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
10 PB
INTRODUCTION
Product Features
19
Friedrich PTAC Digital Control and Unit Features
The new Friedrich digital PTAC has state of the art features to improve guest comfort, indoor air quality and conserve energy. Through the use of specifically
designed control software for the PTAC industry Friedrich has accomplished what other Manufacturer’s have only attempted – a quiet, dependable, affordable
and easy to use PTAC. Below is a list of features and their benifit to the owner.
ONLY TWO MODELS
BETTER
DEHUMIDIIFICATION
SOFT START
OPERATION
MERV 8 OUTDOOR AIR
FILTER
REMOTE THERMOSTAT
OPERATION
Some applications require the use of a wall-mounted thermostat. All new Friedrich PTACs may be
switched from unit control to remote thermostat control easily without the need to order a special model
or accessory kit.
INTERNAL DIAGNOSTIC
PROGRAM
The Friedrich digital PTAC features a self-diagnostic program that can alert maintenance to component
failures or operating problems. The internal diagnostic program saves properties valuable time when
diagnosing running problems.
ELECTRONIC
TEMPERATURE
LIMITING
By limiting the operating range, the property can save energy by eliminating “max cool” or “max heat” situ-
ations common with older uncontrolled systems. The new electronic control allows owners to set operat-
ing ranges for both heating and cooling independently of one another.
ROOM FREEZE
PROTECTION
When the PTAC senses that the indoor room temperature has fallen to 50
°
F, the unit will cycle on the
fan (high) and the electric strip heat to raise the room temperature to 55
°
F, and then cycle off again. This
feature works regardless of the mode selected and can be turned off.
CONDENSATE REMOVAL
SYSTEM
Condenser fan utilizes slinger ring technology to pick up condensate from the base pan and disperse it on
to the condenser coil where it evaporates. This helps to cool the coil and increase the energy efciency
of the unit.
DC INVERTER
FreshAire PTACs utilize a DC inverter rotary compressor to ensure part load efficiencies and reliable
operation.
UNIVERSAL ELECTRIC
HEATER
Unit has a universal power cord with 20 Amp coming standard out of the box.
All units are factory run tested to ensure trouble free operation.
FACTORY RUN-TEST