Mitsubishi | MSH-A30WV | Service manual | Mitsubishi MSH-A30WV Service manual

Mitsubishi MSH-A30WV Service manual
Revision D:
• Parts numbers of indoor fan motor and
motor band have been changed.
• Some descriptions have been modified.
SPLIT-TYPE AIR CONDITIONERS
Please void OB367 REVISED EDITION-C.
INDOOR UNIT
No. OB367
SERVICE MANUAL
REVISED EDITION-D
Models
MSH-GA50VB MSH-GA60VB MSH-GA80VB -
E1
E1
E1
Outdoor unit service manual
MUH-GA•VB Series (OB368)
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
3. SPECIFICATION·················································5
4. NOISE CRITERIA CURVES ·······························6
5. OUTLINES AND DIMENSIONS ·························7
6. WIRING DIAGRAM ············································8
7. REFRIGERANT SYSTEM DIAGRAM ················9
8. SERVICE FUNCTIONS ····································10
9. TROUBLESHOOTING······································12
10. DISASSEMBLY INSTRUCTIONS·····················21
11. PARTS LIST······················································23
12. RoHS PARTS LIST···········································25
13. OPTIONAL PARTS···········································27
NOTE:
This service manual describes technical data of the indoor units.
RoHS compliant products have <G> mark on the spec name plate.
For servicing of RoHS compliant products, refer to the RoHS PARTS LIST (RoHS compliant).
Downloaded from AC-Manual.com Manuals
Use the specified refrigerant only
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the spec labels provided with our products.
We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by
failure to follow the instructions.
Revision A:
•RoHS PARTS LIST has been added.
Revision B:
•RoHS PARTS LIST has been corrected.
Revision C:
• Another type of the electronic control P.C. board (TYPE 2) has been added to the original one (TYPE 1). They are both compatible with MSH-GA50/60/80VB- E1 .
Revision D:
• Parts numbers of indoor fan motor and motor band have been changed.
• Some descriptions have been modified.
1
TECHNICAL CHANGES
MSH-A18WV - E1 ➔MSH-GA50VB - E1
MSH-A24WV - E1 ➔MSH-GA60VB - E1
MSH-A30WV - E1 ➔MSH-GA80VB - E1
1. Model name has been changed.
Indication of capacity has been changed. (BTU➔kW)
2. Grille design has been changed.
3. Unit size has been changed.(W 1,100mmoH 325mmoD 227mm ➔ W1,100mmoH 325mmoD 258mm)
OB367D
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2
2
PART NAMES AND FUNCTIONS
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
Air cleaning filter (option)
(White bellows type)
Grille
Air inlet
To breaker
Front panel
Power supply cord
Catechin air filter
Remote control
receiving section
Vertical vanes
Horizontal vane
Remote controller
Operation section
Display section
(When the grille is opened)
Operation indicator lamp
Emergency operation switch
Remote control
receiving section
ACCESSORIES
1
2
3
4
5
6
7
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
1
7
1
2
2
1
1
Installation plate
Installation plate fixing screw 4 o 25 mm
Remote controller holder
Fixing screw for 3 o 3.5 o 1.6 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Felt tape (Used for left or left-rear piping)
OB367D
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3
REMOTE CONTROLLER
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
Signal transmitting section
Operation display section
PM
OPERATE /STOP
(ON /OFF)button
AM
TOO
ON/OFF WARM
TOO
COOL
TEMPERATURE buttons
Indication of remote controller
model is on back.
Open the front lid.
CLOCK
PM
AM
TOO
ON/OFF WARM
VANE button
(Horizontal vane button)
TOO
COOL
FAN
STOP
VANE
START
I FEEL COOL
FAN SPEED CONTROL button
OFF-TIMER button
HEAT DRY
ON-TIMER button
MODE WIDE VANE
HR.
OPERATION SELECT button
ECONO COOL
LONG
ECONO COOL button
MIN.
HR. button
MIN. button
(TIME SET button)
RESET CLOCK
CLOCK SET button
WIDE VANE button
(Vertical vane button)
LONG button
RESET button
OB367D
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4
3
SPECIFICATION
Indoor model
MSH-GA50VB
Power supply
Electrical
data
Fan
motor
Special
remarks
K /h
A
A
W
%
A
"
mm
kg
dB
rpm
k"
k"
Heating
Single phase
230V, 50Hz
768/642/528
10
0.3
60
87
0.30
RC4V32-AA
WHT-BLK 293
BLK-RED 146
1,100O325O258
16
5
42/38/34
1,070/920/780
3
10
10
KP0A, KM04A
Cooling
Electrical
data
Fan
motor
Special
remarks
Heating
Single phase
230V, 50Hz
Power supply
Breaker capacity
Running current
Power input
Power factor
Fan motor current
Model
Winding
resistance (at 20:)
Dimensions WOHOD
Weight
Air direction
Sound level (High/Med./Low)
Fan speed (High/Med./Low)
Fan speed regulator
Thermistor RT11 (at 25:)
Thermistor RT12 (at 25:)
Thermistor RT13 (at 25:)
Remote controller model
Heating
Single phase
230V, 50Hz
768/672/588
768/642/528
10
0.3
60
87
0.30
RC4V32-AA
WHT-BLK 293
BLK-RED 146
1,100O325O258
16
5
45/40/34
45/41/37
1,070/920/780
1,070/960/850
3
10
10
KP0A, KM04A
MSH-GA80VB
Indoor model
Function
Capacity Air flow (High/Med./Low)
Cooling
Cooling
Function
Capacity Air flow (High/Med./Low)
Breaker capacity
Running current
Power input
Power factor
Fan motor current
Model
Winding
resistance (at 20:)
Dimensions WOHOD
Weight
Air direction
Sound level (High/Med./Low)
Fan speed (High/Med./Low)
Fan speed regulator
Thermistor RT11 (at 25:)
Thermistor RT12 (at 25:)
Remote controller model
MSH-GA60VB
K /h
A
A
W
%
A
10
0.34
69
88
0.34
RC4V40-AA
WHT-BLK 138.2
BLK-RED 159.0
1,100O325O258
16
5
47/42/37
"
mm
kg
dB
rpm
960/834/732
960/822/684
1,310/1,130/970
1,310/1,150/1,020
3
10
10
10
KP0A, KM04A
k"
k"
k"
NOTE: Test conditions are based on ISO 5151.
