Carrier 50HEQ003-006 Specifications

150HJQ004---00750HEQ003---006Single---Packag e Ro o ft o p Heat Pump UnitsInstallation, Start---Up andService InstructionsCONTENTSPAGESAFETY CONSIDERA

10Table 3—Electric Heating CapacitiesUNIT SIZEVOLTAGE(60 Hz)ACCESSORY(kW)ACCESSORY HEATERPART NUMBERC R H E A T E R --- --- A 0 0( o r --- --- B 0 0 w

11Table 4A — 50HJQ Electrical Data — Standard Motor Units Without Electrical Convenience OutletUNITSIZENOMINALVOLTAGEV-PH-HzVOLTAGERANGECOMPRESSOR OFM

12Table 4B — 50HJQ Electrical Data — High-Static Motor Units Without Electrical Convenience OutletUNIT SIZENOMINALVOLTAGEV-PH-HzVOLTAGERANGECOMPRESSOR

13Table 4C — 50HJQ Electrical Data — Standard Motor Units With Electrical Convenience OutletUNIT SIZENOMINALVOLTAGEV-PH -HzVOLTAGERANGECOMPRESSOR OFM

14Table 4D — 50HJQ Electrical Data — High-Static Motor Units With Electrical Convenience OutletUNIT SIZENOMINALVOLTAGEV-PH -HzVOLTAGERANGECOMPRESSOR O

15LEGENDF L A --- F u l l L o a d A m p sHACR --- Heating, Air Conditioning and RefrigerationIFM --- Indoor---Fan MotorLRA --- Locked Rotor AmpsMCA --

16Table 5A — 50HEQ Electrical Data — Standard Motor Units W ithout Electrical Convenience OutletUNIT SIZENOMINALVOLTAGEV-PH-HzVOLTAGERANGECOMPRESSOR O

17Table 5B — 50HEQ Electrical Data — High-Static Motor Units Without Electrical Convenience OutletUNITSIZENOMINALVOLTAGEV-PH-HzVOLTAGERANGECOMPRESSOR

18Table 5C — 50HEQ Electrical Data — Standard Motor Units W ith Electrical Convenience OutletUNIT SIZENOMINALVOLTAGEV-PH -HzVOLTAGERANGECOMPRESSOR OFM

19Table 5D — 50HEQ Electrical Data — High-Static Motor Units W ith Electrical Convenience OutletUNIT SIZENOMINALVOLTAGEV-PH -HzVOLTAGERANGECOMPRESSOR

2ROOF CURBAC CESSORYA UNIT SIZECRRFCURB001A011 -2 [356]50HJQ004-007CRRFCURB002A012 -0 [610]NOTES:1. Roof curb accessory is shipped disassembled.2. Ins

20LEGENDF L A --- F u l l L o a d A m p sHACR --- Heating, Air Conditioning and RefrigerationIFM --- Indoor---Fan MotorLRA --- Locked Rotor AmpsMCA --

21LEGENDC—ContactorCOMP — CompressorIFC — Indoor Fan ContactorNEC — National Electrical Code208/230-1-60208/230-3-60460-3-60(SIZE 006 AND 007 ONLY)208

22Route the thermostat cable or equivalent single leads of coloredwire from the subbase terminals to the low-voltage connectionson the unit (shown in

23SCREWS(SIDE)MANUALOUTDOOR-AIRADJUSTMENTSCREWSDAMPERBLADEFILTERACCESSPANELOUTDOOR AIROPENINGPANELC06012Fig. 13 --- Damper Panel with ManualOutdoor--A

24Table 6 — Pr emierLink™ Sensor UsageAPPLICATIONOUTDOOR AIRTEMPERATURE SENSORRETURN AIRTEMPERATURE SENSOROUTDOOR AIRENTHALPY SENSORRETURN AIRENTHALPY

25C06016Fig. 17 --- Factory Installed PremierLinkt ControllerPREMIERLINKCONTROLHINGEDDOORPANELC06017Fig. 18 --- Factory Installed PremierLinkt(Shown I

26b. Connect the RED wire to the 24 vac GND terminal(TR) on enthalpy sensor and to pin 4 on 12-pinharness.c. Connect the GRAY/ORN wire to J4-2 on Prem

