Carrier 48HJ004---007 Specifications

48HJ004-007Single-Package Rooftop Heating/CoolingStandard and Low NOx UnitsInstallation, Start-Up andService InstructionsCONTENTSPageSAFETY CONSIDERAT

BLK1YEL208/230-1-60(SIZES 48HJ004-006)EQUIPGNDF--t_Ii1PI ELD POWER SUPPLY_ .L .L L __FDISOON.EDT7PER NECL* ... JBLK _ TO COMPI,,I;%F'i'FIEL

UNIT48HJOO4(3 Tons)005(4 Tons)006(5 Tons)0O7(6 Tons)Table 2A -- Electrical Data -- Standard Motor Units Without Electrical Convenience OutletVOLTAGE C

Table 20 -- Electrical Data -- High-Static Motor Units Without Electrical Convenience OutletUNIT48HJO04005006007NOMINAL VOLTAGEVOLTAGE RANGE(V-Ph-Hz)

Step 8 -- Adjust Factory-Installed OptionsCOBRA TM ENERGY RECOVERY UNITS -- Please leferto the supplement provided for information on installing andop

CB -- Circuit BreakerCR -- Cooling RelayDHR -- Dehumidify RelayDSV -- Discharge Solenoid ValveHR -- Heater RelayLPS -- Low Pressure SwitchLSV -- Liqui

SCREWHOLES(TOP)HOOD_SCREENLOCATIOK(SCREENNOT SHOWN)Fig. 19 -- Outdoor-Air Damper withHood Attached0.60.5_" 0,4UIo303LUm 0.313.LU>0.2Zoo 1 2 3

Table 3- PremierLink TM Sensor UsageOUTDOOR AIR RETURN AIR OUTDOOR AIR RETURN AIRAPPLICATION TEMPERATURE SENSOR TEMPERATURE SENSOR ENTHALPY SENSOR ENT

PREMIERLINKCONTROL©©HINGEDDOORPANELPREMIERLINKCOVERFig. 21B -- PremierLink TM Controller (Installed)OUTD_R AiR i ' GRAY 'ENTHALPY SENSOR [Ec

Outdoor Air Enthalpy Sensor/Enthalpy Controller(HH57AC077) -- To wire the outdoor tfir enthalpy sensor.perform the following (see Fig. 23 and 24):NOTE

FILTER ACCESS PANEL_COMPRESSORACCESS PANELOUTDOOR-AIR OPENING ANDINDOOR COIL ACCESS PANELFig. 27- Typical Access Panel LocationsHOOD BOXBRACKETi Iii I

SLAB MOUNT (Horizontal Units Only) -- Provide a levelconcrete slab that extends a minimum of 6 in. beyond unit cab-inet. Install a gravel apron in fro

FOR OCCUPANCY CONTROLREPLACE JUMPER WITHFIELD-SUPPLIED TIME CLOCK/(F]ELDACCESSORY)REMOTE MI_POSiI[O_ POTIR_M0_FOT71_ 0_-m}--8LKECONO_I ZZR MOTORWHT_RE

2500Wz 2000w 1500Wm 1000o5000ZfI0.05 0] 15 0.25STATIC PRESSURE (in. wg)Fig. 34 -- Barometric Flow Capacity"530LUh-z_ 25cc 20LUD_I-- 15LULUEL 10Ca

outdoortemperatureis comptu'edto anadjustablesetpointselectedonthecontrol.If theoutdoor-airtemperatureisabovethesetpoint,theEconoMiSerIV will adj

usingthismodeof changeovercontrol,turntheenthalpyset-pointpotentiometerfullyclockwisetotheDsetting.Indoor Air Quality (IAQ) Sensor Input -- The IAQ in

Exhaust Set Point Adjustment -- The exhaust set point willdetermine when the exhaust fan runs based on dmnper position(if accessory power exhaust is i

EconoMiSerIVcontrollerwilloutputthe6.7voltsfiomtheCO2sensortotheactuatorwhentheCO2concentrationinthespaceisfit1100ppm.TheDCVsetpointmaybeleftfit2volts

0.350.25 -0.10.054&5ton6 ton3 ton0 i i i i [0 1000 2000 3000 4000 5000 6000Fig. 44 -- Humidi-MiZer TM Adaptive Dehumidification System Static Pres

UNIT UNIT48HJ PHASESingleO04ThreeSingle005ThreeSingle006Three007 ThreeLEGENDBhp i Brake HorsepowerTable 9 -- Evaporator-Fan Motor Data -- Standard Mot

Table 12 -- Fan Performance 48HJ004 -- Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWCFM900100011001200130014001500EXTERNAL STATIC PRES

Table 14 -- Fan Performance 48HJ005 -- Vertical Discharge Units; Standard Motor (Belt Drive)*AIRFLOWCFM120013001400150016001700180019002000EXTERNAL ST

D ALTCONNECTOR B C DRAIN GAS POWER CONTROL ACCESSORYPKG. ACCY. HOLE POWERCRBTMPWROO1A01 3/41' 3/4" [19] NPTCRBTMPWROO2A01 [19] NPT 11/4"

AIRFLOWCFM15001600170018001900200021002200230024002500Table 16 -- Fan Performance 48HJ006, Single-Phase -- Vertical Discharge Units;Standard Motor (Be

Table 18 -- Fan Performance 48HJ006 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWCFM15001600170018001900200021002200230024002500

Table 20 -- Fan Performance 48HJ007 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWCFM18001900200021002200230024002500260027002800

Table 22 i Fan Performance 48HJ004 i Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWCFM900100011001200130014001500EXTERNAL STATIC P

