12. PARTS LIST······················································44
E1E1
E1E1
E1E1
Page 2
Page 3
1
Operation section
Horizontal vane
Air filter
Deodorizing filter
(Gray sponge type)
Vertical vanes
Air inlet
Grille
Remote control
receiving section
Remote controller
Display section
(When the grille is opened)
Operation indicator lamp
Receiving section
Air cleaning filter
(White bellows type)
Emergency operation switch
Front panel
Piping
Air inlet
MU-XV07/09UV: Back only
MU-XV12UV : Back and side
Drain hose
Air outlet
Drain outlet
PART NAMES AND FUNCTIONS
INDOOR UNIT
MS-XV07UV MS-XV09UV -
E1
MS-XV12UV -
E1
E1
OUTDOOR UNIT
MU-XV07UV MU-XV09UV -
E1
MU-XV12UV -
E1
E1
3
Page 4
1
5
1
2
2
1
1
1
1
1
2
3
4
5
6
7
8
9
Installation plate
Installation plate fixing screw 4 x 25 mm
Remote controller holder
Fixing screw for 3 3.5 x 16 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Felt tape (Used for left or left-rear piping)
Deodorizing filter
Air cleaning filter
<Indoor unit>
ACCESSORIES
MS-XV07UV MS-XV09UV -
E1
MS-XV12UV -
E1
REMOTE CONTROLLER
MS-XV07UV MS-XV09UV -
Signal transmitting section
E1
MS-XV12UV -
E1
E1
E1
Operation display section
OPERATE/STOP (ON/OFF) button
ECONO COOL button
POWERFUL COOL button
OPERATION SELECT button
TIMER MODE SELECT button
ON/OFF
I FEEL
COOL
DRYFAN
h
TOO
WARM
ECONO COOL
POWERFUL COOL
SELECT
COOL
VANE
TIMEMODE
RESET
TOO
FAN
4
TEMPERATURE buttons
FAN SPEED CONTROL button
VANE CONTROL button
TIME SET button
RESET button
Remote controller holder
Page 5
2
Indoor model
Function
Power supply
Capacity
Dehumidification
Air flow
(High/Med.W/LowW)
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
Fan motor current
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Air direction
Sound level
(High/Med.W/LowW)
Fan speed(High/Med.W/LowW)
Fan speed regulator
Thermistor RT11(at25:)
Thermistor RT12(at25:)
Outdoor model
Air flow
Compressor motor current
Fan motor current
Model
Output
Winding
resistance(at20:)
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Sound level
Fan speed
Fan speed regulator
Refrigerant filling
capacity(R22)
Refrigerating oil (Model)
kW
R/h
K /h
A
A
W
A(kW)
%
A
A
"
mm
kg
dB(A)
rpm
k"
k"
K /h
A
A
W
"
"
mm
kg
dB(A)
rpm
kg
cc
MS-XV07UV -
E1
Cooling
Single phase
220-240V, 50Hz
2.1
0.8
474/390
W
/306
W
10
3.34-3.19
720-750
—
98-98
19
0.17
2.92-2.80
RC4V19-LA
WHT-BLK 413
BLK-RED 334
850O278O191
9
5
36/31
W
/26
W
960/810W/670
W
3
10
10
MU-XV07UV -
E1
1,452-1,572
2.96-2.80
0.21-0.22
RH-130VGCT
650
C-R 4.18
C-S 5.76
RA6V23-FA
WHT-BLK 353
BLK-RED 321
780o540o255
30
49
710-760
1
0.51
300 (MS56)
MS-XV09UV -
E1
Cooling
Single phase
220-240V, 50Hz
2.5
1.1
504/408
W
/306
W
10
4.68-4.51
1,010-1,040
—
98-96
25
0.17
2.48-2.40
RC4V19-LA
WHT-BLK 413
BLK-RED 334
850O278O191
9
5
39/34
W
/28
W
1,010/840W/670
W
3
10
10
MU-XV09UV -
E1
1,572-1,680
4.30-4.12
0.21-0.22
RH-165VGCT
800
C-R 3.33
C-S 6.01
RA6V23-FA
WHT-BLK 353
BLK-RED 321
780o540o255
30
49
760-810
1
0.55
300 (MS56)
MS-XV12UV -
E1
Cooling
Single phase
220-240V, 50Hz
3.5
1.6
564/474
W
/384
W
10
7.01-7.07
1,480-1,560
—
96-92
35
0.19
2.36-2.24
RC4V19-KA
WHT-BLK 316
BLK-RED 299
850O278O191
9
5
42/37
W
/32
W
1,110/950W/800
W
3
10
10
MU-XV12UV -
E1
1,848-1,980
6.53-6.56
0.29-0.32
RH-231VHAT
1,100
C-R 2.13
C-S 3.91
RA6V33-DA
WHT-BLK 301
BLK-RED 332
780o540o255
33
49
810-840
1
0.72
520 (MS56)
Electrical
data
Fan
motor
Special
remarks
Compressor
Electrical
data
Fan
motor
Special
remarks
Capacity
Coefficient of performance(C.O.P)
Capacity
SPECIFICATION
NOTE: Test conditions are based on ISO5151.
