Mitsubishi MS-C18TV-E1, MS-C24TV-E1, MU-C18TV-E1, MU-C24TV-E1 Service Manual

SPLIT-TYPE AIR CONDITIONERS

HFC

utilized

R407C

SERVICE MANUAL

Wireless type
Models

No. OB273

MS-C18TV ­MS-C24TV -

MS-C18TV ­MS-C24TV -

E1
E1

(WH)

(WH)

· MU-C18TV -

· MU-C24TV -

CONTENTS

1. TECHNICAL CHANGES ····································3

2. PART NAMES AND FUNCTIONS······················5

3. SPECIFICATION·················································7

4. NOISE CRITERIA CURVES·······························8

5. OUTLINES AND DIMENSIONS·························9

6. WIRING DIAGRAM ··········································10

7. REFRIGERANT SYSTEM DIAGRAM··············12

8. PERFORMANCE CURVES······························14

9. MICROPROCESSOR CONTROL ····················20

10. SERVICE FUNCTIONS·····································27

11. TROUBLESHOOTING ······································29

12. DISASSEMBLY INSTRUCTIONS·····················37

13. PARTS LIST······················································43

14. OPTIONAL PARTS ···········································46

E1E1

E1E1

-30 -20 -10 0 10 20

30

40 50 60

-0.5

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

(MPa[Gauge])

R407C
R22

Conversion chart of refrigerant temperature and pressure

Saturated liquid pressure

(:)

Lubricant

Refrigerant

New refrigerant

R407C

R32: R125: R134a (23%:25%:52%)

Non-azeotropic refrigerant

Not included

A1/A1

86.2

-43.6

0.9177

42.5

Non combustible

0

1530

From liquid phase in cylinder

Impossible

Incompatible oil

Non
Non

Previous refrigerant

R22

HCFC22 (100%)

Single refrigerant

Included

A1

86.5

-40.8

0.94

44.4

Non combustible

0.055
1700

Gas phase

Possible

Compatible oil

Light yellow

Non

Refrigerant
Composition (Ratio)
Refrigerant handling
Chlorine
Safety group (ASHRAE)
Molecular weight
Boiling point (:)
Steam pressure [25:](Mpa [Gauge])
Saturated steam density [25:](Kg/K)
Combustibility
ODP w1
GWP w2
Refrigerant charge method
Additional charge on leakage
Kind
Color
Smell

w1:Ozone Destruction Parameter : based on CFC11
w2 :Global Warmth Parameter : based on CO

2

1

TECHNICAL CHANGES

INFORMATION FOR THE AIR CONDITIONER WITH R-407C REFRIGERANT

This room air conditioner adopts HFC refrigerant (R407C) which will never destroy the ozone layer.
Pay attention to following points.

1 Take sufficient care not to allow water and other contaminations to enter the R407C refrigerant during storage and

installation, since it is more susceptible to contaminations than HCFC (R22) refrigerant.

2 Clean refrigerant pipings should be used.
3 Composition change may occur in R407C since it is a mixed refrigerant. When charging, charge liquid refrigerant to

prevent composition change.

4 Be especially careful when managing the tools.

If dust, dirt, or water mixes in the refrigerant cycle, it may cause decrease of performance.

New Specification Previous Specification

The incompatible lubricant easily separates from refrigerant
and makes the layer in the upper inside the suction muffler.
The higher position of the returning oil hole enables to return
the lubricant of the upper layer to the compressor.

Suction muffler

Compressor

Compressor

Returning oil hole

Lubricant

Refrigerant

NOTE : The unit of pressure has been changed to MPa on the

The conversion factor is: 1(MPa[Gauge]) =10.2(kgf/ff[Gauge])

3

Since refrigerant and lubricant are compatible each other,
lubricant returns to the compressor through the lower
position returning oil hole.

Suction muffler

Compressor

Returning oil hole

Lubricant and Refrigerant

international system of units(SI unit system).

Electronic scale for
refrigerant charging

Refrigerant
gas cylinder
operating
valve

Refrigerant gas cylinder
for R407C with siphon

Refrigerant (liquid)

Gage manifold

Outdoor unit

Indoor unit

Union

Liquid pipe
Gas pipe

Service port

Stop valve

Charge hose

1.Tools dedicated for the air conditioner with R407C refrigerant

R407C tools Can R22 tools be used?

Gas leak detector

A gauge manifold with a sight glass is recommended for charging the
liquid refregerant.

Hose material have been changed to improve the pressure
resistance.

Dedicated for HFC refrigerant.

Description

Provided to prevent the back flow of oil. This adapter enables you to use
existing vacuum pumps.

No

No

No

Yes
Yes

New

New

Gauge manifold

Charge hose

Torque wrench
Flare tool

Vacuum pump
adapter

Electronic scale for
refrigerant charging

Use the electronic control scale for measuring the R407C.

The following tools are required for R407C refrigerant. Some R22 tools can be substituted for R407C tools.
Do not use tools that are used with R22 refrigerant in order to avoid mixing oils.

2.Refrigerant piping

Do not use copper pipes which are broken, deformed or discoloured.
In addition, be sure that the inner surfaces of the pipes are clean, free of hazardous sulfur and oxides, or have no dust/ dirt,
shaving particles, oil, moisture or any other contamination.

•If there is a large amount of residual oil inside the piping and joints, deterioration of the refrigerant oil will result.

3.Refrigerant oil

Apply the specific refrigeration oil (accessories) to the flare and the union seat surfaces.

4.Air purge

Use the vacuum pump for air purge to protect environments, and to avoid changing the composition of refrigerant.

5.Additional charge

For additional charging, charge the refrigerant with liquid phase slowly using a gas cylinder. If the refrigerant is charged with
gas phase, the composition of refrigerant will change. In this case, ability of the refrigerating cycle decreases or normal
operation can be impossible.
If liquid refrigerant is rapidly charged at once, the compressor may be locked.

NOTE: 1. The R407C is mixed refrigerant which consist of three different kinds of evaporative temperature. As a result, the

R407C occurs the change of composition.

2. Additional refrigerant charge has been changed by change of refrigerant.(R22 ➔ R407C)
R22 : <MU-type> 15g/m ➔ R407C : <MU-C18/C24TV> 20g/m

4

2

Remote control
receiving section

Air cleaning filter(option)

Deodorizing filter(option)

Front panel

Grille

(When the grille is open)

1
5
1
2
2
1
1
1

1

2

3

4

5

6

7

8

Installation plate
Installation plate fixing screw 4 x 25 mm
Remote controller mounting hardware
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)
Refrigeration oil

PART NAMES AND FUNCTIONS

INDOOR UNIT

MS-C18TV ­MS-C24TV -

E1

E1

ACCESSORIES

MS-C18TV ­MS-C24TV -

E1

E1

OUTDOOR UNIT

MU-C18TV ­MU-C24TV -

5

E1

E1

REMOTE CONTROLLER

MS-C18TV ­MS-C24TV -

E1

E1

Signal transmitting section

Operation display section

OPERATE /STOP

(ON /OFF)button

Open the front lid.

ON/OFF

TOO

WARM

PM

AM

TOO

COOL

TEMPERATURE buttons

FAN SPEED CONTROL button

OPERATION SELECT button

ECONO COOL button

RESET button

TOO

ON/OFF

WARM

COOL

DRY

FAN

VANE

RESET

I FEEL

FAN

MODE

ECONO COOL

6

CLOCK

CLOCK

PM

AM

TOO

COOL

STOP

START

HR.

MIN.

OFF-TIMER button

ON-TIMER button

HR. button

MIN. button

(TIME SET button)

CLOCK SET button

VANE CONTROL button

3

Indoor model

Function

Power supply

Capacity
Dehumidification
Air flow(High)
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)
Fan speed (High)
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(High)
Fan speed(High)
Fan speed regulator
Refrigerant filling
capacity(R407C)
Refrigerating oil (Model)

kW

R/h

K /h

A
A

W

A(kW)

%

A
A

"

mm

kg

dB

rpm

k"
k"

K /h

A
A

W

"

"

mm

kg
dB

rpm

kg

cc

Cooling

Single phase

230V, 50Hz

—

WHT-BLK 183.8
BLK-RED 250.5
1,015O320O190

14

5

3
10
10

850o605o290

1100 (NEO22)

MS-C24TV -

E1

6.4

3.1

816

25

12.7

2,840

97
84

0.29

2.25

RA4V27-EE

45

1,260

MU-C24TV -

E1

11.86

0.55

NE-47VMHHT

2,200
C-R 0.67
C-S 2.02

RA6V60-AC

WHT-BLK 81.1 BLK-RED 102.2

BLK-YLW 92.2

61
53

873

2

1.85

MS-C18TV -

E1

5.1

2.4

756

15

9.3

2,100

98
50

0.25

2.43

RA4V27-EF

42

1,180

MU-C18TV -

E1

2370

8.66

0.39

PE-33VPEHT

1,500
C-R 1.08
C-S 2.18

RA6V50-OG

WHT-BLK 116.4

BLK-RED 111.0

48
52

845

1

1.10

Electrical

data

Fan

motor

Special

remarks

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Capacity

Cooling

Single phase

230V, 50Hz

—

WHT-BLK 183.8
BLK-RED 250.5
1,015O320O190

14

5

3
10
10

2322

850o605o290

1400 (NEO22)

SPECIFICATION

NOTE: Test conditions are based on JIS C 9612.

