Mitsubishi MUX-19TV-E1, MUX-20TV-E1, MUX-25TV-E1 Service Manual

SPLIT-TYPE,AIR CONDITIONERS

SERVICE MANUAL

Multi system type
Models

No. OB284

MUX-19TV ­MUX-20TV ­MUX-25TV -

E1

E1

E1

CONTENTS

1. TECHNICAL CHANGES ····································2

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

3. INDOOR/OUTDOOR
CORRESPONDENCE TABLE ···························3

4. SPECIFICATION·················································3

5. NOISE CRITERIA CURVES······························ 6

6. OUTLINES AND DIMENSIONS························ 7

7. WIRING DIAGRAM ············································9

8. REFRIGERANT SYSTEM DIAGRAM··············10

MUX-19TV ­MUX-20TV ­MUX-25TV -

This manual describes technical data of outdoor unit.
For indoor unit refer to the service manuals No.OB227 REVISED EDITION-B and OB252 REVISED EDITION-A of corre­sponding models.

E1
E1
E1

9. PERFORMANCE CURVES······························14

10. TROUBLESHOOTING ······································26

11. DISASSEMBLY INSTRUCTIONS·····················32

12. PARTS LIST······················································35

13. OPTIONAL PARTS ···········································37

1

TECHNICAL CHANGES

MUX-19TV ­MUX-20TV ­MUX-25TV -

New models

2

E1

E1

E1

PART NAMES AND FUNCTIONS

OUTDOOR UNIT

MUX-19TV ­MUX-20TV ­MUX-25TV -

E1

E1

E1

Air inlet

(Back and side)

Piping

Drainage hose

Air outlet

2

3

❈There is no combination other than this table.

MUX-19TV-

E1

MUX-20TV-

E1

MUX-25TV-

E1

Combination of the

connectable indoor units

OUTDOOR UNIT

A:07, B:12 A:09, B:09, C:09 A:12, B:12

Outdoor model

Capacity
Dehumidification
Outdoor air flow
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
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
A

W

"





"



mm

kg

dB

rpm

kg
cc

Opetate 1 unit

A

3.5

1.6

6.01

1,280

92.6

5.68

0.33

2.65

Opetate 2 unit

A+B

3.5+2.2

1.6+0.8

8.94

2,005

97.5

8.37

0.57

2.74

MUX-19TV -

E1

Single phase

230V, 50Hz

Opetate 1 unit

B

2.2

0.8

Hi:2,460 / Lo:1,920

15

3.33
745

—

97.3

45.6

3.00

0.33

2.82

RH220VHAT (Room A) / RH135VHAT (Room B)

1,050 / 650
C-R 2.13/4.18
C-S 3.91/5.76

RA6V60-DA

WHT-BLK 90 BKL-YLW 54

BLK-RED 146

840✕640✕330

63
52

High:730 / Low:580

2

Room A : 0.87

Room B :1.0

520(MS56) / 300(MS56)

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Outdoor unit power supply

Indoor unit No.

INDOOR / OUTDOOR CORRESPONDENCE TABLE

4

NOTE: Test conditions are based on ISO 5151.

SPECIFICATION

Cooling : Indoor DB27°C / WB19°C

Outdoor DB35°C / WB(24°C)

3

Outdoor model

Capacity
Dehumidification
Outdoor air flow
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
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
A

W

"





"



mm

kg
dB

rpm

kg

cc

Opetate 1 unit

A

2.5

1.1

3.43
775

98.2

3.10

0.33

3.09

Opetate 1 unit

B or C

2.7

1.2

4.23
965

99.2

3.90

0.33

2.70

Opetate 2 unit

A+B or A+C

2.4+2.7

0.9+1.2

7.56

1,740

99.9

6.99

0.57

2.82

Opetate 3 unit

A+B+C

2.4+1.75✕2

0.9+0.3✕2

7.79

1,785

99.6

7.22

0.57

3.12

MUX-20TV -

E1

Single phase

230V, 50Hz

Opetate 2 unit

B+C

1.75✕2

0.3✕2

High: 2,460 / Low: 1,920

15

4.36

1,000

—

99.7
40

4.03

0.33

3.27

RH140VHAT (Room A) / RH174VHAT (Room B,C)

700/800
C-R 4.03/3.30
C-S 5.71/5.80

RA6V60-DA

WHT-BLK 90 BLK-YLW 54

BLK-RED 146

840✕640✕330

62
52

High: 730 / Low: 580

2

Room A : 0.8

Room B,C : 0.96

300(MS56) / 300(MS56)

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Outdoor unit power supply

Indoor unit No.

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C / WB19°C

Outdoor DB35°C / WB(24°C)

4

Outdoor model

Outdoor unit power supply

Indoor unit No.

Capacity
Dehumidification
Outdoor air flow

Capacity

Power outlet
Running current
Power input
Auxiliary heater
Power factor

Electrical

data

Starting current
Compressor motor current
Fan motor current



kW

R/h

K /h

A
A

W

A(kW)

%

A
A
A

Coefficient of performance(C.O.P)

Model
Output
Winding

Compressor

resistance(at20:)
Model
Winding

Fan

motor

resistance(at20:)
Dimensions WOHOD
Weight
Sound level
Fan speed

W

"

"

mm

kg

dB

rpm







Fan speed regulator
Refrigerant filling

Special

remarks

capacity(R22)
Refrigerating oil (Model)

kg
cc

NOTE: Test conditions are based on ISO 5151.

