2 PB
Table of Contents
INTRODUCTION 4
Important Safety Information 4
Personal Injury Or Death Hazards 5
Operation of Equipment in During Construction 7
Equipment Identification 8
Model Number Identification Guide 9
Serial Number Identification Guide 9
SPECIFICATIONS 10
Electrical Specifications 10
General Specifications 11
Electrical Requirements 11
Airflow Data (Condenser) 12
Chassis Specifications 9K, 12K 13
18K Dimensions 14
24K Dimensions 15
OPERATION 20
Sequence of Operation 20
Defrost Control Board 24
Remote Thermostat Connection 25
General Knowledge Sequence Of Refrigeration 26
REMOVE AND INSTALL THE CHASSIS 27
EXTERNAL STATIC PRESSURE 28
Checking External Static Pressure 28
Explanation of Tables 29
Indoor Airflow Data 29
Ductwork Preparation 29
Fresh Air Door 30
Checking Approximate Airflow 30
TROUBLESHOOTING 31
Control Diagnostic Modes 31
COMPONENT IDENTIFICATION 32
230 Volt Electrical Control Box 32
Defrost Control Board 33
COMPONENT TESTING 34
Reversing Valve Description And Operation 34
Testing The Reversing Valve Solenoid Coil 35
Checking The Reversing Valve 36
Touch Test Chart : To Service Reversing Valves 37
Compressor Checks 38
Heating Element and Limit Switches 40
Heater Assembly Removal 41
Drain Pan Valve 42
Check Evaporator Blower Motor and Control Board 43
Replace Evaporator Blower Motor 44
Outdoor Fan Check 45
Outdoor Fan Replacement 46
R-410A SEALED SYSTEM REPAIR 48
Refrigerant Charging 49
Sealed System Method of Charging/ Repairs 50
Undercharged Refrigerant Systems 51
An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. 51
Overcharged Refrigerant Systems 52
Restricted Refrigerant System 53
Compressor Replacement 54
Compressor Replacement -Special Procedure in Case of Compressor Burnout 55
Replace The Reversing Valve 56
WIRING DIAGRAMS 58
208/230V 2.5kW 58
208/230V 3.4 kW 59
208/230V 5kW 60
208/230V 7.5kW 61
208/230V 10kW 62
265V 2.5kW 63
265V 3.4kW 64
TABLE OF CONTENTS
To Next Page
Loading...
Need help?
General