CompressorCAP — CapacitorCB — Circuit BreakerCC — Cooling CompensatorCER — Compressor Energy Recycler RelayCH,CCH — Crankcase HeaterCLO — Compressor LockoutCO2 — Carbon DioxideCOC — Cool Changeover RelayCOH — Heat Changeover RelayCOM — CommonCOMMS — CommunicationsCOMP — Compressor MotorCR — Cooling Relay, Compressor RelayCTD — Compressor Time DelayD — DiodeDAT — Discharge Air ThermistorDB — Defrost BoardDDC — Direct Digital ControlsDFT — Defrost ThermostatDM — Damper MotorDX — Direct Expansion Coil SensorEC — Enthalpy ControlECON — EconomizerEFC — Exhaust Fan ContactorEPS — Emergency Power Supply

(Nine Volt Battery)EQUIP — EquipmentER — Economizer RelayFC — Supply Air ContactorFPT — Freeze Protection ThermostatFR — Fan RelayFSS — Filter Status SwitchFU — FuseGND — GroundHM — Humidity RelayHPS — High-Pressure SwitchHR — Heater Relay

HS — Hall Effect SensorHT — HeatHU — HumidistatHV — High-VoltageI — IgnitorIAQ — Indoor Air QualityIDM — Induced-Draft MotorIFC — Indoor-Fan ContactorIFM — Indoor-Fan MotorIFMOVL — Indoor-Fan Motor Overload SwitchIFR — Indoor-Fan RelayIGC — Integrated Gas Unit ControllerLED — Light-Emitting DiodeLLSV — Liquid Line Solenoid ValveLPS — Low-Pressure SwitchLS — Limit SwitchLTLO — Low Temp Cooling LockoutMGV — Main Gas ValveMTR — MotorNC — Normally ClosedNO — Normally OpenOAT — Outdoor-Air ThermostatOATC — Outdoor Air Thermostat (Cool)OATH — Outdoor Air Thermostat (Heat)OCR — Occupied RelayOFC — Outdoor-Fan ContactorOFM — Outdoor-Fan MotorOLR — Overload RelayP — PlugPL — Plug AssemblyPWR — PowerQT — Quadruple TerminalR — RelayRS — Rollout SwitchRV — Reversing ValveRVS — Reversing Valve SolenoidSAT — Supply-Air Thermostat,

Standard Air TemperatureSEN — Sensor

SW1 — Switch Fully OpenSW2 — Switch Fully ClosedSW3 — Switch Minimum Vent PositionSW4 — Switch Maximum Vent PositionS-LPS — Low-Pressure Switch (Subcooler Only)TB — Terminal BlockTC — Thermostat-CoolingTDR — Time-Delay RelayTEMP — Temperature Volume and TemperatureTH — Thermostat-HeatingTRAN — TransformerVTS — Carrier Temp SystemVVT — Variable Volume and Temperature

Field Splice

Marked Wire

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Splice Marked

Motormaster IV Controller (32LH900003 Pressure Switch)

Factory Wiring

Field Control Wiring

Field Power Wiring

Accessory or Optional Wiring

To indicate common potential only;not to represent wiring.

5

Fig. 1 — Schematic/Component Arrangement, 48HJD/E/F/G/H/K/L/M004,005;208/230-3-60

See Legend on page 4.

6

Fig. 2 — Schematic/Component Arrangement, 48HJD/E/F/G/H/K/L/M/N004-005, 48HJG/H/K/L/M/N006;460-3-60

See Legend on page 4.

7

Fig. 3 — Schematic/Component Arrangement, 48HJE/F/R/T004-005, 48HJS005;575-3-60

See Legend on page 4.

8

Fig. 4 — Schematic/Component Arrangement, 48HJD/E/F/L/M/N/R/S/T004-006;208/230-1-60

See Legend on page 4.

9

Fig. 5 — Schematic/Component Arrangement, 48HJG/H/L006, 48HJD/E/F/K/M/N/R/S/T006-007;208/230-3-60

See Legend on page 4.

10

Fig. 6 — Schematic/Component Arrangement, 48HJD/E/F/R/S/T006-007;460-3-60

See Legend on page 4.

11

Fig. 7 — Schematic/Component Arrangement, 48HJD/E/F/R/S/T006-007;575-3-60

See Legend on page 4.