Cooling : Indoor DB 27°C / WB 19°C

Outdoor DB 35°C / WB 24°C

7

4

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

42

SPL(dB(A)) LINE

NOTCH

High

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

Test conditions,
Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:

45

SPL(dB(A)) LINE

NOTCH

High

NOISE CRITERIA CURVES

MS-C18TV -

E1

MU-C18TV -

E1

NOTCH

High

SPL(dB(A)) LINE

52

Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:

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

63 125 250 500 1000 2000 4000 8000

NC-20

BAND CENTER FREQUENCIES, Hz

MS-C24TV -

E1

MU-C24TV -

E1

NOTCH

High

SPL(dB(A)) LINE

53

Test conditions,
Cooling : Dry-bulb temperature 35: Wet-bulb temperature 24:

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

8

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

5

OUTLINES AND DIMENSIONS

MS-C18TV ­MS-C24TV -

E1

E1

INDOOR UNIT

320

Wireless remote controller

MU-C18TV ­MU-C24TV -

E1

E1

OUTDOOR UNIT

58

162

995

1015

19

19077550

Power supply cord
Lead to right 2m
Lead to left 1m

150 648 217

60

40

Installation plate

Air in

4holes 11✕20

450
450

Air out

100mm or more

Indoor unit

352438

5190

Installation plate

Liquid line [8-0.5m
Gas line [12-0.43m

{

Insulation [50 O.D

[28 I.D

Drain hose [16
Insulation [28

100mm or more

Unit : mm

20

254

3 297

Wall hole [75

100mm or more

Drainage
hole [16.2

35

90

248

Air in

605

Drainage
3holes [33

292

20

355

350

Air in

Air out

500
850

183

20

50

74

157

290

30

100

310

345

161

500mm or more

Service panel

Liquid refrigerant
pipe joint

Refregerant pipe
(flared) [6.35(MU-C18TV)
[9.52(MU-C24TV)

35-

30-

Gas refregerant
pipe joint

Refregerant pipe
(flared) [15.88

350mm or more

9

6

SYMBOL

RT12

TB

52C

SYMBOL

IC141

MF

MV
NR11
RT11

SYMBOL

C11

DSAR

F11
F12

HIC1

NAME

NAME NAME
INDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
THERMAL FUSE(93°C)
DC / DC CONVERTER

HYBRID IC
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMIST OR

INDOOR COIL THERMISTOR
TERMINAL BLOCK
CONTACTOR

MF

BLK

WHT

RED
ORN

N

230V~

BLU

4

BLU

WHT

BLK

RED

C1

TB

WHT

ORN

F

C2

RED

WHT

1
2
3

GRN/YLW

FROM

INDOOR UNIT

CONNECTING

C

S

R

MC

2

CIRCUIT BREAKER

50Hz

230V~

BRN

DSAR

GRN/YLW

LD1

REMOTE
CONTROLLER

3
1

DISPLAY
P.C. BOARD

101

CN

102

CN

151

CN

BLU

RECEIVER
P.C. BOARD

MV

5

F11

33

BLU

~/N 230V

CORD

POWER
SUPPLY

TO OUTDOOR
UNIT

CONNECTING

BRN

L

N

GRN/YLW

TB

52C

BRN

2

4

3

CN201

1

2

F12

WHT

BLU

BLU
BLU

TRANS

HIC1

111

CN

4
2
1

C11

CN211

BLK

WHT

GRY
RED

RT11

MF

3

121

CN

CN

112

NR11

IC141

RT12

YLW

BRN

ELECTRONIC CONTROL P.C. BOARD

PE

WIRING DIAGRAM

MS-C18TV -

INDOOR UNIT

E1

MODEL WIRING DIAGRAM

NOTE: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, : Connector

MU-C18TV -

OUTDOOR UNIT

SYMBOL

C1

NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.

C2

2.Use copper conductors only. (For field wiring)

3. Symbols below indicate.
/: Terminal block, : Connector

E1

MODEL WIRING DIAGRAM

COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR

NAME

SYMBOL

F

MC

FUSE(2A)
COMPRESSOR(INNER PROTECTOR)

NAME NAME

10

SYMBOL

MF

TB

OUTDOOR FAN MOTOR(INNER PROTECTOR)
TERMINAL BLOCK

VG79B066H01

SG79B965H01

MS-C24TV -

E1

INDOOR UNIT

TO OUTDOOR
UNIT
CONNECTING

230V

~

230V~

POWER
SUPPLY
CORD
~/N 230V
50Hz

PE

CIRCUIT BREAKER

SYMBOL

C11

DSAR

F11
F12

HIC1

NOTE:1. About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.

INDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
THERMAL FUSE(93°C)
DC / DC CONVERTER

2. Use copper conductors only. (For field wiring)

3. Symbols below indicate.
/: Terminal block, : Connector

MU-C24TV -

OUTDOOR UNIT

MODEL WIRING DIAGRAM

TB

BLU

BRN

NAME

RED

BLU

WHT

F12

DSAR

WHT

1

GRN/YLW

BLU

2

BLU

1

LD1

SYMBOL

3

N

2
L

GRN/YLW

IC141

MF
MV

NR11

RT11

E1

MODEL WIRING DIAGRAM

TB

3

230V~

230V~

BLU

N

2

WHT WHT

WHT

CN

102

CN201

3

BLU

1

CN

151

3

MV

DISPLAY
P.C. BOARD

5

4
3

CN

ELECTRONIC CONTROL P.C. BOARD

101

3

RECEIVER
P.C. BOARD

NAME NAME
HYBRID IC
INDOOR FAN MOTOR(INNER FUSE)
VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMIST OR

REDRED

A1/a

TB2

WHT

1

RED

RED

26F1

BLU

C1

F

A2/b

52C

52C

21

52C

REDBLU
BLK

HIC1

TRANS

F11

CR

RED

GRY

78

X1

S

MC

R

IC141

NR11

C11

REMOTE
CONTROLLER

SYMBOL

RT12

TB

52C

3

X1

5
6

1

BLU

BLK

YLW

YLW

BLK

C

CN

112

CN
111

CN

121

CN211

4
2
1

3

BRN
YLW
GRY
WHT
RED
BLK

RT12

RT11

MF

INDOOR COIL THERMISTOR
TERMINAL BLOCK
CONTACTOR

VG79B067H01

C2

RED

ORN

WHT

123456

WHT

RED

ORN

MF

FROM INDOOR UNIT CONNECTING

SYMBOL

CR

NOTE:1. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing.

CR SURGE ABSORBER
COMPRESSOR CAPACITOR

C1

OUTDOOR FAN CAPACITOR

C2

FUSE(2A)

F

2.Use copper conductors only. (For field wiring)

3. Symbols below indicate.
/: Terminal block, : Connector

NAME

GRN/YLW

SYMBOL

MC
MF

TB

TB2

NAME NAME
COMPRESSOR (INNER PROTECTOR)
OUTDOOR FAN MOTOR (INNER PROTECTOR)
TERMINAL BLOCK
TERMINAL BLOCK

11

SYMBOL

X1

26F1

52C

FAN MOTOR RELAY
THERMOSTAT (AIR FLOW CONTORL)
COMPRESSOR CONTACTOR

SG79B964H01

7

REFRIGERANT SYSTEM DIAGRAM

MS-C18TV -

INDOOR UNIT

Indoor
heat
exchanger

Distributor

Room temperature
thermistor
RT11

E1

Indoor coil
thermistor

Refrigerant pipe [15.88
(Option)
(with heat insulator)

RT12

Flared
connection

Refrigerant pipe [6.35
(Option)

(with heat insulator)

Stop valve
(with service port)

Stop valve

Compressor

Capillary tube
[3.0 X [2.0 X 850

Unit:mm

MU-C18TV -

E1

OUTDOOR UNIT

Outdoor
heat

Strainer

Refrigerant flow in cooling

exchanger

MS-C24TV -

INDOOR UNIT

Indoor
heat
exchanger

Distributor

Room temperature
thermistor
RT11

E1

Indoor coil
thermistor

RT12

Refrigerant pipe [15.88 (Option)
(with heat insulator)

Stop valve
(with service port)

Flared
connection

Stop valve

Refrigerant pipe
[9.52

(Option)

(with heat insulator)

Compressor

Capillary tube [3.0 X [2.0 X 550

Unit:mm

MU-C24TV -

E1

OUTDOOR UNIT

Outdoor
heat
exchanger

Strainer

12

Refrigerant flow in cooling

Model

Refrigerant piping

Max. length : m

A

15

Piping size O.D : mm

Length of connecting pipe : m

Indoor unit

Gas 0.43

Liquid 0.5

Gas

15.88

Liquid

6.35

9.52

Outdoor unit

Gas 0

Liquid 0

MS-C18TV -

E1

MU-C18TV - E1
MS-C24TV - E1

MU-C24TV - E1

MAX. REFRIGERANT PIPING LENGTH

MAX. HEIGHT DIFFERENCE

Indoor
unit

Refrigerant Piping

w Max. Height
difference 5m

w Height difference should be within 5m regardless of which unit,
indoor or outdoor position is high.

ADDITIONAL REFRIGERANT CHARGE(R407C : g)

Max.length

A

Outdoor unit

Model

MS-C18TV - E1
MU-C18TV - E1
MS-C24TV - E1
MU-C24TV - E1

Outdoor unit precharged

1,100

1,850

Refrigerant piping length (one way)

7m

0

Calculation : Xg=20g/mx(Refrigerant piping length (m)-7)

10m

60

15m

160

13

Wet and dry-bulb
thermometers

Dry-bulb
thermometers

8

PERFORMANCE CURVES

MS-C18TV - MU-C18TV ­MS-C24TV - MU-C24TV -

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

Rated voltage : 207 ~ 253V

(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 next 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 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 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.

,50Hz

E1E1

E1E1

Cooling

}

INDOOR UNIT

OUTDOOR UNIT

14

12.2

15 20

50

25
60

30
70

35(:)

(%)

0.3

0.4

0.5

0.6

0.7

7.0

6.0

5.0

4.0

3.0

18 32

230V

15 20

50

25
60

30
70

35(:)

(%)

7.0

8.0

9.0

10.0

11.0

12.0

230V

18

32

7.0

6.0

5.0

4.0

3.0

230V

15 20

50

25
60

30
70

35(:)

(%)

0.3

0.4

0.5

0.6

0.7

18 32

230V

15 20

50

25
60

30
70

35(:)
(%)

8.0

9.0

10.0

11.0

12.0

13.0

14.0

18

32

11.2

10.1

9.1

8.2

7.2

14.9

13.5

12.2

11.0

9.8

8.6

MS-C18TV - E1

MS-C24TV - E1

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT
COOL operation

11

Both indoor and outdoor unit are under the same temperature/humidity condition.

Dry-bulb temperature

20
25

Relative humidity(%)

50
60

30 70

22

Air flow should be set at MAX.

33

The unit of pressure has been changed to MPa on the international system of units(SI unit system).