Cooling : Indoor DB27°C / WB19°C
Outdoor DB35°C / WB24°C
Indoor-Outdoor piping length 5m
W Reference value
5
Page 6
3
NOISE CRITERIA CURVES
MS-XV07UV -
E1
NOTCH
High
SPL(dB(A))LINE
36
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
90
80
70
60
50
40
30
MS-XV09UV -
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
NC-70
NC-60
NC-50
NC-40
NC-30
E1
NOTCH
High
SPL(dB(A))LINE
39
90
80
70
NC-70
60
NC-60
50
NC-50
40
NC-40
30
NC-30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
MS-XV12UV -
E1
NOTCH
High
SPL(dB(A))LINE
42
Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
90
80
70
60
50
NC-20
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
MU-XV07UV MU-XV09UV MU-XV12UV -
NC-70
NC-60
NC-50
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
10
631252505001000 2000 4000 8000
NC-20
BAND CENTER FREQUENCIES, Hz
E1
E1
E1
NOTCH
High
SPL(dB(A))LINE
49
Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:
90
80
70
NC-70
60
NC-60
50
NC-50
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
NC-40
NC-30
NC-20
40
30
APPROXIMATE
20
THRESHOLD OF
HEARING FOR
CONTINUOUS
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
NOISE
10
631252505001000 2000 4000 8000
BAND CENTER FREQUENCIES, Hz
6
NC-40
NC-30
NC-20
Page 7
4
OUTLINES AND DIMENSIONS
MS-XV07UV MS-XV09UV -
INDOOR UNIT
278
57
140
E1
E1
Installation plate
Indoor unit
818
850
16562956
17.5
Power supply cord
Lead to right 1.0m
Lead to left 0.3m
82169
41
326326
5
189
Air in
7 or more
100
Air out
67
78
2.5
116.581.5
Wall hole [65
Installation plate
Liquid line [6.35-0.5m
Gas line [9.52-0.43m
{
Insulation [37 O.D
[21 I.D
Drain hose [16
(Connected part O.D)
Insulation [28
Unit: mm
231.5
42
2714.5
Wireless remote controller
MS-XV12UV -
INDOOR UNIT
278
E1
57
140
818
850
Installation plate
17.5
Indoor unit
16562956
Power supply cord
Lead to right 1.0m
Lead to left 0.3m
41
Air in
82
326326
189
or more
7
100
Air out
67
78
169
5
Installation plate
Liquid line [6.35-0.5m
Gas line [12-0.43m
{
Insulation [37 O.D
[21 I.D
Drain hose [16
(Connected part O.D)
Insulation [28
231.5
42
2.5
116.581.5
Wall hole [65
2714.5
Wireless remote controller
7
Page 8
320
25
43-
35-
155
90
104
74
260
10
780
500
122
40
540
320
285
255
Service panel
Gas refrigerant
pipe joint
Refrigerant pipe
(flared) [9.52 (MU-XV07/09UV
The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions,
since operating conditions vary according to the areas where these units are installed. The following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.
(1) GUARANTEED VOLTAGE
198 ~ 264V, 50Hz
(2) AIR FLOW
Air flow should be set at MAX.
(3) MAIN READINGS
(1) Indoor intake air wet-bulb temperature :°CWB
(2) Indoor outlet air wet-bulb temperature :°CWB
(3) Outdoor intake air dry-bulb temperature :°CDB
(4) Total input:W
Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page shows the difference between the
indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.
How to measure the indoor air wet-bulb/dry-bulb temperature difference
1. Attach at least 2 sets of wet and dry-bulb thermometers to the indoor air intake as shown in the figure, and at least 2 sets
of wet and dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air
speed is high.
2. Attach at least 2 sets of wet and dry-bulb thermometers to the outdoor air intake.
Cover the thermometers to prevent direct rays of the sun.
3. Check that the air filter is cleaned.
4. Open windows and doors of the room.
5. Press the EMERGENCY OPERATION switch once to start the EMERGENCY COOL MODE.
6. When system stabilizes after more than 15 minutes, measure temperature and take an average temperature.
7. 10 minutes later, measure temperature again and check that the temperature does not change.
8.4
7.7
7.1
6.4
5.7
5.1
INDOOR UNIT
Wet and dry-bulb
thermometers
9.7
12.8
8.8
11.6
8.0
10.5
7.3
9.5
6.5
8.5
5.8
7.5
OUTDOOR UNIT
Wet and dry-bulb
thermometers
MS-XV07UV - E1
MS-XV09UV - E1
MS-XV12UV - E1
12
Page 13
OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
220V
240V
18
15
20
50
2560 30 32
70(%)
35(:)
3.0
3.5
4.0
4.5
5.0
18
1520
50
25
60
30 32
70(%)
35(:)
0.3
0.4
0.5
0.6
0.7
220-240V
7
6
5
4
3
7
6
5
4
3
1832
1520
50
25
60
30
70(%)
35(:)
0.3
0.4
0.5
0.6
0.7
220-240V
1520
50
25
603070(%)
35(:)
1.5
2.0
2.5
3.0
3.5
32
18
220V
240V
1520
50
25
60
30
70(%)
35(:)
3
4
5
6
7
1832
240V
220V
1520
50
25
603070(%)
35(:)
0.3
0.4
0.5
0.6
0.7
1832
220-240V
7
6
5
4
3
COOL operation
1 Both indoor and outdoor unit are under the same temperature/humidity condition.
Dry-bulb temperature
20
25
3070
2 Air flow should be set at MAX.
3 The unit of pressure has been changed to MPa on the international system of units(SI unit system).
The conversion factor is : 1(MPa [Gage]) =10.2(kgf/ff[Gage])
NOTEQ : Total capacity (kW)SHF : Sensible heat factorDB : Dry-bulb temperature
SHC : Sensible heat capacity (kW)INPUT : Total power input (W)WB : Wet-bulb temperature
25
Page 26
8
COOL mode of
"I FEEL CONTROL"
DRY mode of
"I FEEL CONTROL"
Initial room temperature
25: or more
more than 13:,
less than 25:
Mode
Signal transmitting section
Operation display section
TEMPERATURE buttons
VANE CONTROL button
TIME SET button
RESET button
FAN SPEED CONTROL button
ECONO COOL button
POWERFUL COOL button
OPERATION SELECT button
TIMER MODE SELECT button
OPERATE/STOP (ON/OFF) button
Remote controller holder
Approx. 2 :
or more
Difference
between set
temperature
and room
temperature
Approx. 2 :
or less
This shows that the
air conditioner is
operating to reach
the target temperature.
Please wait until the
target temperature is
obtained.
This shows that the
room temperature is
approaching the
target temperature.
Operation stateIndication
lighted
not lighted
•The following indication applies regardless of shape of the indicator.
Operation Indicator
MICROPROCESSOR CONTROL
MS-XV07UV MS-XV09UV -
E1
MS-XV12UV -
E1
E1
WIRELESS REMOTE CONTROLLER
Once the operation mode are set, the same operation mode
can be repeated by simply turning the OPERATE/STOP
(ON/OFF) button ON. Indoor unit receives the signal with a
beep tone.
When the system turns off, 3-minute time delay will operate to
protect system from overload and compressor will not restart
for 3 minutes.
8-1. “I FEEL CONTROL” () OPERATION
(1) Press OPERATE/STOP(ON/OFF) button on the remote
controller. OPERATION INDICATOR lamp of the indoor
unit turns on with a beep tone.
(2) Select “I FEEL CONTROL”() mode with the OPERA-
TION SELECT button.
(3) The operation mode is determined by the room tempera-
ture at start-up of the operation.
