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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
INDOOR UNIT
SERVICE MANUAL
Wireless type
Models
No. OB440
MSH-CB50VB -
MSH-CB50VB
E1
Outdoor unit service manual
MUH-GA·VB Series (OB368)
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················2
3. SPECIFICATION·················································4
4. NOISE CRITERIA CURVES·······························4
5. OUTLINES AND DIMENSIONS·························5
6. WIRING DIAGRAM ············································6
7. REFRIGERANT SYSTEM DIAGRAM················6
8. SERVICE FUNCTIONS ······································7
9. TROUBLESHOOTING·········································9
10. DISASSEMBLY INSTRUCTIONS·····················17
11. PARTS LIST······················································19
12. OPTIONAL PARTS ···········································21
NOTE:
This service manual describes technical data of the indoor unit.
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11
MSH-CB50VB -
E1
E02 527 970
E02 685 234
E02 888 000
E02 408 142
E02 685 067
E02 888 010
E02 534 100
E02 685 975
E02 A62 007
INSTALLATION PLATE
BOX
FRONT PANEL ASSEMBLY
CATCH
SCREW CAP
GRILLE
CATECHIN AIR FIL TER
CORNER BOX RIGHT
LAMP PANEL
Symbol
in Wiring
Diagram
Q'ty/unit
Including No.4,5,6
4PCS/ SET
3PCS/ SET
RemarksPart No.
NO.
Part Name
1
2
3
4
5
6
7
8
9
1
1
1
4
3
1
2
1
1
E02 891 620
E02 179 667
E02 151 667
INDOOR HEAT EXCHANGER
UNION (GAS)
UNION (LIQUID)
{12.7
{6.35
10
11
12
1
1
1
PARTS LIST
MSH-GA50VB
11-1. INDOOR UNIT STRUCTURAL PARTS
1
2
3
4
5
6
7
11-1. INDOOR UNIT STRUCTURAL PARTS
Part number that is circled is not shown in the illustration.
11-2. INDOOR UNIT HEAT EXCHANGER
10
8
Optional
parts
(See 12.)
11
12
11-2. INDOOR UNIT HEAT EXCHANGER
19
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E02 527 302
E02 408 509
E02 001 504
E02 408 702
E02 996 235
E02 685 040
E02 685 041
E02 A49 382
E02 817 385
E02 527 034
E02 817 300
E02 448 303
E02 408 303
E02 817 333
E02 528 329
E02 527 468
E02 891 452
E02 527 308
E02 819 375
E02 408 307
E02 528 034
E02 529 034
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
LINE FLOW FAN
BEARING MOUNT
SLEEVE BEARING
DRAIN HOSE
NOZZLE ASSEMBLY
VANE UPPER
VANE LOWER
FUSE
VARISTOR
VANE CRANK SET
INDOOR FAN MOTOR ASSEMBLY
VANE MOTOR (VERTICAL)
VANE MOTOR (HORIZONTAL)
MOTOR BAND
DISPLAY P.C. BOARD
RECEIVER P.C. BOARD
ELECTRONIC CONTROL P.C. BOARD
ROOM TEMPERATURE THERMISTOR
TERMINAL BLOCK
INDOOR COIL THERMISTOR
VANE MOTOR SUPPORT SET(RIGHT)
VANE MOTOR SUPPORT SET(LEFT)
Symbol
in Wiring
Diagram
Q'ty/unit
T3.15AL250V
RIGHT & LEFT
UP & DOWN
RemarksPart No.
NO.
Part Name
F11
NR11
MF
MV2
MV1
RT11
TB
RT12
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
RC4V32 Including RUBBER MOUNT
AUTO RESTART
Including No.16
MSH-CB50VB -
E1
MSH-CB50VB
23
24
E02 529 426
E02 527 083
REMOTE CONTROLLER
REMOTE CONTROLLER HOLDER
1
1
KM04A
11-3. INDOOR UNIT FUNCTIONAL PARTS AND
ELECTRICAL PARTS
1
20
19
11-4. ACCESSORY AND
REMOTE CONTROLLER
23 24
2
3
4
12
11
18
5
6
14
13
10
7
8
9
15
16
17
11-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS
Part numbers that are circled are not shown in the illustration.
11-4. ACCESSORY AND REMOTE CONTROLLER
20
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