The conversion factor is : 1(MPa[Gauge]) =10.2(kgf/ff[Gauge])

(kgf/F[Gauge])(MPa[Gauge])

Outdoor low pressure

Ambient temperature(˚C)Ambient humidity(%)

MU-C18TV -

E1

MU-C18TV -

Outdoor unit current(A)

Ambient temperature(˚C)Ambient humidity(%)

E1

(kgf/F[Gauge])(MPa[Gauge])

Outdoor low pressure

E1

MU-C24TV -

Ambient temperature(˚C)Ambient humidity(%)

Outdoor unit current(A)

Ambient temperature(˚C)Ambient humidity(%)

15

MU-C24TV -

E1

PERFORMANCE DATA COOL operation

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 18 5.99 3.18 0.53 1680 5.74 3.04 0.53 1764 5.51 2.92 0.53 1848 5.30 2.81 0.53 1932
21 20 6.25 2.56 0.41 1764 5.99 2.46 0.41 1869 5.81 2.38 0.41 1911 5.61 2.30 0.41 1995
22 18 5.99 3.42 0.57 1680 5.74 3.27 0.57 1764 5.51 3.14 0.57 1848 5.30 3.02 0.57 1932
22 20 6.25 2.81 0.45 1764 5.99 2.70 0.45 1869 5.81 2.62 0.45 1911 5.61 2.52 0.45 1995
22 22 6.50 2.15 0.33 1827 6.27 2.07 0.33 1943 6.12 2.02 0.33 1995 5.87 1.94 0.33 2079
23 18 5.99 3.66 0.61 1680 5.74 3.50 0.61 1764 5.51 3.36 0.61 1848 5.30 3.24 0.61 1932
23 20 6.25 3.06 0.49 1764 5.99 2.94 0.49 1869 5.81 2.85 0.49 1911 5.61 2.75 0.49 1995
23 22 6.50 2.41 0.37 1827 6.27 2.32 0.37 1943 6.12 2.26 0.37 1995 5.87 2.17 0.37 2079
24 18 5.99 3.90 0.65 1680 5.74 3.73 0.65 1764 5.51 3.58 0.65 1848 5.30 3.45 0.65 1932
24 20 6.25 3.31 0.53 1764 5.99 3.18 0.53 1869 5.81 3.08 0.53 1911 5.61 2.97 0.53 1995
24 22 6.50 2.67 0.41 1827 6.27 2.57 0.41 1943 6.12 2.51 0.41 1995 5.87 2.40 0.41 2079
24 24 6.83 1.98 0.29 1911 6.58 1.91 0.29 2016 6.43 1.86 0.29 2079 6.22 1.80 0.29 2184
25 18 5.99 4.13 0.69 1680 5.74 3.96 0.69 1764 5.51 3.80 0.69 1848 5.30 3.66 0.69 1932
25 20 6.25 3.56 0.57 1764 5.99 3.42 0.57 1869 5.81 3.31 0.57 1911 5.61 3.20 0.57 1995
25 22 6.50 2.93 0.45 1827 6.27 2.82 0.45 1943 6.12 2.75 0.45 1995 5.87 2.64 0.45 2079
25 24 6.83 2.26 0.33 1911 6.58 2.17 0.33 2016 6.43 2.12 0.33 2079 6.22 2.05 0.33 2184
26 18 5.99 4.37 0.73 1680 5.74 4.19 0.73 1764 5.51 4.02 0.73 1848 5.30 3.87 0.73 1932
26 20 6.25 3.81 0.61 1764 5.99 3.66 0.61 1869 5.81 3.55 0.61 1911 5.61 3.42 0.61 1995
26 22 6.50 3.19 0.49 1827 6.27 3.07 0.49 1943 6.12 3.00 0.49 1995 5.87 2.87 0.49 2079
26 24 6.83 2.53 0.37 1911 6.58 2.43 0.37 2016 6.43 2.38 0.37 2079 6.22 2.30 0.37 2184
26 26 7.04 1.76 0.25 2016 6.83 1.71 0.25 2121 6.73 1.68 0.25 2184 6.53 1.63 0.25 2247
27 18 5.99 4.61 0.77 1680 5.74 4.42 0.77 1764 5.51 4.24 0.77 1848 5.30 4.08 0.77 1932
27 20 6.25 4.06 0.65 1764 5.99 3.90 0.65 1869 5.81 3.78 0.65 1911 5.61 3.65 0.65 1995
27 22 6.50 3.45 0.53 1827 6.27 3.32 0.53 1943 6.12 3.24 0.53 1995 5.87 3.11 0.53 2079
27 24 6.83 2.80 0.41 1911 6.58 2.70 0.41 2016 6.43 2.63 0.41 2079 6.22 2.55 0.41 2184
27 26 7.04 2.04 0.29 2016 6.83 1.98 0.29 2121 6.73 1.95 0.29 2184 6.53 1.89 0.29 2247
28 18 5.99 4.85 0.81 1680 5.74 4.65 0.81 1764 5.51 4.46 0.81 1848 5.30 4.30 0.81 1932
28 20 6.25 4.31 0.69 1764 5.99 4.13 0.69 1869 5.81 4.01 0.69 1911 5.61 3.87 0.69 1995
28 22 6.50 3.71 0.57 1827 6.27 3.58 0.57 1943 6.12 3.49 0.57 1995 5.87 3.34 0.57 2079
28 24 6.83 3.08 0.45 1911 6.58 2.96 0.45 2016 6.43 2.89 0.45 2079 6.22 2.80 0.45 2184
28 26 7.04 2.32 0.33 2016 6.83 2.26 0.33 2121 6.73 2.22 0.33 2184 6.53 2.15 0.33 2247
29 18 5.99 5.09 0.85 1680 5.74 4.88 0.85 1764 5.51 4.68 0.85 1848 5.30 4.51 0.85 1932
29 20 6.25 4.56 0.73 1764 5.99 4.37 0.73 1869 5.81 4.24 0.73 1911 5.61 4.10 0.73 1995
29 22 6.50 3.97 0.61 1827 6.27 3.83 0.61 1943 6.12 3.73 0.61 1995 5.87 3.58 0.61 2079
29 24 6.83 3.35 0.49 1911 6.58 3.22 0.49 2016 6.43 3.15 0.49 2079 6.22 3.05 0.49 2184
29 26 7.04 2.60 0.37 2016 6.83 2.53 0.37 2121 6.73 2.49 0.37 2184 6.53 2.42 0.37 2247
30 18 5.99 5.33 0.89 1680 5.74 5.11 0.89 1764 5.51 4.90 0.89 1848 5.30 4.72 0.89 1932
30 20 6.25 4.81 0.77 1764 5.99 4.61 0.77 1869 5.81 4.48 0.77 1911 5.61 4.32 0.77 1995
30 22 6.50 4.23 0.65 1827 6.27 4.08 0.65 1943 6.12 3.98 0.65 1995 5.87 3.81 0.65 2079
30 24 6.83 3.62 0.53 1911 6.58 3.49 0.53 2016 6.43 3.41 0.53 2079 6.22 3.30 0.53 2184
30 26 7.04 2.89 0.41 2016 6.83 2.80 0.41 2121 6.73 2.76 0.41 2184 6.53 2.68 0.41 2247
31 18 5.99 5.57 0.93 1680 5.74 5.34 0.93 1764 5.51 5.12 0.93 1848 5.30 4.93 0.93 1932
31 20 6.25 5.06 0.81 1764 5.99 4.85 0.81 1869 5.81 4.71 0.81 1911 5.61 4.54 0.81 1995
31 22 6.50 4.49 0.69 1827 6.27 4.33 0.69 1943 6.12 4.22 0.69 1995 5.87 4.05 0.69 2079
31 24 6.83 3.90 0.57 1911 6.58 3.75 0.57 2016 6.43 3.66 0.57 2079 6.22 3.55 0.57 2184
31 26 7.04 3.17 0.45 2016 6.83 3.08 0.45 2121 6.73 3.03 0.45 2184 6.53 2.94 0.45 2247
32 18 5.99 5.81 0.97 1680 5.74 5.57 0.97 1764 5.51 5.34 0.97 1848 5.30 5.14 0.97 1932
32 20 6.25 5.31 0.85 1764 5.99 5.09 0.85 1869 5.81 4.94 0.85 1911 5.61 4.77 0.85 1995
32 22 6.50 4.75 0.73 1827 6.27 4.58 0.73 1943 6.12 4.47 0.73 1995 5.87 4.28 0.73 2079
32 24 6.83 4.17 0.61 1911 6.58 4.01 0.61 2016 6.43 3.92 0.61 2079 6.22 3.80 0.61 2184
32 26 7.04 3.45 0.49 2016 6.83 3.35 0.49 2121 6.73 3.30 0.49 2184 6.53 3.20 0.49 2247

OUTDOOR DB(:)

INDOOR INDOOR

DB(:) WB(:)

21 25 27 30

CAPACITY : 5.1(KW) SHF : 0.71 INPUT : 2100(W)

MS-C18TV - : MU-C18TV -

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB: Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB: Wet-bulb temperature

E1E1

16

PERFORMANCE DATA COOL operation

OUTDOOR DB(:)

