SPLIT-TYPE, AIR CONDITIONERS
INDOOR UNIT
No. TBH014
SERVICE MANUAL
Wireless type
Models
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
C1
Outdoor unit service manual
MU-GD•ND Series (TBH016)
CONTENTS
1. TECHNICAL CHANGES ................................... 2
2. PART NAMES AND FUNCTIONS..................... 3
3. SPECIFICATION................................................ 4
4. OUTLINES AND DIMENSIONS ........................ 5
5. WIRING DIAGRAM............................................ 6
6. REFRIGERANT SYSTEM DIAGRAM............... 7
7. SERVICE FUNCTIONS ..................................... 8
8. TROUBLESHOOTING..................................... 10
9. DISASSEMBLY INSTRUCTIONS ................... 19
C1
C1
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
PARTS CATALOG (TBB014)
TM
NOTE:
• RoHS compliant products have <G> mark on the spec name plate.
2
PART NAMES AND FUNCTIONS
INDOOR UNIT
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
C1
Air cleaning filter
(white bellows type)
Front panel
Air inlet
Panel
Catechin air filter
(with deodorizing)
Remote control
receiving section
Air outlet
Vertical vanes
Fan
Remote controller
Display section
Horizontal vane
Operation section
(When the front panel is opened)
Operation indicator lamp
Emergency operation switch
Remote control
receiving section
ACCESSORIES
C1
C1
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
1
2
3
4
5
6
7
8
Installation plate
Installation plate fixing screw 4 x 25 mm
Remote controller holder
1
5
1
2
2
1
1
2
Fixing screw for 33.5 x 16 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Felt tape (Used for left or left-rear piping)
Air cleaning filter
3
REMOTE CONTROLLER
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
C1
Signal transmitting section
Operation display section
h
These buttons are able to store the light
from nature, fluorescent lamp, etc and
shine in the dark.
TOO
TOO
ON/OFF
OPERATE/STOP (ON/OFF) button
ECONO COOL button
WARM
COOL
TEMPERATURE buttons
ECONO COOL
POWERFUL COOL
FAN
I
FEEL COOL
FAN SPEED CONTROL button
VANE
FAN DRY
VANE CONTROL button
POWERFUL COOL button
MODE SELECT TIME
OPERATION SELECT button
TIMER MODE SELECT button
TIME SET button
Indication of remote controller
model is on back.
RESET
RESET button
3
SPECIFICATION
C1
C1
C1
Indoor model
MS-GD08ND-
MS-GD10ND-
Cooling
MS-GD12ND-
Function
Power supply
Single phase 220-230V, 60Hz
Capacity Air flow (High/Med/Low)
Power outlet
K/h
588/456/372
630/498/336
666/498/336
A
A
10
0.19
Running current
Power input
W
40
Auxiliary heater
Power factor
A (kW)
%
—
96-92
0.19
Fan motor current
Model
A
RC4N19-BA
Winding
resistance (at 20ºC)
WHT-BLK 312
BLK-RED 255
"
mm
kg
Dimensions WoHoD
Weight
815o278o244
9
10
Air direction
5
39/32/26
960/800/650
3
Sound level (High/Med/Low)
Fan speed (High/Med/Low)
Fan speed regulator
Thermistor RT11 (at 25ºC)
Thermistor RT12 (at 25ºC)
Remote controller model
dB
39/32/26
42/36/29
rpm
1030/800/650
1000/800/650
kΩ
kΩ
10
10
MP2B
NOTE: Test conditions are based on CNS 14464
Cooling : Indoor Dry-bulb temperature 27°C Wet-bulb temperature 19°C
Outdoor Dry-bulb temperature 35°C Wet-bulb temperature 24°C
Refrigerant piping length (one way) 7.5 m
4
4
OUTLINES AND DIMENSIONS
C1
Unit : mm
MS-GD08ND-
81.5
133.5
INDOOR UNIT
Installation plate
Indoor unit
783
815
81.5
81.5
326
326
Wall hole [65
242
5
Air in
Installation plate
Liquid line [6.35-0.5m
Gas line [9.52-0.43m
{
Insulation [37 O.D
[21 I.D
90
149
60
606
Drain hose [16
110
(Connected part O.D)
Insulation [28
Air out
17.5
244
57
Wireless remote controller
161.5
161.5
C1
MS-GD10ND-
MS-GD12ND-
C1
Installation plate
INDOOR UNIT
Indoor unit
783
815
81.5
326
326
5
81.5
Wall hole [65
242
Air in
Installation plate
Liquid line [6.35-0.5m
Gas line [9.52-0.43m
{
Insulation [37 O.D
[21 I.D
90
110
149
60
606
Drain hose [16
(Connected part O.D)
Insulation [28
Air out
17.5
244
57
Wireless remote controller
5
5
WIRING DIAGRAM
C1
MS-GD08ND-
MS-GD12ND-
C1
INDOOR UNIT
C1
MS-GD10ND-
6
6
REFRIGERANT SYSTEM DIAGRAM
C1
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
INDOOR UNIT
INDOOR UNIT
Refrigerant pipe
(Option){12.7
(with heat insulator)
Refrigerant pipe
(Option){9.52
(with heat insulator)
Indoor
Indoor
heat
Indoor coil
thermistor
RT12
heat
exchanger
exchanger
Indoor coil
thermistor
RT12
Flared
connection
Flared
connection
RT11
Room
temperature
thermistor
RT11
Room
temperature
thermistor
Flared
connection
Flared
connection
Refrigerant pipe
(Option){6.35
(with heat insulator)
Refrigerant pipe
(Option){6.35
(with heat insulator)
Refrigerant flow in cooling
7
7
SERVICE FUNCTIONS
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
C1
7-1. TIMER SHORT MODE
For service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. board.