Table 24 i Fan Performance 48HJ005 i Horizontal Discharge Units; High-Static Motor (Belt Drive)*AIRFLOWCFM120013001400150016001700180019002000EXTERNAL

AIRFLOWCFM15001600170018001900200021002200230024002500Table 26 -- Fan Performance 48HJ006, Three-Phase -- Horizontal Discharge Units;Standard Motor (B

Table 28 -- Fan Performance 48HJ007 -- Horizontal Discharge Units; Standard Motor (Belt Drive)*AIRFLOWCFM180019002000210022002300240025002600270028002

PRE-START-UPFailure to observe the following warnings could result inserious pel.sonal injuu:1. Follow recognized safety practices and wear protec-tiv

Thesuctionanddischm'gepressurelevelsshouldnowmovetotheirnorm_flstart-uplevels.NOTE:Whenthecompressorisrotatingin thewrongdirec-tion,fileunitwillm

Theevaporator-fanoffdelaycanalsobemodified.Oncethecallforheatinghasended,thereisa10-minuteperiodduringwhichthemodificationcanoccm:If thelimitswitchtri

UM ALLOWABLEDIFFERENCE (in.)B OlOCl C0.5 1.0 1.0Fig. 3 -- Unit Leveling TolerancesStep 3 -- Install External Trap for CondensateDrain -- The unit&apos

• If compressor one is on then second stage of mechanicalcooling will be energized. Otherwise the first stage willbe energized.• Integrator resets.• E

HEATING. UNIT WITH ECONOMISER2, PREMIERLINKCONTROL AND A ROOM SENSOR -- Every 40 secondsthe controller will calculate the required heat stages (maximu

Theneteffectoftherooftopwheninhotgasreheatmodeistoprovidenearly_dllatentcapacitylemovalfiomthespacewhensensibleloadsdiminish(whenoutdoortemperatmecon-

LubricationCOMPRESSORS -- Each compressor is chmged with correctamount of oil at the factory.FAN MOTOR BEARINGS -- Fan motor bemings are of thepermane

HUMIDI-MIZER TM SYSTEM CHARGING -- The systemcharge for units wifll the Humidi-MiZer a&tptive dehumidifi-cation system is greater than that of the

TO USE COOLING CHARGING CHART, STANDARDUNIT--Take the outdoor ambient temperature trod madthe suction pressure gage. Refer to ch_uts to detennine what

Flue Gas Passageways -- To inspect the flue collec-tor box and upper areas of the heat exchanger:1. Remove the combustion blower wheel and motor assem

CLEANING AND ADJUSTMENT1. Remove burner rack from unit as described above.2. Inspect burners and, if dirty, remove burners from rack.3. Using a soft b

SCHEHATIC208/2303 BOSEE NOTE *3 _EQUP GNDi i GRN/YELI_CLOPL6 RFOR STDUNIT PL6--<_l-YECONOMI*ERI_--PNK REDIONNECTIOIBOARD.YEL*.BLU.-BLK---BRN.--RED°

TROUBLESHOOTINGUnit Troubleshooting -- Refer to Tables 34-38 for unittroubleshooting details.Table 34 -- LED Error Code Service AnalysisSYMPTOM CAUSE

36"- 54"(914-1371)POSITION ALL SEAL STRIPSIN PLACE BEFORE POSITIONINGUNIT ON ROOF CURB,DUCT ENDSEE "A_DETAILPLACE UNIT ON CURB AS CLOSE

PROBLEMBurners Will NotIgnite.Table 35 -- Heating Service AnalysisCAUSEMisaligned spark electrodes.No gas at main burners.Water ingas line.No power to

Table 38 -- Cooling Service AnalysisPROBLEMCompressor and Condenser FanWill Not Start.Compressor Will Not StartBut Condenser Fan Runs.Compressor Cycle

EconoMiSer IV Troubleshooting -- See Table 39for EconoMi$er IV logic.A functional view of the EconoMi$er is shown in Fig. 68.Typical settings, sensor

7. Remove jumper flom TR to N.8. Remove jumper fiom TR to 1.9. Remove 5.6 kilo-ohm resistor from T and TI. Reconnectwiles tit T and TI.l 0. Remove jum

INDEXAccess panels 19 FilterAltitude compensation 38 Cleaning 42Barometric flow capacity 21 Installation 19Burner ignition 46 Size 9Burner rack 46 Flu

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

UNIT48HJ_0044BHJ_OO54BHJ_OO54BHJ_O07STD. UNIT !CONOMI_ERI_ VERT. ECONIV (A) (SI (C) (D)WEIGHT WEIGHT W/P.E. WEIGHT CORNER WEIGHT CORNER WEIGHT CORNER

k -41\INTAKE LOUVERS FLUE OPENINGFig. 8-- Flue Hood Detailsi= X9" MINIMUM CLEARANCE4 SUPPORT*FROM GAS METERLEGENDNFGC -- National Fuel Gas Code*F

Table 1 -- Physical DataBASE UNIT 48 HJE/F/H/K]M/NO04 HJD/E/F/G/H/K]L/M/NO05 HJD/E/F/G/H/K]L/M/NO06 HJD/E/FO07NOMINAL CAPACITY 3 4 5 6OPERATING WEIGHT

Table 1 -- Physical Data (cont)BASE UNIT 48 HJE/F/H/K]M/N004 HJD/E/FIGIHIK/L/M/NO05 HJD/EIF/GIH/K/LIM/NO06 HJD/E/F007FURNACE SECTIONRollout Switch Cut