Mitsubishi Electric MUZ-GE80VA-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-GE80VA-a1 Specifications

General

Brand	Mitsubishi Electric
Model	MUZ-GE80VA-a1
Category	Air Conditioner
Language	English

Summary

Technical Changes in Outdoor Unit Models

Unit Specifications

Electrical and Performance Specifications

Comprehensive table detailing electrical data, airflow, sound levels, and other specifications.

Wiring Diagram

Electrical Wiring Schematics

Detailed wiring diagrams for specific outdoor unit models, showing component connections.

Refrigerant System Diagram

Refrigerant Circuitry and Components

Performance Curves

Capacity and Input Curves

Heating Operation Performance Data

Actuator Control

Service Functions

Defrost Finish Temperature Adjustment

Pre-Heat Control Configuration

Troubleshooting

Troubleshooting Safety Precautions

Essential safety guidelines and checks to perform before starting troubleshooting.

Failure Mode Recall Function Guide

Procedure for recalling and interpreting memorized failure modes for diagnosis.

Troubleshooting Check Table

Comprehensive table linking symptoms, LED codes, conditions, and remedies.

Main Part Trouble Diagnosis Criteria

Specific criteria and methods for testing key components like thermistors and motors.

Troubleshooting Flowcharts

Step-by-step diagnostic flowcharts for various components and systems.

Inverter P.C. Board Test Points and Voltages

Diagrams showing test points and expected voltages on the inverter P.C. board.

Disassembly Instructions

MUZ-GE25VA to MUZ-GE42VAD Disassembly Steps

MUZ-GE50VA Series Disassembly Steps

MUZ-GE60VA to MUZ-GE80VAD Disassembly Steps