Carrier 48GP (N) 024-060 Installation And Operating Instructions Manual

Contents

f. Loosen set-screw that secures wheel to motor shaft, removescrews that secure motor mount brackets to blower housing,and slide motor and motor mount out of blower housing.2. Remove and clean blower wheel as follows:a. Ensure proper reassembly by marking wheel orientation.b. Lift wheel from housing. When handling and/or cleaningblower wheel, be sure not to disturb balance weights (clips)on blower wheel vanes.c. Remove caked-on dirt from wheel and housing with abrush. Remove lint and/or dirt accumulations from wheeland housing with vacuum cleaner, using soft brush attach-ment. Remove grease and oil with mild solvent.d. Reassemble wheel into housing.e. Reassemble motor into housing. Be sure set-screw(s) aretightened on motor shaft flats and not on round part ofshaft.f. Pivot blower access panel back into place. Adjust wireassemblies so that wiring follows proper pathways.g. Reinstall unit access panel.3. Restore electrical power, then gas supply to unit. Start unit andcheck for proper blower rotation and motor speeds duringheating and cooling cycles.TROUBLESHOOTINGSTART-UP CHECKLISTTable 2—ICM FIOP Physical Data—Unit 48GP (Continued)THIS DATA APPLIES TO 48GP UNITS WITH THE ICM INDOOR MOTOR FIOPUNIT SIZE 48GP 048090 048115 048130 060090 060115 060130NOMINAL CAPACITY (ton) 4 4 4 5 5 5OPERATING WEIGHT (lb.) 421 421 421 468 468 468COMPRESSORSQuantityScroll1REFRIGERANT (R-410A)Quantity (lb.) 9.5 9.5 9.5 10.0 10.0 10.0REFRIGERANT METERING DEVICEOrifice ID (in.)AccuRater™ Piston.073 .073 .073 .086 .086 .086CONDENSER COILRows...Fins/in.Face Area (sq ft)2...1712.32...1712.32...1712.32...1716.42...1716.42...1716.4CONDENSER FANNominal CfmDiameter (in.)Motor Hp (Rpm)3300221/4 (1100)3300221/4 (1100)3300221/4 (1100)3300221/4 (1100)3300221/4 (1100)3300221/4 (1100)EVAPORATOR COILRows...Fins/in.Face Area (sq ft)4...154.74...154.74...154.74...154.74...154.74...154.7EVAPORATOR BLOWERNominal Airflow (Cfm)Size (in.)Motor (HP)160011 X 103/4160011 X 103/4160011 X 103/4200011 X 101.0200011 X 101.0200011 X 101.0FURNACE SECTION*Burner Orifice No. (Qty...Drill Size)Natural GasBurner Orifice No. (Qty...Drill Size)Propane Gas3...383...463...333...423...313...413...383...463...333...423...313...41HIGH-PRESSURE SWITCH (psig)CutoutReset (Auto)610 ± 15420 ± 25LOSS-OF-CHARGE/LOW-PRESSURE SWITCH(Liquid Line) (psig)CutoutReset (Auto)20 ± 545 ± 10RETURN-AIR FILTERS (in.)Throwaway 24 X 30 X 1 24 X 30 X 1 24 X 30 X 1 24 X 30 X 1 24 X 30 X 1 24 X 30 X 1* Based on altitude of 0 to 2000 ft.Table 3—48GP with ICM FIOP Electrical DataUNITSIZE 48GP V-PH-HZVOLTAGERANGE COMPRESSOR OUTDOOR FANMOTORINDOOR FANMOTOR POWER SUPPLYMIN MAX RLA LRA FLA FLA MCA MAX FUSEOR CKT. BKR.024 208/230–1–60 187 253 13.5 61.0 0.9 4.3 22.1 30030 208/230–1–60 187 253 14.7 73.0 0.9 4.3 23.6 30036 208/230–1–60 187 253 15.4 83.0 0.9 6.8 27.0 35042 208/230–1–60 187 253 18.6 105.0 0.9 6.8 31.0 40048 208/230–1–60 187 253 20.5 109.0 1.6 6.8 34.0 40060 208/230–1–60 187 253 27.6 158.0 1.6 9.2 45.2 6013