Goodmans ASX Manuale Utente

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SERVICING
34
HIGH VOLTAGE!
Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to
do so may cause property damage, personal injury or death.
S-1
Checking Voltage .......................................... 35
S-2
Checking Wiring ............................................ 35
S-3
Checking Thermostat, Wiring & Anticipator .. 35
S-3A
Thermostat & Wiring ..................................... 35
S-3B
Cooling Anticipator ........................................ 36
S-3C
Heating Anticipator ........................................ 36
S-3D
Checking Encoded Thermostats ................... 36
S-4
Checking  Transformer & Control Circuit ....... 37
S-5
Checking Cycle Protector ............................. 37
S-6
Checking Time Delay Relay .......................... 37
S-7
Checking Contactor and/or Relays ................ 38
S-8
Checking Contactor Contacts ....................... 38
S-9
Checking Fan Relay Contact ........................ 38
S-10
Copeland Comfort™ Alert Diagnositics ......... 39
S-11
Checking Loss of Charge Protector ............... 41
S-12
Checking High Pressure Control ................... 41
S-13
Checking Low Pressure Control .................... 41
S-15
Checking Capacitor ....................................... 41
S-15A Resistance Check ......................................... 42
S-15B Capacitance Check ....................................... 42
S-16A Checking Fan & Blower Motor
 Windings (PSC Motors) ............................... 43
S-16B Checking Fan & Blower Motor (ECM Motors) 43
S-16C Checking ECM Motor Windings .................... 46
S-16D ECM CFM Adjustments ................................ 46
S-16E Blower Performance Data .............................. 48
S-16F
Checking GE X13™ Motors .......................... 48
S-17
Checking Compressor Windings ................... 49
S-17A Resistance Test ............................................ 49
S-17B Ground Test .................................................. 49
S-17C Unloader Test ................................................ 50
S-17D Operation Test .............................................. 50
S-18
Testing Crankcase Heater (optional item) ..... 51
S-21
Checking Reversing Valve and Solenoid ........ 51
S-24
Testing Defrost Control .................................. 51
S-25
Testing Defrost Thermostat ........................... 51
S-26
Checking Heater Limit Control(s) .................. 52
S-27
Checking Heater Elements ............................... 52
S-40
MBR/ARUF Electronic Blower Time Delay
with Single Stage Air Conditioners
& Heat Pumps .................................................. 52
S-41
MBE/AEPF with GSX, SSX, ASX, DSX
Air Conditioners ................................................ 54
S-41A MBE/AEPF with GSZ, SSZ, ASZ
Heat Pumps ...................................................... 55
S-60
Electric Heater (optional item) ........................... 58
S-61A Checking Heater Limit Control(S) ...................... 59
S-61B Checking Heater Fuse Line ............................... 59
S-62
Checking Heater Elements ............................... 59
S-100
Refrigeration Repair Practice ............................. 60
S-101
Leak Testing ..................................................... 60
S-102
Evacuation ........................................................ 60
S-103
Charging ............................................................ 61
S-104
Checking Compressor Efficiency ...................... 62
S-105A Piston Chart  - ASX13, GSX13, SSX14,
ASX14, ASZ13, GSZ13 Units ............................ 63
S-105B Thermostatic Expansion Valve .......................... 63
S-106
Overfeeding ....................................................... 66
S-107
Underfeeding ..................................................... 66
S-108
Superheat ......................................................... 66
S-109
Checking Subcooling ........................................ 66
S-109A Two Speed Application ...................................... 67
S-109B Heat Pump Heating Mode ................................. 67
S-110
Checking Expansion Valve Operation ............... 67
S-111
Fixed Orifice Restriction Devices ...................... 67
S-112
Checking Restricted Liquid Line ........................ 68
S-113
Refrigerant Overcharge ...................................... 68
S-114
Non-condensables ............................................ 68
S-115
Compressor Burnout ......................................... 68
S-120
Refrigerant Piping .............................................. 69
S-202
Duct Static Pressure
& Static Pressure Drop Across Coils ................ 71
S-203
Air Handler External Static ............................... 71
S-204
Coil Static Pressure Drop ................................. 72