Service and Parts Manual (2016, 2017, 2018, 2019, 2020, 2021, 2022)
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
- General Specifications 7-9k Electric Heat
- General Specifications 7-9k Heat Pump Models
- General Specifications 12-15k Electric Heat
- General Specifications 12-15k Heat Pump
- Electrical Data
- Function and Control
- Dip Switch Function #1
- Dip Switch Function #2
- Dip Switch Function #3&4
- Dip Switch Function #5&6
- Dip Switch Function #7
- Refrigeration Sequence Of Operation
- Refrigerant System Diagram
- Remove The Chassis
- Remove The Chassis
- Indoor Motor, Wheel, & Heating Element Assembly
- Outdoor Motor, Blade, & Shroud Assembly
- Electronic Board & Electrical Component Replacement
- PTAC Installation Recommendations
- Wall Sleeve Installation Instructions (PDXWS)
- Alternate Wall Installations
- PXDR10 Drain Kit Installation
- External Drain
- PXGA Standard Grille
- Electrical Wiring for 265 Volt Models
- Chassis Install Preparation
- Chassis Installation
- How To Connect
- Thermostat
- Final Inspection & Start-up Checklist
- 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 -Special Procedure in Case of Compressor Burnout
- PCB Printed Diagram Board 1
- PCB Printed Diagram Board 2
- Testing Component Voltage at Electronic Control Board
- Testing Line Voltage
- Basic Troubleshooting
- Error Codes
- Malfunction of Temperature Sensor
- Maintenance Method for Normal Malfunction
- PDE07
- PDH07
- PDE09, PDE12, PDE15
- PDH09, PDH12, PDH15
- PARTS CATALOG
- PDE07K, PDE07R, PDE09K, PDE09R, PDE12K, PDE12R, PDE15K, PDE15R
- PDH07K, PDH07R, PDH09K, PDH09R, PDH12K, PDH12R, PDH15K, PDH15R
- Reference Sheet of Celsius and Fahrenheit
- Resistance Table of Indoor Ambient Temperature Sensor (15K)
- Resistance Table of Tube Temperature Sensors for Indoor and Outdoor(20K)
- Resistance Table of Discharge Temperature Sensor for Outdoor(50K)
100 PB
TROUBLESHOOTING
Error Codes
No. Malfunction Name Error
Code
A/C Status Possible Causes
6 Electric Heater
Protection Error
A2 LOCKS OUT OPERATION
The purpose of A2 protection is
electric heater safety while PTAC’s
normal operation, so we reserved
more buffer.
Normal voltage uctuation will
usually not trigger A2 protection.
10% above or below
Current range of single electric
heater:
1.00 kW heater: 2.5A-7A
1.55kW heater: 4A-9A
2.45kW heater: 6A-14A
Current range when electric heater
combined:
3.45kW heaters: 9A-20A
5.00kW Heaters: 12.5A-29A
If current over above range, A2
protection will be triggered. f
the sensor detects current over
2A when electric heater is not
working, or if the sensor detects
current difference between L and
N line are over 2.5A, A2 protection
will be triggered.
1. Open heater
2. Defective logic board
3. Indoor fan damage
4. Main pcb detects current leak
5. Loose wireing on board or heater harness
6. A2 protection might also be triggered by intefer-
ence, disconnect plug for a few minutes to reset
and clear A2 protection.
7 Compressor Over
current protection
E5 Over 17 amps through compressor
for 3 seconds compressor and
condenser fan will stop and indoor
will operate
1. User need to reset unit by unplug and reconnect
unit
2. Check for dirty condenser or open compressor
3. Check power supply
8 Overload detection
protection
H3 The voltage of power source is too
low.
The air ow volume of condenser
is too
1.Fan motor locked up.
2. Coil is dirty.
3. The outdoor temperature is higher than the
operation temperature allowed for this unit.
9 Low Refrigerant
protection
FO The unit will not operate 1. Check indoor coil thermistor location
2. (Refer to the resistance table for temperature
sensor) thermistor resistance 20k ohms at 77°F
6 The unit will
“attempt” to
provide heating
or cooling,
dependent
upon the error
in wiring and/
or conguration
of the wired
controller
Status light blinks 9 times, off for 3
seconds, then repeats
Improper connection and/or improper
conguration of wired controller.