Cooling : Indoor Dry-bulb temperature 27: Wet-bulb temperature 19:
Outdoor Dry-bulb temperature 35: Wet-bulb temperature (24:)
Heating : Indoor Dry-bulb temperature 20: Wet-bulb temperature 15.5:
Outdoor Dry-bulb temperature 7: Wet-bulb temperature 6:
Indoor-Outdoor piping length : 5m
OB367D
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5
NOISE CRITERIA CURVES
4
MSH-GA50VB
MSH-GA60VB
FAN SPEED SPL(dB(A))
High
FAN SPEED SPL(dB(A))
LINE
High
42
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
10
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
NC-20
250
500
1000
2000
4000
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
20
10
8000
45
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
90
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
90
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
BAND CENTER FREQUENCIES, Hz
125
NC-20
250
500
1000
2000
High
LINE
47
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:
90
80
WALL
1m
MICROPHONE
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
10
INDOOR UNIT
0.8m
70
20
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
63
125
NC-20
250
500
1000
2000
4000
8000
BAND CENTER FREQUENCIES, Hz
OB367D
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4000
BAND CENTER FREQUENCIES, Hz
MSH-GA80VB
FAN SPEED SPL(dB(A))
6
LINE
8000
5
OUTLINES AND DIMENSIONS
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
Unit: mm
Installation plate
Indoor unit
7.5
173
98
414.5
414.5
173
47
2.5
47
255.5
1068
315
98
Wall hole [75
258
1100
Air in
5
Installation plate
{
325
{
791
56
253
Air out
19
159
58
OB367D
Drain hose [16
(Connected part O.D)
Insulation [28
Power supply cord
Lead to right 2.0m
Lead to left 1.0m
Wireless remote controller
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Liquid line [ 6.35- 0.5m
Gas line [ 12-0.43m
Insulation [ 50 O.D
[ 32 I.D
for MSH-GA50/60VB
Liquid line [ 9.52- 0.5m
Gas line [ 12-0.43m
Insulation [ 50 O.D
[ 32 I.D
for MSH-GA80VB
7
6
WIRING DIAGRAM
MSH-GA50VB
MSH-GA60VB
TO OUTDOOR
UNIT
CONNECTING
12V
HIC1
3
TB
POWER
SUPPLY
CORD
~/N 230V
50Hz
L
NR11
3
2
1
BLU
CN
151
BRN
BLU
CN
102
15
BLK
GRY
YLW
BRN
WHT
RED
3
CN
121
C11 1
F11
TAB12
BRN
RT12
CN112
CN201
RED
N
2
1
SR141
CN211
ELECTRONIC CONTROL CN
P.C. BOARD
111
CN
101
3
3
4
1
2
3
4
5
6
MF
RT11
3
PE
MV2 MV2 MV1
GRN/YLW
CIRCUIT
BREAKER
SYMBOL
DISPLAY
P.C.BOARD
RECEIVER
P.C.BOARD
REMOTE
CONTROLLER
NAME
SYMBOL
NAME
C11
INDOOR FAN CAPACITOR
MV1
VANE MOTOR (HORIZONTAL)
F11
FUSE (3.15A)
MV2
VANE MOTOR (VERTICAL)
DC/DC CONVERTER
NR11
VARISTOR
INDOOR FAN MOTOR (INNER FUSE)
RT11
ROOM TEMPERATURE THERMISTOR
HIC1
MF
SYMBOL
NAME
RT12
INDOOR COIL THERMISTOR
SOLID STATE RELAY
SR141
TERMINAL BLOCK
TB
NOTES: 1.About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3.Symbols below indicate.
: Connector
: Terminal block
MSH-GA80VB
TO OUTDOOR
UNIT
CONNECTING
12V
HIC1
3
TB
L
NR11
3
2
1
BLU
CN
151
CN
102
15
3
3
4
SR141
RT12
3
BLK
GRY
YLW
BRN
WHT
RED
CN
111
RT11
3
PE
SYMBOL
MV2 MV2 MV1
GRN/YLW
CIRCUIT
BREAKER
DISPLAY
P.C.BOARD
RECEIVER
P.C.BOARD
REMOTE
CONTROLLER
NAME
NAME
SYMBOL
C11
INDOOR FAN CAPACITOR
MV2
VANE MOTOR(VERTICAL)
F11
FUSE(3.15A)
NR11
VARISTOR
DC/DC CONVERTER
RT11
ROOM TEMPERATURE THERMISTOR
MF
INDOOR FAN MOTOR(INNER PROTECTOR)
RT12
INDOOR COIL THERMISTOR (MAIN)
MV1
VANE MOTOR(HORIZONTAL)
RT13
INDOOR COIL THERMISTOR (SUB)
HIC1
NOTES: 1.About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.
2.Use copper conductors only. (For field wiring)
3.Symbols below indicate.
: Terminal block
OB367D
: Connector
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8
SYMBOL
SR141
TB
MF
CN211
ELECTRONIC CONTROL
P.C. BOARD
CN
101
BRN
BLU
CN
121
C11 1
F11
TAB12
BRN
RT13
CN112
CN201
RED
N
POWER
SUPPLY
CORD
~/N 230V
50Hz
4
3
2
1
NAME
SOLID STATE RELAY
TERMINAL BLOCK
7
REFRIGERANT SYSTEM DIAGRAM
MSH-GA50VB
MSH-GA60VB
Unit:mm
Refrigerant pipe [15.88
(with heat insulator)
Refrigerant pipe [12.7
(with heat insulator)
Indoor coil
thermistor
RT12
Distributor
Indoor
heat
exchanger
Indoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT11
Indoor coil
thermistor
RT12
Distributor
Room temperature
thermistor
RT11
Flared connection
Flared connection
Refrigerant pipe [6.35
(with heat insulator)
Refrigerant pipe [6.35
(with heat insulator)
MSH-GA80VB
Refrigerant pipe [15.88
(with heat insulator)
Indoor
heat
exchanger
Indoor coil
thermistor
RT12(main)
Flared connection
Indoor coil
thermistor
RT13(sub)
Room temperature
thermistor
RT11
Strainer
#50
Flared connection
Refrigerant flow in cooling
Refrigerant pipe [9.52
(with heat insulator)
OB367D
Flared connection
Downloaded from AC-Manual.com Manuals
Refrigerant flow in heating
9
8
SERVICE FUNCTIONS
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
8-1. TIMER SHORT MODE
For service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board.