INDOOR INDOOR

35 40 43 46

DB(:) WB(:)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 18 5.00 2.65 0.53 2058 4.59 2.43 0.53 2184 4.41 2.34 0.53 2226 4.23 2.24 0.53 2268
21 20 5.25 2.15 0.41 2142 4.90 2.01 0.41 2247 4.72 1.93 0.41 2310 4.54 1.86 0.41 2373
22 18 5.00 2.85 0.57 2058 4.59 2.62 0.57 2184 4.41 2.51 0.57 2226 4.23 2.41 0.57 2268
22 20 5.25 2.36 0.45 2142 4.90 2.20 0.45 2247 4.72 2.12 0.45 2310 4.54 2.04 0.45 2373
22 22 5.56 1.83 0.33 2226 5.20 1.72 0.33 2352 5.02 1.66 0.33 2394 4.85 1.60 0.33 2436
23 18 5.00 3.05 0.61 2058 4.59 2.80 0.61 2184 4.41 2.69 0.61 2226 4.23 2.58 0.61 2268
23 20 5.25 2.57 0.49 2142 4.90 2.40 0.49 2247 4.72 2.31 0.49 2310 4.54 2.22 0.49 2373
23 22 5.56 2.06 0.37 2226 5.20 1.92 0.37 2352 5.02 1.86 0.37 2394 4.85 1.79 0.37 2436
24 18 5.00 3.25 0.65 2058 4.59 2.98 0.65 2184 4.41 2.87 0.65 2226 4.23 2.75 0.65 2268
24 20 5.25 2.78 0.53 2142 4.90 2.59 0.53 2247 4.72 2.50 0.53 2310 4.54 2.41 0.53 2373
24 22 5.56 2.28 0.41 2226 5.20 2.13 0.41 2352 5.02 2.06 0.41 2394 4.85 1.99 0.41 2436
24 24 5.87 1.70 0.29 2310 5.51 1.60 0.29 2415 5.36 1.55 0.29 2468 5.20 1.51 0.29 2520
25 18 5.00 3.45 0.69 2058 4.59 3.17 0.69 2184 4.41 3.04 0.69 2226 4.23 2.92 0.69 2268
25 20 5.25 2.99 0.57 2142 4.90 2.79 0.57 2247 4.72 2.69 0.57 2310 4.54 2.59 0.57 2373
25 22 5.56 2.50 0.45 2226 5.20 2.34 0.45 2352 5.02 2.26 0.45 2394 4.85 2.18 0.45 2436
25 24 5.87 1.94 0.33 2310 5.51 1.82 0.33 2415 5.36 1.77 0.33 2468 5.20 1.72 0.33 2520
26 18 5.00 3.65 0.73 2058 4.59 3.35 0.73 2184 4.41 3.22 0.73 2226 4.23 3.09 0.73 2268
26 20 5.25 3.20 0.61 2142 4.90 2.99 0.61 2247 4.72 2.88 0.61 2310 4.54 2.77 0.61 2373
26 22 5.56 2.72 0.49 2226 5.20 2.55 0.49 2352 5.02 2.46 0.49 2394 4.85 2.37 0.49 2436
26 24 5.87 2.17 0.37 2310 5.51 2.04 0.37 2415 5.36 1.98 0.37 2468 5.20 1.92 0.37 2520
26 26 6.17 1.54 0.25 2394 5.81 1.45 0.25 2499 5.64 1.41 0.25 2552 5.46 1.36 0.25 2604
27 18 5.00 3.85 0.77 2058 4.59 3.53 0.77 2184 4.41 3.40 0.77 2226 4.23 3.26 0.77 2268
27 20 5.25 3.41 0.65 2142 4.90 3.18 0.65 2247 4.72 3.07 0.65 2310 4.54 2.95 0.65 2373
27 22 5.56 2.95 0.53 2226 5.20 2.76 0.53 2352 5.02 2.66 0.53 2394 4.85 2.57 0.53 2436
27 24 5.87 2.40 0.41 2310 5.51 2.26 0.41 2415 5.36 2.20 0.41 2468 5.20 2.13 0.41 2520
27 26 6.17 1.79 0.29 2394 5.81 1.69 0.29 2499 5.64 1.63 0.29 2552 5.46 1.58 0.29 2604
28 18 5.00 4.05 0.81 2058 4.59 3.72 0.81 2184 4.41 3.57 0.81 2226 4.23 3.43 0.81 2268
28 20 5.25 3.62 0.69 2142 4.90 3.38 0.69 2247 4.72 3.26 0.69 2310 4.54 3.13 0.69 2373
28 22 5.56 3.17 0.57 2226 5.20 2.97 0.57 2352 5.02 2.86 0.57 2394 4.85 2.76 0.57 2436
28 24 5.87 2.64 0.45 2310 5.51 2.48 0.45 2415 5.36 2.41 0.45 2468 5.20 2.34 0.45 2520
28 26 6.17 2.04 0.33 2394 5.81 1.92 0.33 2499 5.64 1.86 0.33 2552 5.46 1.80 0.33 2604
29 18 5.00 4.25 0.85 2058 4.59 3.90 0.85 2184 4.41 3.75 0.85 2226 4.23 3.60 0.85 2268
29 20 5.25 3.83 0.73 2142 4.90 3.57 0.73 2247 4.72 3.44 0.73 2310 4.54 3.31 0.73 2373
29 22 5.56 3.39 0.61 2226 5.20 3.17 0.61 2352 5.02 3.06 0.61 2394 4.85 2.96 0.61 2436
29 24 5.87 2.87 0.49 2310 5.51 2.70 0.49 2415 5.36 2.62 0.49 2468 5.20 2.55 0.49 2520
29 26 6.17 2.28 0.37 2394 5.81 2.15 0.37 2499 5.64 2.09 0.37 2552 5.46 2.02 0.37 2604
30 18 5.00 4.45 0.89 2058 4.59 4.09 0.89 2184 4.41 3.93 0.89 2226 4.23 3.77 0.89 2268
30 20 5.25 4.04 0.77 2142 4.90 3.77 0.77 2247 4.72 3.63 0.77 2310 4.54 3.50 0.77 2373
30 22 5.56 3.61 0.65 2226 5.20 3.38 0.65 2352 5.02 3.27 0.65 2394 4.85 3.15 0.65 2436
30 24 5.87 3.11 0.53 2310 5.51 2.92 0.53 2415 5.36 2.84 0.53 2468 5.20 2.76 0.53 2520
30 26 6.17 2.53 0.41 2394 5.81 2.38 0.41 2499 5.64 2.31 0.41 2552 5.46 2.24 0.41 2604
31 18 5.00 4.65 0.93 2058 4.59 4.27 0.93 2184 4.41 4.10 0.93 2226 4.23 3.94 0.93 2268
31 20 5.25 4.25 0.81 2142 4.90 3.97 0.81 2247 4.72 3.82 0.81 2310 4.54 3.68 0.81 2373
31 22 5.56 3.84 0.69 2226 5.20 3.59 0.69 2352 5.02 3.47 0.69 2394 4.85 3.34 0.69 2436
31 24 5.87 3.34 0.57 2310 5.51 3.14 0.57 2415 5.36 3.05 0.57 2468 5.20 2.97 0.57 2520
31 26 6.17 2.78 0.45 2394 5.81 2.62 0.45 2499 5.64 2.54 0.45 2552 5.46 2.46 0.45 2604
32 18 5.00 4.85 0.97 2058 4.59 4.45 0.97 2184 4.41 4.28 0.97 2226 4.23 4.11 0.97 2268
32 20 5.25 4.47 0.85 2142 4.90 4.16 0.85 2247 4.72 4.01 0.85 2310 4.54 3.86 0.85 2373
32 22 5.56 4.06 0.73 2226 5.20 3.80 0.73 2352 5.02 3.67 0.73 2394 4.85 3.54 0.73 2436
32 24 5.87 3.58 0.61 2310 5.51 3.36 0.61 2415 5.36 3.27 0.61 2468 5.20 3.17 0.61 2520
32 26 6.17 3.02 0.49 2394 5.81 2.85 0.49 2499 5.64 2.76 0.49 2552 5.46 2.67 0.49 2604

MS-C18TV - : MU-C18TV -

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB: Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB: Wet-bulb temperature

E1E1

17

PERFORMANCE DATA COOL operation

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 18 7.52 3.61 0.48 2272 7.20 3.46 0.48 2386 6.91 3.32 0.48 2499 6.66 3.19 0.48 2613
21 20 7.84 2.82 0.36 2386 7.52 2.71 0.36 2528 7.30 2.63 0.36 2584 7.04 2.53 0.36 2698
22 18 7.52 3.91 0.52 2272 7.20 3.74 0.52 2386 6.91 3.59 0.52 2499 6.66 3.46 0.52 2613
22 20 7.84 3.14 0.40 2386 7.52 3.01 0.40 2528 7.30 2.92 0.40 2584 7.04 2.82 0.40 2698
22 22 8.16 2.28 0.28 2471 7.87 2.20 0.28 2627 7.68 2.15 0.28 2698 7.36 2.06 0.28 2812
23 18 7.52 4.21 0.56 2272 7.20 4.03 0.56 2386 6.91 3.87 0.56 2499 6.66 3.73 0.56 2613
23 20 7.84 3.45 0.44 2386 7.52 3.31 0.44 2528 7.30 3.21 0.44 2584 7.04 3.10 0.44 2698
23 22 8.16 2.61 0.32 2471 7.87 2.52 0.32 2627 7.68 2.46 0.32 2698 7.36 2.36 0.32 2812
24 18 7.52 4.51 0.60 2272 7.20 4.32 0.60 2386 6.91 4.15 0.60 2499 6.66 3.99 0.60 2613
24 20 7.84 3.76 0.48 2386 7.52 3.61 0.48 2528 7.30 3.50 0.48 2584 7.04 3.38 0.48 2698
24 22 8.16 2.94 0.36 2471 7.87 2.83 0.36 2627 7.68 2.76 0.36 2698 7.36 2.65 0.36 2812
24 24 8.58 2.06 0.24 2584 8.26 1.98 0.24 2726 8.06 1.94 0.24 2812 7.81 1.87 0.24 2954
25 18 7.52 4.81 0.64 2272 7.20 4.61 0.64 2386 6.91 4.42 0.64 2499 6.66 4.26 0.64 2613
25 20 7.84 4.08 0.52 2386 7.52 3.91 0.52 2528 7.30 3.79 0.52 2584 7.04 3.66 0.52 2698
25 22 8.16 3.26 0.40 2471 7.87 3.15 0.40 2627 7.68 3.07 0.40 2698 7.36 2.94 0.40 2812
25 24 8.58 2.40 0.28 2584 8.26 2.31 0.28 2726 8.06 2.26 0.28 2812 7.81 2.19 0.28 2954
26 18 7.52 5.11 0.68 2272 7.20 4.90 0.68 2386 6.91 4.70 0.68 2499 6.66 4.53 0.68 2613
26 20 7.84 4.39 0.56 2386 7.52 4.21 0.56 2528 7.30 4.09 0.56 2584 7.04 3.94 0.56 2698
26 22 8.16 3.59 0.44 2471 7.87 3.46 0.44 2627 7.68 3.38 0.44 2698 7.36 3.24 0.44 2812
26 24 8.58 2.74 0.32 2584 8.26 2.64 0.32 2726 8.06 2.58 0.32 2812 7.81 2.50 0.32 2954
26 26 8.83 1.77 0.20 2726 8.58 1.72 0.20 2868 8.45 1.69 0.20 2954 8.19 1.64 0.20 3039
27 18 7.52 5.41 0.72 2272 7.20 5.18 0.72 2386 6.91 4.98 0.72 2499 6.66 4.79 0.72 2613
27 20 7.84 4.70 0.60 2386 7.52 4.51 0.60 2528 7.30 4.38 0.60 2584 7.04 4.22 0.60 2698
27 22 8.16 3.92 0.48 2471 7.87 3.78 0.48 2627 7.68 3.69 0.48 2698 7.36 3.53 0.48 2812
27 24 8.58 3.09 0.36 2584 8.26 2.97 0.36 2726 8.06 2.90 0.36 2812 7.81 2.81 0.36 2954
27 26 8.83 2.12 0.24 2726 8.58 2.06 0.24 2868 8.45 2.03 0.24 2954 8.19 1.97 0.24 3039
28 18 7.52 5.72 0.76 2272 7.20 5.47 0.76 2386 6.91 5.25 0.76 2499 6.66 5.06 0.76 2613
28 20 7.84 5.02 0.64 2386 7.52 4.81 0.64 2528 7.30 4.67 0.64 2584 7.04 4.51 0.64 2698
28 22 8.16 4.24 0.52 2471 7.87 4.09 0.52 2627 7.68 3.99 0.52 2698 7.36 3.83 0.52 2812
28 24 8.58 3.43 0.40 2584 8.26 3.30 0.40 2726 8.06 3.23 0.40 2812 7.81 3.12 0.40 2954
28 26 8.83 2.47 0.28 2726 8.58 2.40 0.28 2868 8.45 2.37 0.28 2954 8.19 2.29 0.28 3039
29 18 7.52 6.02 0.80 2272 7.20 5.76 0.80 2386 6.91 5.53 0.80 2499 6.66 5.32 0.80 2613
29 20 7.84 5.33 0.68 2386 7.52 5.11 0.68 2528 7.30 4.96 0.68 2584 7.04 4.79 0.68 2698
29 22 8.16 4.57 0.56 2471 7.87 4.41 0.56 2627 7.68 4.30 0.56 2698 7.36 4.12 0.56 2812
29 24 8.58 3.77 0.44 2584 8.26 3.63 0.44 2726 8.06 3.55 0.44 2812 7.81 3.44 0.44 2954
29 26 8.83 2.83 0.32 2726 8.58 2.74 0.32 2868 8.45 2.70 0.32 2954 8.19 2.62 0.32 3039
30 18 7.52 6.32 0.84 2272 7.20 6.05 0.84 2386 6.91 5.81 0.84 2499 6.66 5.59 0.84 2613
30 20 7.84 5.64 0.72 2386 7.52 5.41 0.72 2528 7.30 5.25 0.72 2584 7.04 5.07 0.72 2698
30 22 8.16 4.90 0.60 2471 7.87 4.72 0.60 2627 7.68 4.61 0.60 2698 7.36 4.42 0.60 2812
30 24 8.58 4.12 0.48 2584 8.26 3.96 0.48 2726 8.06 3.87 0.48 2812 7.81 3.75 0.48 2954
30 26 8.83 3.18 0.36 2726 8.58 3.09 0.36 2868 8.45 3.04 0.36 2954 8.19 2.95 0.36 3039
31 18 7.52 6.62 0.88 2272 7.20 6.34 0.88 2386 6.91 6.08 0.88 2499 6.66 5.86 0.88 2613
31 20 7.84 5.96 0.76 2386 7.52 5.72 0.76 2528 7.30 5.54 0.76 2584 7.04 5.35 0.76 2698
31 22 8.16 5.22 0.64 2471 7.87 5.04 0.64 2627 7.68 4.92 0.64 2698 7.36 4.71 0.64 2812
31 24 8.58 4.46 0.52 2584 8.26 4.29 0.52 2726 8.06 4.19 0.52 2812 7.81 4.06 0.52 2954
31 26 8.83 3.53 0.40 2726 8.58 3.43 0.40 2868 8.45 3.38 0.40 2954 8.19 3.28 0.40 3039
32 18 7.52 6.92 0.92 2272 7.20 6.62 0.92 2386 6.91 6.36 0.92 2499 6.66 6.12 0.92 2613
32 20 7.84 6.27 0.80 2386 7.52 6.02 0.80 2528 7.30 5.84 0.80 2584 7.04 5.63 0.80 2698
32 22 8.16 5.55 0.68 2471 7.87 5.35 0.68 2627 7.68 5.22 0.68 2698 7.36 5.00 0.68 2812
32 24 8.58 4.80 0.56 2584 8.26 4.62 0.56 2726 8.06 4.52 0.56 2812 7.81 4.37 0.56 2954
32 26 8.83 3.89 0.44 2726 8.58 3.77 0.44 2868 8.45 3.72 0.44 2954 8.19 3.60 0.44 3039

