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INDEX
IMPORTANT INFORMATION .......................................................................................................... 4
PRODUCT IDENTIFICATION - *PH15**M4*.................................................................................. 6
ACCESSORIES ............................................................................................................................... 7
GPGHFR101-103 ....................................................................................................................................................... 8
GPH13MFR FILTER RACK ....................................................................................................................................... 9
PGMDD101-103 DOWNFLOW MANUAL FRESH AIR DAMPERS .......................................................................... 10
PGMDMD102-103 DOWNFLOW MOTORIZED FRESH AIR DAMPERS .................................................................. 10
PGMDH102-103 HORIZONTAL MANUAL FRESH AIR DAMPERS .......................................................................... 10
PGMDH102-103 HORIZONTAL MOTORIZED FRESH AIR DAMPERS .................................................................... 10
SQRPG101-103 SQUARE TO ROUND CONVERTER, DOWNFLOW ...................................................................... 11
SQRPGH101-103 SQUARE TO ROUND CONVERTER, HORIZONTAL ................................................................... 11
GPH13MED103 DOWNFLOW ECONOMIZER ......................................................................................................... 12
PGEH102-103 HORIZONTAL ECONOMIZER ........................................................................................................... 12
PGC101-103 ROOF CURBS .................................................................................................................................... 13
PRODUCT DESIGN ...................................................................................................................... 13
LOCATION AND CLEARANCES ............................................................................................................................. 13
COMPRESSEOR ..................................................................................................................................................... 14
INDOOR BLOWER MOTOR .................................................................................................................................... 14
ELECTRICAL WIRING ............................................................................................................................................ 15
LINE VOLTAGE WIRING......................................................................................................................................... 15
SYSTEM OPERATION .................................................................................................................. 16
COOLING ................................................................................................................................................................ 16
COOLING CYCLE ................................................................................................................................................... 16
HEATING CYCLE .................................................................................................................................................... 16
DEFROST CYCLE ................................................................................................................................................... 17
FAN OPERATION .................................................................................................................................................... 17
AIRFLOW ADJUSTMENTS FOR INDOOR BLOWER MOTOR ............................................................................... 17
SCHEDULED MAINTENANCE..................................................................................................... 20
ONCE A MONTH ..................................................................................................................................................... 20
ONCE A YEAR ........................................................................................................................................................ 20
TEST EQUIPMENT ................................................................................................................................................. 20
SERVICING ................................................................................................................................... 22
COOLING /HEAT PUMP- SERVICE ANALYSIS GUIDE .......................................................................................... 21
S-1 CHECKING VOLTAGE ...................................................................................................................................... 22
S-2 CHECKING WIRING ......................................................................................................................................... 23
S-3 CHECKING THERMOSTAT, WIRING, AND ANTICIPATOR ............................................................................... 23
S-3A Thermostat and Wiring .......................................................................................................................... 23
S-3B Cooling Anticipator ................................................................................................................................ 23
S-3C Heating Anticipator ................................................................................................................................ 23
S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT .................................................................................. 24
S-7 CHECKING CONTACTOR AND/OR RELAYS ................................................................................................... 24
S-8 CHECKING CONTACTOR CONTACTS ............................................................................................................. 24