The time will be shortened as follows. (Refer to 9-6.)
Set time : 1 minute ➔ 1-second
Set time : 3 minute ➔ 3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is
shortened by short circuit of JPG and JPS.)
8-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION
A maximum of 4 indoor units with wireless remote controllers can be used in a room.
In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be
modified according to the number of the indoor unit.
How to modify the remote controller P.C. board
Remove batteries before modification.
The board has a print as shown below :
NOTE : For modification, take out the batteries and press the OPERATE/ STOP (ON/ OFF) button 2 or 3 times at first.
After modification, put back the batteries then press the RESET button.
Remote controller model : KP0A
J2
Remote controller model : KM04A
J1
J1
J2
The P.C. board has the print “J1” and “J2”. Solder “J1” and “J2” according to the number of indoor unit as shown in Table 1.
After modification, press the RESET button.
Table 1
1 unit operation
2 units operation
3 units operation
4 units operation
No. 1 unit
No modification
Same as at left
Same as at left
Same as at left
No. 2 unit
–
Solder J1
Same as at left
Same as at left
No. 3 unit
–
–
Solder J2
Same as at left
No. 4 unit
–
–
–
Solder both J1 and J2
How to set the remote controller exclusively for particular indoor unit
After you turn the breaker ON, the first remote controller that sends the signal to the indoor unit will be regarded as the
remote controller for the indoor unit.
The indoor unit will only accept the signal from the remote controller that has been assigned to the indoor unit once they are
set. The setting will be cancelled if the breaker has turned off, or the power supply has shut down.
Please conduct the above setting once again after the power has restored.
OB367D
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10
8-3. AUTO RESTART FUNCTION
When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fan speed are
memorized by the indoor electronic control P.C. board. “AUTO RESTART FUNCTION” automatically starts operation in the
same mode just before the shutoff of the main power. However if the unit is operated in “I FEEL CONTROL” mode before
power failure, the operation is not memorized. In “I FEEL CONTROL” mode, the operation is decided by the initial room
temperature.
How to disable “AUTO RESTART FUNCTION”
1Turn OFF the main power for the unit.
2Pull out the electronic control P.C. board, the receiver P.C.
board and the display P.C. board. (Refer to 10-1.2.)
3Solder jumper wire to JR07 on the indoor
electronic control P.C. board. (Refer to 9-6.)
Operation
1If the main power has been cut, the operation settings remain.
2After the power is restored, the unit restarts automatically according to the memory.(However, it takes at least 3 minutes
for the compressor to start running.)
NOTE
•The operation settings are memorized when 10 seconds have passed after the remote controller was operated with the
remote controller.
•If main power is turned OFF or a power failure occurs while AUTO START/STOP timer is active, the timer setting is
cancelled.
•If the unit has been OFF with the remote controller before power failure, the auto restart function does not work as the
power button of the remote controller is OFF.
•To prevent breaker OFF due to the rush of starting current, systematize other home appliances not to turn ON at the same
time.
•When some air conditioners are connected to the same supply system, if they are operated before power failure, the
starting current of all the compressors may flow simultaneously at restart.
Therefore, the special counter-measures are required to prevent the main voltage-drop or the rush of the starting current
by adding to the system that allows the units to start one by one.
OB367D
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9
TROUBLESHOOTING
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
9-1. Cautions on troubleshooting
1. Before troubleshooting, check the following:
(1) Check the power supply voltage.
(2) Check the indoor/outdoor connecting wire for mis-wiring.
2. Take care the following during servicing.
(1) Before servicing the air conditioner, be sure to turn OFF the main unit first with the remote controller, and then after
confirming the horizontal vane is closed, turn OFF the breaker and / or disconnect the power plug.
(2) Be sure to turn OFF the power supply before removing the front panel, the cabinet, the top panel, and the electronic
control P.C. board.
(3) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the
components.
(4) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires.
<Incorrect>
<Correct>
Lead wiring
Housing point
3. Troubleshooting procedure
(1) Check if the OPERATION INDICATOR lamp on the indoor unit is flashing ON and OFF to indicate an abnormality.
To make sure, check how many times the OPERATION INDICATOR lamp is flashing ON and OFF before starting service work.
(2) Before servicing, check that the connector and terminal are connected properly.
(3) When the electronic control P.C. board seems to be defective, check the copper foil pattern for disconnection and the
components for bursting and discolouration.
(4) When troubleshooting, refer to 9-2. and 9-3.
4. How to replace batteries
Weak batteries may cause the remote controller malfunction.
In this case, replace the batteries to operate the remote controller normally.
1 Remove the front lid and insert batteries.
2 Press the RESET button with a thin instrument, and
Then reattach the front lid.
then use the remote controller.
Insert the negative pole
of the batteries first.
Check if the polarity of
the batteries is correct.
RESET button
NOTE : 1. If the RESET button is not pressed, the remote controller may not operate correctly.
2. Do not use the leaking batteries.
OB367D
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12
9-2. Instruction of troubleshooting
Start
Indoor unit
operates.
Outdoor unit
does not operate
normally.
Indoor unit
operates.
Outdoor unit
does not
operate.
Outdoor unit
does not
operate
even in
Test Run
operation.w
Outdoor unit
operates only
in Test Run
operation.w
Check room
temperature
thermistor.
