Mitsubishi Electric MUZ-EF50VE-E2 - User Manual

NOTE:
RoHS compliant products have <G> mark on the spec name plate.
OUTDOOR UNIT
No. OBH590
REVISED EDITION-G
HFC
utilized
R410A
SERVICE MANUAL
Indoor unit service manual
MSZ-EF•VE Series (OBH589)
PARTS CATALOG (OBB590)
MUZ-EF25VE MUZ-EF25VEH
MUZ-EF35VE MUZ-EF35VEH
MUZ-EF42VE
Please void OBH590 REVISED EDITION-F.
Models
MUZ-EF25VE
-
E1
,
E2
,
E3
,
E4
,
E5
,
ER3
,
ER4
,
ER5
,
ET3
,
ET4
,
ET5
MUZ-EF25VEH
-
E1
,
E2
,
E3
,
E4
,
ER2
,
ER3
,
ET2
,
ET3
MUZ-EF35VE
-
E1
,
E2
,
E3
,
E4
,
E5
,
ER3
,
ER4
,
ER5
,
ET3
,
ET4
,
ET5
MUZ-EF35VEH
-
E1
,
E2
,
E3
,
E4
,
ER2
,
ER3
,
ET2
,
ET3
MUZ-EF42VE
-
E1
,
E2
,
E3
,
E4
,
E5
,
ER3
,
ER4
,
ER5
,
ET3
,
ET4
,
ET5
MUZ-EF50VE
-
E1
,
E2
,
E3
,
ER2
,
ER3
,
ET2
,
ET3
Revision G:
• MUZ-EF25/35/42VE -
E5
,
ER5
,
ET5
, MUZ-EF50VE -
E3
,
ER3
,
ET3
and MUZ-EF25/35VEH -
E4
have been
added.
CONTENTS
1. TECHNICAL CHANGES ··································· 2
2. PART NAMES AND FUNCTIONS ····················· 5
3. SPECIFICATION ················································ 6
4. NOISE CRITERIA CURVES ······························ 8
5. OUTLINES AND DIMENSIONS ························ 9
6. WIRING DIAGRAM ·········································· 10
7. REFRIGERANT SYSTEM DIAGRAM ············· 15
8. PERFORMANCE CURVES ····························· 17
9. ACTUATOR CONTROL ··································· 31
10. SERVICE FUNCTIONS ···································· 32
11. TROUBLESHOOTING ····································· 32
12. DISASSEMBLY INSTRUCTIONS ···················· 51

Summary

Technical Changes

Model and Component Updates

Details changes in models and components like PC boards and fan motors.

Outlines and Dimensions

Wiring Diagram

Refrigerant System Diagram

Performance Curves

Cooling Performance Characteristics

Service Functions

Defrost and Pre-Heat Control Settings

Troubleshooting

Troubleshooting Precautions and Cautions

Important safety guidelines and preliminary checks before troubleshooting.

Failure Mode Recall Functionality

Outdoor Unit Failure Mode Diagnosis

Troubleshooting Check Tables

Diagnostic tables correlating LED indications with specific faults.

Main Part Troubleshooting Criteria

Resistance and voltage criteria for checking major components.

Comprehensive Troubleshooting Flows

Detailed diagnostic flowcharts for various operational issues.

Test Point Diagrams and Voltage Measurements

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

Disassembly Instructions

Inverter Assembly and Component Removal

Mitsubishi Electric MUZ-EF50VE-E2 Specifications

General

Category	Air Conditioner
Type	Split System
Cooling Capacity	5.0 kW
Heating Capacity	5.8 kW
Energy Efficiency Rating (Cooling)	A++
Energy Efficiency Rating (Heating)	A+
Refrigerant	R32
Power Supply	220-240V, 50Hz
Noise Level (Outdoor)	50 dB
Dimensions (Outdoor Unit)	800 x 285 x 550 mm