2
INDEX
IMPORTANT INFORMATION ........................................................................................................ 4
PRODUCT IDENTIFICATION ........................................................................................................ 6
ACCESSORIES ............................................................................................................................. 9
LIGHTING INSTRUCTIONS ........................................................................................................ 13
PRODUCT DESIGN .................................................................................................................... 19
ELECTRICAL WIRING ................................................................................................................ 20
LINE VOLTAGE WIRING ............................................................................................................. 20
GAS SUPPLY AND PIPING ......................................................................................................... 21
SYSTEM OPERATION ................................................................................................................ 24
SCHEDULED MAINTENANCE ................................................................................................... 30
SERVICING ................................................................................................................................. 31
S-1
CHECKING VOLTAGE .............................................................................................................. 35
S-2
CHECKING WIRING ................................................................................................................. 35
S-3
CHECKING THERMOSTAT, WIRING, AND ANTICIPATOR .................................................... 35
S-3A
Thermostat and Wiring ............................................................................................................ 35
S-3B
Cooling Anticipator................................................................................................................... 35
S-4
CHECKING TRANSFORMER AND CONTROL CIRCUIT ...................................................... 36
S-6
CHECKING TIME DELAY RELAY ............................................................................................ 37
S-7
CHECKING CONTACTOR AND/OR RELAYS ......................................................................... 37
S-8
CHECKING CONTACTOR CONTACTS .................................................................................. 37
S-9
CHECKING FAN RELAY CONTACTS ..................................................................................... 37
S-15
CHECKING CAPACITOR ......................................................................................................... 37
S-15A Resistance Check .................................................................................................................... 38
S-15B Capacitance Check .................................................................................................................. 38
S-16
CHECKING FAN AND BLOWER MOTOR ............................................................................... 38
S-16B ECM/ICM Motors ...................................................................................................................... 39
S-16E Testing Interface Board .......................................................................................................... 41
S-17
CHECKING COMPRESSOR WINDINGS ................................................................................ 45
S-17A Resistance Test ....................................................................................................................... 45
S-17B Ground Test .............................................................................................................................. 45
S-17D Operation Test ......................................................................................................................... 46
S-18
TESTING CRANKCASE HEATER ........................................................................................... 46
S-21
CHECKING REVERSING VALVE AND SOLENOID ................................................................ 47
S-22
REVERSING VALVE REPLACEMENT ..................................................................................... 47
S-24
TESTING DEFROST BOARD .................................................................................................. 47
S-25
TESTING DEFROST CONTROL (30°/60°) ............................................................................. 49
S-50
CHECKING HEATER LIMIT CONTROL(S) ............................................................................ 49
S-52
CHECKING HEATER ELEMENTS .......................................................................................... 49
S-53
OUTDOOR TEMPERATURE CONTROL ............................................................................... 50
S-100 REFRIGERATION REPAIR PRACTICE ................................................................................... 50
S-101 LEAK TESTING ........................................................................................................................ 50
S-102 EVACUATION ............................................................................................................................ 50
S-103 CHARGING ................................................................................................................................ 51
S-104 CHECKING COMPRESSOR EFFICIENCY ............................................................................. 52
S-105 THERMOSTATIC EXPANSION VALVE .................................................................................... 52
