Goodman [A/G]PG - Servicing; Servicing Table of Contents

SERVICING
27
TABLE OF CONTENTS
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
S-1 Checking Voltage.......................................... 28
S-2 Checking Wiring ............................................ 29
S-3 Checking Thermostat, Wiring & Anticipator .. 29
S-3A Thermostat & Wiring ..................................... 29
S-3B Cooling Anticipator ........................................ 29
S-3C Heating Anticipator ........................................ 29
S-4 Checking Transformer & Control Circuit ....... 29
S-7 Checking Contactor and/or Relays................ 30
S-8 Checking Contactor Contacts ....................... 30
S-9 Checking Fan Relay Contact ........................ 30
s-15 Capacitor Check ........................................... 31
S-15A Resistance Check......................................... 31
S-15B Capacitance Check ....................................... 31
S-16A Checking Fan & Blower Motor
Windings (PSC Motors) ............................... 32
S-16B Checking Fan & Blower Motor (ECM Motors) 32
S-16C Checking ECM Motor Windings .................... 35
S-16D Checking GE X-13™ Motors ......................... 36
S-17 Checking Compressor Windings ................... 36
S-17A Resistance Test ............................................ 36
S-17B Ground Test .................................................. 37
S-17C Unloader Tet Procedure ................................. 37
S-17D Operation Test .............................................. 38
S-18 Testing Crankcase Heater (optional item) ..... 38
S-100 Refrigeration Repair Practice ......................... 38
S-101 Leak Testing ................................................. 38
S-102 Evacuation .................................................... 39
S-103 Charging ........................................................ 40
S-104 Checking Compressor Efficiency .................. 39
S-105 Thermostatic Expansion Valve ...................... 41
S-106 Overfeeding ................................................... 41
S-107 Underfeeding ................................................. 41
S-108 Superheat ..................................................... 41
S-109 Checking Subcooling .................................... 41
S-110 Checking Expansion Valve Operation ........... 42
S-111 Fixed Orifice Restriction Devices .................. 42
S-112 Checking Restricted Liquid Line .................... 43
S-113 Refrigerant Overcharge .................................. 43
S-114 Non-condensables ........................................ 43
S-115 Compressor Burnout ..................................... 43
S-200 Checking External Static Pressure ............... 44
S-201 Checking Temperature Rise .......................... 44
S-300 Testing Primary Limit Control ........................ 45
S-301 Testing Auxiliary Limit ................................... 45
S-302 Checking Flame Rollout Switch .................... 46
S-303 Testing Inducer Motor .................................... 47
S-304 Testing Gas Valve ......................................... 47
S-305 Checking Main Burners ................................. 47
S-306 Checking Orifices .......................................... 48
S-307 Checking Gas Pressure ................................ 48
S-308 Checking For Delayed Ignition ...................... 49
S-309 Checking for Flashback ................................. 49
S-310 Checking Pressure Control ........................... 49
S-311 High Altitude Application............................... 50
S-314 Checking Flame Sensor ................................ 51