12

Fig. 8 — Schematic/Component Arrangement, 48HJD/E/F/R/S/T008-014;208/230-3-60

208/230-3-60 SCHEMATIC

See legend on page 3.

See Legend on page 4.

13

460-3-60 SCHEMATIC

Fig. 9 — Schematic/Component Arrangement, 48HJD/E/F/R/S/T008-014;460-3-60

See Legend on page 4.

14

575-3-60 SCHEMATIC

Fig. 10 — Schematic/Component Arrangement, 48HJD/E/F/R/S/T008-014;575-3-60

See Legend on page 4.

15

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VA

AU

XIL

IAR

YR

ELA

Y**

TO

CA

RR

IER

HV

AC

UN

ITF

IELD

SU

PP

LIE

DW

IRIN

G

13 12 11 10 9 8 7 6 5 4 3 2 1S

ING

LE Z

ON

ER

ELA

Y P

AC

KW

ITH

AU

XIL

AR

YR

ELA

Y

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17

SIN

GLE

ZO

NE

RE

LAY

PA

CK

CIR

CU

IT B

OA

RD

OA

TS

AT

DX

FAN

STA

TU

S

IAQ

STA

TU

S†W

HT

RE

DB

LUY

EL

GR

N

WH

TR

ED

GR

NB

LK

GR

NB

LK

FIL

TE

RS

TAT

US

HU

MID

ITY

SE

NS

OR

TS

P01

TE

RM

INA

LN

UM

BE

R#1 #2 #1

0#1

1

#10

#11

AD

DIT

ION

AL

SE

NS

OR

S*BLK

RE

D

RE

MO

TE

RO

OM

TE

MP.

SE

NS

OR

NE

TW

OR

KB

LKR

ED

GR

N

IND

OO

R A

IR Q

UA

LIT

Y (

CO

) S

EN

SO

R(3

3ZC

SE

NC

O2)

TY

PIC

AL

WIR

ING

DIA

GR

AM

2

12

34

FAN

RV

CO

OL

HE

AT

FIE

LD-

INS

TALL

ED

JUM

PE

RS

††

*Filt

er s

tatu

s sw

itch

and

hum

idity

sen

sor

cann

ot f

unct

ion

sim

ulta

-ne

ousl

y. O

nly

one

sens

or c

an b

e w

ired.

†Suc

h as

a C

O2

sens

or.

**S

et a

uxili

ary

optio

n to

“2”

— I

AQ

Con

trol

per

VT

S o

r V

VT

Ins

talla

tion

Inst

ruct

ions

.††

Fie

ld-in

stal

led

Jum

pers

bet

wee

n 3,

4 an

d 5,

7.N

OT

E:

Whe

n si

ngle

zon

e re

lay

pack

is

used

on

a V

VT

Mon

itor

Onl

yS

yste

m, t

he m

onito

r th

erm

osta

t can

not c

ontr

ol a

dam

per.

Fig

. 11

— A

po

llo C

on

tro

ls W

irin

g —

Incl

ud

ing

Ind

oo

r-A

ir Q

ual

ity

See

Leg

end

on p

age

4.

16

Fig. 12 — Apollo Thermostat Wiring — 48HJ004-007 (Typical)

Fig. 13 — Apollo Thermostat Wiring — 48HJ008-014 (Typical)

See Legend on page 4.

See Legend on page 4.

17

Fig. 14 — Convenience Outlet Schematic

Fig. 15 — Durablade Economizer Schematic

See Legend on page 4.

See Legend on page 4.

18

620 ohmJUMPER

}24 VAC SUPPLY FROMECONOMIZER CONTROLSECTION (RED TO TR,BRN TO TR1)TO SENSOR MOUNTEDON BACK OF CONTROL

}

GRAY WIRE FROMECONOMIZER HARNESS

RED WIRE FROMECONOMIZER SWITCH 3(NORMALLY CLOSED)

TR TR1

SO +

+SR

2 3

1

LED

AB

CD

LED

AB C

D

TR TR1

SO

SR

23

1

+

+ S+

(HH57AC078SENSOR)

24 VAC SUPPLY FROMECONOMIZER CONTROLSECTION (RED TO TR,BRN TO TR1)

TO SENSOR MOUNTEDON BACK OF CONTROL

GRAY WIRE FROMECONOMIZER HARNESS

RED WIRE FROMECONOMIZER SWITCH 3(NORMALLY CLOSED)

See Legend on page 4.NOTE: Switches shown in high enthalpy state. Terminals 2and 3 close on enthalpy decrease.