INDOOR UNIT DISPLAY SECTION
Operation Indicator lamp
The operation indicator at the right side of the indoor unit
indicates the operation state.
● Once the mode is fixed, the mode does not change by
room temperature afterwards.
● Under the ON-TIMER () operation, mode is deter-
mined according to the room temperature at set time the
operation starts.
● When the system is stopped on the remote controller
and restarted within 2 hours in “I FEEL CONTROL” ()
mode, the system operates in previous mode automatically regardless of the room temperature.
Operation time chart
Example
Previous operation
COOL mode of
“I FEEL CONTROL”
Restart
COOL mode of
“I FEEL CONTROL”
or COOL mode
When the system is restarted after 2 hours and more,
the operation mode is determined by the room temperature at start-up of the operation.
Operation time chart
Example
Previous operation
COOL mode of
“I FEEL CONTROL”
or COOL mode
Restart
COOL or DRY mode of
“I FEEL CONTROL”
that determined by
room temperature at
start-up of the operation.
26
Page 27
(4) The initial set temperature is decided by the initial room temperature.
TOO
COOL
TOO
WARM
Mode
COOL mode of
"I FEEL CONTROL"
DRY mode of
"I FEEL CONTROL"
Initial room temperature
26: or more
25: to 26:
more than 13:, less than 25:
Initial set temperature
24:
❈1
Initial room temperature
minus 2:
Initial room temperature
minus 2:
❈1 When the system is restarted with the remote controller, the system operates with the previous set temperature regard-
less of the room temperature at restart.
The set temperature is calculated by the previous set temperature.
(5) TEMPERATURE buttons
In “I FEEL CONTROL” () mode, set temperature is decided by the microprocessor based on the room temperature.
In addition, set temperature can be controlled by TOO WARM or TOO COOL buttons when you feel too cool or too
warm. Each time the TOO WARM or TOO COOL button is pressed, the indoor unit receives the signal and emits a
beep tone.
● Fuzzy control
When the TOO COOL or TOO WARM button is pressed, the microprocessor changes the set temperature, considering
the room temperature, the frequency of pressing TOO COOL or TOO WARM button and the user’s preference to heat
or cool. So this is called “Fuzzy control”, and works only in “I FEEL CONTROL” mode.
In DRY mode of “I FEEL CONTROL”, the set temperature doesn’t change.
…
To raise the set temperature 1~2 degrees (°C)
…
To lower the set temperature 1~2 degrees (°C)
8-1-1. COOL mode of “I FEEL CONTROL”
1. Indoor fan speed control
Indoor fan operates continuously at the set speed by FAN SPEED CONTROL button regardless
of thermostat’s OFF-ON.
In Auto the fan speed is as follows.
Initial temperature difference
Fan speed
Room temperature minus set temperature : 1.7 degrees or more·····························High
Room temperature minus set temperature : Between 1 and 1.7 degrees·················Med.
Room temperature minus set temperature : less than 1 degree································Low
2. Coil frost prevention
1 Temperature control
When the indoor coil thermistor RT12 reads 4°C or below(MS-XV07/09UV) / 0°C or below(MS-XV12UV) for 5 minutes, the
coil frost prevention mode starts.
The indoor fan operates at the set speed and the compressor stops for 5 minutes.
After that, if RT12 still reads below 4°C(MS-XV07/09UV) / 0°C(MS-XV12UV), this mode is prolonged until the RT12 reads
over 4°C (MS-XV07/09UV) / 0°C(MS-XV12UV).
2 Time control
When the three conditions as follows have been satisfied for 1 hour and 45 minutes, the compressor stops for 3 minutes.
The indoor fan operates at the set speed.
a. Compressor has been continuously operating.
b. Indoor fan speed is Low or Med.
c. Room temperature is below 26°C.
When compressor stops, the accumulated time is cancelled. When compressor restarts, time counting starts from the
beginning.
Time counting also stops temporarily when the indoor fan speed becomes High or the room temperature exceeds
26°C. However, when two of the above conditions (b.and c.) are satisfied again, time accumulation is resumed.
Difference between room
temperature and set temperature during operation
1.7 deg.
1 deg.
3 deg.
27
Page 28
Operation chart
35
30
25
20
15
10
:
10 15 20 25 30 35
Set temperature
Initial room temperature
Set temperature and
initial room temperature in dry mode
:
Example
ON
ON
Compressor
Outdoor fan
Indoor fan
OFF
ON
( continuously at set speed)
OFF
8-1-2. DRY mode of “I FEEL CONTROL”
The system for dry operation uses the same refrigerant circuit as the cooling circuit.
The compressor and the indoor fan are controlled by the room temperature.
1. Indoor fan speed control
Indoor fan operates at the set speed by FAN SPEED CONTROL button .
In Auto fan speed becomes Low.
2. The operation of the compressor and indoor / outdoor fan
Compressor operates by room temperature control and time control.
Set temperature is controlled to fall 2°C from initial room temperature.
Indoor fan and outdoor fan operate in the same cycle as the compressor.
● When the room temperature is 23°C or over:
When the thermostat is ON, the compressor repeats 8 minutes ON and 3 minutes OFF.
When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON.
● When the room temperature is under 23°C.
When the thermostat is ON, the compressor repeats 2 minutes ON and 3 minutes OFF.
When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON.
Operation time chart
Example
Thermostat
OFF
ON
OFF
ON
OFFOFF
OFF
ON
ON
3 min.
ON
OFF
ON
OFF
4 min.
ON
Indoor fan
ON
Outdoor fan
Compressor
3. Coil frost prevention
The operation is as same as coil frost prevention during COOL mode of “I FEEL CONTROL” operation.(Refer to 8-1-1.
COOL mode of “I FEEL CONTROL”- 2. Coil frost prevention)
However when coil frost prevention works while the indoor fan is OFF,
it’s speed becomes set speed.
lamp of the indoor unit turns on with a beep tone.
(2) Select COOL mode with the OPERATION SELECT button.
(3) Press TEMPERATURE buttons (TOO WARM or TOO COOL button)
to select the desired temperature.
The setting range is 16 ~ 31°C.
1. Indoor fan speed control
Indoor fan speed control is as same as COOL mode of “I FEEL CONTROL”.(Refer to 8-1-1. COOL mode of I FEEL CONTROL”- 1. Indoor
fan speed control)
2. Coil frost prevention
Coil frost prevention is as same as COOL mode of “I FEEL CONTROL”.(Refer to 8-1-1. COOL mode of I FEEL CONTROL”- 2. Coil frost
prevention)
28
Page 29
8-3. DRY () OPERATION
High
Med.