OUTDOOR DB(:)

INDOOR INDOOR

DB(:) WB(:)

21 25 27 30

CAPACITY : 6.4(KW) SHF : 0.66 INPUT : 2840(W)

MS-C24TV - : MU-C24TV -

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB: Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB: Wet-bulb temperature

E1E1

18

PERFORMANCE DATA COOL operation

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 18 6.27 3.01 0.48 2783 5.76 2.76 0.48 2954 5.54 2.66 0.48 3010 5.31 2.55 0.48 3067
21 20 6.59 2.37 0.36 2897 6.14 2.21 0.36 3039 5.92 2.13 0.36 3124 5.70 2.05 0.36 3209
22 18 6.27 3.26 0.52 2783 5.76 3.00 0.52 2954 5.54 2.88 0.52 3010 5.31 2.76 0.52 3067
22 20 6.59 2.64 0.40 2897 6.14 2.46 0.40 3039 5.92 2.37 0.40 3124 5.70 2.28 0.40 3209
22 22 6.98 1.95 0.28 3010 6.53 1.83 0.28 3181 6.30 1.77 0.28 3238 6.08 1.70 0.28 3294
23 18 6.27 3.51 0.56 2783 5.76 3.23 0.56 2954 5.54 3.10 0.56 3010 5.31 2.97 0.56 3067
23 20 6.59 2.90 0.44 2897 6.14 2.70 0.44 3039 5.92 2.60 0.44 3124 5.70 2.51 0.44 3209
23 22 6.98 2.23 0.32 3010 6.53 2.09 0.32 3181 6.30 2.02 0.32 3238 6.08 1.95 0.32 3294
24 18 6.27 3.76 0.60 2783 5.76 3.46 0.60 2954 5.54 3.32 0.60 3010 5.31 3.19 0.60 3067
24 20 6.59 3.16 0.48 2897 6.14 2.95 0.48 3039 5.92 2.84 0.48 3124 5.70 2.73 0.48 3209
24 22 6.98 2.51 0.36 3010 6.53 2.35 0.36 3181 6.30 2.27 0.36 3238 6.08 2.19 0.36 3294
24 24 7.36 1.77 0.24 3124 6.91 1.66 0.24 3266 6.72 1.61 0.24 3337 6.53 1.57 0.24 3408
25 18 6.27 4.01 0.64 2783 5.76 3.69 0.64 2954 5.54 3.54 0.64 3010 5.31 3.40 0.64 3067
25 20 6.59 3.43 0.52 2897 6.14 3.19 0.52 3039 5.92 3.08 0.52 3124 5.70 2.96 0.52 3209
25 22 6.98 2.79 0.40 3010 6.53 2.61 0.40 3181 6.30 2.52 0.40 3238 6.08 2.43 0.40 3294
25 24 7.36 2.06 0.28 3124 6.91 1.94 0.28 3266 6.72 1.88 0.28 3337 6.53 1.83 0.28 3408
26 18 6.27 4.26 0.68 2783 5.76 3.92 0.68 2954 5.54 3.76 0.68 3010 5.31 3.61 0.68 3067
26 20 6.59 3.69 0.56 2897 6.14 3.44 0.56 3039 5.92 3.32 0.56 3124 5.70 3.19 0.56 3209
26 22 6.98 3.07 0.44 3010 6.53 2.87 0.44 3181 6.30 2.77 0.44 3238 6.08 2.68 0.44 3294
26 24 7.36 2.36 0.32 3124 6.91 2.21 0.32 3266 6.72 2.15 0.32 3337 6.53 2.09 0.32 3408
26 26 7.74 1.55 0.20 3238 7.30 1.46 0.20 3380 7.07 1.41 0.20 3451 6.85 1.37 0.20 3522
27 18 6.27 4.52 0.72 2783 5.76 4.15 0.72 2954 5.54 3.99 0.72 3010 5.31 3.82 0.72 3067
27 20 6.59 3.96 0.60 2897 6.14 3.69 0.60 3039 5.92 3.55 0.60 3124 5.70 3.42 0.60 3209
27 22 6.98 3.35 0.48 3010 6.53 3.13 0.48 3181 6.30 3.03 0.48 3238 6.08 2.92 0.48 3294
27 24 7.36 2.65 0.36 3124 6.91 2.49 0.36 3266 6.72 2.42 0.36 3337 6.53 2.35 0.36 3408
27 26 7.74 1.86 0.24 3238 7.30 1.75 0.24 3380 7.07 1.70 0.24 3451 6.85 1.64 0.24 3522
28 18 6.27 4.77 0.76 2783 5.76 4.38 0.76 2954 5.54 4.21 0.76 3010 5.31 4.04 0.76 3067
28 20 6.59 4.22 0.64 2897 6.14 3.93 0.64 3039 5.92 3.79 0.64 3124 5.70 3.65 0.64 3209
28 22 6.98 3.63 0.52 3010 6.53 3.39 0.52 3181 6.30 3.28 0.52 3238 6.08 3.16 0.52 3294
28 24 7.36 2.94 0.40 3124 6.91 2.76 0.40 3266 6.72 2.69 0.40 3337 6.53 2.61 0.40 3408
28 26 7.74 2.17 0.28 3238 7.30 2.04 0.28 3380 7.07 1.98 0.28 3451 6.85 1.92 0.28 3522
29 18 6.27 5.02 0.80 2783 5.76 4.61 0.80 2954 5.54 4.43 0.80 3010 5.31 4.25 0.80 3067
29 20 6.59 4.48 0.68 2897 6.14 4.18 0.68 3039 5.92 4.03 0.68 3124 5.70 3.87 0.68 3209
29 22 6.98 3.91 0.56 3010 6.53 3.66 0.56 3181 6.30 3.53 0.56 3238 6.08 3.40 0.56 3294
29 24 7.36 3.24 0.44 3124 6.91 3.04 0.44 3266 6.72 2.96 0.44 3337 6.53 2.87 0.44 3408
29 26 7.74 2.48 0.32 3238 7.30 2.33 0.32 3380 7.07 2.26 0.32 3451 6.85 2.19 0.32 3522
30 18 6.27 5.27 0.84 2783 5.76 4.84 0.84 2954 5.54 4.65 0.84 3010 5.31 4.46 0.84 3067
30 20 6.59 4.75 0.72 2897 6.14 4.42 0.72 3039 5.92 4.26 0.72 3124 5.70 4.10 0.72 3209
30 22 6.98 4.19 0.60 3010 6.53 3.92 0.60 3181 6.30 3.78 0.60 3238 6.08 3.65 0.60 3294
30 24 7.36 3.53 0.48 3124 6.91 3.32 0.48 3266 6.72 3.23 0.48 3337 6.53 3.13 0.48 3408
30 26 7.74 2.79 0.36 3238 7.30 2.63 0.36 3380 7.07 2.55 0.36 3451 6.85 2.47 0.36 3522
31 18 6.27 5.52 0.88 2783 5.76 5.07 0.88 2954 5.54 4.87 0.88 3010 5.31 4.67 0.88 3067
31 20 6.59 5.01 0.76 2897 6.14 4.67 0.76 3039 5.92 4.50 0.76 3124 5.70 4.33 0.76 3209
31 22 6.98 4.46 0.64 3010 6.53 4.18 0.64 3181 6.30 4.03 0.64 3238 6.08 3.89 0.64 3294
31 24 7.36 3.83 0.52 3124 6.91 3.59 0.52 3266 6.72 3.49 0.52 3337 6.53 3.39 0.52 3408
31 26 7.74 3.10 0.40 3238 7.30 2.92 0.40 3380 7.07 2.83 0.40 3451 6.85 2.74 0.40 3522
32 18 6.27 5.77 0.92 2783 5.76 5.30 0.92 2954 5.54 5.09 0.92 3010 5.31 4.89 0.92 3067
32 20 6.59 5.27 0.80 2897 6.14 4.92 0.80 3039 5.92 4.74 0.80 3124 5.70 4.56 0.80 3209
32 22 6.98 4.74 0.68 3010 6.53 4.44 0.68 3181 6.30 4.29 0.68 3238 6.08 4.13 0.68 3294
32 24 7.36 4.12 0.56 3124 6.91 3.87 0.56 3266 6.72 3.76 0.56 3337 6.53 3.66 0.56 3408
32 26 7.74 3.41 0.44 3238 7.30 3.21 0.44 3380 7.07 3.11 0.44 3451 6.85 3.01 0.44 3522

OUTDOOR DB(:)

INDOOR INDOOR

35 40 43 46

DB(:) WB(:)

MS-C24TV - : MU-C24TV -

NOTE Q : Total capacity (kW) SHF : Sensible heat factor DB: Dry-bulb temperature

SHC : Sensible heat capacity (kW) INPUT : Total power input (W) WB: Wet-bulb temperature

E1E1

19

9

lighting
not lighting

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

Operation Indicator

Operation Indicator lamp

The operation indicator at the right side of the indoor
unit indicates the operation state.

