Mitsubishi Electric MSZ-EF18VG Service Manual

1
INDOOR UNIT
No. OBH831
REVISED EDITION-A
Models
MSZ-EF18VGW/B/S
-
E1
,
E2
MSZ-EF18VGKW/B/S
-
E1
MSZ-EF22VGW/B/S
-
E1
,
ET1
,
E2
,
ET2
MSZ-EF22VGKW/B/S
-
E1
,
ET1
MSZ-EF25VGW/B/S
-
E1
,
ET1
,
E2
,
ET2
MSZ-EF25VGKW/B/S
-
E1
,
ET1
MSZ-EF35VGW/B/S
-
E1
,
ET1
,
E2
,
ET2
MSZ-EF35VGKW/B/S
-
E1
,
ET1
MSZ-EF42VGW/B/S
-
E1
,
ET1
,
E2
,
ET2
MSZ-EF42VGKW/B/S
-
E1
,
ET1
MSZ-EF50VGW/B/S
-
E1
,
ET1
,
E2
,
ET2
MSZ-EF50VGKW/B/S
-
E1
,
ET1
MSZ-EF∙VGW/VGKW
MSZ-EF∙VGB/VGKB
MSZ-EF∙VGS/VGKS
PARTS CATALOG (OBB831)
CONTENTS
1. TECHNICAL CHANGES ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 3
2. PART NAMES AND FUNCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 4
3. SPECIFICATION ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 5
4. NOISE CRITERIA CURVES ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 7
5. OUTLINES AND DIMENSIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 9
6. WIRING DIAGRAM ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 10
7. REFRIGERANT SYSTEM DIAGRAM ∙∙∙∙∙∙∙∙∙∙∙∙∙ 15
8. SERVICE FUNCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 16
9. MICROPROCESSOR CONTROL ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 19
10. TROUBLESHOOTING ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 27
11. DISASSEMBLY INSTRUCTIONS ∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ 44
SERVICE MANUAL
Outdoor unit service manual
MUZ-EF∙VG/H Series (OBH832)
MXZ-F∙VF Series(OBH790)
OBH831 is void.
Revision A:
• MSZ-EF18/22/25/35/42/50VGW/B/S -
E2
,
MSZ-EF22/25/35/42/50VGW/B/S -
ET2
,
MSZ-EF18/22/25/35/42/50VGKW/B/S -
E1
and
MSZ-EF22/25/35/42/50VGKW/B/S -
ET1
have been added.

Mitsubishi Electric MSZ-EF18VG Specifications

General

Cooling Capacity	5.0 kW
Seasonal Energy Efficiency Ratio (SEER)	8.5
Power Supply	220-240 V, 50 Hz
Outdoor Unit Dimensions (HxWxD)	550x800x285 mm
Energy Efficiency Class Cooling	A+++
Energy Efficiency Class Heating	A++
Refrigerant	R32
Outdoor Unit Noise Level	49 dB(A)
Outdoor Unit Dimensions (WxHxD)	800x550x285 mm
Type	Split System
Sound Level (Cooling)	21 dB(A)
Sound Level (Heating)	22 dB (Low)
Indoor Unit Noise Level (Low)	21 dB