Refer to 9-6.
"Test point
diagram and
voltage".
Refer to
"Check of
outdoor unit".
Flash on and
off at 0.5second
intervals
Cause:
Indoor/
outdoor unit
• Mis-wiring
2-time flash
Cause:
Indoor unit
• Trouble of
room temperature/
indoor coil
thermistor
Refer to
9-5. D
"How to
check
mis-wiring
(When
outdoor unit
does not
work)".
Check room
temperature
thermistor
and indoor
coil thermistor.
Refer to 9-6.
"Test point
diagram and
voltage".
Unit does not
operate
normal
operation in
COOL or
HEAT mode.
Outdoor unit
does not
stop even
if indoor unit
stops.
Refer to
"Check of
outdoor unit".
3-time flash
Cause:
Indoor unit
• Trouble of
indoor fan
motor
Refer to
9-5. A
"Check of
indoor fan
motor".
Indoor unit
does not receive
the signal from
remote controller.
Refer to
"Check of
R.V. coil".
OPERATION INDICATOR
lamp on the indoor unit is
flashing on and off.
Indoor unit
operates, when
the EMERGENCY
OPERATION
switch is pressed.
Indoor unit
does not operate,
when the
EMERGENCY
OPERATION
switch is pressed.
Refer to 9-5.B
"Check of
remote controller
and receiver
P.C. board".
1. Check indoor /
outdoor
connecting wire.
2. Refer to 9-5.C
"Check of indoor
electronic control
P.C. board".
7-time flash
6-time flash
Cause:
Cause:
Outdoor unit
Outdoor unit
• Trouble of
• Trouble of
outdoor
thermistor
control
in outdoor
system
unit
4-time flash
Cause:
Indoor unit
• Trouble of
indoor unit
control
system
Replace the
indoor
electronic
control
P.C. board.
Refer to
"Check of
outdoor
thermistor".
Replace the
deicer
P.C. board.
10-time flash
Cause:
Outdoor unit
MUH-GA80VB
• Trouble of
low discharge
temperature
protection
Refer to
"Check of
LEV".
w"Test Run operation" means the operation within 30 minutes after EMERGENCY OPERATION switch is pressed.
Refer to outdoor unit service manual.
OB367D
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9-3. Troubleshooting check table
• The following indication applies regardless of shape of the indicator.
Operation Indicator
Lighted
Not lighted
· Flashing of the OPERATION INDICATOR lamp (on the left-hand side) indicates possible
abnormalities.
· The OPERATION INDICATOR lamp (on the left-hand side) is lighting during normal operation.
Before taking measures, make sure that the symptom reappears for accurate troubleshooting.
Self check table
No.
Abnormal
point
Operation indicator lamp
0.5-second ON
1
Mis-Wiring
0.5-second OFF
Indoor coil
thermistor
2
Room
temperature
thermistor
2-time flash
Remedy
Outdoor unit
does not
operate.
3 minutes after power supply turns ON, when
serial signal is not received.
• Refer to 9-5. D "How to check
mis-wiring ".
Detect Indoor coil/room temperature
thermistor short or open circuit every 8
seconds during operation.
• Refer to the characteristics
of indoor coil thermistor, and
room temperature thermistor
(9-6.).
2.5-second OFF
Indoor fan
motor
2.5-second OFF
4-time flash
Indoor
4 control
system
Condition
Outdoor unit
does not
operate.
3-time flash
3
Symptom
Indoor fan repeats
12 seconds ON
and 3minutes OFF.
When the indoor
fan breaks, the fan
keeps stopping.
Outdoor unit
does not
operate.
Rotational frequency feedback signal is not
emitted for 12-second after indoor fan motor is
operated.
• Refer to 9-5. A "Check of
indoor fan motor".
It cannot properly read data in the nonvolatile
memory of the indoor electronic control P.C.
board.
• Check the indoor electronic
control P.C. board.
<Thermistor short>
Thermistors are abnormal when they short
after compressor start-up.
<Thermistor open>
Thermistors are abnormal when they open
after compressor start-up.
However, discharge temperature thermistor is
abnormal when open circuit is detected more
than 10 minutes after compressor start-up.
• Shortage of refrigerant
• Check the deicer P.C.
board.
Refer to "Check of outdoor
thermistor". Refer to outdoor
service manual.
It cannot properly read data in the nonvolatile
memory of the deicer P.C. board.
Outdoor unit stops [and restarts 3 minutes
later (MUH-GA60VB).]
• Check the deicer P.C. board.
Refer to outdoor service
manual.
MUH-GA80VB
Discharge temperature has been 50: or less
on cool operation, or has been 49: or less on
heat operation for 20 minutes.
MUH-GA80VB
• Refer to "Check of LEV".
• Check refrigerant circuit and
refrigerant amount.
Refer to outdoor unit service
manual.
2.5-second OFF
6-time flash
5
Outdoor
thermistor
2.5-second OFF
Outdoor unit
does not
operate.
7-time flash
6
Outdoor
control
system
2.5-second OFF
Outdoor unit
does not
operate.
10-time flash
MUH-GA80VB
Low
7 discharge
temperature
protection
Outdoor unit
does not
operate.
2.5-second OFF
NOTE : When the indoor unit has started operation and the above detection method has detected an abnormality (the first
detection after the power ON), the indoor electronic control P.C. board turns OFF the indoor fan motor with the
OPERATION INDICATOR lamp flashing.
OB367D
Downloaded from AC-Manual.com Manuals
14
9-4. Trouble criterion of main parts
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
Part name
Room temperature
thermistor(RT11)
Check method and criterion
Measure the resistance with a tester.
(Part temperature 10˚C ~ 30˚C)
Figure
Indoor coil thermistor
Refer to 9-6."Test point diagram and voltage",
(RT12(main), RT13(sub)) "Indoor electronic control P.C. board", for the chart of thermistor.
