Service and Parts Manual (2018, 2019, 2020, 2021, 2022)

2 PB
Table of Contents
INTRODUCTION 4
Important Safety Information 4
Personal Injury Or Death Hazards 5
Operation of Equipment in During Construction 7
Model Number Reference Guide 8
Serial Number Reference Guide 9
Product Features 10
SPECIFICATIONS 12
General Specications 7-9k Electric Heat 12
General Specications 7-9k Heat Pump Models 13
General Specications 12-15k Electric Heat 14
General Specications 12-15k Heat Pump 15
Electrical Data 17
OPERATION 20
Function and Control 20
Refrigeration Sequence Of Operation 25
Refrigerant System Diagram 26
Routine Maintenance 27
INSTALLATION 28
PTAC Installation Recommendations 28
Wall Sleeve Installation Instructions (PDXWS) 29
Alternate Wall Installations 30
PXDR10 Drain Kit Installation 33
External Drain 34
PXGA Standard Grille 35
Chassis Install Preparation 36
Chassis Installation 38
How To Connect 39
Install WRT2 Wireless Programmable Thermostat 40
Final Inspection & Start-up Checklist 48
R-410A SEALED SYSTEM REPAIR 49
Refrigerant Charging 50
Undercharged Refrigerant Systems 51
Overcharged Refrigerant Systems 52
Restricted Refrigerant System 53
Sealed System Method of Charging/ Repairs 54
COMPONENT TESTING 55
Hermetic Components Check 55
Reversing Valve Description And Operation 56
Testing The Reversing Valve Solenoid Coil 57
Checking The Reversing Valve 58
Touch Test Chart : To Service Reversing Valves 60
Compressor Checks 61
Compressor Replacement -Special Procedure in Case of Compressor Burnout 64
TROUBLESHOOTING 65
Basic Troubleshooting 65
Malfunction Analysis 67
Unit Lost Power 70
Control Panel Does Not Work 71
Malfunction of Temperature Sensor 72
E4 Function Error 73
E8 Function Error 74
E9 Function Error 76
Electric Heater Not Running 81
Electric Heater Not Running 82
WIRING DIAGRAMS 83
7K Cool+ Electric Heat 230 V 83
9K Cool+ Electric Heat 230v and 265v 84
TABLE OF CONTENTS