Carrier 48HJD005-007 Specifications

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

10Table 2A — 48HJ Electrical Data Standard Motor (Units Without Electrical Convenience Outlet)Table 2B — 48HJ Electrical Data Standard Motor (Units Wi

11Table 2C — 48HJ High-Static Motor Units Without Electrical Convenience OutletTable 2D — 48HJ High-Static Motor Units With Electrical Convenience Out

12OPTIONAL DURABLADE ECONOMIZER — The option-al economizer hood assembly is packaged and shipped in thefilter section. Damper blades and control boar

139. Replace outdoor-air opening panel using screws fromStep 2. Replace filter access panel. Ensure the filter ac-cess panel slides along the tracks a

14U-SHAPEDHOLE(NOT SHOWN)ECONOMIZERPLUGWIRINGHARNESS4321056789UNITTOPOAT(TERMINALS ARE UP)OUTSIDE AIRSCREENMINIMUMPOSITIONOPEN31TPP1T1425SSODCTRBREV.B

15OPTIONAL ECONOMI$ER — See Fig. 23 for EconoMi$ercomponent locations.1. To remove the existing unit filter access panel, raise thepanel and swing the

16SEAL STRIPSEAL STRIPOUTDOOR AIRHOOD TOPSCREENRETAINEROUTDOOR AIRINLETSCREENSOUTDOOR AIRHOOD SIDESASSEMBLEDEXHAUST HOODOUTDOOR AIROPENINGPANELECONOMI

17OUTDOORAIRSENSORTEMPTEMPCOMOUTPWRBROWNVIOLETWHITEREDBROWNTEMPTEMPCOMOUTPWRRETURNAIRSENSORVIOLETWHITEREDOATCOMOAH-15 VRATCOMRAH+15 VECONOMI$ERCONTROL

18CO2 Control Setup — If a CO2 sensor is not being used, pro-ceed to the next section. If a CO2 sensor is being used, performthe following:1. Determin

19Step 9 — Adjust Evaporator-Fan Speed — Ad-just evaporator-fan speed to meet jobsite conditions.Tables 5A and 5B show fan rpm at motor pulley setting

2ROOF CURBACCESSORY“A”UNIT SIZE48/50HJCRRFCURB001A00 1′-2″ [356]004-007CRRFCURB002A00 2′-0″ [610]NOTES:1. Roof curb accessory is shippeddisassembled.2

20Table 5A — 48HJ Fan Rpm at Motor Pulley Setting With Standard Motor *Approximate fan rpm shown (standard motor/drive).Table 5B — 48HJ Fan Rpm at Mot

21Table 8 — Motor Nominal HorsepowerTable 9 — Outdoor Sound Power (Total Unit) LEGENDTable 10 — 48HJ004 Fan Perfor

22Table 12 — 48HJ005 Fan Performance — Vertical Discharge Units With Standard MotorTable 13 — 48HJ005 Fan Performance — Vertical Discharge Units With

23Table 14 — 48HJ006 Fan Performance — Vertical Discharge Units With Standard MotorSingle-Phase Units3-Phase UnitsTable 15 — 48HJ006 Fan Performance —

24Table 16 — 48HJ007 Fan Performance — Vertical Discharge Units With Standard MotorTable 17 — 48HJ007 Fan Performance — Vertical Discharge Units With

25Table 18 — 48HJ004 Fan Performance — Horizontal Discharge Units With Standard MotorTable 19 — 48HJ004 Fan Performance — Horizontal Discharge Units W

26Table 20 — 48HJ005 Fan Performance — Horizontal Discharge Units With Standard MotorTable 21 — 48HJ005 Fan Performance — Horizontal Discharge Units W

27Table 22 — 48HJ006 Fan Performance — Horizontal Discharge Units With Standard MotorSingle-Phase Units3-Phase UnitsTable 23 — 48HJ006 Fan Performance

28Table 24 — 48HJ007 Fan Performance — Horizontal Discharge Units With Standard MotorTable 25 — 48HJ007 Fan Performance — Horizontal Discharge Units W

29PRE-START-UPProceed as follows to inspect and prepare the unit for initialstart-up: 1. Remove all access panels.2. Read and follow instructions on a

3Step 2 — Field Fabricate Ductwork — Secure allducts to roof curb and building structure on vertical dischargeunits. Do not connect ductwork to unit.

