Carrier 38QF User Manual

Number One Air Conditioning i\Mer^Sb Division of ^ 0 Carrier CorporationCarrier Parkway • Syracuse, N.Y. 13221Heat Pump — Outdoor SectionCONTENTSSAFE

'®° 70 74 78 82 86 90PRESSURE AT SUCTION SERVICE VALVE (PSIG)Fig 13 — 38QF036 with 28HQ.VQ042, 40AQ036 or 40QB/QH042 Cooling Cycle Charging

66 68 70 72 74 76 78 80 82 84 86 88 PRESSURE AT SUCTION SERVICE VALVE (PSIG)Fig. 17 — 38QF048 with 40QB/QH048,060,062. 28HQ,VQ048 or060 Cooling Cycle

Compressor Removal — See Table? for compressor information and Fig. 21 for component location. Shut off power to unit. Remove refrigerant

3. Start unit and run until suction pressure reaches 5 psig (see Caution).4. Shut unit off and frontseat suction valve.5. Vent remaining pressure t

RETAINERrLARE NUTFLARECONNECTIONFig. 22 — AccuRater™ (Bypass Type) Components5. Slide piston out by inserting a small soft wire, with small

COIL REPAIR — A flare-union coupling is used for E-coil repair. A kit is available, with instructions, thru Carrier Service Parts.COMPRESSOR c

TROUBLESHOOTING CHART — COOLING CYCLEON

TROUBLESHOOTING CHART — HEATING CYCLE

For replacement items use Carrier Specified Parts.Manufacturer reserves the right to discontinue, or change at any time, specifications or designs wit

Top Cover Removal — Top cover can be removed for wiring or servicing heat pump. Loosen decorative strip and slide down off screw

ON THE ROOF; MOUNT UNIT ON A LEVEL PLATFORM OR FRAME: Proper precaution must be taken for support of unit in roof design. Elevate

WARNING: If unclcrsi7ed. damaged or elliptiv.-all\-s!iapL'd uibing is used when making Compatible bitting, leaks ma\ result.If 1-1/8 in. tubi

Table 4 — Electrical Data (60 Hz)OPERCOMPRBRANCH CIRCUITUNIT38QFV/PHVOLTAGE*FANFLAMin WireMax Wire Min GndMax Fuse or HACR Type Ckt Bkr Amps**MCAMaxMi

THERMOSTAT SUBBASE HH93AZI73 OR HH93AZI7540AQ.40FQ OR 40QB FAN COIL 38QFCOOLING CONTROL KIT TERM INALTERMINAL BOARD BOARDCOOLING AND ONE-STAGE HEAT

MOUNT OUTDOOR THERMOSTAT on control ring, to the left of the low-voltage control connection. See Fig. 1.Attach brackets with short shee

To check and/or adjust charging during cooling season, use correct Cooling Cycle Charging Chart (Fig. 7, 9, 11, 13, 15, 17, 19) an

320300280260240ina.lU>%o>□:UJtoo DO_l^ 22015 cn </)UJtc Q.200180160COOLING CYCLEmCFM-860:WET BULB TEMP AIR ENT INDOOR UNIT:75F62 f:67 F85