Low
High
(1) Press OPERATE/STOP(ON/OFF) button.
OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone.
(2) Select DRY mode with the OPERATION SELECT button.
(3) The microprocessor reads the room temperature and determines the set temperature. Set temperature is as shown on
the right chart.
(4) DRY operation will not function when the room temperature is 13°C or below.
1. Indoor fan speed control
Indoor fan speed control is as same as DRY mode of “I FEEL CONTROL”.(Refer to 8-1-2. DRY mode of I FEEL
CONTROL”- 1. Indoor fan speed control)
2. The operation of the compressor and indoor / outdoor fan
The operation of the compressor and indoor / outdoor fan is as same as DRY mode of “I FEEL CONTROL”.(Refer to 8-1-2.
DRY mode of I FEEL CONTROL”- 2. The operation of the compressor and indoor / outdoor fan)
3. Coil frost prevention
Coil frost prevention is as same as DRY mode of “I FEEL CONTROL”.(Refer to 8-1-2. DRY mode of I FEEL CONTROL”
- 3. Coil frost prevention)
8-4. FAN () OPERATION
(1) Press OPERATE/STOP(ON/OFF) button. OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone.
(2) Select FAN mode with the OPERATION SELECT button.
(3) Select the desired fan speed. When AUTO, it becomes Low.
Only indoor fan operates.
Outdoor unit does not operate.
8-5. FAN MOTOR CONTROL
(1) Rotational frequency feedback control
The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the microprocessor to feedback
the rotational frequency. Comparing the current rotational frequency with the target rotational frequency (High,Med.,Low),
the microprocessor controls SR141 and adjusts fan motor electric current to make the current rotational frequency close
to the target rotational frequency. With this control, when the fan speed is switched, the rotational frequency changes
smoothly.
(2) Fan motor lock-up protection
When the rotational frequency feedback signal is not output for 12 seconds, (or when the microprocessor cannot detect
the signal for 12 seconds) the fan motor is regarded locked-up. Then the electric current to the fan motor is shut off. 3 minutes later, the electric current is applied to the fan motor again. During the fan motor lock-up, the OPERATION INDICATOR lamp flashes on and off to show the fan motor abnormality. (Refer to page 35.)
8-6. AUTO VANE OPERATION
(1) Vane motor drive
These models are equipped with a stepping motor for the horizontal vane. The rotating direction, speed, and angle of
the motor are controlled by pulse signals (approx. 12V) transmitted from indoor microprocessor.
(2) The horizontal vane angle and mode changes as follows by pressing the VANE CONTROL button.
(3) Positioning
The vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle.
Confirming of standard position is performed in case of follows.
(a) When the OPERATE / STOP(ON / OFF) button is pressed (POWER ON/OFF).
(b) When the vane control is changed from AUTO to MANUAL.
(c) When the SWING is finished.
(d) When the test run starts.
(e) When the power supply turns ON.
29
Page 30
(4) VANE AUTO () mode
In VANE AUTO mode, the microprocessor automatically determines the vane angle to make the optimum room-temperature distribution.
1 In COOL and DRY operation
Vane angle is fixed to Angle 1.
2 In FAN operation
Vane angle is fixed to Angle 4.
(5) STOP (operation OFF) and ON-TIMER standby.
When the following cases occur, the vane returns to the closed position.
(a) When the OPERATE/STOP (ON/OFF) button is pressed (POWER OFF).
(b) When the operation is stopped by the emergency operation.
(c) When the ON-TIMER is on standby.
(6) Dew prevention
During COOL or DRY operation at Vane Angle 4 or 5 when the cumulative operation time of compressor exceeds 1
hour, the vane angle automatically changes to Angle 1 for dew prevention.
(7) SWING MODE ()
By selecting SWING mode with the VANE CONTROLbutton, the horizontal vane swings vertically. The remote controller
displays “”.
When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher than that in
COOL mode.
Also the horizontal vane swings in various cycle according to the temperature of indoor heat exchanger (RT12).
SWING operation makes you feel cooler than set temperature. So, even though the set temperature is higher than that
in COOL mode, the air conditioner can keep comfort. As a result, energy can be saved.
ECONO COOL operation is cancelled when the ECONO COOL button is pressed once again or VANE CONTROL button is pressed or change to other operation mode.
NOTE : ECONO COOL operation not work in COOL mode of “I FEEL CONTROL”.
SWING operation
In swing operation of ECONO COOL operation air flow is initially blew out upward(levelly).
According to the temperature of indoor coil thermistor RT12 at starting of this operation, next downward blow time is
decided. Then when the downward blow has been finished, next upward blow time is decided.
For initial 10 minutes the swing operation is performed in table G~H for quick cooling(but G : RT 12 is 24: or less).
Also, after 10 minutes when the difference of set temperature and room temperature is more than 2 degrees, the swing
operation is performed in table D~H for more cooling(but D: RT12 is 20: or less).
The air conditioner repeats the swing operation in various cycle as follows.
Temperature of indoor
coil thermistor RT12
A
B
C
D
E
F
G
H
15°C or less
15°C to 17°C
17°C to 18°C
18°C to 20°C
20°C to 21°C
21°C to 22°C
22°C to 24°C
more than 24°C
Downward blow time
(sec.)
2
5
8
11
14
17
20
23
Upward(level) blow time
(sec.)
23
20
17
14
11
8
5
2
30
Page 31
(9) POWERFUL COOL () mode
TOO
COOL
TOO
WARM
TIME
SELECT
TIME
SELECT
3
h
7
h
TIME
SELECT
SELECT
EMERGENCY OPERATION switch
Press once <Cool>
Press once again <Stop>
OPERATION INDICATOR lamp
• The following indication applies
regardless of shape of the indicator.
When the POWERFUL COOL button is pressed in COOL mode, the fan speed and the set temperature are automatically adjusted.
Operation becomes POWERFUL COOL mode.
POWERFUL COOL mode is automatically released 15 minutes after operation starts, and the operation mode returns to
the mode prior to POWERFUL COOL operation .
