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Mitsubishi Electric PUZ-WM112VAA User Manual

Mitsubishi Electric PUZ-WM112VAA
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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-WM112VAA Specifications

General IconGeneral
BrandMitsubishi Electric
ModelPUZ-WM112VAA
CategoryHeat Pump
LanguageEnglish

Summary

Safety Precautions

R32 Refrigerant Cautions

Important safety guidelines and precautions when working with R32 refrigerant.

Service Warnings

Provides critical warnings and cautions for technicians performing service on the unit.

Service Cautions

Details specific cautions to be observed during service operations.

Refrigerant Charging Procedures

Guidelines for safely charging refrigerant directly from a cylinder into the system.

Detailed R32 Unit Cautions

Further detailed cautions for units utilizing R32 refrigerant, covering various aspects of safe operation.

Specifications

Technical Specifications

Detailed technical specifications for various outdoor unit models, including power, compressor, and dimensions.

Wiring Diagram

Outdoor Unit Wiring Diagram

Schematic diagram illustrating the electrical connections for the outdoor unit.

Wiring Specifications

Field Electrical Wiring Specifications

Details on power wiring specifications, including circuit ratings and wire sizes for various models.

Refrigerant System Diagram

Outdoor Unit Refrigerant Circuit Diagram

Diagram showing the refrigerant flow and components within the outdoor unit for heating and cooling.

Troubleshooting

Specific Error Code Troubleshooting

Detailed troubleshooting for specific error codes (U1-U9, UL-E4, E1-Ed) based on detected symptoms.

Monitoring Operation Data

Disassembly Procedure

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