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INDEX
S-11 CHECKING LOSS OF CHARGE PROTECTOR .............................................................................................. 25
S-15 CHECKING CAPACITOR ................................................................................................................................25
S-15A Resistance Check ................................................................................................................................. 26
S-15B Capacitance Check ............................................................................................................................. 26
S-16 CHECKING MOTORS ..................................................................................................................................... 27
S-16B Checking Fan & Blower Motor (ECM Motors) .................................................................................... 27
S-16C Checking ECM Motor Windings .......................................................................................................... 30
S-16D Checking GEX13™ Motors .................................................................................................................. 30
S-17 CHECKING COMPRESSOR WINDINGS ........................................................................................................ 31
S-17A Resistance Test .................................................................................................................................... 31
S-17B Ground Test .......................................................................................................................................... 31
S-17C Unloader Test Procedure .................................................................................................................... 32
S-17D Operation Test...................................................................................................................................... 32
S-18 TESTING CRANKCASE HEATER ................................................................................................................... 33
S-21 CHECKING REVERSING VALVE AND SOLENOID ......................................................................................... 33
S-24 TESTING DEFROST CONTROL ..................................................................................................................... 33
S-25 TESTING DEFROST THERMOSTAT............................................................................................................... 33
S-50 CHECKING HEATER LIMIT CONTROL(S) ...................................................................................................... 33
S-52 CHECKING HEATER ELEMENTS ................................................................................................................... 33
S-100 REFRIGERATION REPAIR PRACTICE.......................................................................................................... 34
S-101 LEAK TESTING (NITROGEN OR NITROGEN-TRACED) ............................................................................... 34
S-102 EVACUATION ................................................................................................................................................ 34
S-103 CHARGING ................................................................................................................................................... 35
S-104 CHECKING COMPRESSOR EFFICIENCY .................................................................................................... 36
S-105 THERMOSTATIC EXPANSION VALVE ......................................................................................................... 36
S-106 OVERFEEDING ............................................................................................................................................. 37
S-107 UNDERFEEDING ........................................................................................................................................... 37
S-108 SUPERHEAT ................................................................................................................................................. 37
S-109 CHECKING SUBCOOLING ........................................................................................................................... 38
S-110 CHECKING EXPANSION VALVE OPERATION ............................................................................................. 41
S-112 CHECKING RESTRICTED LIQUID LINE ....................................................................................................... 41
S-113 REFRIGERANT OVERCHARGE .................................................................................................................... 41
S-114 NON-CONDENSABLES ................................................................................................................................. 41
S-115 COMPRESSOR BURNOUT ........................................................................................................................... 41
S-122 REVERSING VALVE REPLACEMENT........................................................................................................... 42
S-200 CHECKING EXTERNAL STATIC PRESSURE ............................................................................................... 43
S-201 CHECKING TEMPERATURE RISE ................................................................................................................ 43
WIRING DIAGRAMS ................................................................................................................ 44
OT18-60A OUTDOOR THERMOSTAT ..................................................................................................................... 44
OT18-60A OUTDOOR THERMOSTAT ..................................................................................................................... 45
HKR** HEAT KITS .................................................................................................................................................. 46
GPH13MED ECONOMIZER FOR GPH15**M4* ........................................................................................................ 47