The time will be shortened as follows. (Refer to 8-6.)
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.
7-2. 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 :
Remote controller model : MP2B
J1
J2
NOTE : For remodelling, take out the bat-
teries and push the OPERATE/
STOP(ON/OFF)button twice or 3
times at first.
After finish remodelling, put back
the batteries then press the
RESET button.
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
Same as at left
Same as at left
Solder J2
4 units operation
Same as at left
No. 1 unit
No. 2 unit
No. 3 unit
No. 4 unit
No modification
Same as at left
—
—
—
Solder J1
Same as at left
—
—
Same as at left
—
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 accepts 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.
8
7-3. 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. The “AUTO RESTART FUNCTION” sets to work the moment
power has restored after power failure. Then, the unit will restart automatically. 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.
Operation
1 If the main power has been cut, the operation settings remain.
2 After the power is restored, the unit automatically resumes the same operation
as the memory has recorded.
52C/X10
However, it takes the compressor at least 3 minutes to get started.
How to release “AUTO RESTART FUNCTION”
1 Turn off the main power for the unit.
2 Pull out the indoor electronic control P.C. board and the power monitor, receiver
P.C. board. (Refer to 9-1.)
3 Solder the Jumper wire to the JR07 on the indoor electronic control P.C.board.
(Refer to 8-6.)
IC101
SW1
JR07
NOTE:
• The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote
controller.
• If the 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.
9
8
TROUBLESHOOTING
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
C1
8-1. 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.
Housing point
Lead wiring
3. Troubleshooting procedure
1) First, 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 abnormality indication is flashing on and off before starting service work.
2) Before servicing that the connector and terminal are connected properly.
3) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the
components for bursting and discolouration.
4) When troubleshooting, refer to 8-2. and 8-3.
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 back lid and insert batteries.
Then reattach the back lid.
2
Press the RESET button with tip end of ball point
pen or the like, and then use the remote controller.
Insert the negative pole
of the batteries first.
Check if the polarity of
the batteries are correct.
RESET button
NOTE : 1. If the RESET button is not pressed, the remote controller may not operate correctly.
2. This remote controller has a circuit to automatically reset the microcomputer when batteries are replaced.
This function is equipped to prevent the microcomputer from malfunctioning due to the voltage drop caused by
the battery replacement.
10
5. How to install the horizontal vanes
If horizontal vanes are not installed correctly, both of the operation indicator lamps will flash.
In this case, install the horizontal vanes correctly by following the procedures 1 to 6.
NOTE: Before installation of the horizontal vanes, disconnect the power supply plug and/ or turn off the breaker.
Upper vane
5
4
6
Stopper
Stopper
Insert this end first.
Insert.
In.
Lock.
Lock.
Upper right
The holes on the
insertion ends of
the upper and lower
horizontal vanes have
different shapes.
Lower vane
Insert this end first.
2
1
3
Insert.
Lower right
Lock.
Lock.
In.
In procedure 2,3,5, and 6, lock the stoppers until they click into place.
11
8-2. Instruction of troubleshooting
Start
Indoor unit
operates.
Outdoor unit
doesn't
Indoor unit
OPERATION INDICATOR
lamp on the indoor unit is
flashing on and off.
doesn't receive
the signal from
remote controller.
operate.
Outdoor unit
doesn't
operate
even in
Test run
operation.
Indoor unit
doesn't operate,
when the
EMERGENCY
OPERATION
switch is pressed.