INDOOR UNIT DISPLAY SECTION

MICROPROCESSOR CONTROL

WIRELESS REMOTE CONTROLLER

Signal transmitting section

Operation display section

OPERATE /STOP

(ON /OFF)button

FAN SPEED CONTROL button

OPERATION SELECT button

ECONO COOL button

RESET button

I FEEL

FAN

MODE

ECONO COOL

ON/OFF

ON/OFF

COOL

DRY

WARM

WARM

FAN

VANE

RESET

PM

AM

TOO

TOO

COOL

TEMPERATURE buttons

CLOCK

PM

AM

TOO

TOO

COOL

STOP

START

HR.

MIN.

CLOCK

OFF-TIMER button

ON-TIMER button

HR. button

MIN. button

(TIME SET button)

CLOCK SET button

VANE CONTROL button

MS-C18TV ­MS-C24TV -

E1

E1

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.

9-1. “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.

Initial room temperature

25: or more
more than 13:,

less than 25:

● Once the mode is fixed, the mode does not change by
room temperature afterwards.

● Under the ON-TIMER ( ) operation, the mode is
determined according to the room temperature at the 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.

mode

COOL mode of

“I FEEL CONTROL“

DRY mode of

“I FEEL CONTROL”

Example

Previous operation

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 timer chart
Example

Previous operation

COOL mode of
“I FEEL CONTROL”
or COOL mode

20

Restart

COOL mode of
“I FEEL CONTROL”

Restart

COOL or DRY mode of
“I FEEL CONTROL” that
determined by room
temperature at start-up
of the operation.

Mode

COOL mode of

"I FEEL CONTROL"

DRY mode of

"I FEEL CONTROL"

Initial room temperature Initial set temperature

26: or more

25: to 26:

more than13:, less than 25:

24:

Initial room temperature
minus 2:
Initial room temperature
minus 2:

w1

(4) The initial set temperature is decided by the initial room temperature.

TOO

COOL

TOO

WARM

w 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)

— COOL mode of “I FEEL CONTROL” —

1. Indoor fan speed control

Indoor fan operates at the set speed by FAN SPEED CONTROL button.
In AUTO the fan speed is as follows.

Initial temperature difference

Fan speed

Room temperature minus set temperature : 2 degrees or more······································High
Room temperature minus set temperature : Between 1 and 2 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 -1°C or below, the coil frost prevention mode starts immediately.
However, the coil frost prevention doesn’t work for 5 minutes since the compressor has started.
The indoor fan operates at the set speed and the compressor stops for 5 minutes.
After that, if RT12still reads below -1°C this mode is prolonged until the RT12 reads over -1°C.

2 Time control

When the three conditions as follows have been satisfied for 1 hour and 45 minutes, compressor stops for 3 minutes.
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 and 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 deg.

2 deg.

1.7 deg.

4 deg.

21

Operation chart

Example

ON

ON

Compressor
Outdoor fan

Indoor fan

—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.
By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature

decrease.

1. Indoor fan speed control

Indoor fan operates at the set speed by FAN SPEED CONTROL button.
However, in AUTO fan operation, 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.

OFF

(continuously at set speed)

ON

OFF

Operation time chart

Example

Thermostat

Indoor fan

Outdoor fan
Compressor

3. Coil frost prevention

The operation is as same as coil frost prevention during COOL mode of “I FEEL CONTROL”.
Indoor fan operates at the set speed and the compressor stops for 5minutes, because protection (Coil frost prevention)has
the priority. However when coil frost prevention works while the compressor is not operating, it’s speed becomes Low.

OFF

ON

OFF

OFF

8 min.

ON

ON

OFF

OFF

ON

ON

3 min.

ON

OFF

ON

OFF

ON

OFF

1 min.

22

9-2. COOL ( ) OPERATION

High

High

Med.

Low

AUTO

Horizontal Middle

Downward

Swing

(1) Press OPERATE/STOP(ON/OFF) button.

OPERATION INDICATOR lamp of the indoor
unit turns on with a beep tone.

(2) Select COOL mode with the OPERATION

SELECT button.

(3) Press the TEMPERATURE buttons.

(TOO WARM or TOO COOL button) to select
the desired temperature.
The setting range is 16 ~ 31°C.
w Indoor fan continues to operate regardless

of thermostat’s OFF-ON at set speed.

w Coil frost prevention is as same as COOL

mode of “I FEEL CONTROL”.

9-3. DRY ( ) OPERATION

(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 temper-

ature and determines the set temperature.
Set temperature is as shown on the right
chart.
Thermostat (SET TEMP.) does not work.
The other operations are same as DRY
mode of “I FEEL CONTROL”.

(4) DRY operation will not function when the room temperature is 13°C or below.

9-4.FAN( d )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.

9-5. 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 IC141 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 has 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 30.)

9-6. 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 microprocessor.

(2) The horizontal vane angle and mode change as follows by pressing the VANE CONTROL button.

23

(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.

(4) VANE AUTO ( ) mode

In VANE AUTO mode, the microprocessor automatically determines the horizontal vane angle and operation 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 horizontal 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 compressor cumulative operation time 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 “ ”.

(8) ECONO COOL ( ) operation (ECONOmical operation)

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 CONTROLbut­ton 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:, 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

24

Upward(level) blow time

(sec.)

23
20
17
14
11

8
5
2

9-7. TIMER OPERATION

PM

AM

PM

PM

1. How to set the timer

(1) Press OPERATE/STOP(ON/OFF) button to start the air conditioner.
(2) Check that the current time is set correctly.
NOTE : Timer operation will not work without setting the current time. Initially “AM0:00” blinks at the current time display of

TIMER MONITOR, so set the current time correctly with CLOCK SET button.

(3) Press ON/OFF TIMER buttons to select the operation.

“ON-TIMER” button... AUTO START operation (ON timer)
“OFF-TIMER” button... AUTO STOP operation (OFF timer)

(4) Press HR. and MIN. button (TIME set button) to set the timer. Time setting is 10-minute units.

HR. and MIN. button will work when “ ” or “ ”

mark is flashing.

These marks disappear in 1 minute.
After setting the ON timer, check that OPERATION INDICATOR lamp of the indoor unit lights.

NOTE1 :Be sure to place the remote controller at the position where its signal can reach the air conditioner even during

TIMER operation, or the set time may deviate within the range of about 10 minutes.

NOTE2 :Reset the timer in the following cases, or the set time may deviate and other malfunctions may occur.

● A power failure occurs.

● The circuit breaker functions.

2. Cancel

TIMER setting can be cancelled with the ON/OFF TIMER buttons.
To cancel the ON timer, press the “
To cancel the OFF timer, press the “

ON-TIMER

OFF-TIMER

” button.

” button.

TIMER is cancelled and the display of set time disappears.

PROGRAM TIMER

● The OFF timer and ON timer can be used in combination.

● “ ”and “ ” display shows the order of the OFF timer and ON timer operation.

(Example 1) The current time is 8:00 PM.

The unit turns off at 11:00 PM, and on at 6:00 AM.

(Example 2) The current time is 11:00 AM.

The unit turns on at 5:00 PM, and off at 9:00 PM.

NOTE : TIMER setting will be cancelled by power failure or breaker functioning.

25

9-8. EMERGENCY-TEST OPERATION

EMERGENCY OPERATION switch

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.

OPERATION INDICATOR lamp

Press once <Cool>
Press once again

<Stop>

26

10

SERVICE FUNCTIONS

MS-C18TV ­MS-C24TV -

E1

E1

10-1. 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 36.)
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.)

10-2. 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

1 unit operation
No. 1 unit
No. 2 unit
No. 3 unit
No. 4 unit

NOTE :

At power supply failure or installation, indoor unit deletes the memory about remote controller. When the power supply
is turned on and indoor unit receives the first signals from the remote controller, the remote controller number is desig­nated as the indoor unit number. Therefore at and after the second time indoor unit accepts the remote controller of the
initial setting number.
At setting-error, turn the power supply off to cancel the individual operation and then turn the power supply on to restart
the setting.

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

27

10-3. AUTO RESTART FUNCTION

JR06

CN102

CN151

CN112 CN111 CN121

CN101

BZ

SW

52C

IC101 RA102

IC141

CN211

C11CN201

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.

How to set “AUTO RESTART FUNCTION”

1Turn off the main power for the unit.
2Pull out the electronic control P.C. board and the display P.C.board. (Refer to page 37.)
3Cut the RESISTOR JR06 on the indoor electronic control P.C.board. (Refer to page 36.)

Operation

1If the main power (230V AC) 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 indoor unit 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.

28

11

Insert the minus pole
of the batteries first.
Check if the polarity of
the battereis is correct.

RESET button

TROUBLESHOOTING

MS-C18TV - MU-C18TV ­MS-C24TV - MU-C24TV -

E1E1

E1E1

11-1. 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 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 30.

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.

Then reattach the front lid.

2 Press the RESET button with tip end of ball point

pen or the like, and then use the remote controller.

NOTE : If the RESET button is not pressed, the remote controller may not operate correctly.

29

11-2. 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 36.

Refer to D
"Check of
outdoor unit"
on page 33
or 34.

Refer to B
"Check of
remote
controller
and receiver
P.C. board"
on page 32.

1. Check indoor /
outdoor
connecting wire.

2. Refer to C
"Check of indoor
electronic control
P.C. board"
on page 33.

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 36.

Refer to A
"Check of
indoor fan
motor"
on page 32.

Outdoor unit
doesn't
stop even if
indoor unit
stop.

Refer to E
"Check of
outdoor unit"
on page 35.

MS-C24TV only

Indoor unit
operates.
Outdoor unit
doesn't operate
normally.

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.

flashing

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.

30

Detect method

Detect Indoor coil/room tem­perature thermistor short or
open circuit every 8 seconds
during operation.

When rotational frequency

feedback signal is not emit
during 12-second indoor fan
operation

● Check thermistor calibration.