POWERFUL COOL mode is also cancelled when the POWERFUL COOL button is pressed once again, OPERATE /
STOP (ON/OFF) button is pressed, FAN SPEED CONTROL button is pressed, ECONO COOL button is pressed in
COOL mode, ON-TIMER is set or change to other operation mode.
NOTE1. :The and button are not available during the POWERFUL COOL operation.
2 : The VANE CONTROL button is available.
8-7. TIMER OPERATION
1. How to set the timer
(1) Press the OPERATE/STOP (ON/OFF) button to start the air conditioner.
(2) Press the TIMER MODE SELECT button
“”(OFF TIMER) ➔ “”(ON TIMER) ➔ TIMER RELEASE
Each time this button is pressed, the timer mode is changed in sequence.
(3) Press the TIME SET button (
) to set the timer.
Each time this button is pressed, the set time increases by 1 hour to 12 hours.
NOTE 1 : Be sure to place the remote controller at the position where its signal can reach the air conditioner even during
TIMER operation.
NOTE 2 : Reset the timer in the following cases, or the set time may deviate and other malfunctions may occur.
• Apower failure occurs.
• The circuit breaker functions.
NOTE 3 : The OFF TIMER and ON TIMER can not be set at the same time.
()to select the operation.
(Example 1) Setting to stop the air conditioner 3 hours later.
1 Press the “” button to select the “”
(OFF TIMER).
2 Press the “” button to set the “3h”.
(Example 2) Setting to operate the air conditioner 7 hours later.
1 Press the “” button to select the “”
(ON TIMER).
2 Press the “” button to set the “7h”.
2. Cancel
Press the “” button until “”
(OFF TIMER) and “”(ON TIMER) are not displayed.
8-8. EMERGENCY-TEST OPERATION
In case of test run operation or emergency operation, use the EMERGENCY OPERATION switch on the front of the
indoor unit. Emergency operation is available when the remote controller is missing, has failed or the batteries of remote
controller run down. The unit will start and the OPERATION INDICATOR lamp will light.
The first 30 minutes of operation is the test run operation. This operation is for servicing. The indoor fan speed runs at
High speed and the system is in continuous operation. (The thermostat is ON.)
After 30 minutes of test run operation the system shifts to EMERGENCY COOL MODE with a set temperature of 24°C.
The fan speed shifts to Med. speed.
The coil frost prevention works even in emergency operation.
In the test run or emergency operation, the horizontal vane operates in VANE AUTO () mode.
Emergency operation continues until the EMERGENCY OPERATION switch is pressed again or the unit receives any signal from the remote controller. In case of latter normal operation will start.
NOTE : Do not press the EMERGENCY OPERATION switch during normal operation.
31
Page 32
9
No. 1 unit
No. 2 unit
No. 3 unit
No. 4 unit
1 unit operation
No modification
–
–
–
2 units operation
Same as at left
Solder J1
–
–
3 units operation
Same as at left
Same as at left
Solder J2
–
4 units operation
Same as at left
Same as at left
Same as at left
Solder both J1 and J2
SERVICE FUNCTIONS
MS-XV07UV MS-XV09UV -
E1
MS-XV12UV -
E1
E1
9-1. 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 page 39.)
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.)
9-2. 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 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 push 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, push the RESET button.
Table 1
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.
32
Page 33
9-3. AUTO RESTART FUNCTION
When the indoor unit is controlled with the remote controller, the operation mode, the 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 the
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.
How to set “AUTO RESTART FUNCTION”
1 Turn off the main power for the unit.
2 Pull out the indoor electronic control P.C. board and the display P.C.board. (Refer to page 40.)
3 Cut the RESISTOR JR07 on the indoor electronic control P.C. board. (Refer to page 39.)
Operation
1 If the main power (220-240V AC) has been cut, the operation settings remain.
2 After 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.)
C11
CN211
CN111
CN1R1
SW1
CN112
CN121
CN151
BZ
C112
52C
CN201
IC101
CN1J1
JR07
NOTE
•The operation settings are memorized when 10 seconds have passed after the remote controller was operated.
•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 works as the
power button of the remote controller is off.
•To prevent breaker off due to the rush of starting current, systematize other home appliance 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.
33
Page 34
10
Lead wiring
Housing point
RESET button
Insert the negative pole
of the batteries first.
Check if the polarity of
the batteries are correct.
TROUBLESHOOTING
MS-XV07UV MS-XV09UV -
E1
MS-XV12UV -E1MU-XV07UV -
E1
MU-XV09UV -
E1
MU-XV12UV -
E1
E1
10-1. 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 first turn off the remote controller to stop the unit, 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.
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 check 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 discoloration.
4) When troubleshooting, refer to the flow chart and the check table on page 35.
4. How to replace batteries
Weak batteries may cause the remote controller malfunction.
In this case, the remote controller can be repaired only by the battery replacement. To operate the remote controller nor-
mally, replace the batteries in the following order.
This remote controller has the RESET button. After refilling new batteries, press the RESET button with tip end of ball
point pen or the like, and then use the remote controller.
1 Remove the back lid and replace batteries.
Then re-attach the back lid.
NOTE : If the RESET button is not pressed, the remote controller may not operate correctly.
2 Press the RESET button.
34
Page 35
10-2. Instruction of troubleshooting
Start
Indoor unit
operates.
Outdoor unit
doesn't operate.
Indoor unit
doesn't receive
the signal from
remote controller.
OPERATION INDICATOR
lamp on the indoor unit is
flashing on and off.
Outdoor unit
operates in
only Test Run
operation.
Outdoor unit
doesn't
operate
even in
Test Run
operation.
Indoor unit
operates, when
the EMERGENCY
OPERATION
switch is pressed.
Indoor unit
doesn't operate,
when the
EMERGENCY
OPERATION
switch is pressed.
Check room
temperature
thermistor.
Refer to
"Test point
diagram and
voltage" on
page 39.
Refer to D
"Check of
outdoor unit"
on page 38.
Refer to B
"Check of
remote controller
and receiver
P.C. board"
on page 37.
1. Check indoor /
outdoor
connecting wire.
2. Refer to C
"Check of indoor
electronic control
P.C. board"
on page 38.
2-time flash
Cause:
Indoor unit
• Trouble of
room temp erature/
indoor coil
thermistor
3-time flash
Cause:
Indoor unit
• Trouble of
indoor fan
motor
Check room
temperature
thermistor and
indoor coil
thermistor.
Refer to "Test
point diagram
and voltage" on
page 39.