Indoor unit
Outdoor unit
operates in
only Test run
operation.
operates, when
the EMERGENCY
OPERATION
switch is pressed.
Check room
temperature
thermistor.
Refer to 8-6.
"Test point
diagram and
voltage".
1. Check indoor /
outdoor
Check of
wiring
diagram
of outdoor
unit.
Refer to 8-5. B
"Check of
remote controller
and receiver
P.C. board".
connecting wire.
2. Refer to 8-5. C
"Check of indoor
electronic control
P.C. board".
As for outdoor unit,
refer to service
manual TBH016
Both lamps
Left lamp
4-time flash
Cause:
Indoor unit
• Trouble of
indoor control
system
Left lamp
2-time flash
Cause:
Left lamp
3-time flash
Cause:
Indoor unit
• Trouble of
indoor fan
motor
(Left and right)
Flash on and off at
0.5-second intervals
Indoor unit
• Trouble of room
temperature/
indoor coil
Cause:
Indoor unit
• The horizontal vanes
are not installed
correctly.
thermistor
Check room
temperature
thermistor and
indoor coil thermistor.
Refer to 8-6.
Refer to 8-5.A
"Check of
indoor fan
motor".
Replace the
indoor
electronic
control P.C.
board.
Refer to 8-5. D
"Check of installation
of the horizontal vane".
"Test point diagram
and voltage".
12
8-3. Troubleshooting check table
• The following indication applies regardless of shape of the indicator.
flashing
· Flashing of the OPERATION INDICATOR lamp (on the left)
indicates possible abnormalities.
Operation Indicator
· The OPERATION INDICATOR lamp (on the left) is
lighting during normal operation.
Before taking measures, make sure that the symptom reappears for accurate troubleshooting.
Self check table
Abnormal
point
No.
Indication
Symptom
Detection method
Check point
When the electricity is not conducted to the
safety device (FAN) of the horizontal vane.
• Refer to 8-5. D "Check of
installation of the horizontal
vane".
Both lamps flash at the same time.
0.5-second ON
Indoor unit
and outdoor
unit do not
operate.
Attachment
of the
horizontal
vane
1
0.5-second OFF
• Refer to the characteristics of
indoor coil thermistor and
room temperature thermistor
shown in 8-6.
Detect Indoor coil/room temperature
thermistor short or open circuit every 8
seconds during operation.
Left lamp flashes.
2-time flash
Indoor coil
thermistor
Outdoor unit
does not
operate.
2
Room
tempera-
ture
2.5-second OFF
thermistor
• Refer to 8-5.A "Check of
indoor fan motor".
Indoor fan
When rotational frequency feedback signal is
not emitting during 12-second indoor fan
operation.
motor repeats
12 seconds
ON and 3
Left lamp flashes.
3-time flash
minutes OFF.
When the
indoor fan
Indoor fan
motor.
3
2.5-second OFF
motor breaks,
the fan keeps
stopping.
• Replace the indoor electronic
control P.C. board.
When it cannot properly read data in the
nonvolatile memory of the indoor electronic
control P.C. board.
Left lamp flashes.
4-time flash
Indoor
control
system
Outdoor unit
does not
operate.
4
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.
13
8-4. Trouble criterion of main parts
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
C1
Part name
Room
temperature
thermistor (RT11)
Indoor coil
thermistor
(RT12)
Check method and criterion
Measure the resistance with a tester.
(Part temperature 10°C ~ 30°C)
Figure
Normal
Abnormal
Open or short-circuit
8k" ~ 20k"
Measure the resistance between the terminals with a tester.
(Coil wiring temperature10°C ~ 30°C)
Abnormal
Normal
Color of lead wire
WHT-BLK
299~324"
244~265"
Open or
short-circuit
Indoor fan
motor (MF)
BLK-RED
MAIN
AUX.
INNER FUSE
145i 2: CUT OFF
Measure the voltage Power ON.
FUSE
Color of lead wire
Normal
Abnormal
BLK
RED WHT
BRN-YLW
4.5 ~ 5.5V
(When fan revolved one time)
Remain 0V or 5V
0V
→
5V→0V
YLW-GRY
(Approx.)
Measure the resistance between the terminals with a tester.
(Part temperature10°C ~ 30°C)
RED
ROTOR
Normal
Abnormal
Vane motor
(MV)
YLW
BRN
Open or short-circuit
240 ~ 260"
ORN GRN
14
8-5. Troubleshooting flow
When left OPERATION INDICATOR lamp flashes 3-time.
Indoor fan motor doesn’t operate.
Turn OFF the power supply.
Check connector CN211 visually.
A Check of indoor fan motor
No
No
Yes
Is soldering point of the connector
correctly soldered?
