Mitsubishi Electric MUZ-GE42VAD-a1 User Manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS ····················· 4
3. SPECIFICATION ················································ 6
4. NOISE CRITERIA CURVES ·····························11
5. OUTLINES AND DIMENSIONS ······················ 13
6. WIRING DIAGRAM ·········································· 15
7. REFRIGERANT SYSTEM DIAGRAM ············· 27
8. PERFORMANCE CURVES ····························· 31
9. ACTUATOR CONTROL ··································· 63
10. SERVICE FUNCTIONS ···································· 64
11. TROUBLESHOOTING ····································· 65
12. DISASSEMBLY INSTRUCTIONS ···················· 86
SPLIT-TYPE AIR CONDITIONERS
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
HFC
utilized
R410A
OUTDOOR UNIT
Indoor unit service manual
MSZ-GE•VA Series (OBH531)
PARTS CATALOG (OBB532)
MUZ-GE25VA
MUZ-GE25VAD
MUZ-GE33VA
MUZ-GE35VA
MUZ-GE35VA2
MUZ-GE35VAD
MUZ-GE42VA
MUZ-GE42VAD
Models
MUZ-GE25VA
-
A1
MUZ-GE50VA
-
A1
MUZ-GE25VA
-
A2
MUZ-GE50VA2
-
A1
MUZ-GE25VAD
-
A1
MUZ-GE50VAD
-
A1
MUZ-GE33VA
-
A1
MUZ-GE60VA
-
A1
MUZ-GE35VA
-
A1
MUZ-GE60VAD
-
A1
MUZ-GE35VA2
-
A1
MUZ-GE71VA
-
A1
MUZ-GE35VA2
-
A2
MUZ-GE71VAD
-
A1
MUZ-GE35VAD
-
A1
MUZ-GE80VA
-
A1
MUZ-GE42VA
-
A1
MUZ-GE80VA2
-
A1
MUZ-GE42VAD
-
A1
MUZ-GE80VAD
-
A1
No. OBH532
REVISED EDITION-E
Please void OBH532 REVISED EDITION-D.
Revision E:
• MUZ-GE25VAD-
A1
, MUZ-GE35VAD-
A1
, MUZ-GE42VAD-
A1
,
MUZ-GE50VAD-
A1
, MUZ-GE60VAD-
A1
, MUZ-GE71VAD-
A1
and MUZ-GE80VAD-
A1
have been added.

Mitsubishi Electric MUZ-GE42VAD-a1 Specifications

General

Brand	Mitsubishi Electric
Model	MUZ-GE42VAD-a1
Category	Air Conditioner
Language	English

Summary

Technical Changes Overview

Product Specifications

Main Electric Parts Specifications

Wiring Diagrams

Refrigerant System Diagrams

Performance Curves

Capacity and Input Curves

Graphs showing capacity and input based on indoor/outdoor temperatures and model.

Capacity and Input Correction by Compressor Frequency

Correction factors for capacity and input based on compressor frequency.

Test Run Operation Procedure

Outdoor Low Pressure and Outdoor Unit Current

Service Functions

Defrost Setting Adjustment

Pre-Heat Control Settings

Troubleshooting Guide

Failure Mode Recall Function

Troubleshooting Check Table

Table correlating LED indications and symptoms with abnormal conditions and remedies.

Main Parts Trouble Criteria

Methods and criteria for checking the condition of main components like thermistors and compressor.

Troubleshooting Flowcharts

Flowcharts for diagnosing issues with the inverter, compressor, and related components.

Test Point Diagram and Voltage

Diagrams showing test points on the inverter P.C. board and associated voltage values.

Disassembly Instructions