Service and Parts Manual (2016, 2017, 2015)
Table Of Contents
- INTRODUCTION
- Important Safety Information
- Personal Injury Or Death Hazards
- Operation of Equipment in During Construction
- Model Number Reference Guide
- Serial Number Reference Guide
- Product Features
- General Specifications
- 230V COOLING AND HEATING PERFORMANCE
- 265V COOLING AND HEATING PERFORMANCE
- Electric Heat Data
- Dimensions
- Electrical Data
- Function and Control
- Digital Control User Input Configuration
- Digital Control
- Refrigeration Sequence Of Operation
- Refrigerant System Diagram
- PTAC Installation Recommendations
- Wall Sleeve Installation Instructions (PDXWS)
- Alternate Wall Installations
- PXDR10 Drain Kit Installation
- External Drain
- PXGA Standard Grille
- Chassis Install Preparation
- Thermostat
- Final Inspection & Start-up Checklist
- Refrigerant Charging
- Undercharged Refrigerant Systems
- Overcharged Refrigerant Systems
- Restricted Refrigerant System
- Sealed System Method of Charging/ Repairs
- Electrical
- Hermetic Components Check
- Reversing Valve Description And Operation
- Testing The Reversing Valve Solenoid Coil
- Checking The Reversing Valve
- Touch Test Chart : To Service Reversing Valves
- Compressor Checks
- Compressor Replacement
- Compressor Replacement -Special Procedure in Case of Compressor Burnout
- Basic Troubleshooting
- Malfunction Analysis
- Troubleshootin Chart
- Heat Pump
- Remote Wall Thermostat Wiring Diagram
- Cool With Electric Heat
- Heat Pump With Electric Heat
- PZE
- PZH
- Reference Sheet of Celsius and Fahrenheit
- Resistance Table for Air Indoor Temperature Sensor
- Resistance Table for Frost Protection Indoor and Outdoor Temperature Sensors
51 PB
COMPONENT TESTING
Testing The Reversing Valve Solenoid Coil
The solenoid coil is an electromagnetic type coil mounted on the reversing valve and is energized during the
operation of the compressor in the heating cycle.
1. Turn off high voltage electrical power to unit.
2. Unplug line voltage lead from reversing valve coil.
3. Check for electrical continuity through the coil. If you do not have continuity replace the coil.
4. Check from each lead of coil to the copper liquid line as it leaves the unit or the ground lug. There should be no
continuity between either of the coil leads and ground; if there is, coil is grounded and must be replaced.
5. If coil tests okay, reconnect the electrical leads.
6. Make sure coil has been assembled correctly.
NOTE: Do not start unit with solenoid coil removed from valve, or do not remove coil after unit is in operation.
This will cause the coil to burn out.
Touch Test in Heating/Cooling Cycle
WARNING
ELECTRIC SHOCK HAZARD
Disconnect power to the unit before
servicing. Failure to follow this warning
could result in serious injury or death.
BURN HAZARD
Proper safety procedures must be followed,
and proper protective clothing must be worn
when working with a torch.
Failure to follow these procedures could
result in moderate or serious injury.
WARNING
WARNING
BURN HAZARD
Certain unit components operate at
temperatures hot enough to cause burns.
Proper safety procedures must be followed,
and proper protective clothing must be
worn.
Failure to follow these procedures could
result in minor to moderate injury.
The only denite indications that the slide is in the mid-position is if all three tubes on the suction side of the valve
are hot after a few minutes of running time.
NOTE: If both tubes shown as hot or cool are not the same corresponding temperature, refer to gure 703, then
the reversing valve is not shifting properly.