Horizontal vane
motor(MV1)
Vertical vane
motor(MV2)
AUX
FUSE
BLK
BRN
YLW
GRY
RED
WHT
Normal
MSH-GA50/GA60VB MSH-GA80VB
132 " ~ 144 "
282 " ~ 305 "
152 " ~ 166 "
141 " ~ 152 "
MAIN
MSH-GA80VB
Measure the voltage power ON.
Color of lead wire
BRN – YLW
YLW – GRY
Normal
4.5 ~ 5.5V
(When fan revolved one time)
0V➔5V➔0V
(Approx.)
Measure the resistance between the terminal with a tester.
(Part temperature 10°C ~ 30°C)
Normal
282" ~ 306 "
MAIN
AUX.
P
RED
WHT
MSH-GA80VB
INNER
PROTECTOR
135i 5: OPEN
Color of
lead wire
WHT – BLK
BLK – RED
MSH-GA50/GA60VB
BLK
BRN
YLW
GRY
RED
MSH-GA50/GA60VB
INNER FUSE
145: CUT OFF
Sensor part
Indoor fan motor(MF)
Motor part
Measure the resistance between the terminals with a tester.
(Part temperature 10˚C ~ 30˚C)
ROTOR
YLW
BRN
ORN
GRN
P :INNER PROTECTOR
OB367D
Downloaded from AC-Manual.com Manuals
15
9-5. Troubleshooting flow
When OPERATION INDICATOR lamp flashes 3-time.
Indoor fan motor does not operate.
A Check of indoor fan motor
Turn OFF the power supply.
Check connector CN211 visually.
No
Yes
Are lead wires connected?
Is soldered point of the connector
correctly soldered?
No
Resolder it.
Yes
Reconnect the lead wires.
Disconnect lead wires from connector CN211 on the indoor electronic control P.C. board.
Measure resistance between lead wires No.3 and No.4 and then No.1 and No.4.
Is resistance 0 (short circuit) or ∞ (open circuit)?
Yes ( 0 or ∞ )
No
(others)
Repair or replace the indoor fan motor.
Turn ON the power supply. Stop it if the unit operate.
Insert screwdriver into air outlet to rotate indoor fan
motor slowly for 1 revolution or over, and measure
voltage between No.2(+) and No.3(-) on CN121.
No
Does voltage repeat 0 VDC and 5 VDC?
Yes
Replace the indoor electronic control P.C. board.
Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller.
B Check of remote controller and receiver P.C. board
w Check if the remote controller is exclusive for this air conditioner.
Press OPERATE/ STOP (ON/ OFF)
button on the remote controller.
Is LCD display on the remote controller visible?
No
Replace the batteries (Refer to 9-1.4.).
(not clear)
Yes
Remove the batteries, then set them back
and press the RESET button. Check if the
unit operates with the remote controller.
Does the unit operate with the
remote controller?
No
Turn ON a radio to AM and press
OPERATE/ STOP (ON/ OFF) button on
the remote controller.
Yes
No
OK
Is noise heard from radio?
Replace the remote controller.
Yes
Are there any fluorescent lights of
inverter or rapid-start type within
the range of 1m?
Yes
● Reinstall the unit away from lights.
● Attach a filter on receiving part.
No
Measure the voltage between receiver P.C. board connector CN301 No.1(+) and No.3(-) when the remote
controller button is pressed (Refer to 9-6.).
Yes
Is the voltage approximately 4 VDC?
No (5V or 0 VDC)
Replace the receiver P.C. board.
OB367D
Downloaded from AC-Manual.com Manuals
16
Replace the indoor electronic control P.C.
board.
The unit does not operate with the remote controller. Also, the OPERATION INDICATOR lamp does not light up by
pressing the EMERGENCY OPERATION switch.
C Check of indoor electronic control P.C. board
Check the both “parts side” and “pattern
side” of indoor electronic control P.C.
board visually.
Varistor (NR11)
Turn OFF the power supply.
Remove indoor fan motor connector CN211 and
vane motor connector CN151 from the indoor electronic
control P.C. board and turn ON the power supply.
Fuse (F11)
Indoor electronic
control P.C. board
Does the unit operate with the remote controller?
No
Does the OPERATION INDICATOR lamp light up
by pressing the EMERGENCY OPERATION switch?
Yes
Turn OFF the
power supply.
Replace the vane
motor.
Turn OFF the
power supply.
Yes
Replace the fuse.
Yes
Is winding
resistance of
vane motor 0 "?
Is fuse(F11) blown?
No
No
Is winding
resistance of
fan motor 0 "?
No
Is varistor(NR11) burnt?
Yes
Yes
Replace the fan
motor.
OB367D
Downloaded from AC-Manual.com Manuals
Replace the varistor.
17
No
Replace the indoor
electronic control
P.C. board.
When OPERATION INDICATOR lamp flashes ON and OFF in every 0.5-second.
Outdoor unit does not operate.
D How to check mis-wiring
w Short circuit of JPG and JPS on the indoor electronic control
P.C. board enables self -check to be displayed in 3 seconds.
Start
• Turn ON the power supply. (indoor/ outdoor unit)
• Press EMERGENCY OPERATION switch once.
After 3 minutes, mis-wiring is indicated
(0.5-second ON, 0.5-second OFF)
on OPERATION INDICATOR
lamp on indoor unit.w
Yes
Correct them.
Is this mis-wiring, poor contact,
or wire disconnection?
No
1. Turn OFF the power supply (indoor/ outdoor unit) and disconnect indoor and outdoor
connecting wire on indoor side.
2. Short-circuit terminal block N-3 by lead wire.
3. Turn ON the power supply (indoor unit) and press EMERGENCY OPERATION switch once.
Is there 20V DC between both ends of
R132 on the indoor electronic control P.C.
board ?
( By tester, the stylus is between 0 ~ 20V. )
No
Replace the indoor electronic
control P.C. board.
Yes
• Turn OFF the power supply. (indoor unit)
• Connect indoor/ outdoor connecting
wire.
Turn ON the power supply. (outdoor unit)
No
Is there 230V AC between L-N
on the outdoor terminal block?
Check the outdoor power supply
and connection of wiring.
