Carrier 50YQ User Manual

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Fig. 15 — Cooling Charging Chart — 50YQ048Fig. 17 — Heating Operation Check Chart — 50YQ0244050 60 70 80 90SUCTION PRESSURE @ SCHRADER VALVE (PSIG

Fig. 19 — Heating Operation Check Chart 50YQ03610 20 30 40 50 60 70SUCTION PRESSURE @ SCHRADER VALVE (PSIG)Fig. 21 — Heating Operation Check Cha

AccuRater™ (Dual-Piston Type) Servicing —See Fig. 23 for dual-piston AccuRater components. The pistons have a refrigerant metering orifice thru them

11. Clean system. Add new suction line filter-drier as described below.NOTE: If a compressor failure was caused by motor winding burnout, t

6. Reassemble in reverse order.To clean fan wheel and housing, use a brush, warm water and detergent. Do not splash water on motor.Fig. 25 —

VTROUBLESHOOTING CHART — COOLING CYCLE

UJ_lO>ooz1-<liJXQC<XoOzI-ooX(/)LU_lCQDOXI-For replacement items use Carrier Specified Parts.Manufacturer reserves the right to discontinue, o

g CONDUITCONTROL-*“»WIRING0'-6j3^If DKO ELECTRIC^ HEAT Xl| DKO LINE WIRING' CONNFig. 1L> INDOOR AIRFLOW ^ OUTDOOR AIRFLOW RIGHT SIDE VI

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g. Secure all ducts to building structure. Weatherproof duct openings in wall or roof according to good construction practices."Separate dis

Table 2 — Unit Electrical Data (60-Hz)i-r'tvOPERCOMPRESSORIFMOFMBRANCH CIRCUITVOLTAGE*MinMaxFtWireMin GndMax FuseMinCircuitAmpsMODELV/PHMax MinLR

MOUNT OUTDOOR THERMOSTAT(S) — Locate maximum of 2 outdoor thermostats in the compressor section on the partition to the left of the reversin

If start thermistor is good and compressor does not start, disconnect the thermistor from starting circuit and give compressor a tem

Table 4 — Service DataUNIT 50YQ024030 036042048060R-22 CHARGE* (lb)54 5 7 5 156 77 38 6Refrig ControlAccuRater^MINDOOR FANCentrifugal — Direct Drive —

SUCTION PRESSURE <§) SCHRADER VALVE (PSIG)Fig. 11 — Cooling Charging Chart — 50YQ024Fig. 13 — Cooling Charging Chart — 50YQ036Fig. 12 — Cooling Cha