Amana VCA Service Instructions Manual page 20

S-1 CHECKING VOLTAGE ..................................................................................................................................... 21
S-2 CHECKING WIRING ........................................................................................................................................ 22
S-3 CHECKING THERMOSTAT, WIRING, AND ANTICIPATOR ............................................................................. 22
S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT ................................................................................ 22
S-5 CHECKING CYCLE PROTECTOR .................................................................................................................. 23
S-6 CHECKING TIME DELAY RELAY ..................................................................................................................... 23
S-7 CHECKING CONTACTOR AND/OR RELAYS .................................................................................................. 23
S-8 CHECKING CONTACTOR CONTACTS ........................................................................................................... 24
S-12 CHECKING HIGH PRESSURE CONTROL ...................................................................................................... 24
S-13 CHECKING LOW PRESSURE CONTROL ...................................................................................................... 25
S-14 CHECKING SCROLL COMPRESSOR DISCHARGE THERMOSTAT .............................................................. 25
S-15 CHECKING CAPACITOR ................................................................................................................................. 25
S-16 CHECKING FAN AND BLOWER MOTOR WINDINGS .................................................................................... 27
S-17 CHECKING COMPRESSOR WINDINGS ........................................................................................................ 27
S-18 TESTING CRANKCASE HEATER .................................................................................................................... 29
S-20 CHECKING DEFROST RELAY CONTACTS .................................................................................................... 29
S-21 CHECKING REVERSING VALVE AND SOLENOID ......................................................................................... 29
S-22 REVERSING VALVE REPLACEMENT ............................................................................................................. 30
S-23 DEFROST TIMER BOARD ............................................................................................................................... 30
S-24 TESTING DEFROST TIMER BOARD .............................................................................................................. 33
S-25 TESTING DEFROST CONTROL (30°/60°) ...................................................................................................... 35
S-40 BBA/BBC CONTROL BOARD OPERATION .................................................................................................... 35
S-41 BBC INTERFACE BOARD OPERATION .......................................................................................................... 36
S-42 BMA CONTROL BOARD OPERATION ............................................................................................................ 37
S-60 ELECTRIC HEATER ......................................................................................................................................... 37
S-61 CHECKING HEATER FUSE LINK .................................................................................................................... 38
S-62 CHECKING HEATER ELEMENTS ................................................................................................................... 38
S-63 AMBIENT TEMPERATURE CONTROL ........................................................................................................... 38
S-64 LAC__A, LOW AMBIENT CONTROL ............................................................................................................... 39
S-65 PCK__A, PRESSURE CONTROL KIT & .......................................................................................................... 39
S-66 FFK02A & FFK03A, FOSSIL FUEL KITS .......................................................................................................... 40
S-100 REFRIGERATION REPAIR PRACTICE ........................................................................................................... 40
S-101 LEAK TESTING ................................................................................................................................................ 40
S-102 EVACUATION ................................................................................................................................................... 41
S-103 CHARGING ...................................................................................................................................................... 42
S-104 CHECKING COMPRESSOR EFFICIENCY ...................................................................................................... 43
S-105 THERMOSTATIC EXPANSION VALVE ............................................................................................................ 43
S-106 OVERFEEDING ............................................................................................................................................... 43
S-107 UNDERFEEDING ............................................................................................................................................. 44
S-108 SUPERHEAT .................................................................................................................................................... 44
S-109 CHECKING SUBCOOLING .............................................................................................................................. 45
S-110 CHECKING EXPANSION VALVE OPERATION ................................................................................................ 45
S-111 CAPILLARY TUBES/RESTRICTOR ORIFICES ............................................................................................... 45
S-113 CHECKING RESTRICTED LIQUID LINE ......................................................................................................... 46
S-114 OVERCHARGE OF REFRIGERANT ................................................................................................................ 46
S-115 NON-CONDENSABLES ................................................................................................................................... 46
S-116 COMPRESSOR BURNOUT ............................................................................................................................. 46
S-120 REFRIGERANT PIPING ................................................................................................................................... 47
S-200 DUCT STATIC PRESSURES AND/OR STATIC PRESSURE DROP ACROSS COIL ....................................... 51
S-201 AIR HANDLER EXTERNAL STATIC ................................................................................................................. 51
S-202 COIL STATIC PRESSURE DROP .................................................................................................................... 51
Servicing Section Index