Fig. 17 — Solid-State Enthalpy Control(Durablade Economizer)

*Wiring is generic for all EconoMi$ers with the exception of the actuator. Refer to Fig. 21 and 22 for specific actuator production dates.

Fig. 18 — EconoMi$er Wiring for Units Produced 5/16/1999 through 2/15/2001*

See Legend on page 4.NOTES:

1. Remove factory-installed jumper across SR and +before connecting wires from HH57AC078 sensor.

2. Switches shown in high outdoor-air enthalpy state.Terminals 2 and 3 close on low outdoor-air enthalpyrelative to indoor air enthalpy.

Fig. 16 — Differential Enthalpy Control(Durablade Economizer)

See Legend on page 4.

19

OUTDOORAIRSENSOR

TEMPTEMP

COMOUTPWR

BROWN

VIOLET

WHITERED

BROWNTEMPTEMPCOMOUTPWR

RETURNAIRSENSOR

VIOLETWHITE

RED

OAT

COM

OAH

+15 V

RAT

COM

RAH

+15 V

ECONOMI$ERCONTROLLER

PINK TEMP

TEMPVIOLET

SUPPLY AIRTEMPERATURE SENSOR

V+ 24

COM VAC

SENSORCO2

(+)COMDAT

COMREM POT

COMLED

COM

CO2

CO2

Fig. 19 — EconoMi$er Dry Bulb Sensor Wiring

Fig. 20 — Wiring Diagram for Field-Installed Enthalpy Sensors

See Legend on page 4.

See Legend on page 4.

20

4-PINCONNECTOR

PLUG

L1

L2

GREEN

112 2

3 34 4

GND

230 VAC1 PHASE

GREEN/YELLOW

3

2

1

5 8

6 9 B

A74

LT. BLUE

BLACKBROWN

C1

BLUE

GREEN/YELLOW

3

2

1

5 8

6 9 B

A74

LT. BLUE

BLACKBROWN

C1

BLUE

FAN 2

FAN 1

BLACK

BLACK

BLACK

R124 VAC

R224 VAC

BLACK

BLUE

1

2

3BROWN

ORANGE

3-PINCONNECTOR

PLUG

YELLOW

RED YEL

H1

BLU GRAY

H4

SECONDARY230VAC

X4 X1

HT

01

AH

85

0(4

60

VA

C)

RED

H1

GRAY

H2

SECONDARY230VAC

X4 X1

HT

01

AH

85

9(5

75

VA

C)

2313

11 21230VAC

OR

BLACK L1

BLUE L2

COMPRESSOR 1CONTACTOR

FIELD SUPPLIEDWIRING

GREEN GND

2 x 4 IN.HANDY BOX

X3X2

H2H3

X2 X3

TO FUSEDDISCONNECT

TOPSWITCH

BOTTOMSWITCH

RED

RED

ORANGE

YELLOW

BROWN1 COM

CONNECTS TO2-PIN CONNECTORIN ECONOMIZER

CONNECTS TO THE3-PIN CONNECTORPLUG ON POWER EXHAUST

3

1COM

NCNO

COM

NCNO

22

+24 VAC

TOP SWITCHCAM POSITION

INDICATOR

BOTTOMSWITCH

TOPSWITCHWIRE TIE

ANCHOR HOLE

Fig. 21 — EconoMi$er Power Exhaust with the Switch Inside the Actuator(Units Produced 5/16/1999 - 11/5/2001)

Fig. 22 — EconoMi$er Power Exhaust with Switch Outside of Actuator(Units Produced 11/5/2001 - 2/15/2002)

See Legend on page 4.

See Legend on page 4.

21

+ +

+

+

+

- -

-

2-10VOUT

RED

RUN

BLACK

WHITE

24 VAC HOT

TR

BLACKBROWN

BROWN

BLACK

BLACK

GRAY

BLUE

YELLOW

VIOLETVIOLET

VIOLET

PINKPINK

RED

WHITE

WHITE

BROWN

ORANGE

620 OHMRESISTOR

820 OHMRESISTORSO

NOTE 8

5

1

3

1K1S

1S1

2K

2

4

T

P P1

Q Q1

AQ

SD1SD

AC AC1

PG PG1

ECONOMIZERDRY BULBSENSOR

Compressor Lockout N.C.