Are lead wires connected?
Yes
Resolder it.
Reconnect the lead wires.
Disconnect lead wires from connector CN211 on the indoor electronic control P.C. board.
Measure resistance between lead wires: No.1 and No.5 and then No.3 and No.5.
Insert screwdriver into air outlet to rotate indoor fan
motor slowly for 1 revolution or over, and measure
voltage No.2(+) and No.3(-) on CN121.
Is resistance 0 (short circuit) or ∞ (open circuit)?
No
Yes ( 0 or
)
(others)
∞
No
Repair the indoor fan motor.
Does voltage repeat 0V DC and 5V DC?
Yes
Replace the indoor electronic control P.C. board.
Indoor unit operates by pressing the EMERGENCY OPERATION switch, but doesn’t 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.
Switch on the remote controller.
No
Replace the batteries.
(Refer to 8-1.4.)
Is LCD display on the remote con-
troller visible?
(not clear)
Yes
Remove batteries, then set them back and
press the RESET button.
Check if the unit operates with remote
controller.
No
Turn on a radio to AM and press switch on
the remote controller.
Does the unit operate with remote
controller?
Yes
OK
No
Is noise heard from radio?
Yes
Replace the remote controller.
Are there any fluorescent lights of
inverter or rapid-start type within the
range of 1m?
● Reinstall the unit away from lights.
● Attach a filter on receiving part.
Yes
No
Measure the voltage between receiver P.C. board connector CN302 No.3(-) and No.5(+)
when the remote controller button is pressed.
Yes
Replace the indoor electronic control
P.C. board
Is the voltage approx. 4V DC?
No(5V or 0V DC)
Replace the power monitor, receiver P.C.board.
15
The unit doesn’t operate with the remote controller.
Also, the OPERATION INDICATOR lamp doesn’t light up by pressing the EMERGENCY OPERATION switch.
CCheck of indoor electronic control P.C. board
MS-GD10ND
MS-GD08/GD12ND
Check both “parts side” and “pattern
side” of the indoor electronic control P.C.
board visually.
3
1
3
1
Turn OFF the power supply.
2
1
L
N
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.
CN201
CN201
F12
L
Terminal
block
N
Does the unit operate with the remote controller?
Does the OPERATION INDICATOR lamp light up by
pressing the EMERGENCY OPERATION switch?
No
Terminal
block
Yes
Turn OFF the
power supply.
Turn OFF the
power supply.
Replace the vane
motor.
Replace the fuse.
Yes
Replace the
indoor electronic
control P.C. board.
Yes
1.Pull out the power
supply cord.
2.Measure the
resistance between
CN201 1 on
the indoor electronic
control P.C. board
and on the
terminal block with
a tester.
No
No
Is the winding
resistance of
vane motor 0 "?
Is fuse(F11) blown?
No
Yes
Is there resistance
approx. 0 "?
Be sure to check both fuse
and varistor in any case.
Be sure to check both resistance.
No(∞)
Is the winding
resistance of
fan motor 0 "?
Is varistor(NR11) burnt?
Yes
No
Replace the fuse (F12).
Yes
Replace the varistor.
Replace the fan
motor.
16
When both OPERATION INDICATOR lamps flash ON and OFF every 0.5-second.
Indoor unit and outdoor unit don’t operate.
D Check of installation of the horizontal vane
Start
Turn OFF the
power supply.
No
Relock the stopper of the
horizontal vane to the indoor unit.
Refer to 8-1-5.
Is the stopper of the horizontal vane
locked to the indoor unit correctly?
Yes
Turn ON the
power supply.
No
Is the OPERATION
OK
INDICATOR lamp flashing?
Yes
To check the continuity of safety device,
Turn OFF the
power supply.
measure the resistance of connector 1- 3
connected to CN1R1 on the indoor
electronic control P.C. board.
No(∞)
Replace the
safety device.
Is there resistance 0 "?
Yes
Replace the
indoor electronic
control P.C. board.
17
8-6. Test point diagram and voltage
C1
MS-GD08ND-
MS-GD10ND-
MS-GD12ND-
C1
C1
Power supply input
220 - 230V AC
Indoor electronic control P.C. board
Fuse 250V AC 3.15A
Indoor fan motor
220 - 230V AC
}
Varistor
(NR12)
Safety device of
fan by horizontal
vane CN1R1
Room temperature
thermistor (RT11)
Varistor
(NR11)
Indoor coil
thermistor (RT12)
J12
Timer short mode
point JPG, JPS
(Refer to 7-1.)
