Mitsubishi Electric MXZ-2A30VA - E1 User Manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 8
3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ························ 10
4. INDOOR UNITS COMBINATION ···················· 14
5. SPECIFICATION ·············································· 61
6. NOISE CRITERIA CURVES ···························· 66
7. OUTLINES AND DIMENSIONS ······················ 68
8. WIRING DIAGRAM ·········································· 75
9. REFRIGERANT SYSTEM DIAGRAM ············· 87
10. PERFORMANCE CURVES ····························· 97
11. ACTUATOR CONTROL ··································115
12. SERVICE FUNCTIONS ···································116
13. TROUBLESHOOTING ··································· 120
14. DISASSEMBLY INSTRUCTIONS ·················· 145
15. PARTS LIST ··················································· 160
16. RoHS PARTS LIST ········································ 172
17. OPTIONAL PARTS ······················ BACK COVER
Models
MXZ-2A30VA -
E1
MXZ-4A71VA -
E2
MXZ-2A30VA -
E2
MXZ-4A71VA -
E3
MXZ-2A40VA -
E1
MXZ-4A71VA -
E4
MXZ-2A40VA -
E2
MXZ-4A71VA -
E5
MXZ-2A52VA -
E1
MXZ-4A71VA -
E6
MXZ-2A52VA -
E2
MXZ-4A71VA -
E7
MXZ-3A54VA -
E1
MXZ-4A80VA -
E1
MXZ-3A54VA -
E2
MXZ-4A80VA -
E2
MXZ-3A54VA -
E3
MXZ-5A100VA -
E1
MXZ-3A54VA -
E4
MXZ-3A54VA -
E5
MXZ-3A54VA -
E6
MXZ-3A54VA -
E7
MXZ-4A71VA -
E1
No. OB377
REVISED EDITION-H
HFC
utilized
R410A
SPLIT-TYPE AIR CONDITIONERS
MXZ-4A80VA-
E1
Please void OB377 REVISED EDITION-G.
OUTDOOR UNIT
Revision H:
• Indoor units combinations for 42 class
have been added.
•
MXZ-3A54VA-
E7
and MXZ-4A71VA-
E7
have been added.
NOTE:
• RoHS compliant products have <G> mark on the spec
name plate.
For servicing of RoHS compliant products, refer to the
RoHS Parts List.
Indoor unit service manual
MSZ-FA•VA Series (OB371)
MSZ-GA•VA Series (OB378, OB388)
MSZ-CB•VA Series (OB441)
MSZ-GC•VA Series (OBH468)
MSZ-GE•VA Series (OBH515)
MSZ-FD•VA Series (OBH488)

Mitsubishi Electric MXZ-2A30VA - E1 Specifications

General

Category	Air Conditioner
Model	MXZ-2A30VA - E1
Power Supply	220-240 V, 50 Hz
Number of Connectable Indoor Units	2
Operating Temperature Range (Heating)	-15 to +24 °C

Summary

Technical Changes

Specifications

Noise Criteria Curves

Outlines and Dimensions

Wiring Diagrams

Refrigerant System Diagram

Performance Curves

Service Functions

Locking Operation Mode

Function to lock the outdoor unit operation mode to COOL/DRY or HEAT only.

Auto Line Correcting

Troubleshooting

Cautions on Troubleshooting

Important points to check and precautions before and during troubleshooting.

Failure Mode Recall Function

Recalls memorized abnormal conditions for diagnosis when issues don't recur.

Instruction of Troubleshooting

Troubleshooting Check Table

Lists symptoms, LED indications, conditions, and correspondences for troubleshooting.

Trouble Criterion of Main Parts

Provides test methods and criteria for diagnosing main components.

Troubleshooting Flow

Step-by-step diagnostic flowcharts for common operational issues.

Test Point Diagram and Voltage

Disassembly Instructions

Disassembly for MXZ-2A Models

Step-by-step instructions for disassembling MXZ-2A series outdoor units.

Disassembly for MXZ-3A54VA / MXZ-4A71VA

Step-by-step instructions for disassembling MXZ-3A54VA and MXZ-4A71VA units.

Disassembly for MXZ-3A54VA / MXZ-4A71VA (Functional/Electrical)

Instructions for removing functional and electrical parts of specific models.

Disassembly for MXZ-4A80VA

Disassembly for MXZ-4A80VA / MXZ-5A100VA