YELLOW

GRAY

BLUE

TAN

INDOORFAN

EXHAUSTFAN

UNITCONTROL

FREECOOL

MAXIMUMPOSITION

ADJUSTMENT 2-10 VDCCO2 SENSOR

HARNESSAND PLUG

MINIMUMPOSITION

ADJUSTMENT

AQ1

T1

SR

TR124 VAC COM

ACTUATOR

4

3

5

2

8

6

7

1

10

11

9

12}NOTE 9

NOTE 6

NOTE 1

NOTE 5

NOTE 7

NOTE 2

NOTE 4

NOTE 3

ECONOMISER2 CONTROLLER

NOTES:1. The standard EconoMi$er2 is shipped with a fixed dry bulb sensor. (Open 67 F — Close 52 F.) An adjustable dry bulb or enthalpy sensor can

replace the fixed dry bulb. (See Note 6.)2. CO2 sensor is optional. Field-installed accessory. See rooftop price pages for ordering data and pricing. Power for CO2 sensor should be pro-

vided by field-supplied transformer.3. The HVAC unit is shipped with a jumper plug attached to the EconoMi$er2 harness. Remove the jumper plug and save for future use if econ-

omizer is removed. Connect the male side of plug (shown above) to the female side in HVAC unit.4. 1S is an electronic switch that closes when powered by a 24 vac input.5. Factory-installed 620-ohm, 1 watt, 5% resistor should be removed only when a HH57AC078 enthalpy sensor or CROASENR001A00 adjust-

able dry bulb is added to SR and + for differential sensing.6. When replacing the fixed dry bulb sensor with an enthalpy or adjustable dry bulb, remove the 820-ohm resistor.7. Compressor lockout (Open 35 F — Close 50 F).8. See EconoMi$er2 Installation Instructions for details on locating and wiring supply air (mixed air) sensor.9. Switch on actuator must be in run position for economizer to operate.

10. A 2-stage thermostat is recommended.11. Before troubleshooting wiring, ensure that all the correct sensors have been installed (refer to EconoMi$er2 Installation Instructions).

Fig. 23 — EconoMi$er2 Wiring (For Units Produced 2/18/2002 - Present)

HH57AC078 DIFFERENTIALENTHALPY ORCROASENPOO1A00DIFFERENTIALADJUSTABLE DRY BULB

HH57AC078 ENTHALPY ORCROASENPOO1A00ADJUSTABLEDRY BULB

(NOTE 1)

(NOTE 2)

ECONOMISER2CONTROLLER

+

+

+

+

S

S

SO

TAN

TAN

VIOLET

VIOLET

SR

Fig. 24 — Differential Enthalpy Wiring for EconoMi$er2

See Legend on page 4.

See Legend on page 4.

NOTES:1. Violet wire from SO terminal has a factory-installed 820-ohm in-line

resistor. This resistor must be removed when replacing the standardfixed dry bulb with an optional enthalpy or adjustable dry bulb.

2. The standard economizer has a 620-ohm resistor between terminals SRand +. This resistor must be removed when adding differential enthalpyor differential adjustable dry bulb.

22

+ +

+

+

- -

2-10VOUT

RED

BLACK

WHITE

24 VAC HOT

TR

BLACKBROWN

BROWN

BLACK

BLACK

GRAY

BLUE

YELLOW

VIOLETVIOLET

VIOLET

PINKPINK

RED

WHITE

WHITE

BROWN

ORANGE

620 OHMRESISTOR

820 OHMRESISTORSO

5

1

3

1K1S

1S1

2K

2

4

T

P P1

Q Q1

AQ

SD1

SHUTDOWN

FIRE AND SMOKE CONTROL

AIR CHANGE

PURGE

SD

AC AC1

PG PG1

ECONOMISER2DRY BULBSENSOR

Compressor Lockout N.C.