● Reconnect connector.

● Check indoor electronic control P.C.

board.

● Disconnect connector CN211 and then
check connector CN121 2 - 3 to make

sure rotational frequency feedback signal
of 1.5V or over exists.

● Check indoor electronic control P.C.
board.

● Check indoor fan motor.

● Reconnect connector.

Check point

P

~

BLK

R

MAIN

AUX

RED

S

C

WHT

MAIN

AUX

FUSE

BLK

RED

WHT

GRY

YLW

BRN

MAIN

AUX

BLK

RED

WHTORN

P

YLW

RED

BLU

ORN

PNK

ROTOR

INNER PROTECTOR

P

MS-C18TV - MU-C18TV -

MAIN

AUX

BLKYLW RED WHTORN

P

MAIN

MS-C24TV - MU-C24TV -

2. Trouble criterion of main parts

Part name

Room
temperature
thermistor(RT11)

Indoor coil
thermistor(RT12)

Measure the resistance with a tester.
(Part temperature 10°C ~ 30°C)

Normal

8kΩ ~ 20kΩ

Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)

E1E1

E1E1

Check method and criterion

Abnormal

Open or short-circuit

Figure

Compressor
(MC)

Indoor fan
motor (MF)

C-R
C-S

Normal

C18TV C24TV

0.95 ~ 1.17Ω

1.92 ~ 2.36Ω

0.59 ~ 0.73Ω

1.78 ~ 2.18Ω

Abnormal

short-circuit

Measure the resistance between the terminals with a tester.
(Coil wiring temperature10°C ~ 30°C)

Abnormal

short-circuit

WHT-BLK

Motor partSensor part

BLK-RED

Normal
176 ~ 192Ω
240 ~ 261Ω

Measure the voltage Power ON.

BRN-YLW
YLW-GRY

Normal

4.5 ~ 5.5V

(When fan revolved one time)

0V➔5V➔0V

(Approx.)

Abnormal

Remain 0V or 5V

Measure the resistance between the terminals with a tester.
(Coil wiring temperature –10°C ~ 40°C)

Open or

Open or

MS-C18TV

Outdoor fan
motor (MF)

Vane motor
(MV)

WHT-BLK
BLK-RED

BLK-YLW

Normal

C18TV C24TV

102 ~ 126Ω

97 ~ 120Ω

71 ~ 88Ω

90 ~ 111Ω

– 81 ~ 100Ω

Abnormal

Open or

short-circuit

Measure the resistance between the terminals with a tester.
(Part temperature10°C ~ 30°C)

Normal

358 ~ 388Ω

Abnormal

Open or

short-circuit

31

MS-C24TV

A

Check of indoor fan motor

Indoor fan motor doesn’t operate.

No

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.4 and then No.1 and No.2.

Check of remote controller and receiver P.C. board

B

Are lead wires connected?

Is resistance 0 (short circuit) or ∞ (open circuit)?

Turn OFF the power supply.
Check connector CN211 visually.

Yes

Yes ( 0 or ∞ )

Repair or replace the indoor fan motor.

Is soldering point of the connector

correctly soldered?

Yes

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.

No

(others)

No

Does voltage repeat 0V DC and 5V DC?

Replace the indoor electronic control P.C. board.

No

Resolder it.

Yes

Indoor unit operates by pressing the EMERGENCY OPERATION switch, but doesn’t operate with the remote controller.

wCheck if the remote controller is exclusive for this air conditioner.

Switch on the remote controller.

Is LCD display on the remote
controller displayed?

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?

Yes

OK

No
(not clear)

No

Replace the batteries.(Refer to page 29.)

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

Measure the voltage between receiver P.C. board connector No.2
pressed.

No

Yes

Replace the remote controller.

● Re-install the unit away from lights.

● Attach a filter on receiving part.

(+)

and No.1 when remote controller button is

Is the voltage approx. 4V DC?

No(5V or 0V DC)

Replace the receiver P.C. board.

32

Yes

Replace the indoor electronic control P.C.
board.

Check of indoor electronic control P.C. board

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.

Turn OFF the
power supply.

Turn OFF the
power supply.

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 INDICATORE lamp light up
by pressing the EMERGENCY OPERATION switch?

No

Yes

1.Pull out the power
supply cord.

2.

Measure the resistance
between CN201 1 on
the indoor electronic
control P.C. board
and

N on the terminal

block with a tester.

Is resistance approx. 0"?

Replace the fuse (F12)

CN201

2

1

N

F12

1

3

Terminal
block

Be sure to check both fresistance.

Yes

No (∞)

C

The unit doesn’t operate with the remote controller.
Also, the OPERATION INDICATOR lamp doesn’t light up by pressing the EMERGENCY OPERATION switch.

D

Check of outdoor unit

Compressor and / or outdoor fan motor doesn’t operate.

MS-C18TV

Check the outdoor
wiring, the outdoor
fan motor and
compressor.

Check the conti­nuity of indoor
and outdoor unit
connection.

Press the EMERGENCY OPERA­TION switch.
3-minute time delay works.
Test run operation operates for 30
minutes.

Yes

Yes

Check the voltage to terminal block
of outdoor unit.
Is there 230V AC to terminal block
between 2 - N ?

Check the voltage to terminal block
of indoor unit.
Is there 230V AC to terminal block
between 2 - N ?

Replace the indoor electronic con­trol P.C. board.

Turn ON the power supply.

No

No

33

Turn ON the power supply.

Pess the EMERGENCY OPERATION switch.
3-minute time delay works.
Test run operation operates for 30 minutes.

Is there 230V AC between 2-N on the
outdoor terminal block ?

Yes

Compressor
doesn't operate.

Yes

No

Is there 230V AC between
3-N on the outdoor terminal
block?

Replace the indoor
electronic control P.C.
board.

Check the compressor.
(Refer to page 31.)

Outdoor fan motor
doesn't operate.

Yes

Is there 230V AC between
3-N on the outdoor terminal
block?

Check the outdoor fan motor.
(Refer to page 31.)

No

Make the connection
of wiring correct.

Is there 230V AC between
3-N on the indoor terminal
block?

Yes

Reconnect the continuity
of indoor and outdoor
unit connection.

Yes

Is there 230V AC between
1 on the compressor
contactor(52C) and N on the
outdoor terminal block?

Replace the compressor
contactor(52C).

No

No

No

Replace the indoor
electronic control P.C.
board.

Is there 230V AC between
3-N on the indoor terminal
block?

Yes

Reconnect the continuity
of indoor and outdoor
unit connection.

No

MS-C24TV

34

E

Check of outdoor unit

<MS-C24TV only>

Compressor and / or outdoor fan motor doesn’t stop.

1 Turn OFF the power supply.
2 After 30 seconds, turn ON the power supply again.
3 Operate the unit in COOL mode by pressing the

EMERGENCY OPERATION switch.
4 Operate the unit for 1 minute or more and stop it by
pressing the EMERGENCY OPERATION switch again.

After 30 seconds, does
compressor stop ?

Yes

OK

After 30 seconds, does
outdoor fan motor stop ?

Yes

OK

Is there 230V AC between

No

3-N on the outdoor terminal
block?

Is there 230V AC between
3-N on the indoor terminal
block?

Replace the indoor
electronic control P.C.
board.

Is there 230V AC between

No

3-N on the indoor terminal
block?

Replace the indoor
electronic control P.C.
board.

Yes

Yes

Yes

Is there 230V AC between

No

1 on the compressor
contactor(52C) and N on the
outdoor terminal block?

Replace the compressor
contactor(52C).

No

No

Reconnect the continuity
of indoor and outdoor
unit connection.

Reconnect the continuity
of indoor and outdoor
unit connection.

Yes

No

Make the connection
of wiring correct.

35

TEST POINT DIAGRAM AND VOLTAGE
MS-C18TV - MS-C24TV ­Indoor electronic control P.C. board

E1E1

Varistor(NR11)

Fan motor power supply

}

Fuse 250V AC 3.15A

Power supply input

}

230V AC

Auto restart function
Cut the Resistor JR06.
(Refer to page 28.)

+

C144

C144

--

Room temperature thermistor(RT11)

Indoor coil thermistor(RT12)

Timer short mode point(JPG, JPS)
(Refer to page 27.)

Emergency
operation switch

JPG

--

JP45

+

Room temperature thermistor (RT11)
Indoor coil thermistor (RT12)

}

}

12V DC

5V DC

36

12

(1) Slide the sleeve and check if there is a locking lever or not. (2) The terminal with this connector is a terminal

with lock mechanism.

1Slide the sleeve.
2Pull the terminal while

pushing the locking
lever.

1Hold the sleeve, and
pull out the terminal
slowly.

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.

<"Terminal with lock mechanism" Detaching points>

Connector

Sleeve

Locking lever

DISASSEMBLY INSTRUCTIONS

12-1. MS-C18TV - MS-C24TV -

E1E1

INDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the front panel

(1) Remove the screw caps at the down of the front panel.

Remove the screws.

(2) Pull the panel down to your side slightly and unhook the

catches at the top.

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 electrical cover.
(3) Remove the screw of the terminal cover.
(4) Remove the screw of the terminal block.
(5) Unhook the catch of the lamp holder.
(6) Remove the receiver holder and the receiver P.C. board.
(7) Remove the screw of the ground wire.
(8) Disconnect all the connectors and all the lead wires on the

electronic control P.C. board.

(9) Remove the electronic control P.C. board and display P.C.

board.

37

Photo 1

Photo 2

Screw of the
ground wire

Lamp
holder

Front panel

Screws

Indoor coil thermistor

Display
P.C. board

Receiver
P.C. board

Screw of
the termi­nal block

Indoor
electronic
control
P.C. board

Receiver
holder

OPERATING PROCEDURE PHOTOS

3. Removing the electrical box

(1) Remove the front panel. (Refer to 1)
(2) Remove the electrical cover.
(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 the electrical box, remove the electri-

cal 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.

5. Removing the indoor fan motor and the line flow fan

(1) Remove the front panel.
(2) Remove the electrical box.
(3) Unhook the catches on the both sides of the nozzle

assembly.
(4) Remove the nozzle assembly.
(5) Remove the screws of the bearing support.
(6) Remove the screw of the heat exchanger unhook the catch.
(7) Lifting the heat exchanger, remove the bearing support.
(8) Loose the screw fixing the line flow fan, remove the line flow

fan.
(9) Remove the screws of the motor band, remove the fan

motor.

Photo 3

Photo 4

Catch

Heat exchanger

screw

Bearing support
screws

Vane motor

Screws
of the
vane
motor

Screw of the
electrical cover

Heat exchanger

38

Photo 5

Indoor fan motor

Screws
of the
motor
band

Line flow fan Screws of the

motor band

12-2. MU-C18TV -

E1

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the cabinet

(1) Remove the screws of the cabinet.
(2) Hold the bottom of the cabinet on the both side to remove

the cabinet.

