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Table of Contents
Typical Unit Components .......................................... 4
Introduction................................................................ 4
Unit Identification....................................................... 5
Unit Specifications..................................................... 6
PE Series Air Conditioner–Cooling Performance ...... 6
PH Series Heat Pump–Heating/Cooling Performance..... 6
PE / Ph Series Electric Heating Data ........................ 6
Sequence Of Operation............................................. 7
Electrical Supply........................................................ 8
Supply Circuit ............................................................ 8
Electrical Rating Tables ............................................. 8
Standard Unit Operation............................................ 9
Temperature Limiting Thermostat.............................. 9
Standard Unit Control Panel...................................... 9
Remote Thermostat Unit Installation ....................... 10
Manual Changeover Thermostat............................. 10
Remote Thermostat Unit Operation..........................11
Room Thermostats...................................................11
Location....................................................................11
Heat Anticipators ..................................................... 12
Calculating Approximate CFM................................. 12
Fan Cycle Switch..................................................... 13
Hot Start Sensor...................................................... 13
Refrigerant Charging ............................................... 13
Method Of Charging ................................................ 13
Undercharged Refrigerant Systems ........................ 14
Overcharged Refrigerant Systems .......................... 15
Restricted Refrigerant Systems............................... 18
Capillary Tube Systems........................................... 17
Reversing Valve Operation...................................... 17
Electrical Circuit And Coil ........................................ 18
Checking Reversing Valve....................................... 18
Touch Test In Heating/Cooling Cycle....................... 18
Procedure For Changing Reversing Valve .............. 18
Compressor Checks................................................ 19
Locked Rotor Voltage (L.R.V.) Test ......................... 19
Single Phase Connections ...................................... 19
Determine L.R.V. ..................................................... 19
Amperage (L.R.A.) Test........................................... 19
Single Phase Running And L.R.A. Test ................... 19
External Overload.................................................... 19
Checking The External Overload............................. 19
Single Phase Resistance Test................................. 20
Compressor Replacement....................................... 20
Capacitors ............................................................... 21
Capacitor Check ..................................................... 21
Capacitor Connections ............................................ 21
System Switch Continuity Check............................ 22
Thermostat Continuity Check .................................. 22
Fan Cycle Switch Continuity Check ........................ 23
Fan Speed Switch Continuity Check ....................... 23
Emergency Heat Switch Continuity Check.............. 24
Routine Maintenance .............................................. 25
Troubleshooting Chart — Cooling .......................... 26
Troubleshooting Chart — Heating .......................... 27
Electrical Troubleshooting Chart ............................. 28
Wiring Diagrams................................................. 29-34
