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Mitsubishi Electric PUZ-WM60VAA User Manual

Mitsubishi Electric PUZ-WM60VAA
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SERVICE MANUAL
No. OCH727
R32
March 2020
PARTS CATALOG (OCB727)
<Outdoor unit>
[Model Name]
PUZ-WM50VHA
PUZ-WM60VAA
PUZ-WM85VAA
PUZ-WM85YAA
PUZ-WM112VAA
PUZ-WM112YAA
Salt proof model
PUZ-WM50VHA-BS
PUZ-WM60VAA-BS
PUZ-WM85VAA-BS
PUZ-WM85YAA-BS
PUZ-WM112VAA-BS
PUZ-WM112YAA-BS
CONTENTS
1. REFERENCE MANUAL ································ 2
2. SAFETY PRECAUTION ······························· 3
3. SPECIFICATIONS ······································ 10
4. DATA ··························································· 12
5. OUTLINES AND DIMENSIONS·················· 13
6. WIRING DIAGRAM ····································· 15
7. WIRING SPECIFICATIONS ························ 18
8. REFRIGERANT SYSTEM DIAGRAM ········ 19
9. TROUBLESHOOTING ································ 22
10.
MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER
···· 60
11. DISASSEMBLY PROCEDURE ··················· 66
Note:
• This manual describes
service data of the outdoor
units only.
AIR TO WATER HEAT PUMP UNITS
[Service Ref.]
PUZ-WM50VHA.UK
PUZ-WM60VAA.UK
PUZ-WM85VAA.UK
PUZ-WM85YAA.UK
PUZ-WM112VAA.UK
PUZ-WM112YAA.UK
PUZ-WM50VHA-BS.UK
PUZ-WM60VAA-BS.UK
PUZ-WM85VAA-BS.UK
PUZ-WM85YAA-BS.UK
PUZ-WM112VAA-BS.UK
PUZ-WM112YAA-BS.UK
PUZ-WM50VHA.UK

Table of Contents

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Mitsubishi Electric PUZ-WM60VAA Specifications

General IconGeneral
BrandMitsubishi Electric
ModelPUZ-WM60VAA
CategoryHeat Pump
LanguageEnglish

Summary

Reference Manual

Safety Precautions

General Safety Rules

Essential safety practices to always observe before operation.

R32 Refrigerant Cautions

Specific safety guidelines for using R32 refrigerant.

Service Warnings

Service Cautions

Refrigerant Charging

R32 Unit Usage Precautions

Servicing Information

General information and checks required for servicing.

Sealed Component Repairs

Procedures and checks for repairing sealed components.

Flammable Refrigerant Detection

Methods and precautions for detecting flammable refrigerants.

Leak Detection Methods

Procedures for using electronic leak detectors.

Refrigerant Removal and Evacuation

Procedures for removing and evacuating refrigerant.

Charging Procedures

Specific requirements for charging refrigerant.

Decommissioning Procedures

Essential steps before decommissioning the equipment.

Refrigerant Recovery

Guidelines for safely removing and recovering refrigerant.

Service Tools for R32

Outdoor Unit Installation Location

Minimum Installation Area Requirements

Specifications

Wiring Diagram

Wiring Diagram (PUZ-WM50VHA Series)

Electrical wiring schematic for PUZ-WM50VHA models.

Wiring Diagrams (PUZ-WM60/85/112VAA Series)

Electrical wiring schematics for PUZ-WM60/85/112VAA models.

Wiring Diagrams (PUZ-WM85/112YAA Series)

Electrical wiring schematics for PUZ-WM85/112YAA models.

Wiring Specifications

Field Electrical Wiring

Power wiring specifications for different outdoor unit models.

Refrigerant System Diagram

Refrigerant Diagram (PUZ-WM50VHA Series)

Refrigerant circuit diagram for PUZ-WM50VHA models.

Refrigerant Diagrams (PUZ-WM60/85VAA Series)

Refrigerant circuit diagrams for PUZ-WM60/85VAA models.

Refrigerant Diagrams (PUZ-WM112VAA/YAA Series)

Refrigerant circuit diagrams for PUZ-WM112VAA/YAA models.

Troubleshooting

Self-Diagnosis Action Table

Table of self-diagnosis codes and recommended actions.

Troubleshooting Common Problems

Guides for diagnosing and solving common operational issues.

Part Checking Procedures

Component Checking Procedures

DC Fan Motor and Controller Board Checks

Procedure for checking DC fan motor and controller board.

Linear Expansion Valve Operation

Attaching and Detaching LEV Coil

Test Point Diagrams

Switches, Connectors, and Jumpers

Disassembly Procedure

13. Removing the compressor (MC)

Steps for removing the compressor.

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