Mitsubishi Electric MSZ-EF18VEW User Manual

CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS ····················· 4
3. SPECIFICATION ················································ 6
4. NOISE CRITERIA CURVES ······························ 8
5. OUTLINES AND DIMENSIONS ······················ 10
6. WIRING DIAGRAM ·········································· 12
7. REFRIGERANT SYSTEM DIAGRAM ············· 13
8. SERVICE FUNCTIONS ··································· 14
9. MICROPROCESSOR CONTROL ··················· 16
10. TROUBLESHOOTING ····································· 24
11. DISASSEMBLY INSTRUCTIONS ···················· 38
SPLIT-TYPE AIR CONDITIONERS
SERVICE MANUAL
No. OBH589
REVISED EDITION-D
INDOOR UNIT
PARTS CATALOG (OBB589)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
Models
MSZ-EF18VEW
-
E1
MSZ-EF22VEW
-
E1
MSZ-EF25VEW
-
E1
MSZ-EF35VEW
-
E1
MSZ-EF42VEW
-
E1
MSZ-EF50VEW
-
E1
MSZ-EF18VEB
-
E1
MSZ-EF22VEB
-
E1
MSZ-EF25VEB
-
E1
MSZ-EF35VEB
-
E1
MSZ-EF42VEB
-
E1
MSZ-EF50VEB
-
E1
MSZ-EF18VES
-
E1
MSZ-EF22VES
-
E1
MSZ-EF25VES
-
E1
MSZ-EF35VES
-
E1
MSZ-EF42VES
-
E1
MSZ-EF50VES
-
E1
MSZ-EF18VE2W
-
E1
,
ER1
MSZ-EF22VE2W
-
E1
,
ER1
MSZ-EF25VE2W
-
E1
,
ER1
MSZ-EF35VE2W
-
E1
,
ER1
MSZ-EF42VE2W
-
E1
,
ER1
MSZ-EF50VE2W
-
E1
,
ER1
MSZ-EF18VE2B
-
E1
,
ER1
MSZ-EF22VE2B
-
E1
,
ER1
MSZ-EF25VE2B
-
E1
,
ER1
MSZ-EF35VE2B
-
E1
,
ER1
MSZ-EF42VE2B
-
E1
,
ER1
MSZ-EF50VE2B
-
E1
,
ER1
MSZ-EF18VE2S
-
E1
,
ER1
MSZ-EF22VE2S
-
E1
,
ER1
MSZ-EF25VE2S
-
E1
,
ER1
MSZ-EF35VE2S
-
E1
,
ER1
MSZ-EF42VE2S
-
E1
,
ER1
MSZ-EF50VE2S
-
E1
,
ER1
MXZ-D·VA Series (OBH626)
MXZ-8B Series (OCH480)
Please void OBH589 REVISED EDITION-C.
Revision D:
• The descriptions of the dimensions for MSZ-
EF18/22/25/35/42/50VE2W -
E1
,
ER1
, MSZ-
EF18/22/25/35/42/50VE2B -
E1
,
ER1
and
MSZ-EF18/22/25/35/42/50VE2S -
E1
,
ER1
have been modified.
Outdoor unit service manual
MUZ-EF·VE(H) Series (OBH590)
MXZ-C·VA Series (OB584)
MSZ-EF·VEW
MSZ-EF·VEB
MSZ-EF·VES

Mitsubishi Electric MSZ-EF18VEW Specifications

General

Cooling Capacity	1.8 kW
Power Supply	220-240 V, 50 Hz
Outdoor Unit Dimensions (H x W x D)	550 x 800 x 285 mm
Refrigerant	R32
Energy Efficiency Class Cooling	A+++
Energy Efficiency Class Heating	A+
Annual Energy Consumption (Cooling)	150 kWh
Type	Wall-mounted
Seasonal Energy Efficiency Ratio (SEER)	6.1
Indoor Unit Dimensions (H x W x D)	295 x 800 x 223 mm
Noise Level (Indoor Unit)	21-45 dB(A)

Summary

Unit Components and Specifications

Detailed Model Specifications

Technical specifications for various indoor unit models including electrical and performance data.

Technical Diagrams and Piping Data

Wiring Diagrams and Symbols

Electrical schematics and component symbol definitions for indoor units.

Refrigerant System Diagram

Schematic illustrating the refrigerant flow and system components for operational understanding.

Troubleshooting and Diagnostics

Troubleshooting Cautions and Procedures

Failure Mode Recall and Error Tables

Function to recall past failures and tables listing error codes and symptoms.

Component-Specific Troubleshooting

Detailed troubleshooting flows for fan motors, PCBs, wiring, and other components.

Test Points and Voltage Measurements

Diagrams and data for checking voltages and resistance at critical test points on electronic boards.

Disassembly and Component Repair