Carrier 38E Service Manual

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HEATING & COOLING38E,QCondensing Units and Heat PumpsService Manual38EH,EN,ES,QH,QN,QSTABLE OF CONTENTSPageINTRODUCTION. 1, 2Models and SEER Ranges. 1Factory-Installed Options. 2SAFETY CONSIDERATIONS . . . . .. 3SERVICE. 3Cabinet. 3• REMOVING LOUVERED CASING• REMOVING FAN ORIFICE• ELECTRICAL BOX ACCESSElectrical. 5-11• CONTACTORS• CAPACITORS• TIME GUARD II• CRANKCASE HEATER• PRESSURE SWITCHES• DEFROST THERMOSTATS ,• PRINTED-CIRCUIT CONTROL BOARD• FAN MOTORS• SERVICE SENTRY CONTROL BOARD• OUTDOOR THERMOSTATSPageCompressor.12-15• MECHANICAL FAILURES• ELECTRICAL FAILURES• SYSTEM CLEAN-UP AFTER BURN-OUT• COMPRESSOR REMOVAL ANDREPLACEMENTRefrigeration System .15-20• REFRIGERATION CYCLE• LEAK DETECTING• SERVICE VALVES• CARRIER COMPATIBLE FITTING• ACCURATER™ (Bypass Type) COMPONENTS• REVERSING VALVE• COIL REMOVAL• COIL CLEANING• LIQUID LINE STRAINER• ACCUMULATOR• SYSTEM CHARGING (for all approvedcombinations)INTRODUCTIONThis Service Manual enables a service technician to similar, however, there are distinct differences. Tables 1service and repair a family of similar condensing units and 2 help to differentiate these differences,and heat pumps. Outwardly, many models appearModels and SEER RangesTable 1 — Condensing Units Table 2 — Heat PumpsMODEL DIAMETERS SEER* MODEL DIAMETERS SEER* C:O.P.f(in.) (Nominal) (in.) (Nominal) (Minimum)38EH015 22 9.0 38QH015 22 •9.0 2.8538EH018 22 9.0 38QH018 22 9.0 2.8538 EH 024 22 9.0 38QH024 30 9.0 2.8538 EH 030 30 9.0 38QH030 30 9.0 2.8538 EH 036 30 9.0 38QH036 30 9.0 2.8538 EH 042 30 9.0 38QH042 30 9.0 2.8538 EH 048 30 9.0 38QH048 30 9.0 2.8538 EH 060 30 9.0 38QH060 39 9.0 2.8538EN015 17 8.0 38QN015 17 8.0 2.5538EN018 17 8.0 38QN018 17 8.0 2.5538EN024 17 8.0 38QN024 22 8.0 2.5538EN030 22 8.0 38QN030 22 8.0 2.5538EN036 22 8.0 38QN036 30 8.0 2.5538EN042 30 8.0 38QN042 30 8.0 . 2.5538EN048 ' 30 8.0 38QN048 30 8.0 2.5538EN060 30 8.0 38QN060 30 8.0 2.5538ES018 30 ■ 10.0 38QS018 30 10.0 2.8538ES024 30 10.0 38QS024 30 10.0 2.8538ES030 30 10.0 38QS030 30 10.0 2.8538ES036 30 10.0 38QS036 30 10.0 2.8538ES042 30 10.0 38QS042 30 10.0 2.8538ES048 30 10.0 38QS048 30 10.0 2.8538ES060 39 10.0 38QS060 39 10.0 2.85SEER Seasonal Energy Efficiency Ratio. The higher the number, the fC.O.P. — Coefficient of Performance (heating), determined by dividingless electrical power required to reach a given capacity. SEER Btu output by power input required to produce this Btu output,is derived by dividing output energy by input energy.Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Book 11 |1 |4 |4 PC101 Catalog No. 563-857 Printed in U.S.A. Form38E,Q-1SM Pg 1 11-85 Replaces: NewTab 3a|5a|2a|5a For replacement items use Carrier Specified Paris.