12V
DC
+
–
{
}
J33
Emergency
operation switch
J33
J23
Release of Auto restart function
Solder the Jumper wire to the JR07.
(Refer to 7-3.)
– +
Power monitor, receiver P.C. board
5V DC
Indoor coil thermistor (RT12)
Room temperature thermistor (RT11)
CN302
Temperature (:)
18
9 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
1 Slide the sleeve.
2 Pull the terminal
1 Hold the sleeve, and
pull out the terminal
slowly.
Locking lever
while pushing
the locking lever.
Connector
C1
C1
C1
9.1 MS-GD08ND-
INDOOR UNIT
OPERATING PROCEDURE
MS-GD10ND-
MS-GD12ND-
PHOTOS
1. Removing the panel
Photo 1
(1) Remove the screw caps of the panel.
Remove the screws.
(2) Pull the panel down to your side slightly and unhook the
catches at the top.
Screws of the panel
2. Removing the electronic control P.C. board and the
power monitor, receiver P.C. board
NOTE : In case of removing only indoor electronic control
Photo 2
Terminal block
fixing screw
P.C. board work (3) is not necessary.
(1) Remove the panel. (Refer to 1.)
(2) Remove the power monitor, receiver P.C. board
holder from the bottom of electrical box.
Screw of the
ground wire
Indoor electronic
control P.C. board
(3) Open the power monitor, receiver P.C. board holder and
remove the power monitor, receiver P.C. board.
(4) Remove the screw of the electrical cover and the electrical
cover.
(5) Remove the screw of the V.A. clamp and the V.A. clamp.
(6) Remove the screw of the cord clamp and the cord clamp.
(7) Remove the screw of the terminal block.
(8) Remove the screw of the ground wire.
(9) Pull out indoor electronic control P.C. board slightly.
(10) Disconnect all (except CN125, CN109) the connectors on
the electronic control P.C. board.
Screw of the V.A.
clamp
Screw of the
electrical cover
(11) Remove the electronic control P.C. board.
(12) Disconnect the connector of power monitor, receiver P.C.
board (CN 125, CN109) on the electronic control P.C.
board.
Power monitor, receiver
P.C. board holder
19
OPERATING PROCEDURE
PHOTOS
3. Removing the electrical box
Vane motor
connector
Photo 3
Indoor coil thermistor
connector
(1) Remove the panel. (Refer to 1.)
(2) Remove the electrical cover. (Refer to 2.)
(3) Remove the V.A. clamp. (Refer to 2.)
(4) Remove the cord clamp. (Refer to 2.)
(5) Remove the terminal block. (Refer to 2.)
(6) Remove the screw of ground wire. (Refer to 2.)
(7) Disconnect the connector of the indoor coil thermistor
(CN112), the fan motor connector (CN211 and CN121) and
the vane motor connector (CN151)on the electronic control
P.C. board.
Screw of the
electrical box
(8) Remove the fan motor lead wire and indoor coil thermistor
from the electrical box.
(9) Remove the lead wire of vane motor from the bottom of
electrical box.
(10) Remove the screw fixing the electrical box, remove the
electrical box.
Fan motor connectors
Photo 4
4. Removing the nozzle assembly and the vane motor
(1) Remove the panel. (Refer to 1.)
Screws of the vane motor
(2) Remove the electrical box. (Refer to 3.)
(3) Pull out the drain hose from the nozzle assembly, remove
the nozzle assembly.
(4) Remove the screws of the vane motor, disconnect the
vane motor connector.
(5) Remove the vane motor.
Drain hose
5. Removing the indoor fan motor and the line flow fan
(1) Remove the panel. (Refer to 1.)
Photo 5
(2) Remove the electrical box. (Refer to 3.)
(3) Pull out the drain hose from the nozzle assembly, and
remove the nozzle assembly. (Refer to 4.)
(4) Remove the screw of the lead cover and lead cover.
(5) Release the hooks to open the motor band slightly.
(6) Loosen the hexagon socket set screw from the line flow
fan.
Screws of the
left side of the
heat exchanger
(7) Remove the screws fixing the motor bed, and remove the
fan motor with motor band and the motor bed.
(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 7
Photo 6
Hexagon socket set screw
Screw of
the lead
cover
Screws of
the motor
bed
Hooks of the
motor band
20
TM
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
MITSUBISHI ELECTRIC CONSUMER PRODUCTS (THAILAND) CO., LTD.
New publication, effective Feb. 2008
AMATA NAKORN INDUSTRIAL ESTATE
700/406 MOO 7, TAMBON DON HUA ROH,
AMPHUR MUANG, CHONBURI 20000 THAILAND
Made in Thailand
Specifications subject to change without notice.
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