30NOTE: When the compressor is rotating in the wrong direc-tion, the unit will make an elevated level of noise and will notprovide cooling.Cooling — S

31HEATING, UNITS WITHOUT ECONOMIZER — Whenthe thermostat calls for heating, terminal W1 is energized. Theinduced-draft motor is energized and the burn

32Fig. 39 — MoistureMiser Option Operation

33SERVICECleaning — Inspect unit interior at the beginning of heat-ing and cooling season and as operating conditions require.EVAPORATOR COIL1. Turn u

34Condenser-Fan Adjustment (Fig. 43) — Shut offunit power supply. Remove condenser-fan assembly (grille,motor, motor cover, and fan) and loosen fan hu

35TO USE COOLING CHARGING CHART, STANDARDUNIT — Take the outdoor ambient temperature and readthe suction pressure gage. Refer to charts to determine w

36Fig. 48 — Cooling Charging Chart, 48HJ004 with Optional MoistureMiser Dehumidification PackageFig. 49 — Cooling Charging Chart, 48HJ005 with Optiona

37Burner Ignition — Unit is equipped with a direct sparkignition 100% lockout system. Integrated Gas Unit Controller(IGC) is located in the control bo

38Fig. 54 — Spark Gap AdjustmentLOW HEAT48HJE004, 48HJD005-007 — 72,000 BTUH INPUTMEDIUM AND HIGH HEAT48HJE005-007, 48HJF004 — 115,000 BTUH INPUT48HJF

39TROUBLESHOOTINGRefer to Tables 30-36 for troubleshooting details.Table 30 — LED Error Code Service AnalysisLEGENDSYMPTOM CAUSE REMEDYHardware failur

4Step 5 — Install Flue Hood — Flue hood is shippedscrewed to the burner compartment access panel. Removefrom shipping location and, using screws provi

40Table 31 — Heating Service AnalysisTable 32 — Durablade Economizer Service Analysis LEGENDPROBLEM CAUSE REMEDYBurners will notignite.Mi

41Table 33 — EconoMi$er Flash Code IdentificationTable 34 — EconoMi$er TroubleshootingLEGENDFLASH CODE CAUSE ACTION TAKEN BY ECONOMI$ERConstant OnNorm

42Table 35 — MoistureMiser Dehumidification Subcooler Service AnalysisPROBLEM CAUSE REMEDYSubcooler will not energize.No power to control transformer

43Table 36 — Cooling Service AnalysisPROBLEM CAUSE REMEDYCompressor and condenser fanwill not start.Power failure. Call power company.Fuse blown or ci

44Fig. 55 — Typical Wiring Schematic and Component Arrangement(208/230 3-Phase Unit Shown)

45LEGEND AND NOTES FOR FIG. 55AHA —Adjustable Heat AnticipatorC —Contactor, CompressorCAP —CapacitorCC —Cooling CompensatorCLO —Compressor LockoutCOMP

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.PC 1

5Table 1 — Physical Data LEGEND *Single phase/three phase.†Indicates automatic reset.**48HJD005-007 and 48HJE004 (72,000 Btuh heat input)

6 Table 1 — Physical Data (cont) LEGEND *Single phase/three phase.†Indicates automatic reset.**48HJD005-007 and 48HJE004 (72

7UNIT48HJSTANDARDUNITWEIGHTDURABLADEECONOMIZERWEIGHTECONOMI$ERWEIGHTCORNERWEIGHT(A)CORNERWEIGHT(B)CORNERWEIGHT(C)CORNERWEIGHT(D)Lb Kg Lb Kg Lb Kg Lb K

8Install conduit through side panel openings indicated inFig. 5. Route power lines through connector to terminal con-nections as shown in Fig. 8.Volta

9 RACEWAY LOW VOLTAGECONNECTIONSINTEGRATED GAS UNITCONTROLLER (IGC)HOLE IN END PANEL (HIDDEN)Fig. 8 — Power Wiring Connecti