Mitsubishi Electric PUZ-SWM120YAA.TR User Manual

SERVICE MANUAL
No. OCH809
REVISED EDITION-A
R32
December 2023
PARTS CATALOG (OCB809)
CONTENTS
1. REFERENCE MANUAL ································ 2
2. SAFETY PRECAUTION ······························· 3
3. SPECIFICATIONS ······································ 11
4. DATA ··························································· 13
5. OUTLINES AND DIMENSIONS·················· 16
6. WIRING DIAGRAM ····································· 17
7. WIRING SPECIFICATIONS ························ 21
8. REFRIGERANT SYSTEM DIAGRAM ········ 22
9. TROUBLESHOOTING ································ 24
10. MONITORING THE OPERATION DATA
BY THE REMOTE CONTROLLER ············· 68
11. DISASSEMBLY PROCEDURE ··················· 73
Note:
• This manual describes
service data of the outdoor
units only.
AIR TO WATER HEAT PUMP UNITS
OUTDOOR UNIT
[Model Name]
PUZ-SWM60VAA
PUZ-SWM80VAA
PUZ-SWM100VAA
PUZ-SWM120VAA
PUZ-SWM140VAA
PUZ-SWM80YAA
PUZ-SWM100YAA
PUZ-SWM120YAA
PUZ-SWM140YAA
PUZ-SHWM60VAA
PUZ-SHWM80VAA
PUZ-SHWM100VAA
PUZ-SHWM120VAA
PUZ-SHWM140VAA
PUZ-SHWM80YAA
PUZ-SHWM100YAA
PUZ-SHWM120YAA
PUZ-SHWM140YAA
[Service Ref.]
PUZ-SWM60VAA.TR
PUZ-SWM80VAA.TR
PUZ-SWM100VAA.TR
PUZ-SWM120VAA.TR
PUZ-SWM140VAA.TR
PUZ-SWM80YAA.TR
PUZ-SWM100YAA.TR
PUZ-SWM120YAA.TR
PUZ-SWM140YAA.TR
PUZ-SHWM60VAA.TR
PUZ-SHWM80VAA.TR
PUZ-SHWM100VAA.TR
PUZ-SHWM120VAA.TR
PUZ-SHWM140VAA.TR
PUZ-SHWM80YAA.TR
PUZ-SHWM100YAA.TR
PUZ-SHWM120YAA.TR
PUZ-SHWM140YAA.TR
Revision:
• Added connectable indoor
units in REVISED
EDITION-A.
OCH809 is void.

Mitsubishi Electric PUZ-SWM120YAA.TR Specifications

General

Model	PUZ-SWM120YAA.TR
Category	Heat Pump
Cooling Capacity (kW)	12.0
Heating Capacity (kW)	14.0
Refrigerant	R410A
Power Supply	3 Phase, 400V, 50Hz

Summary

Reference Manual

Safety and Precautions

General Service Safety Guidelines

Essential safety rules and precautions to observe before and during service.

Refrigerant Handling and System Cautions

Specific safety advice for handling R32 refrigerant and related system operations.

Specifications

Unit Data

Refilling Refrigerant Charge (R32)

Compressor Technical Data

Wiring Diagrams

Troubleshooting and Error Diagnosis

General Troubleshooting Summary

Overview of check codes, self-diagnosis, and actions for recurring or non-recurring issues.

Specific Problem Troubleshooting

Detailed troubleshooting steps for various phenomena and system issues.

Operation Data Monitoring

Request Code List

Detailed Request Code Contents