27LEDABCDTR TR1SOSR231++BRNREDGRAY/ORNGRAY/REDWIRE HARNESSIN UNITBLKREDS+(RETURN AIRENTHALPYSENSOR)S+(OUTDOORAIRENTHALPYSENSOR)ENTHALPY CONTROLLERNOTE

28SIDEPANELINDOORCOILACCESSPANELINDOORCOILACCESSPANELCAULKHERETOPSIDEPANELC06025Fig. 26 --- Indoor Coil Access Panel RelocationBTOPPANELINDOOR COILACC

29FOR OCCUPANCY CONTROLREPLACE JUMPER WITHFIELD-SUPPLIED TIME CLOCKLEGENDDCV— Demand Controlled VentilationIAQ — Indoor Air QualityLA — Low Ambient Lo

3MAXIMUM ALLOWABLEDIFFERENCE (in.)A-B B-C A-C0.5 1.0 1.0C06002Fig. 2 --- Unit Leveling TolerancesRefer to Accessory Roof Curb Installation Instruction

30Table8—EconoMi$erIVSensorUsageAPPLICATIONECONOMI$ER IV WITH OUTDOOR AIRDRY BULB SENSORAccessories RequiredOutdoor Air Dry Bulb None. The outdoor air

31airstream is used for cooling. When using this mode ofchangeover control, turn the enthalpy setpoint potentiometer fullyclockwise to the D setting.

32CONTROLCURVEABCDCONTROL POINTAPPROX. deg. F (deg. C)AT 50% RH73 (23)70 (21)67 (19)63 (17)12 14 16 18 20 22 24 26

33TR124 VacCOMTR24 VacHOT12345EFEF1+_P1T1PTNEXH2V 10VEXHSetSet2V 10V2V 10VDCVDCVFreeCoolBCADSO+SR+SRSOAQ1AQDCVMinPosOpenMaxN1C06038Fig. 39 --- EconoMi

34Table 9 — CO2Sensor Standard SettingsSETTING EQUIPMENT OUTPUTVENTILATIONRATE(cfm/Person)ANALOGOUTPUTCO2CONTROL RANGE(ppm)OPTIONALRELAY SETPOINT(ppm)

35To change fan speed:1. Shut off the unit power supply and tag disconnect.2. Loosen the belt by loosening the fan motor mounting nuts.(See Fig. 41.)C

36Table 12 — Indoor-Fan Motor Performance — High-Static MotorsUNIT50HJQ50HEQUNITPHASEMAXIMUMCONTINUOUS BHP*MAXIMUMOPERATING WATTS*UNIT VOLTAGEMAXIMUMA

37GENERAL NOTES FOR FAN PERFORMANCE DATA TABLES1. Extensive motor and electrical testing on these units ensures that the full range of the motor can b

38Table 17 — Fan Performance 50HEQ004, 50HJQ004 — Vertical Discharge Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. w

39Table 19 — Fan Performance 50HEQ005, 50HJQ005 — Vertical Discharge Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. w

4NOTES:1. Dimension in ( ) is in millimeters.2. Hook rigging shackles through holes in base rail, as shown in detail ‘‘A.’’Holes in base rails are cen

40Table 20 — Fan Performance 50HEQ006, 50HJQ006 — Vertical Discharge Units;Standard Motor (Belt Drive)* — Single-Phase UnitsAIRFLOW(Cfm)EXTERNAL STATI

41Table 21 — Fan Performance 50HEQ006, 50HJQ006 — Vertical Discharge Units;Standard Motor (Belt Drive)* — Three-Phase UnitsAIRFLOW(Cfm)EXTERNAL STATIC

42Table 22 — Fan Performance 50HEQ006, 50HJQ006 — Vertical Discharge Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. w

43Table 23 — Fan Performance 50HJQ007 — Vertical Discharg e Units; Standard Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4 0.

44Table 24 — Fan Performance 50HJQ007 — Vertical Discharg e Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4

45Table 25 — Fan Performance 50HEQ003 — Horizontal Discharge Units; Standard Motor (Belt Drive)**AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.1 0.2

46Table 27 — Fan Performance 50HEQ004, 50HJQ004 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in.

47Table 29 — Fan Performance 50HEQ005, 50HJQ005 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in.

