Service and Parts Manual (2018, 2019, 2020, 2021, 2022)
Table Of Contents
- INTRODUCTION
- Important Safety Information
- Personal Injury Or Death Hazards
- Operation of Equipment in During Construction
- Typical Unit Components and Dimensions
- Model Number Reference Guide
- Serial Number Reference Guide
- Product Features
- General Specifications 9-12k Heat Pump Models
- Electrical Data
- Function and Control
- Buttons and Display
- Temperature Definition
- System Basic Function
- 1) Cooling Mode
- 2) Heating Mode
- 3) Room Freeze Protection (AUTO HEATING)
- 4) Temperature Sensor Open Circuit or Short Circuit Protection
- 5) Power cut protection
- 6) Compressor and DC-inverter features
- 7) Smart fresh air system
- Advanced Functions
- Advanced Settings
- Memory Function
- FD Control (front-desk control) & 24V REMOTE THERMOSTAT
- Protection Functions
- System Configuration Fresh Air Vent Control
- Digital Control User Input Configuration
- Settings- Detailed Configurations
- 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
- Remote Control Thermostat Installation
- Front Desk Control Terminal
- Final Inspection & Start-up Checklist
- Remove Chassis
- Remove User Interface
- Open Electrical Control Box
- Remove Main PCB (logic) Board
- Remove Power Cord
- Remove Power PCB
- Remove IPM PCB (Inverter Board)
- Remove Blower Wheel (Inside Fan)
- Remove Blower Wheel Motor (Inside Fan)
- Remove Heating Element
- Remove Freshaire Components
- Remove Outdoor Fan
- Remove Reversing valve Solenoid
- Refrigerant Charging
- Undercharged Refrigerant Systems
- Overcharged Refrigerant Systems
- Restricted Refrigerant System
- Sealed System Method of Charging/ Repairs
- 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
- Check Indoor Fan Motor
- Check Outdoor Fan Motor
- Check Fan Motor Capacitors
- Main PCB (logic) Board Connector Identification
- Power PCB (Power Board) Connector Identification
- Basic Troubleshooting
- Error code and solutions
- Unit Does Not Operate
- Check Electric Heater Control
- Check Thermistors
- Check Thermistors -Resistance Table of Thermistors (5K)
- Check Thermistors -Resistance Table of Thermistors (50K)(Compressor Discharge Sensor)
- PARTS CATALOG
41 PB
INSTALLATION
PXGA Standard Grille
17
CAUTION
Unit Damage Hazard
Failure to follow this caution may result in equipment damage
or improper operation.
3. Carefully remove shipping tape from the front panel and power
vent door. See Figure 20.
Figure 20
Shipping Tape Location
Figure 21
Removing Front Panel
2
SHIPPING TAPE
FRP020
1
FRP021
4. Remove front panel,see Figure 21.
Pull out at the bottom to release it from the tabs (1). Then lift up (2).
NOTE: If the unit is mounted flush to the floor, the service cord MUST
be rerouted at the bottom of the front cover on the side closest
to the receptacle. A notch MUST be made in the front cover
side where the cord exits the unit. It is the responsibility of
the installer to create an exit notch.