Refer to A
"Check of
indoor fan
motor"
on page 37.
Operation Indicator
· 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.
•The following indication applies regardless of shape of the indocator.
1. Troubleshooting check table
❈ Before taking measures, make sure that the symptom reappears, for accurate troubleshooting.
Self check table
Abnormal
NO.
point
Indoor coil
thermistor
1
Room
temperature thermistor
Indoor fan
2
motor
2-time flash
2.5-second OFF
3-time flash
Indication
2.5-second OFF
Symptom
Outdoor unit
does not run.
Indoor fan motor
repeats 12 seconds ON and 3
minutes OFF.
When the indoor
fan motor
breaks, the fan
keeps stopping.
35
Detect method
Detect Indoor coil/room temperature thermistor short or
open circuit every 8 seconds
during operation.
When rotational frequency
feedback pulse signal is not
emit during 12-second indoor
fan operation.
Check point
● Check resistance of thermistor.
● Re-connect connector.
● Check indoor electronic control P.C.board.
● Disconnect connector CN211 and then
check connector CN121 - to make
sure rotational frequency feedback signal
of 1.5V or over exists.
● Check indoor electronic control P.C.
board.
● Check indoor fan motor.
● Re-connect connector.
2
3
Page 36
FUSE
BLK
RED
WHT
GRY
YLW
BRN
MAIN
AUX.
RED
YLW
BRN
ORN
GRN
ROTOR
2. Trouble criterion of main parts
WHTRED
BLK
MAIN
AUX.
FUSE
P
R
C
S
RED
BLK
WHT
MAINAUX.
MS-XV07UV MS-XV09UV -
E1
MS-XV12UV -E1MU-XV07UV -
E1
Part name
Room
temperature
thermistor (RT11)
Measure the resistance with a tester.
(Part temperature 10°C ~ 30°C)
Indoor coil
thermistor
(RT12)
Compressor
(MC)
INNER
PROTECTOR
150i5: ON
90i10: OFF
Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)
Color of
lead
wire
C-R
C-S
Measure the resistance between the terminals with a tester.
(Coil wiring temperature10°C ~ 30°C)
Color of
lead wire
Indoor fan
motor (MF)
INNER FUSE
136i3: CUT OFF
Motor partSensor part
WHT-BLK
BLK-RED
Measure the voltage Power ON.
Normal
8kΩ ~ 20kΩ
MU-XV07UV
3.68 ~ 4.51Ω
5.08 ~ 6.22Ω
MS-XV07/09UV
396 ~ 430Ω
320 ~ 348Ω
Color of lead wire
BRN-YLW
YLW-GRY
(When fan revolved one time)
E1
MU-XV12UV -
MU-XV09UV -
E1
Check method and criterion
Open or short-circuit
Normal
MU-XV09UV
2.93 ~ 3.60Ω
5.30 ~ 6.49Ω
MU-XV12UV
1.87 ~ 2.30Ω
3.44 ~ 4.22Ω
Normal
MS-XV12UV
303 ~ 329Ω
287 ~ 311Ω
Normal
4.5 ~ 5.5V
0V➔5V➔0V
(Approx.)
E1
Figure
Abnormal
Abnormal
Open or
short-circuit
Abnormal
Open or
short-circuit
Abnormal
Remain 0V or 5V
Outdoor fan
motor (MF)
INNER FUSE
163i3: CUT OFF
Vane motor
(MV)
Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)
Color of
lead wire
WHT-BLK
BLK-RED
BLK-YLW
MU-XV07/09UV
311 ~ 381Ω
283 ~ 347Ω
–
Normal
MU-XV12UV
265 ~ 325Ω
292 ~ 359Ω
–
Measure the resistance between the terminals with a tester.
(Part temperature 10°C ~ 30°C)
Normal
282 ~ 306Ω
Abnormal
Open or short-circuit
Abnormal
Open or short-
circuit
PP
:INNER PROTECTOR
36
Page 37
When OPERATION INDICATOR lamp flashes 3-time.
Indoor fan motor doesn’t operate.
A
Check of indoor fan motor
Turn OFF the power supply.
Check connector CN211 visually.
No
Re-connect the lead wires.
Are lead wires connected?
Disconnect lead wires from connector CN211 on indoor electronic control P.C. board.
Measure resistance between lead wires No.1 and No.5 and then No.3 and No.5.
Is resistance 0 (short circuit) or ∞ (open circuit)?
Repair or replace the indoor fan motor.
Yes
Yes ( 0 or ∞ )
Is soldered point of the connector
correctly soldered?
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
No
(others)
voltage No.2(+) and No.3(-) on CN121.
No
Does voltage repeat 0V DC and 5V DC?
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.
Check of remote controller and receiver P.C. board
B
Switch on the remote controller.
wCheck the remote controller is exclusive
for this air conditioner.
No
Yes
Re-solder it.
Yes
Is LCD display on the remote controller visible?
Yes
Remove 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?
Yes
OK
Measure the voltage between receiver P.C. board connector CN302 No.3
button is pressed.
No
(not clear)
No
Replace the batteries.(Refer to page 34.)
Turn on a radio to AM and press switch on
the remote controller.
Is noise heard from radio?
Yes
Are there any fluorescent lights of
inverter or rapid-start type within
the range of 1m?
No
(–)
and No.5
Is the voltage approx. 4V DC?
No(5V or 0V DC)
Replace the receiver P.C. board.
No
Yes
(+)
when the remote controller
Yes
Replace the remote controller.
• Re-install the unit away from lights.
• Attach a filter on receiving part.
Replace the indoor electronic control
P.C. board.
37
Page 38
Check the both “parts side” and “pattern
side” of indoor electronic control P.C.
board visually.
Replace the fuse.
Is fuse(F11) blown?
Be sure to check both fuse
and varistor in any case.
Replace the fan motor.
Replace the
indoor electronic
control P.C. board.
Is winding resistance
of fan motor 0 "?
Is winding resistance
of vane motor 0 "?
No
Yes
Replace the vane motor.
No
Yes
Yes
Is varistor(NR11) burnt?
Replace the varistor.
Yes
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.
No
No
Does the unit operate with the remote controller?
Does the OPERATION INDICATOR lamp light up
by pressing the EMERGENCY OPERATION switch?
Yes
No
Measure the
resistance between
CN201
1on the
indoor electronic
control P.C. board
and
N on the terminal
block with the tester.
Is resistance approx. 0"?