YELLOW

GRAY

BLUE

TAN

INDOORFAN

EXHAUSTFAN

UNITCONTROL

FREECOOL

MAXIMUMPOSITION

ADJUSTMENT

HARNESSAND PLUG

MINIMUMPOSITION

ADJUSTMENT

AQ1

T1

SR

TR124 VAC COM

ECONOMISER2 CONTROLLERACTUATOR

4

3

5

2

8

6

7

1

10

11

9

12}

ECONOMISER2

Fig. 25 — Fire and Smoke Control Wiring for EconoMi$er2

Fig. 26 — Indoor Air Quality Sensor Wiring for EconoMi$er2

See Legend on page 4.

See Legend on page 4.

23

GREEN - YELLOW

GR

EE

N -

YE

LLO

W

GREEN

TAN TAN

TAN

WH

ITE

RE

DB

LAC

K

GRAY GRAY

GR

AY

BLA

CK

BLA

CK

BLACKBLACK EXH.FAN #1

EXH.FAN #2

GRD.

GRD.

BLU

E

BLU

E

BROWN BROWN

RELAY

TO HVAC UNITCONTROL BOX(SEE NOTE 4)

TO ECONOMISER2ACTUATOR

(SEE NOTE 2)

24 VACHOT

24 VACCOM

EXH FAN

+

3

1

2

3

A B

1 3

7 9

4 6

33

11

22

44

4

BLACK

REDEND

SWITCHPLUG

ECONOMISER2CONTROLLER(SEE NOTE 2)POWER LINE

PLUG

C1 C2

TRANSFORMERNO. HT01AH859

1

2

4

(SEENOTE 3)

575V

TO 575V POWER

PRIMARY

SECONDARY

220V

BLA

CK

RE

D

1

2

4

3

OR

FIELDSUPPLIED

FUSEDDISCONNECT

FIELD SUPPLIED2 x 4 JUNCTION BOX

GROUND

FOR 575-V POWER SUPPLY

FOR 208/230-V SEPARATEPOWER SUPPLY

NOTES:1. 575 V transformer No. HT01AH859 is ordered separately from power exhaust.2. EconoMi$er2 actuator and controller are shipped with the EconoMi$er2 — not with power exhaust.3. Connections from End Switch plug to the EconoMi$er2 controller are made by installer.4. If a single power source is to be used, size wire to include power exhaust MCA and MOCP.

Check MCA and MOCP when power exhaust is powered through the unit. Determine the new MCA including the power exhaust using the fol-lowing formula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 35, with CRPWREXH030A00 power exhaust.MCA New = 28.9 amps + 1.6 amps = 30.5 ampsIf the new MCA does not go over the MOCP published, then MOCP would not change. The MOCP in this example is 35 amps, the MCA Newis below 35, therefore the MOCP is OK. If “MCA New” is larger than the published MOCP, raise the MOCP to the next larger size. For separatepower, the MOCP for the power exhaust will be 15 amps per NEC.

Fig. 27 — EconoMi$er2 Power Exhaust Wiring — 208/230 V and 575 V Units

See Legend on page 4.

24

WHITE

GREEN-YELLOW

GRD

WH

ITE

BLA

CK

BLA

CK

WH

ITE

TAN

GRAY

+

GR

AY

GRAY

TAN

BLA

CK

RE

D

BLUEBLUE

RED

GREEN

AA BB

89

11 22 33

77

54 66

EXH.FAN #1

EXH.FAN #2

RELAY #1

3

1

2

3

1

2

4

33

11

22

44

4

BLACKBLACK

BR

OW

N

BR

OW

N

POWERLINEPLUG

RELAY #2

45

8

EXHFAN

ENDSWITCH

PLUG

24VHOT

24VCOM

OR

1

2

4

3

FIELD SUPPLIED2 x 4 JUNCTION BOX

GROUND

FIELDSUPPLIED

FUSEDDISCONNECT

SEPARATEPOWERSOURCE

GR

EE

N

RE

D

WH

ITE

BLA

CK

GRAYGRAY

9

GRAY

GRAY

RUN TO HVAC UNITCONTROL BOX.

(NOTE 3)

(NOTE 2)

ECONOMISER2CONTROLLER(NOTE 1)

TO ECONOMISER2ACTUATOR(NOTE 1)

NOTES:1. 575 V transformer No. HT01AH859 is ordered separately from power exhaust.2. EconoMi$er2 actuator and controller are shipped with the EconoMi$er2 — not with power exhaust.3. Connections from End Switch plug to the EconoMi$er2 controller are made by installer.4. If a single power source is to be used, size wire to include power exhaust MCA and MOCP.