48Table 30 — Fan Performance 50HEQ006, 50HJQ006 — Horizontal Discharge Units;Standard Motor (Belt Drive)* — Single-Phase UnitsAIRFLOW(Cfm)EXTERNAL STA

49Table 31 — Fan Performance 50HEQ006, 50HJQ006 — Horizontal Discharge Units;Standard Motor (Belt Drive)* — Three-Phase UnitsAIRFLOW(Cfm)EXTERNAL STAT

5STEP 5 —MAKE ELECTRICAL CONNECTIONSFailur e to follow thi s warning could resul t in the ins tal l erbeing liabl e for persona l i njury of othe rs.U

50Table 32 — Fan Performance 50HEQ006, 50HJQ006 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in.

51Table 33 — Fan Performance 50HJQ007 — Horizontal Discharge Units; Standard Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.4 0

52Table 34 — Fan Performance 50HJQ007 — Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOW(Cfm)EXTERNAL STATIC PRESSURE (in. wg)0.2 0.

53PRE-START-UPFailur e to obse rve the foll ow i ng wa r nings coul d r esul t inseri ous pers onal inj ur y:1. Follow recogni z ed safe t y pra cti c

54Compressor restart is accomplished by manual reset at thethermostat by turning the selector switch to OFF position andthen to ON position.Allow unit

55Routin e 2 (DXCTLO<OAT<68_F)S If only Y1 energized, the economizer maintains aSASP = (SATLO1 + 3).S If SAT > SASP + 5 and economizer positi

56C06044Fig. 45 --- Cleaning Outdoor CoilThe controller uses the following conditions to determineeconomizer cooling:S Enthalpy is LowS SAT reading is

573. Remove the outdoor coil corner post. (See Fig. 45.) Tohold the top panel open, place the coil corner post betweenthe top panel and center post. (

58service port on the suction line. Mount the temperature sensingdevice on the suction line and insulate it so that outdoor ambienttemperature does no

59C06051Fig. 52 --- Cooling Charging Chart ---- 50HJQ00765.0070.0075.0080.0085.0090.0095.00100.0040.00 45.00 50.00 55.00 60.00 65.00 70.00 75.00 80.00

6C06006Fig. 6 --- 50HJQ Base Unit Dimensions50HJQ,HEQ

6065.0070.0075.0080.0085.0090.0095.00100.0040.00 45.00 50.00 55.00 60.00 65.00 70.00 75.00 80.00Suction Line Pressure (psig)448.16498.16548.16598.1664

6165.0070.0075.0080.0085.0090.0095.00100.0040.0 45.0 50.0 55.0 60.0 65.0 70.0 75.0 80.0Suction Line Temperature(degF)Suction Line Pressure (psig)448.1

624. Return EconoMi$er IV settings and wiring to normalafter completing troubleshooting.DCV (DEMAND CONTROLLED VENTILATION)ANDPOWEREXHAUSTTo check DCV

63LEGENDLSM — Limit Switch (Manual Reset)OFM — Outdoor-Fan MotorOLR — Overload RelayP—PlugPL — Plug AssemblyQT — Quadruple TerminalRVS — Reversing Val

64Table 35 — Heating and Cooling Tro ubleshootingPROBLEM CAUSE REMEDYCompressor andOutdoor FanWill Not Sta rt.Power failure. Call power company.Fuse b

65Table 36 — EconoMi$er IV Input/Output LogicINPUTS OUTPUTSDemand ControlVentilation (DCV)Enthalpy*Y1 Y2Compressor NTerminal†Outdoor ReturnStage1Stage

66START-U P CHECKLIST(Remove and Store in Job File)I. PRELIMINARY INFORMATIONMODEL NO.: SERIAL NO.:DATE: TECHNICIAN:II. PRE-START-UP (insert checkmark

7C06058Fig. 7 --- 50HEQ Base Unit Dimensions50HJQ,HEQ

8Table 1—Physical Data 50HJQ004--00750HJQ UNI T SIZE 004 005 006 007NOMINAL CAPACITY (tons)3 4 5 6OPERAT ING WEIGHT (lb)Unit550 560 630 630EconoMi$er

9Table 2—Physical Data 50HEQ003--00650HEQ UNIT SIZE 003 004 005 006NOMINAL CAPACITY (tons) 23 4 5OPERAT ING WEIGHT (lb)Unit 550550 560 630EconoMi$er I