Mitsubishi Electric MUZ-GE15NA2 User Manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS ····················· 4
3. SPECIFICATION ················································ 6
4. OUTLINES AND DIMENSIONS ······················ 10
5. WIRING DIAGRAM ·········································· 13
6. REFRIGERANT SYSTEM DIAGRAM ············· 25
7. DATA ································································ 28
8. ACTUATOR CONTROL ··································· 42
9. SERVICE FUNCTIONS ··································· 43
10. TROUBLESHOOTING ····································· 44
11. DISASSEMBLY INSTRUCTIONS ···················· 64
Models
SPLIT-TYPE AIR CONDITIONERS
OUTDOOR UNIT
Indoor unit service manual
MSZ-GE•NA MSY-GE•NA Series (OBH548)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
HFC
utilized
R410A
No. OBH549
REVISED EDITION-F
PARTS CATALOG (OBB549)
Please void OBH549 REVISED EDITION-E.
MUZ-GE09NA/NA2
MUZ-GE12NA/NA2
MUZ-GE15NA, -
1
/NA2
MUZ-GE09NA
MUZ-GE09NA2
MUZ-GE12NA
MUZ-GE12NA2
MUZ-GE15NA,
-
1
MUZ-GE15NA2
MUZ-GE18NA,
-
1
MUZ-GE24NA
Revision F:
• MUZ-GE09/12/15NA2, MUZ-GE09/12/15NAH2
and MUY-GE09/12/15NA2 have been added.
MUZ-GE09NAH
MUZ-GE09NAH2
MUZ-GE12NAH
MUZ-GE12NAH2
MUZ-GE15NAH
MUZ-GE15NAH2
MUZ-GE18NAH
MUY-GE09NA/NA2
MUY-GE12NA/NA2
MUY-GE15NA, -
1
/NA2
TM
MUY-GE18NA,
-
1
MUY-GE24NA
MUY-GE09NA
MUY-GE09NA2
MUY-GE12NA
MUY-GE12NA2
MUY-GE15NA,
-
1
MUY-GE15NA2
MUZ-GE09NAH/NAH2
MUZ-GE12NAH/NAH2
MUZ-GE15NAH/NAH2

Mitsubishi Electric MUZ-GE15NA2 Specifications

General

Brand	Mitsubishi Electric
Model	MUZ-GE15NA2
Category	Air Conditioner
Language	English

Summary

Specifications

Wiring Diagrams

Refrigerant System Diagrams

Data

Performance Data

Actuator Control

Troubleshooting

Cautions on Troubleshooting

Provides essential safety precautions before starting troubleshooting.

Failure Mode Recall Function

Explains how to recall and interpret failure mode data.

Troubleshooting Check Table

Lists symptoms, LED indications, conditions, and remedies for common issues.

Trouble Criterion of Main Parts

Provides resistance and voltage criteria for diagnosing main components.

Troubleshooting Flow

Step-by-step diagnostic flows for common issues like compressor problems.

Test Point Diagram and Voltage

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

Disassembly Instructions

MUZ-GE09NA/MUZ-GE12NA/MUZ-GE15NA Models

MUZ-GE18NA Models

MUZ-GE24NA Models