Yes
Is there 5V DC between J205 + -J101 No
(MUH-GA50VB)/ J101 + -J401 - (MUH- GA60
/GA80VB) on the deicer P.C. board?
Replace the deicer P.C. board.
Yes
During EMERGENCY OPERATION, is there
10V DC between both ends of R601 on the
deicer P.C. board?
(By tester, the stylus is between 5 ~10V.)
Yes
Replace the deicer P.C. board.
Refer to outdoor unit service manual.
OB367D
Downloaded from AC-Manual.com Manuals
18
No
Make the wiring between CN730
on the deicer P.C. board and
outdoor terminal block correct.
9-6. Test point diagram and voltage
MSH-GA50VB MSH-GA60VB MSH-GA80VB
Indoor electronic control P.C. board
w There are 2 types of electronic control P.C. boards
(TYPE1/TYPE2).
They are both compatible with MSH-GA50/60/80VB.
TYPE 1
Fan motor power supply
(CN211)
}
Power supply input
230 VAC
+
} 5 VDC
Room temperature thermistor(RT11)
Indoor coil
thermistor(RT12 (main))
MSH-GA80VB
Indoor coil
thermistor(RT13 (sub))
Fuse (F11)
T3.15AL250V
R132
CN121
Vane motor power
supply (CN151)
Emergency operation
switch
Timer short mode point
(JPS, JPG)
(Refer to 8-1.)
+
}
Receiver P.C. board
12 VDC
CN301
OB367D
Downloaded from AC-Manual.com Manuals
To disable “Auto restart function”,
solder the jumper wire to JR07.
(Refer to 8-3.)
19
Resistance (k")
Indoor coil thermistor
(RT12 (main), RT13 (sub))
Room temperature thermistor (RT11)
MSH-GA50VB MSH-GA60VB MSH-GA80VB
Indoor electronic control P.C. board
TYPE 2
Fan motor power supply
(CN211)
}
+
Fuse (F11)
{
} 5 VDC
Room temperature
thermistor (RT11)
Indoor coil thermistor
(RT12 (main))
R132
12 VDC
Power supply input
230 VAC
MSH-GA80VB
Indoor coil
thermistor (RT13 (sub))
+
CN121
Vane motor
power supply
(CN151)
To disable “Auto restart
function”, solder the
jumper wire to JR07.
(Refer to 8-3.)
Emergency
operation
switch
Timer short mode
point (JPS, JPG)
(Refer to 8-1.)
Indoor coil thermistor
(RT12 (main), RT13 (sub))
Room temperature thermistor (RT11)
Resistance(k )
Receiver P.C. board
CN301
OB367D
Downloaded from AC-Manual.com Manuals
20
10
DISASSEMBLY INSTRUCTIONS
<"Terminal with locking mechanism" Detaching points>
The terminal which has the locking mechanism can be detached as shown below.
There are two types ( Refer to (1) and (2)) of the terminal with locking mechanism.
The terminal without locking mechanism can be detached by pulling it out.
Check the shape of the terminal before detaching.
(1) Slide the sleeve and check if there is a locking lever or not.
(2) The terminal with this connector has the locking
mechanism.
Sleeve
Locking lever
1Slide the sleeve.
2Pull the terminal while
pushing the locking
lever.
1Hold the sleeve, and
pull out the terminal
slowly.
Connector
10-1. MSH-GA50VB MSH-GA60VB MSH-GA80VB
NOTE: Turn OFF power supply before disassembly.
OPERATING PROCEDURE
PHOTOS
1. Removing the front panel
(1) Remove the screw caps of the front panel.
Remove the screws.
(2) Pull the panel down to your side slightly and unhook the
catches at the top.
Photo 1
Front panel
Screws
2. Removing the electronic control P.C. board, the receiver
P.C. board and the display P.C. board
(1) Remove the front panel. (Refer to 1.)
(2) Remove the screw of the electrical cover.
Remove the electrical cover.
(3) Remove the screws of the V.A. clamp.
Remove the V.A. clamp.
(4) Remove the screw of the terminal block.
(5) Remove the screws of the earth wire.
(6) Disconnect all the connectors and all the lead wires on the
electronic control P.C. board.
(7) Remove the R.L holder.
(8) Remove the electronic control P.C. board.
(9) Open the R.L holder, remove the receiver P.C. board and
the display P.C. board.
Photo 2
Screws of the earth wire
Fan motor
connectors
Vane motor
connector
Indoor
electronic
control
P.C. board
Screw of
the electrical
cover
Screw
of the
Receiver
Screw
of
R.L
V.A. clamp
holder the terminal P.C.
board
block
OB367D
Downloaded from AC-Manual.com Manuals
21
OPERATING PROCEDURE
PHOTOS
3. Removing the electrical box
(1) Remove the front panel. (Refer to 1.)
(2) Remove the electrical cover. (Refer to 2.)
(3) Disconnect the connector of the indoor coil thermistor.
(4) Disconnect the motor connector (CN211 and CN121) and
the vane motor connector (CN151) on the electronic
control P.C. board.
(5) Remove the screws of earth wire.
(6) Remove the fan motor lead wire and indoor coil thermistor
from the electrical box.
(7) Remove the lead wire of vane motor from the bottom of
electrical box.
(8) Remove the screw fixing the electrical box and remove the
electrical box.
Photo 3
4. Removing the vane motor
(1) Remove the front panel. (Refer to 1.)
(2) Remove the electrical cover. (Refer to 2.)
(3) Remove the lead wire of vane motor. (Refer to 3.)
(4) Remove the R.L. holder.
(5) Pull out the drain hose from the nozzle assembly and
remove the nozzle assembly.
(6) Remove the screws of the vane motor and disconnect the
connector.
(7) Remove the vane motor.
Photo 4
Screws of the earth wire
Screw of the
electrical cover
Screw of the
electrical box
Vane motors
Photo 5 Screws of the
vane motor
Vane motor
5. Removing the line flow fan and the indoor fan motor
(1) Remove the front panel. (Refer to 1.)