Replace the fuse (F12).
CN201
1
2
L
N
F12
1
3
Terminal
block
Be sure to check both resistances.
No (∞)
Yes
Turn OFF the
power supply.
Turn OFF the
power supply.
The unit doesn’t operate with the remote controller.
Turn ON the power supply.
No
Press the EMERGENCY OPERATION switch.
3-minute time delay works.
Test run operation operates for 30 minutes.
Yes
Is there 220-240V AC between
2-N
on the outdoor terminal block
.
Yes
Outdoor unit doesn't
operate.
Is the connection of wiring
in outdoor unit correct?
Check the outdoor
fan motor and compressor.
Rectify the outdoor
connecting wire.
No
Rectify the indoor/outdoor
connecting wire.
Yes
Check the indoor electronic
control P.C. board.
Compressor
doesn't operate.
No
Yes
Is the connection of wiring
from terminal block to
compressor correct ?
Check the compressor.
Refer to page 36.
Rectify the connecting
wire from terminal block
to compressor.
Outdoor fan motor
doesn't operate.
No
Yes
Is the connection of wiring
from terminal block to
outdoor fan motor correct ?
Check the outdoor fan motor.
Refer to page 36.
Rectify the connecting
wire from terminal block
to outdoor fan motor.
No
Does outdoor unit operate?
Yes
Ok
No
Does outdoor unit operate?
Ok
Yes
Does outdoor unit operate?
Ok
Yes
No
No
Is there 220-240V AC between 2-N
on the indoor terminal block
.
Also, the OPERATION INDICATOR lamp doesn’t light up by pressing the EMERGENCY OPERATION switch.
Check of indoor electronic control P.C. board
C
Compressor and / or outdoor fan motor doesn’t operate.
D
Check of outdoor unit
38
Page 39
TEST POINT DIAGRAM AND VOLTAGE
0
0
10
20
30
40
10 20 30 40 50 60
MS-XV07UV MS-XV09UV -
E1
MS-XV12UV -
E1
Indoor electronic control P.C. board
CN201
E1
Power supply input
220-240V
}
Fuse 250V AC 3.15A
Fan motor
power supply
}
Varistor (NR11)
CN111
Room temperature
thermistor (RT11)
CN112
Indoor coil
}
12V DC
5V DC
Power monitor, receiver P.C. board
+
–
}
JPGND
J205
–
+
Indoor coil thermistor (RT12)
Room temperature thermistor (RT11)
)
''
thermistor (RT12)
Timer short
mode point (JPG, JPS)
(Refer to page 32.)
Emergency
operation switch
Vane motor power
supply (CN151)
CN302
Auto restart function
Cut the Resistor JR07.
(Refer to page 33.)
39
Resistance (k
Temperature (;;)
Page 40
11
DISASSEMBLY INSTRUCTIONS
<"Terminal with lock mechanism" Detaching points>
In case of terminal with lock mechanism, detach the terminal as shown below.
There are two types ( Refer to (1) and (2)) of the terminal with lock mechanism.
The terminal with no lock mechanism can be removed by pulling it out.
Check the shape of the terminal and work.
(1) Slide the sleeve and check if there is a locking lever or not.(2) The terminal with this connector is a terminal
Sleeve
with lock mechanism.
1Slide the sleeve.
2Pull the terminal while
Locking lever
pushing the locking
lever.
11-1. MS-XV07UV -MS-XV09UV -MS-XV12UV -
INDOOR UNIT
OPERATING PROCEDUREPHOTOS
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.
1Hold the sleeve, and
pull out the terminal
slowly.
Connector
E1E1E1
Photo 1
Front panel
Screws
2. Removing the electronic control P.C. board and the
power monitor, receiver 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 V.A. clamp.
(4) Remove the cord clamp.
(5) Remove the screw of the terminal block.
(6) Remove the screw of the ground wire.
(7) Disconnect all the connectors and all the lead wires on the
electronic control P.C. board.
(8) Remove the R.L holder.
(9) Remove the electronic control P.C. board.
(10)
Open the R.L holder and the power monitor, receiver P.C.
board.
40
Photo 2
Screw of the
V.A. clamp
Screw of the ground wire
Power monitor,
receiver P.C.
board
Fan motor connector
Terminal block
cover
Room temperature
thermistor connector
Indoor electronic
control P.C. board
Vane motor
connector
Cord clamp
R.L holder
Page 41
OPERATING PROCEDUREPHOTOS
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 screw of ground 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, remove the
electrical box.
4. Removing the vane 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, remove
the nozzle assembly.
(4) Remove the screws (both upper and lower) of the vane
motor, disconnect the connector.
(5) Remove the vane motor.
Photo 3
Photo 4
Screw of the ground wire
Screw of the
electrical box
Screws of
the vane
motor
Drain hose
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, remove
the nozzle assembly.
(4) Remove the hexagon socket set screw from the line flow
fan.
(5) Remove the screws fixing the fan motor, remove the fan
motor.
(6) Remove the screws fixing the left side of the heat
exchanger.
(7) Lifting the left side of the heat exchanger.
(8) Remove the line flow fan.
Vane motor
Photo 5
Screws fixing the left
side of the
heat
exchanger
Photo 6
Indoor coil
thermistor
41
Screws of the fan motor
Page 42
11-2. MU-XV07UV -MU-XV09UV -MU-XV12UV -
OUTDOOR UNIT
NOTE: These photos use MU-XV12UV- .
MU-XV07UV- or MU-XV09UV- is almost the same as MU-XV12UV- .
E1
OPERATING PROCEDUREPHOTOS
E1E1E1
E1E1E1
1. Removing the cabinet
(1) Remove the screws of the top panel.
(2) Remove the screws of the service panel.
(3) Remove the screws of the cabinet.
(4) Remove the screws of the front panel and motor support.
(5) Remove the service panel, and remove the screw from
the insides.
(6) Remove the top panel.
(7) Remove the cabinet.
Photo 3
Screws of the
service panel
Screw of the
top panel
Service
panel
Photo 1
Screws
of the
cabinet
Photo 2
Screws of the front panel
and motor support
Screws of the cabinet
Screws of
the top panel
2. Removing the electrical parts
(1) Remove the service panel and the cabinet.(Refer to 1)
(2) Remove the following parts.