Check MCA and MOCP when power exhaust is powered through the unit. Determine the new MCA including the power exhaust using the fol-lowing formula:MCA New = MCA unit only + MCA of Power ExhaustFor example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 35, with CRPWREXH030A00 power exhaust.MCA New = 28.9 amps + 1.6 amps = 30.5 ampsIf the new MCA does not go over the MOCP published, then MOCP would not change. The MOCP in this example is 35 amps, the MCA Newis below 35, therefore the MOCP is OK. If “MCA New” is larger than the published MOCP, raise the MOCP to the next larger size. For separatepower, the MOCP for the power exhaust will be 15 amps per NEC.

Fig. 28 — EconoMi$er2 Power Exhaust Wiring — 460 V Units

See Legend on page 4.

25

4

3

5

2

8

6

7

1

10

11

9

12

PINK

VIOLET

BLACK

BLUE

YE

LLO

W

NOTE 1

NOTE 3

RUN

500 OHMRESISTOR

-+

OPTIONAL COSENSOR 4 - 20 mA

OUTPUT

50HJ540573ACTUATORASSEMBLY

RED

WHITE

ECONOMISER2 PLUG

DIRECT DRIVEACTUATOR

2

NOTES:1. Switch on actuator must be in run position for economizer to operate.2. PremierLink™ control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 dry bulb sen-

sor or HH57A077 enthalpy sensor.3. 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor.

Fig. 29 — EconoMi$er2 Wiring (With PremierLink™ or 4-20 mA Control)

Fig. 30 — Factory-Installed Non-Fused Disconnect Wiring

See Legend on page 4.

See Legend on page 4.

26

Fig. 31 — Typical MoistureMi$er™ Dehumidification Package Humidistat Wiring, 48HJ004-007(208/230-V Unit Shown)

Fig. 32 — Typical MoistureMi$er Dehumidification Package Humidistat Wiring, 48HJ008-014(208/230-V Unit Shown)

See Legend on page 4.

See Legend on page 4.

27

48/50HJ004-007

48/50HJ008-014

Fig. 33 — Motormaster® I Control Wiring Details

NOTE: Motormaster II transformer is wired for 460-v supply; it must be rewired for 208/230-v application. Be sure to insulate unused tap. Refer tocolor code.

Fig. 34 — Motormaster II Control Wiring Schematic Size 004-007 Units

See Legend on page 4.

See Legend on page 4.

28

YEL

BLK

23

21

13

11

OUTDOORFAN

CONTACTOR

OFM

BLK BLK

MM IV

BLK

YEL

BRN

YEL

BRN

YELYEL

31

4 6

H C F

BRN

BRN

QT CAP 1

OUTDOORFAN

CONTACTOR

OFM

OFM

BLK

MM IV

NOTE: Motormaster® II transformer is wired for 460-v supply; it must be rewired for 208/230-v application. Be sure to insulate unused tap. Refer tocolor code.

Fig. 35 — Motormaster II Control Wiring Schematic Size 008-014 Units

Fig. 36 — Motormaster IV Control WiringSchematic — Sizes 004-007

Fig. 37 — Motormaster IV Control WiringSchematic — Sizes 008-014

See Legend on page 4.

See Legend on page 4. See Legend on page 4.

29

Fig. 38 — Novar Controls Wiring, EMT3051

Fig. 39 — Novar Controls Wiring, EMT2024

See Legend on page 4.

See Legend on page 4.

30

OFC;C1(008-014)

(004-007)P.S.

P.S.

