Table Of Contents - Mitsubishi Electric PUZ-WM50VHA Service Manual

Table of Contents

Table Of Contents1
Reference Manual2
Safety Precautions3
Meaning Of Symbols Displayed On The Unit3
Cautions For Service4
Refrigerant Charge4
Cautions For Unit Using R32 Refrigerant5
Service Tools7
Precautions When Reusing Existing Refrigerant Tools8
Precautoins For Salt Type "-Bs" Mode8
Choosing The Outdoor Unit Installation Location8
Minimum Installation Area9
Specifications10
Available Range (Water Flow Rate, Return Water Temperature)11
Noise Criterion Curves12
Data12
Outlines And Dimensions13
Wiring Diagram15
Wiring Specifications18
Field Electrical Wiring (Power Wiring Specifications)18
Refrigerant System Diagram19
Troubleshooting22
Self-Diagnosis Action Table23
Troubleshooting Of Problems32
"PLEASE WAIT" Is Kept Being Displayed on the Remote Controller34
Nothing Is Displayed On The Remote Controller35
How To Check The Parts38
Check Method Of Dc Fan Motor39
Thermistor Feature Chart40
Linear Expansion Valve41
How To Detach The Coil42
How To Attach The Coil42
Test Point Diagram43
Function Of Swithes, Connectors And Jumpers49
Display Function Of Inspection For Outdoor Unit50
Outdoor Unit Operation Monitor Function52
Monitoring The Operation Data By The Remote Controller60
Request Code List60
Detail Contents In Request Code63
Disassembly Procedure66
Removing The Service, Top And Cover Panels66
Removing The Fan Motor66
Removing The Electrical Parts Box66
Removing The Thermistor67
Removing The 4-Way Valve Coil (21S4) Linear Expansion Valve Coil68
Removing The 4-Way Valve68
Removing Linear Expansion Valve68
Removing The High Pressure Switch69
Removing The Pressure Sensor69
Removing The Compressor (Mc)69
Removing The Receiver70
Removing The Plate Heat Exchanger70
Removing The Pressure Relief Valve And The Gasket70
Disassembling The Electrical Parts Box71
Removing The Service Panel And Top Panel72
Removing The 4-Way Valve Coil And Lead Wire For High Pressure Switch76
Removing The Reactor85