User ManualTable of ContentsTROUBLESHOOTING CHART33SERVICE TABLE OF CONTENTS34Checking Voltage35Checking Heater Elements52Checking Wiring35Thermostat & Wiring35& Heat Pumps52Cooling Anticipator36Heating Anticipator36Air Conditioners54Checking Encoded Thermostats36Checking Transformer & Control Circuit37Heat Pumps55Checking Cycle Protector37Electric Heater (optional item)58Checking Time Delay Relay37Checking Heater Limit Control(S)59Checking Contactor and/or Relays38Checking Heater Fuse Line59Checking Contactor Contacts38Checking Heater Elements59Checking Fan Relay Contact38Refrigeration Repair Practice60Copeland Comfort™ Alert Diagnositics39Leak Testing60Checking Loss of Charge Protector41Evacuation60Checking High Pressure Control41Charging61Checking Low Pressure Control41Checking Compressor Efficiency62Checking Capacitor41Resistance Check42ASX14, ASZ13, GSZ13 Units63Capacitance Check42Thermostatic Expansion Valve63Checking Fan & Blower Motor S-106 Overfeeding66Windings (PSC Motors)43Underfeeding66Checking Fan & Blower Motor (ECM Motors) 43 S-108 Superheat66Checking ECM Motor Windings46Checking Subcooling66ECM CFM Adjustments46Two Speed Application67Blower Performance Data48Heat Pump Heating Mode67Checking GE X13™ Motors48Checking Expansion Valve Operation67Checking Compressor Windings49Fixed Orifice Restriction Devices67Resistance Test49Checking Restricted Liquid Line68Ground Test49Refrigerant Overcharge68Unloader Test50Non-condensables68Operation Test50Compressor Burnout68Testing Crankcase Heater (optional item)51Refrigerant Piping69Checking Reversing Valve and Solenoid51Testing Defrost Control51& Static Pressure Drop Across Coils71Testing Defrost Thermostat51Air Handler External Static71Checking Heater Limit Control(s)52Coil Static Pressure Drop72Size: 1.24 MBPages: 80Language: EnglishOpen manual