}

}

}

FIELD COMMON

POWER EXHAUST/ENERGY RECYCLER

COMMUNICATIONS

DEFROST BOARD

TL

DR DR

DR

BLU

BLU

COOLINGUNIT ONLY

„ …HP ONLY

IGC

TB4

MGV

RED

ORN

ORN

BLU

YEL

RED

SPACE TEMP./ SETPOINT ADJUSTMENT

INDOOR AIRQUALITY SENSOR

WHTPNKBRN

WHT

REDBLK

BRN

WHT

OPTIONALACCESSORY

VIO

GRA

GRA

PNKORN

VIOVIO

PNK

PNK

GRA

RED

BLK

RED

BLU

BLU

YEL

YEL

WHT

BLK

ORN

PNK

BRN

BLU

BLUREDBRN

BRNBLK

YEL

ORN

PNK

GRAGRA

BLU

GRA ORN

PNK

PNKORN

WHT

ORN

VIO

BLK

BLK

ORN

GRA

ORN

ORN

BLK

BLK

BLK ORN

VIO

WHT

WHT

WHT

ORN

GRA

WHT

PNK

ORN

VIO

ORN

ORN

VIO

VIO

ORN

IFC

HR1

1

7

4

9

2

3

5

6

8

HR2 13

HR1 C2C1

OF2OF1

R

R

DFT

C

Y

O

C

C

C

CW2

A

T

BTIMER

RDT

5IFR

6

2 4

1

2

C1

D2

W2/H

W1/M

D1/P

C2/C

7

12

11

9

5

1

4

3

2

8

10

6

7

12

11

9

5

1

4

3

2

8

10

6

GVR

CR

BR

L2

L2

L2

L1BM

RTFU

C

CM

1 2 3

J1

FANLOGIC

SAFETYLOGIC

HVTRAN

GVR

J2

W

IFO

5 AMPG

R

RS

RS

LS

LS

CS

CS

GV

YEL

GVFS

C

21

3

CLO 1

X

LOGIC 21

3

CLO 2

X

PremierLink

J1

J5

J6

J4

J8J7J9J2COMMS 0-20mA PP/MP RELAYSPWR

AN

ALO

GD

ISC

RE

TE

0-20m

AIN

HK50AA039

2TR

TR1 3ACCUSENSOR

SAT

OAT

GAS HEATING UNIT ONLY

GAS HEATING UNIT ONLY

3

K1

LOGIC

ECONOMISER2

*

PNK

BRN

WHT

X

W2

C

W1

Y2

Y1

G

R

CONNECTIONBOARD

W2

C

Y1

G

R

Y2

W1

CONNECTIONBOARD

C

G

R

Y2

W1

X

CONNECTIONBOARD

W2

C

Y1

G

R

Y2

W1

X

DDC CONTROL THERMOSTAT CONTROL

24 VAC

RMTOCC

CMPSAFE

FSD

NOT USED

C

X

SFS

*When connecting DDC or thermostat controls, wire to connection board. Do not wire directly to PremierLink™ board.

Fig. 40 — Typical PremierLink Controls Wiring

See Legend on page 4.

31

TB - 1R

Y1

Y2

W1

W2

G

C

X

1

2

3

4

5

6

7

8

TB - 3

1

2

3

4

5

6

7

8

TB - 2

1

2

3

4

5

6

7

8

J6A

NA

LO

GJ5

0 - 20 mA

INJ4

DIS

CR

ET

E

J1PWR

J2COMMS

J90-20 mA

J8Relays

HK50AA039

BRN

BRN WHT

WHT

RED

PNK

PNK

ORNORN

ORN

ORN

GRA

GRAORN

RED

J7PP/MP

WHT

BLK

RED

RED

PNK

WHT

BLK

PNK

WHT

BLU

ORN

YEL

GRN

BRN

BRN

RED

RED

BRN

BRN

BLK

BLK

BRN

BRN

BLU

BLU

1

2

3

4

5

6

7

8

9

10

11

12

1

2

3

4

5

6

7

8

9

10

11

12

PNK

PNK

VIO

VIO

GRA

ORN

PNK

PNK

ACCUSENSOR

TR

TR1 3

2

GRA

GRA

GRA

GRA

GRA

SAT

BRNORN

BLK

RED

Space Temp./ SetPoint Adjustment

Indoor AirQuality Sensor

OAT

PNK

VIO

YEL

YEL

BLU

BLU

EconomiSer24 - 20mA

BLK

RED

WHT

PremierLink

GRN

YEL

BLU

BLU

BLU

Outdoor AirQuality Sensor

Power Exhaust/Energy Recycler

CCNComm.

RMTOCC

SFS

CMPSAFE

FSD

RTU TerminalBoard

Fig. 41 — PremierLink™ Controls with Dual Terminal Block (Units Produced 10/02 - Present)

See Legend on page 4.

32

See Legend on page 4.

