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TABLE OF CONTENTS
Introduction ............................................................................................................................................................ 3
Typical Unit Components ....................................................................................................................................... 3
Unit Identifi cation ................................................................................................................................................... 4
Unit Specifi cations ................................................................................................................................................. 5
Sequence Of Operation ......................................................................................................................................... 6
Electrical Rating Tables ......................................................................................................................................... 7
Power Cord Information ......................................................................................................................................... 7
Digital Control Operation ....................................................................................................................................... 8
Digital Control Features .................................................................................................................................... 9-10
Remote Thermostat / Low Voltage Control Connections .....................................................................................11
Digital Control User Input Confi guration .............................................................................................................. 12
Digital Control Diagnostics and Test Mode ......................................................................................................... 13
Calculating the Approximate CFM ....................................................................................................................... 14
Refrigerant Charging ....................................................................................................................................... 14-16
Metering Device ................................................................................................................................................... 17
Reversing Valve Description/Operation .............................................................................................................. 17
Testing the Coil .................................................................................................................................................... 18
Compressor Checks ....................................................................................................................................... 19-21
Capacitors ............................................................................................................................................................ 21
Routine Maintenance ........................................................................................................................................... 22
Troubleshooting Char ts ...................................................................................................................................23-24
Wiring Diagram - Cooling Without Electric Heat ................................................................................................. 25
Wiring Diagram - Cooling With Electric Heat ...................................................................................................... 26
Wiring Diagram - Heat Pump With Electric Heat ................................................................................................ 27