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
45 PB
INSTALLATION
Final Inspection & Start-up Checklist
28
Final Inspection & Start-up
Checklist
Inspect and ensure that all components and accessories have been
installed properly and that they have not been damaged during the
installation process.
Check the condensate water drain(s) to ensure they are adequate for
the removal of condensate water, and that they meet the approval of
the end user.
Ensure that all installations concerning clearances around the unit
have been adhered to.Check to ensure that the unit air filter, indoor
coil, and outdoor coil are free from any obstructions.
Ensure that the entire installation is in compliance with all applicable
national and local codes and ordinances that have jurisdiction.
Secure components and accessories, such as the chassis, decorative
front cover and control door.
Start the unit and check for proper operation of all components in
each mode of operation.Instruct the owner or operator of this units
operation, and the manufacturer’s recommended routine maintenance
schedule.
NOTE: A log for recording the dates of maintenance and/or service
is recommended.
Present the owner or operator of the equipment with the Installation
& Operation manual, all accessory installation instructions, and the
name, address and telephone number of the Authorized Friedrich
Warranty Service Company in the area for future reference if
necessary.
Routine Maintenance
To ensure proper unit operation and life expectancy the following mainte-
nance procedures should be performed on a regular basis.
WARNING
Electrical Shock Hazard
Unplug Unit or turn off electrical power
to unit prior to performing maintenance
procedures
Failure to do so can result in electrical
shock or death
Front Panel Air Filter
To ensure proper unit operation, the air filters should be cleaned at least
monthly, and more frequently if conditions warrant.The unit must be
turned off before the filters are cleaned.
To remove the air filters,filter grasp the top of the filters and lift out of the
front cabinet.Reverse the procedure to reinstall the filters.
Clean the filters with a mild detergent in warm water, and allow them to
dry thoroughly before reinstalling.
Fresh Air Filter
The fresh air filter should be cleaned or replaced after 3 months of use
for maximum effectiveness The unit must be turned off before the filters
are replaced.
To replace the fresh air filters,drag the unit from wall sleeve and pull the
tape sticked to fresh air filter.
Coils & Chassis
NOTE: Do not use a caustic coil cleaning agent on coils or base pan.
Use a biodegradable cleaning agent and degreaser.The use of harsh
cleaning materials may lead to deterioration of the aluminum fins or the
coil end plates.
The indoor coil and outdoor coils and base pan should be inspected pe-
riodically (annually or semi-annually) and cleaned of all debris (lint, dirt,
leaves, paper, etc ) as necessary. Under extreme conditions, more frequent
cleaning may by required.Clean the coils and base pan with a soft brush
and compressed air or vacuum.A pressure washer may also be used,
however, you must be careful not to bend the aluminium fin pack.Use a
sweeping up and down motion in the direction of the vertical aluminium
fin pack when pressure cleaning coils.
NOTE: It is extremely important to insure that none of the electrical
and/or electronic parts of the unit get wet. Be sure to cover all electrical
components to protect them from water or spray.
Decorative Front
The decorative front and discharge air grille may be cleaned with a mild
soap or detergent.Do NOT use solvents or hydrocarbon based cleaners
such as acetone, naphtha, gasoline, benzene, etc , to clean the decorative
front or air discharge grilles.
Use a damp (not wet) cloth when cleaning the control area to prevent
water from entering the unit, and possibly damaging the electronic control.
Fan Motor & Compressor
The fan motor & compressor and are permanently lubricated, and require
no additional lubrication.
Wall Sleeve
Inspect the inside of the wall sleeve and drain system periodically (annually
or semi-annually) and clean as required.
Under extreme conditions, more frequent cleaning may be necessary.
Clean both of these areas with an antibacterial and antifungal cleaner.
Rinse both items thoroughly with water and ensure that the drain outlets
are operating correctly. Check the sealant around the sleeve and reseal
areas as needed.