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
- Model Number Reference Guide
- Serial Number Reference Guide
- Product Features
- 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
- 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
- Chassis Installation
- How To Connect
- Install WRT2 Wireless Programmable 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
- Basic Troubleshooting
- Malfunction Analysis
- Unit Lost Power
- Control Panel Does Not Work
- Malfunction of Temperature Sensor
- E4 Function Error
- E8 Function Error
- E9 Function Error
- Electric Heater Not Running
- Electric Heater Not Running
- 7K Cool+ Electric Heat 230 V
- 9K Cool+ Electric Heat 230v and 265v
- 12K Cool+ Electric Heat 230v and 265v
- 15K Cool+ Electric Heat 230v
- 7K Cool+ Heat Pump 230v
- 9K Cool+ Heat Pump 230v and 265v
- 12K Cool+ Heat Pump 230v and 265v
- 15K Cool+ Heat Pump 230v
- PZE07K3SB,PZE09K3SB, PZE09R3SB, PZE12K3SB, PZE12R3SB, PZE15K3SB
- PZH07K3SB, PZH09K3SB, PZH09R3SB, PZH12K3SB, PZH12R3SB, PZH15K5SB
- Reference Sheet of Celsius and Fahrenheit
- Resistance Table of THERMISTORS (5K)
69 PB
TROUBLESHOOTING
Malfunction Analysis
Malfunction Possible Reasons How to solve
"E4 indoor air outlet temperature sen-
sor failure/air blow out over
heat in electric heat mode"
"Indoor air outlet temperature sensor
open circuit or short circuit;
Indoor lter gets dirty or something
blocks the air intake."
"Check the sensor connection. If the
sensor is broken, replace with a new
one.Clean the lter and clean the air
way." See gures 703 and 704.
E5 Outdoor coil temperature sensor
failure.
Outdoor coil temperature sensor open
circuit or short circuit
Check the sensor connection. If the
sensor broken, replace with a new one.
See gure 703.
E8 Overheat protection/defrosting "Indoor fan failure/dirty lter/refrig-
erating system failure/indoor coil
temperature sensor failure"
Check the indoor fan/clean lter/rell
refrigerant/replace indoor coil sensor.
See gure 705 -710
E9 High pressure protection. "Outdoor fan failure/refrigerating sys-
tem failure/high pressure switch fail-
ure/outdoor coil temp sensor broken"
"Check outdoor fan/refrigerating pipe
system/high pressure switch/outdoor
coil temp sensor."