(2) Remove the electrical box. (Refer to 3.)
(3) Pull out the drain hose from the nozzle assembly and
remove the nozzle assembly.
(4) Remove the water cut.
(5) Slide the hole cover and remove the hole cover.
(6) Remove the hexagon socket set screw from the line flow
fan.
(7) Remove the screws fixing the fan motor and remove the
fan motor. (Be careful not to drop the fan motor because it
is heavy.)
(8) Remove the screws fixing the left side of the heat
exchanger.
(9) Lift the left side of the heat exchanger.
(10) Remove the line flow fan.
Photo 8
Photo 6
Screws fixing
the left side
of the heat
exchanger
Photo 7
Indoor
coil
thermistor
Water cut
Hole
cover
Screws fixing the fan motor
OB367D
Downloaded from AC-Manual.com Manuals
22
Screws
of the
vane
motor
11
PARTS LIST (non-RoHS compliant)
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
11-1. INDOOR UNIT STRUCTURAL PARTS
11-2. INDOOR UNIT HEAT EXCHANGER
1
2
10
3
4
8
5
Optional
parts
(See 13.)
11
12
6
7
11-1. INDOOR UNIT STRUCTURAL PARTS
Part number that is circled is not shown in the illustration.
NO.
1
2
3
4
5
6
7
8
9
Part No.
E02
E02
E02
E02
E02
E02
E02
E02
E02
527
685
888
408
685
888
534
685
891
970
234
000
142
067
010
100
975
007
Part Name
Symbol
in Wiring MSH-GA50
Diagram VB - E1
INSTALLATION PLATE
BOX
FRONT PANEL ASSEMBLY
CATCH
SCREW CAP
GRILLE
CATECHIN AIR FILTER
CORNER BOX RIGHT
LAMP PANEL
Q'ty/unit
MSH-GA60 MSH-GA80
VB - E1
VB - E1
1
1
1
4
3
1
2
1
1
1
1
1
4
3
1
2
1
1
1
1
1
1
1
4
3
1
2
1
1
Remarks
Including No.4,5,6
4PCS/ SET
3PCS/ SET
1PCE/ SET
11-2. INDOOR UNIT HEAT EXCHANGER
E02
E02
E02
11
E02
E02
12
E02
10
891
893
179
138
151
527
620
620
667
666
667
667
OB367D
INDOOR HEAT EXCHANGER
INDOOR HEAT EXCHANGER
UNION (GAS)
UNION (GAS)
UNION (LIQUID)
UNION (LIQUID)
Downloaded from AC-Manual.com Manuals
1
1
1
1
1
1
1
23
{12.7
{15.88
{6.35
{9.52
PARTS LIST (non-RoHS compliant)
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
11-3. INDOOR UNIT FUNCTIONAL PARTS AND
ELECTRICAL PARTS
1
21
11-4. ACCESSORY AND
REMOTE CONTROLLER
20
24
2
3
25
12
4
11
19
13
5
6
15
14
10
7
8
9
18
16 17
11-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS
Part numbers that are circled are not shown in the illustration.
NO.
1
2
3
4
5
6
7
8
9
10
11
Part No.
E02
E02
E02
E02
E02
E02
E02
E02
E02
E02
E02
527
408
001
408
996
685
685
127
817
527
527
302
509
504
702
235
040
041
382
385
034
300
Part Name
LINE FLOW FAN
BEARING MOUNT
SLEEVE BEARING
DRAIN HOSE
NOZZLE ASSEMBLY
VANE UPPER
VANE LOWER
FUSE
VARISTOR
VANE CRANK SET
INDOOR FAN MOTOR ASSEMBLY
12 E12 F57 300 INDOOR FAN MOTOR ASSEMBLY
13 E02 448 303
14 E02 408 303
15 E12 F57 333
E02 527 333
16 E02 528 329
17 E02 527 468
E02 891 452
18 E02 892 452
E02 893 452
19 E02 527 308
20 E02 819 375
E02 408 307
21 E02 527 307
22 E02 528 034
23 E02 529 034
w1 Refer to 9-6.
Symbol
in Wiring MSH-GA50
Diagram VB - E1
F11
NR11
1
1
1
1
1
1
1
1
1
1
Q'ty/unit
MSH-GA60
VB - E1
MSH-GA80
VB - E1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MF
MF
VANE MOTOR (VERTICAL)
MV2
VANE MOTOR (HORIZONTAL)
MV1
MOTOR BAND SET
MOTOR BAND
DISPLAY P.C. BOARD
RECEIVER P.C. BOARD
ELECTRONIC CONTROL P.C. BOARD w1
ELECTRONIC CONTROL P.C. BOARD w1
ELECTRONIC CONTROL P.C. BOARD w1
ROOM TEMPERATURE THERMISTOR
RT11
TERMINAL BLOCK
TB
INDOOR COIL THERMISTOR
RT12
INDOOR COIL THERMISTOR
RT12, RT13
VANE MOTOR SUPPORT SET (RIGHT)
VANE MOTOR SUPPORT SET (LEFT)
1
1
2
1
1
2
1
1
1
1
1
1
1
2
1
1
1
1
T3.15AL250V
RC4V40 Including RUBBER MOUNT
RC4V40 Including RUBBER MOUNT,
MOTOR BAND and MOTOR BED
RIGHT & LEFT
UP & DOWN
Including two kinds of
motor bands
1
1
1
1
1
1
1
Remarks
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AUTO RESTART
Including No.16
AUTO RESTART
Including No.16
AUTO RESTART
Including No.16
11-4. ACCESSORY AND REMOTE CONTROLLER
24 E02 529 426
25 E02 527 083
REMOTE CONTROLLER
REMOTE CONTROLLER HOLDER
OB367D
Downloaded from AC-Manual.com Manuals
24
KP0A, KM04A
12
RoHS PARTS LIST (RoHS compliant)
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
12-1. INDOOR UNIT STRUCTURAL PARTS
12-2. INDOOR UNIT HEAT EXCHANGER
1
2
10
3
4
8
5
Optional
parts
(See 13.)