•Compressor capacitor (C1)
•Outdoor fan capacitor (C2)
•Terminal block (TB)
Screws of
the cabinet
Photo 4
Outdoor fan capacitor (C2)
42
Compressor capacitor (C1)
Terminal block(TB)
Page 43
OPERATING PROCEDUREPHOTOS
3. Removing the propeller fan and the outdoor fan
motor
(1) Remove the cabinet. (Refer to 1.)
(2) Remove the propeller fan nut.
(3) Remove the propeller fan.
NOTE : Loose the propeller fan in the rotating direction for
removal.
When attaching the propeller fan, align the mark on the
propeller fan and the motor shaft cut section.
Set the propeller fan in position by using the cut on the
shaft and the mark on the propeller fan.
(4) Remove lead clamps and fan motor lead wires.
(5) Remove screws fixing the fan motor.
(6) Remove the outdoor fan motor.
Photo 5
Set screws of
outdoor fan motor
Propeller fan
Propeller fan nut
Lead clamps
Outdoor
fan motor
4. Removing the compressor
(1) Remove the cabinet. (Refer to 1)
(2) Remove the relay panel.
(3) Remove the soundproof felt.
(4) Remove the terminal cover on the compressor.
(5) Disconnect lead wires from the glass terminal of the com-
pressor.
(6) Recover gas from the refrigerant circuit.
(7) Disconnect the welded part of the discharge pipe.
(8) Disconnect the welded part of the suction pipe.
(9) Remove nuts fixing the compressor.
)
(
Remove the compressor.
10
NOTE
● Before using a burner, reclaim gas from the pipes until the
pressure gauge shows 0 kg/cm
● Use the burner under the condition that gas can be recovered
even when the inner pressure rises by heat.
12-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS
Part number that is circled is not shown in the illustration.
Q'ty/unit
MS-XV09
E1
UV-
(WH)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
No.
10
Part No.
1
E02 408 302
2
E02 408 509
3
E02 001 504
4
E02 661 702
5
E02 409 235
6
E02 409 040
7
E02 409 041
8
E02 127 382
9
E02 336 385
E02 408 034
E02 676 452
11
E02 677 452
E02 678 452
12
E02 408 303
13
E02 408 308
E02 665 300
14
E02 678 300
15
E02 427 375
E02 665 505
16
E02 151 505
17
E02 408 307
18
E02 408 381
Part Name
LINE FLOW FAN
BEARING MOUNT
SLEEVE BEARING
DRAIN HOSE
NOZZLE (WH)
VANE UPPER (WH)
VANE LOWER (WH)
FUSE
VARISTOR
VANE CRANK SET
ELECTRONIC CONTROL P.C.BOARD
ELECTRONIC CONTROL P.C.BOARD
ELECTRONIC CONTROL P.C.BOARD
VANE MOTOR
ROOM TEMPERATURE THERMISTOR
INDOOR FAN MOTOR
INDOOR FAN MOTOR
TERMINAL BLOCK
FAN MOTOR RUBBER MOUNT
FAN MOTOR RUBBER MOUNT
INDOOR COIL THERMISTOR
TOP PANEL
OUTDOOR HEAT EXCHANGER
OUTDOOR HEAT EXCHANGER
OUTDOOR HEAT EXCHANGER
CABINET
GRILLE
COMPRESSOR
COMPRESSOR
COMPRESSOR
COMPRESSOR RUBBER SET
COMPRESSOR RUBBER SET
BASE
BASE
STOP VALVE(GAS)
STOP VALVE(GAS)
STOP VALVE(LIQUID)
SERVICE PANEL
BACK PANEL
BACK PANEL
MOTOR SUPPORT
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
Part number that is circled is not shown in the illustration.
12
5
These figures show about MU-XV12UV.
786
1011
9
46
Page 47
MU-XV07UV MU-XV09UV -
E1
MU-XV12UV -
E1
12-6. OUTDOOR UNIT
ELECTRICAL PARTS AND FUNCTIONAL PARTS
E1
5
No.
E02 665 501
1
E02 665 301
2
E02 667 301
E02 661 351
3
E02 059 351
E02 664 351
E02 665 353
4
E02 667 353
E02 486 374
5
Part No.
123
Part name
PROPELLER FAN
OUTDOOR FAN MOTOR
OUTDOOR FAN MOTOR
OUTDOOR FAN CAPACITOR
OUTDOOR FAN CAPACITOR
OUTDOOR FAN CAPACITOR
COMPRESSOR CAPACITOR
COMPRESSOR CAPACITOR
TERMINAL BLOCK
Symbol
in Wiring
Diagram
MF
MF
C2
C2
C2
C1
C1
TB
4
MU-XV07
E1
UV-
1
1
1
1
1
Q'ty/unit
MU-XV09
E1
UV-
1
1
1
1
1
MU-XV12
E1
UV-
1
1
1
1
1
Remarks
RA6V23RA6V33-
1.5+ /440VAC
1.8+ /440VAC
2.0+ /440VAC
25+ /450VAC
30+ /450VAC
3P
47
Page 48
Deodorizing filter (Gray sponge type)
Air cleaning filter (White bellows type)
12-7. AIR CLEANING FILTER
Model
Part No.
MAC-1300FT
MS-XV07UVMS-XV09UVMS-XV12UV-
E1
E1
E1
MAC-1800DF
Model
Part No.
MS-XV07UVMS-XV09UVMS-XV12UV-
E1
E1
E1
MAC-1200RC
Model
Part No.
MS-XV07UVMS-XV09UVMS-XV12UV-
E1
E1
E1
● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity.
● Normal life of AIR CLEANING FILTER is 4 months. However, when it becomes dirty, replace it as soon as possi-
ble.
● 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.
12-8. DEODORIZING FILTER
● DEODORIZING FILTER removes ammonia and hydrogen sulphide emitted from tobacco, and odor of pets.
● Clean DEODORIZING FILTER every two weeks. If the filter is particularly dirty, clean the filter more often.
● For cleaning, soak the filter in warm water for a while, and then wash and rinse it. Dry the filter in the shade
thoroughly.
● When the filter color is still dark even after cleaning, replace the filter with a new one.
Replace the filter at least once a year.
● DEODORIZING FILTER and AIR CLEANING FILTER can be attached on either side.
12-9. REMOTE CONTROLLER HOLDER
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN
CC
Copyright 2002 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD.
Distributed in Jan. 2002. No.OB295 222
Made in Japan
New publication, effective Jan. 2002
Specifications subject to change without notice.
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