Fig. 42 — PremierLink™ Controls with Dual Terminal Block and 62AQ Energy$Recycler

33

SMOKE DETECTOR

THERMOSTAT TERMINALBOARD

RC RRED

SMOKE DETECTOR

IGC BOARD

BMBLACK BLACK

IFM

SMOKE DETECTOR

THERMOSTAT TERMINALBOARD

RC RRED

SMOKE DETECTOR

IGC BOARD

IFOBLACK BLACK

IFC

NOTE: Break the Red wire from terminal “RC” on thermostat to terminal “R” on the terminal board.

Fig. 43 — Smoke Control Unit — Shutdown Wiring(48HJ004-014 Single-Phase Units)

NOTE: Break the Black wire from terminal “BM” on the IGC board to the indoor-fan motor (IFM).

NOTE: Break the Red wire from terminal “RC” on thermostat to terminal “R” on the terminal board.

Fig. 44 — Smoke Control Unit — Shutdown Wiring(48HJ004-014 3-Phase Units)

NOTE: Break the Black wire from terminal “IFO” on the IGC board to the “IFC” terminal.

See Legend on page 4.

See Legend on page 4.

34

FROMTHERMOSTAT“Y1” ORECONOMIZER

2 1 3

CLO

BRN

BRN

CorCR

COMPRESSORSAFETIES

TIME GUARD® II

T1 T3 T2

FROMTHERMOSTAT“Y2” ORECONOMIZER

TIME GUARD II

T1 T3 T2

COMPRESSORSAFETIES

CR

BRN

SINGLE COMPRESSOR UNITS

DUAL COMPRESSOR UNITS

Fig. 45 — Time Guard II Control Wiring

Fig. 46 — Two-Position Damper Wiring

See Legend on page 4.

See Legend on page 4.

35

Fig. 47 — Factory-Installed 62AQ Energy$Recycler, 208/230-V COBRA™ Energy Recovery Units —Size 008-012

See Legend on page 4.

36

Fig. 48 — Factory-Installed 62AQ Energy$Recycler, 208/230-V COBRA™ Energy Recovery Unit —Size 014

See Legend on page 4.

37

SIG COM

SPACE TEMPERATURE SENSOR(33ZCT56SPT)

W2

R

Y1

Y2

W1

G

C

X

HM

OC

T STAT

UNIT

W2

W1

W2

W1

HM

HM

CONTROL BOX

CONTROLBOX

8 7 6 5 4 3 2 12 1

H G 24 VACOR

24 VDC

NC ALARMRELAYCONTACTS

COMNO }

0-10VDC

4-20mA

+

+-

+ -

12345678

BLUBRNBLK

COM4-20mA

TB2 TB1

PREMIERLINKCONTROLS

HM

R

HUMIDISTAT

INDOOR AIR QUALITY (CO ) SENSOR2

2 3 4 5 61

SW1

SEN SET

Cool Warm

BRN (GND)BLU (SPT)

RED(+)WHT(GND)

BLK(-) CCN COM

SENSOR WIRING

JUMPERTERMINALSAS SHOWN

BLK(T56)

Fig. 49 — COBRA™ Energy Recycler — Wiring with PremierLink™ Controls

See Legend on page 4.

38

W2

R

Y1

Y2

W1

G

C

X

HM

OC

T STAT

UNIT

W2

W1

W2

W1

HM

HM

R

BASE UNITCONNECTION

BOARD

CONTROL BOX

CONTROLBOX

THERMOSTATCONNECTION

BOARD

G

C

Y1Y2

W1

W2OC

DEHUM

LIGHT COMMERCIAL THERMIDISTAT

CONNECTIONBOARD

Fig. 50 — COBRA™ Energy Recycler — Wiring with Standard Controls

See Legend on page 4.

39

Fig. 51 — Typical Wiring Schematic for 62AQ Energy$Recycler as a Field-Installed Accessory

See Legend on page 4.NOTES:

1. If any of the original wire furnished must be replaced, it must bereplaced with type 90° C wire or its equivalent.

2. Use copper conductors only.3. TRAN is wired for 230 v unit. If unit is to be run with 208 v power

supply, disconnect BLK wire from 230 v terminal and connect to208 v terminal.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 111 Catalog No. 534-80109 Printed in U.S.A. Form 48HJ-3W Pg 40 1-03 Replaces: 48/50HJ-7W,

48/50HJ-8WBook 1 4Tab 1a 6a

Copyright 2003 Carrier Corporation