11
12
6
7
12-1. INDOOR UNIT STRUCTURAL PARTS
NO.
RoHS
Part number that is circled is not shown in the illustration.
1
2
3
4
5
6
7
8
9
G
G
G
G
G
G
G
G
G
Part No.
E12
E12
E12
E12
E12
E12
E12
E12
E12
527
685
888
408
685
888
534
685
891
Part Name
970
234
000
142
067
010
100
975
007
Symbol
in Wiring MSH-GA50
Diagram VB - E1
INSTALLATION PLATE
BOX
FRONT PANEL ASSEMBLY
CATCH
SCREW CAP
GRILLE
CATECHIN AIR FILTER
CORNER BOX RIGHT
LAMP PANEL
Q'ty/unit
MSH-GA60 MSH-GA80
VB - E1
VB - E1
1
1
1
4
3
1
2
1
1
1
1
1
4
3
1
2
1
1
1
1
1
1
1
4
3
1
2
1
1
Remarks
Including No.4,5,6
4PCS/ SET
3PCS/ SET
1PCE/ SET
12-2. INDOOR UNIT HEAT EXCHANGER
G
G
G
11
G
G
12
G
10
E12
E12
E12
E12
E12
E12
891
893
179
138
151
527
OB367D
620
620
667
666
667
667
INDOOR HEAT EXCHANGER
INDOOR HEAT EXCHANGER
UNION (GAS)
UNION (GAS)
UNION (LIQUID)
UNION (LIQUID)
Downloaded from AC-Manual.com Manuals
1
1
1
1
1
1
1
25
{12.7
{15.88
{6.35
{9.52
RoHS PARTS LIST (RoHS compliant)
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
12-3. INDOOR UNIT FUNCTIONAL PARTS AND
ELECTRICAL PARTS
1
21
12-4. ACCESSORY AND
REMOTE CONTROLLER
20
24
25
2
3
12
4
11
19
13
5
6
15
14
10
7
8
9
18
16 17
12-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS
NO.
RoHS
Part numbers that are circled are not shown in the illustration.
1
2
3
4
5
6
7
8
9
10
11
G
G
G
G
G
G
G
G
G
G
G
Part No.
E12
E12
E12
E12
E12
E12
E12
E12
E12
E12
E12
527
408
001
408
996
685
685
A49
817
527
527
12 G E12 F57
13 G E12 448
14 G E12 408
E12 F57
15 G
G E12 527
16 G E12 528
17 G E12 527
G E12 891
18 G E12 892
G E12 893
19 G E12 527
20 G E12 819
G E12 408
21
G E12 527
22 G E12 528
23 G E12 529
w1 Refer to 9-6.
302
509
504
702
235
040
041
382
385
034
300
Part Name
LINE FLOW FAN
BEARING MOUNT
SLEEVE BEARING
DRAIN HOSE
NOZZLE ASSEMBLY
VANE UPPER
VANE LOWER
FUSE
VARISTOR
VANE CRANK SET
INDOOR FAN MOTOR ASSEMBLY
300 INDOOR FAN MOTOR ASSEMBLY
303
303
333
333
329
468
452
452
452
308
375
307
307
034
034
Symbol
in Wiring MSH-GA50
Diagram VB - E1
F11
NR11
1
1
1
1
1
1
1
1
1
1
Q'ty/unit
MSH-GA60
VB - E1
MSH-GA80
VB - E1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
MF
MF
VANE MOTOR (VERTICAL)
MV2
VANE MOTOR (HORIZONTAL)
MV1
MOTOR BAND SET
MOTOR BAND
DISPLAY P.C. BOARD
RECEIVER P.C. BOARD
ELECTRONIC CONTROL P.C. BOARD w1
ELECTRONIC CONTROL P.C. BOARD w1
ELECTRONIC CONTROL P.C. BOARD w1
ROOM TEMPERATURE THERMISTOR RT11
TERMINAL BLOCK
TB
INDOOR COIL THERMISTOR
RT12
INDOOR COIL THERMISTOR
RT12, RT13
VANE MOTOR SUPPORT SET (RIGHT)
VANE MOTOR SUPPORT SET (LEFT)
1
1
2
1
1
2
1
1
1
1
1
1
1
2
1
Remarks
T3.15AL250V
RC4V40 Including RUBBER MOUNT
RC4V40 Including RUBBER MOUNT,
MOTOR BAND and MOTOR BED
RIGHT & LEFT
UP & DOWN
Including two kinds of
motor bands
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AUTO RESTART
Including No.16
AUTO RESTART
Including No.16
AUTO RESTART
Including No.16
12-4. ACCESSORY AND REMOTE CONTROLLER
24 G E12 529 426
25 G E12 527 083
REMOTE CONTROLLER
REMOTE CONTROLLER HOLDER
OB367D
Downloaded from AC-Manual.com Manuals
26
KP0A, KM04A
13
OPTIONAL PARTS
AIR CLEANING FILTER
●
●
●
●
Normal life of AIR CLEANING FILTER is 4 months. However, when it becomes dirty, replace it as soon as possible.
Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet.
DO NOT reuse AIR CLEANING FILTER even if it is washed.
DO NOT remove or attach AIR CLEANING FILTER during unit operation.
Model
Part No.
MSH-GA50VB
MSH-GA60VB
MSH-GA80VB
MAC-1700FT
Air cleaning filter (White bellows type)
OB367D
Downloaded from AC-Manual.com Manuals
27
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
C Copyright 2007 MITSUBISHI ELECTRIC CORPORATION
Distributed in Jan. 2012. No.OB367 REVISED EDITION-D
Distributed in Aug. 2011. No.OB367 REVISED EDITION-C
Distributed in May 2007. No.OB367 REVISED EDITION-B 6
Distributed in May 2006. No.OB367 REVISED EDITION-A 6
Distributed in Oct. 2004. No.OB367 6
Made in Japan
Downloaded from AC-Manual.com Manuals
New publication, effective Jan. 2012
Specifications are subject to change without notice.
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