Photo 1

Screws
of the
cabinet

Service
panel

Photo 2

2. Removing the electrical parts

(1) Remove the service panel and the cabinet.
(2) Remove the following parts.

•Compressor capacitor (C1)

•Outdoor fan capacitor (C2)

•Terminal block (TB)

Screws
of the
cabinet

Photo 3

Outdoor fan capacitor(C2)

39

Compressor capacitor(C1) Terminal block(TB)

OPERATING PROCEDURE

3. Removing the outdoor fan motor

(1) Remove the cabinet. (Refer to 1)
(2) Disconnect the connector remove the hooked lead wire

from the fan motor.

(3) Remove the propeller fan nut and remove the propeller fan.
(4) Remove screws fixing the fan motor.

Photo 4

PHOTOS

Hook

Connector

4. Removing the compressor

(1) Remove the cabinet. (Refer to 1)
(2) Remove the soundproof felt.
(3) Remove the terminal cover on the compressor
(4) Disconnect lead wires from the glass terminal of the com-

pressor.
(5) Recover gas from the refrigerant circuit.
(6) Disconnect the welded part of the discharge pipe.
(7) Disconnect the welded part of the suction pipe.
(8) Remove nuts fixing the compressor.
(9) Remove the compressor.

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.

2

(MPa).

Propeller fan

Photo 5

Compressor

Soundproof felt

Propeller fan nut

Discharge
pipe

Suction
pipe

40

Compressor set nuts

12-3. MU-C24TV -

E1

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the cabinet

(1) Remove the screws of the cabinet.
(2) Hold the bottom of the cabinet on the both side to remove

the cabinet.

Photo 1

Screws
of the
cabinet

Service
panel

Photo 2

2. Removing the electrical parts

(1) Remove the service panel and cabinet.
(2) Remove the following parts.

•Compressor capacitor (C1)

•Outdoor fan capacitor (C2)

•Compressor contactor (52C)

•Fan motor relay (X1)

•Terminal block (TB)

Screws
of the
cabinet

Photo 3

Outdoor fan
capacitor (C2)

Contactor
(52C)

Terminal
block (TB)

41

Compressor
capacitor (C1)

Fan motor
relay (X1)

OPERATING PROCEDURE

PHOTOS

3. Removing the outdoor fan motor

(1) Remove the cabinet. (Refer to 1)
(2) Disconnect the connector and remove the lead wire from

the fan motor.
(3) Remove the propeller fan nut and remove the propeller fan.
(4) Remove the screws fixing the fan motor.
(5) Remove the fan motor.

4. Removing the compressor

(1) Remove the cabinet. (Refer to 1)
(2) Remove the soundproof felt.
(3) Remove the terminal cover on the compressor.
(4) Disconnect lead wires from the glass terminal of the com-

pressor.
(5) Recover gas from the refrigerant circuit.
(6) Disconnect the welded part of the discharge pipe.
(7) Disconnect the welded part of the suction pipe.
(7) Remove the nuts fixing the compressor.
(8) Remove the compressor.

Photo 4

Propeller fan

Photo 5

Glass
terminal

Lead clamp

Hook

Propeller fan nut

Connector

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.

2

(MPa).

Suction

pipe
Discharge
pipe

Compressor

Compressor set nuts

42

13

E02 141 970
E02 143 234
E02 138 000
E02 138 010
E02 143 067
E02 141 100
E02 516 007

1
2
3
4
5
6
7

INSTALLATION PLATE
BOX (WH)
FRONT PANEL ASSEMBLY(WH)
GRILLE (WH)
SCREW CAP (WH)
AIR FILTER
LAMP PANEL (WH)

Symbol

in Wiring

Diagram

Q'ty/unit

Including 4,5,7

3PCS/SET

RemarksPart No.

NO.

Part Name

1
1
1
1
3
2
1

1
1
1
1
3
2
1

MS-C18TV -

E1

(WH)

MS-C24TV -

E1

(WH)

E02 141 620
E02 138 667
E02 176 667
E02 138 666

8
9

10

INDOOR HEAT EXCHANGER
UNION(LIQUID)
UNION(LIQUID)
UNION(GAS)

{6.35
{9.52
{15.88

1
1

1

1

1
1

PARTS LIST

MS-C18TV - (WH)
MS-C24TV - (WH)

E1

E1

13-1. INDOOR UNIT

STRUCTURAL PARTS

1
2

3

4

5

SCREW CAP

13-2. INDOOR UNIT

HEAT EXCHANGER

8

Optional parts
(See page 46.)

910

6

13-1. INDOOR UNIT STRUCTURAL PARTS

Part number that is circled is not shown in the illustration.

13-2. INDOOR UNIT HEAT EXCHANGER

43

MS-C18TV - (WH)

E02 141 302
E02 001 504
E02 141 509
E02 408 702
E02 143 235
E02 143 040
E02 138 307
E02 141 303
E02 138 395
E02 320 395
E02 611 375
E02 612 375
E02 138 308
E02 141 468
E02 611 452
E02 612 452
E02 141 300
E02 213 300
E02 001 505
E02 138 329
E02 336 385
E02 127 382
E02 205 381
E02 209 381
E02 138 383
E02 147 383

1
2
3
4
5
6
7
8

9

10
11

12
13

14
15

16
17
18

19

20

LINE FLOW FAN
SLEEVE BEARING
BEARING MOUNT
DRAIN HOSE
NOZZLE (WH)
VANE (WH)
INDOOR COIL THERMISTOR
VANE MOTOR
POWER SUPPLY CORD
POWER SUPPLY CORD
TERMINAL BLOCK
TERMINAL BLOCK
ROOM TEMPERATURE THERMISTOR
RECEIVER P. C. BOARD
ELECTRONIC CONTROL P.C. BOARD
ELECTRONIC CONTROL P.C. BOARD
INDOOR FAN MOTOR
INDOOR FAN MOTOR
FAN MOTOR RUBBER MOUNT
DISPLAY P.C. BOARD
VARISTOR
FUSE
THERMAL FUSE
THERMAL FUSE
SURGE ABSORBER
SURGE ABSORBER

Symbol

in Wiring

Diagram

Q'ty/unit

1
1
1
1
1
1
1
1

1

1
1
1

1

1
2
1
1
1

1

1

AUTO RESTART
AUTO RESTART
RA4V27 ­RA4V27 ­2PCS/SET

3.15A
93:
93:

Remarks

Part No.

NO.

Part Name

RT12

MV

TB
TB

RT11

MF
MF

NR11

F11
F12

F12
DSAR
DSAR

(WH)

MS-C24TV -

E1

1
1
1
1
1
1
1
1
1

1

1
1
1

1

2
1
1
1
1

1

(WH)

MS-C18TV -

E1

E02 611 426
E02 527 083

21
22

REMOTE CONTROLLER
REMOTE CONTROLLER HOLDER

1
1

1
1

MS-C24TV - (WH)

E1

E1

13-3. INDOOR UNIT

ELECTRICAL PARTS AND FUNCTIONAL PARTS

1
2

SLEEVE
BEARING

16

13

13-4. ACCESSORY P ART

AND REMOTE CONTROLLER

21 22

7

10

15

ROOM TEMPERATURE

11

THERMISTOR

12

3

4

14

5

6

INDOOR COIL
THERMISTOR

9

8

13-3. INDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS

13-4. ACCESSORY PART AND REMOTE CONTROLLER

44

MU-C18TV ­MU-C24TV -

E1

E1

13-5. OUTDOOR UNIT

STRUCTURAL PARTS,
ELECTRICAL PARTS
AND FUNCTIONAL PARTS

16

1

17

15
14

13

2

3

Part numbers that are circled are not shown in the illustration.

Part No.

NO.

E02 140 233

1

E02 141 232

2

E02 141 521

3

E02 141 501

4

E02 140 515

5

E02 139 515
E02 138 506

6

E02 624 900

7

E02 517 900
E02 217 290

8

E02 176 290
E02 624 661

9

E02 627 662

10

E02 625 662
E02 141 245

11

E02 144 301

12

E02 147 301
E02 217 630

13

E02 147 630
E02 197 374

14

E02 601 374
E02 056 374

15

E02 138 351

16

E02 082 353

17

E02 624 936

18

E02 625 936
E02 095 382

19

E02 010 342

20

E02 288 343

21

E02 229 381

22

E02 326 384

23

BACK PANEL
CABINET
GRILLE
PROPELLER FAN
MOTOR SUPPORT
MOTOR SUPPORT
COMPRESSOR RUBBER SET
COMPRESSOR
COMPRESSOR
BASE
BASE
STOP VALVE(GAS)
STOP VALVE(LIQUID)
STOP VALVE(LIQUID)
SERVICE PANEL
OUTDOOR FAN MOTOR
OUTDOOR FAN MOTOR
OUTDOOR HEAT EXCHANGER
OUTDOOR HEAT EXCHANGER
TERMINAL BLOCK
TERMINAL BLOCK
TERMINAL BLOCK
OUTDOOR FAN CAPACITOR
COMPRESSOR CAPACITOR
CAPILLARY TUBE
CAPILLARY TUBE
FUSE
COMPRESSOR CONTACTOR
FAN MOTOR RELAY
THERMOSTAT
CR SURGE ABSORBER

Part Name

Symbol

in Wiring

Diagram

MC
MC

MF
MF

TB
TB

TB2

C2
C1

F

52C

X1

26F1

CR

45

4

MU-C18TV -

1
1
1
1
1

4
1

1

1
1

1
1

1

1

1
1
1

1

5

Q'ty/unit

E1

6

MU-C24TV -

7

1
1
1
1

1
4

1

1
1

1
1

1

1

1
1
1
1

1
1
1
1
1
1

8

E1

Remarks

4RUBBERS/SET
PE-33VPEHT
NE-47VMHHT

{15.88
{ 6.35
{ 9.52

RA6V50 ­RA6V60 -

3P
4P

3.0+/440V
50+/440V

{3.0o{2.0o850
{3.0o{2.0o550

250V/2A

12

11

10
9

14

Part No.

Model

MAC-1100FT

MS-C18TV -

E1

MS-C24TV -

E1

Part No.

Model

MAC-1600DF

MS-C18TV -

E1

MS-C24TV -

E1

Deodorizing filter (Gray sponge type)

Air cleaning filter (White bellows type)

OPTIONAL PARTS

14-1. AIR CLEANING FILTER

● 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 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.

14-2. 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 thor-

oughly.

● 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.

46

HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN

CC

Copyright 2000 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD.
Issued in Dec. 2000. No.OB273 223
Made in Japan

New publication, effective Dec. 2000
Specifications subject to change without notice.