Carrier 50HJ015 User Manual

HEATING & COOLING50HJ015,024 Single-Package Rooftop Units Electric Cooling with Electric Heat OptionInstallation, Start-Up and ServiceInstructions

START-UPUse the following information and Start-Up Checklist on page CL-1 to check out unit PRIOR to start-up.Unit Preparation — Check that unit has

Table 5 — Fan Performance Data, 50HJ015 UnitsФEXTERNAL STATIC PRESSURE (in. wg)AIRFLOW(Cfm)0.2 0.4 0.6 0.81.01.2 1.41.61.82.0RpmWattsRpm WattsRpm Watt

Table 7 — Accessory/FlOP Static Pressure Drop* (in. wg)UNIT50HJUNITVOLTAGECFMELECTRIC HEATERS (kW)ECONOMIZER208/230-3-604.0005.0006.000 7,2000 05 (14-

9.10.1112,Rotate motor mount assembly back past original position toward evaporator coil.Remove motor mounting nuts D and E (both sides). Lift motor

Table 8 — Alternate Drive Components Table, 50HJ024UNIT50HJMOTORHPDRIVESOURCEFANRPMMOTORSHEAVE DATUM DIMENSION* (in.)MOTOR SHEAVE PART NO.tBLOWER SHEA

iTEST PROCEDURE RESULTSA Disconnect factory-installed resistor from terminals Sr and +1 LED (light-emitting diode) should be on2. Motor drives toward

Protective DevicesCOMPRESSOR PROTECTIONOvercurrent — Each compressor has one manual reset, calibrated trip, magnetic circuit breaker. Do not bypass c

PACKAGED SERVICE TRAININGOur packaged service training programs provide an excellent way to increase your knowledge of the equipment discussed in this

START-UP CHECKLIST(Remove and Store with Job File)MODEL NO.: DATE:_______SERIAL NO.: _ TECHNICIAN.PRE-START-UP:□ VERIFY THAT ALL PACKING MATERIALS H

INSULATED PANE', FOR SIDE SUHPLY AND RETURN (50P09001S1 ONLY)NOM. 5/4 X 4 (32) X (102) TYP 4 PLC51 -6(457) . ^ .(50P0900151 ONLY) lb4)0“(305)PLA

EVAPORATOR- FAN MOTOREVAPORATOR- FAN MOTORCURB (50P0900I5I)TRANSITION DUCTFig. 2 — Horizontal Supply/Return Curb DetailsDIMENSION AUNIT 50HJFt-in. mm0

ICONTROL BOX ACCESS•25% AIR On ''ECONOMIZER HOODpO -3 7/16' i (87)C }0’-3" (76)O'-l"1(102)SECTION A-ADIMENSIONSUNITAB

Table 1 — Physical DataUNIT SIZE 50HJ OPERATING WT (lb) AI/AI*Unit Al/Cu* Cu/Cu* Economizer Roof Curbt COMPRESSOR Number Oil (oz)152203021602270110200

Step 3 — Field Fabricate Ductwork — Secure all ducts to building structure. Use flexible duct connectors between unit and ducts as required.

Step 6 — Make Electrical ConnectionsFIELD POWER SUPPLY — Unit is factory wired for voltage shown on nameplate.When installing units, provide a d

Table 2 — Electrical DataUNIT50HJV-PH-HZVOLTAGERANGECOMPRESSORCONDENSER FAN MOTOREVAPORATOR FAN MOTORACCESSORY/OPTIONAL ELECTRIC HEATERS*POWER SUPPLYN

COOLINGLOCKOUTSWITCHECONOMIZER MOTORECONOMIZERCONTROLMODULEmsf$FILTERS-ECONOMIZERDAMPERASSEMBLYFig. 13 — Economizer Damper Assembly — End ViewCHANGEOV