Cooling : Indoor DB27°C / WB19°C

Outdoor DB35°C / WB(24°C)

MUX-25TV -

Single phase

230V, 50Hz

Opetate 1 unit

A or B

3.5

1.6
High:2,760 / Low:1,920

6.11

1,350

96.1

5.79

0.32

2.52
RH231VHAT✕2

1,100✕2
C-R 2.13
C-S 3.91

RA6V60-EA

WHT-BLK 67 BLK-YLW 75

BLK-RED 73

840✕640✕330

High: 810 / Low: 580

Room A: 0.9
Room B: 0.9

520(MS56) / 520(MS56)

25

—

56

65
54

E1

Opetate 2 unit

A+B

3.5✕2

1.6✕2

12.42
2,760

96.6

11.81

0.61

2.46

2

5

NOISE CRITERIA CURVES5

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions.

Cooling :DB35: WB24:

High

SPEED

52

SPL(dB(A)) LINE

MUX-19TV - E1
MUX-20TV - E1

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

Test conditions.

Cooling :DB35: WB24:

High

SPEED

54

SPL(dB(A)) LINE

MUX-25TV - E1

6

6

500

840 61.7

264.2

10°

10°

Service panel

Open as a rule
500mm or more if
the front and both
sides are open

100mm or more
200mm or more if
there are obstacles
to both sides

Open as a rule
500mm or more if the back,
both sides and top are open

350mm or more

100mm or more

B UNIT
A UNIT

Gas refrigerant
pipe joint
Refrigerant pipe
(flared) {9.52

Gas refrigerant
pipe joint
Refrigerant pipe
(flared) {12.7

Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) {6.35

66.2

80.7

121.3

40

438.4
Air in

Air out

Air in

272.9

100.3

125.6

319.8

34

330

640

360.6

75.8

505050

Drainage
3hoies {33

}
}

OUTLINES AND DIMENSIONS

OUTDOOR UNIT

MUX-19TV-

E1

Unit: mm

OUTDOOR UNIT

MUX-20TV-

E1

Drainage
3hoies {33

125.6
Air in

34

100.3

319.8

272.9

438.4
Air in

Air out

500

40

840 61.7

121.3

330

640

66.2

7

100mm or more

360.6
Open as a rule

500mm or more if the back,
both sides and top are open

10°

10°

}
}
}

264.2

Service panel

Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) {6.35

C UNIT
B UNIT
A UNIT

5050505050

75.8

Unit: mm

Open as a rule
500mm or more if
the front and both
sides are open

100mm or more
200mm or more if
there are obstacles
to both sides

350mm or more

Gas refrigerant
pipe joint
Refrigerant pipe
(flared) {9.52

OUTDOOR UNIT

MUX-25TV-

E1

Drainage
3hoies {33

125.6
Air in

34

100.3

319.8

272.9

500

438.4
Air in

Air out

840 61.7

121.3

Unit: mm

Open as a rule
500mm or more if
the front and both
sides are open

100mm or more

100mm or more

330

360.6
Open as a rule

500mm or more if the back,

40

640

both sides and top are open

10°

10°

B UNIT

}

A UNIT

}

Service panel

Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) {6.35

505050

200mm or more if
there are obstacles
to both sides

350mm or more

80.7

264.2

Gas refrigerant
pipe joint

75.8

Refrigerant pipe
(flared) {12.7

8

7

1

2

3

123

2
1

3

(3.15A)

RED

RED

NR61

T61

1

2

43

43

C61

LD1

WHT

WHT

OUTDOOR CONTROL PC BOARD

BRN

BLU

BRN

BLU

BRN

X522

X521

BLK

SR862

SR861

LD2

RED

BLK

YLW

WHT

652341

BRN

BLU

BLU

TB4

CN91

CN90

TB2

X521X522

F61

CN73 CN71

TO INDOOR
UNIT B
CONNECTING

12V

PE

CIRCUIT BREAKER

GRN/YLW

ORN

BLU

YLW

BLU

RED

RED

TO INDOOR
UNIT A
CONNECTING

12V

1

2

C2

C1

RC

S

CR

S

MC2

MF61

MC1

BLK

TB1

POWER SUPPLY
~/N
230V
50Hz

1

2

L
N

SYMBOL

C1

C2
C61
F61

MC1

SYMBOL

MC2
MF61
NR61

SR861
SR862

SYMBOL

TB1

TB2~TB4

T61
X521
X522

NAME
COMPRESSOR CAPACITOR (MC1)
COMPRESSOR CAPACITOR (MC2)
FAN MOTOR CAPACITOR
FUSE (3.15A)
COMPRESSOR (INNER PROTECTOR)

NAME
COMPRESSOR (INNER PROTECTOR)
FAN MOTOR (INNER PROTECTOR)
SURGE ABSORBER
FAN MOTOR RELAY
FAN MOTOR RELAY

NAME
TERMINAL BLOCK
TERMINAL BLOCK
TRANSFORMER
COMPRESSOR CONTACTOR (MC1)
COMPRESSOR CONTACTOR (MC2)

1

2

3

1

2

3

123

2
1

3

(3.15A)

123123123

RED

RED

21R421R3

NR61

T61

1

2

43

43

C61

LD1

WHT

WHT

OUTDOOR CONTROL PC BOARD

BRN

BLU

BRN

BLU

BRN

BLU

BLU

X522

X521

BLK

SR865

SR866

SR863

SR862

SR861

LD2

RED

BLK

YLW

WHT

652341

BRN

BLU

BLU

TB4

CN86

CN85

CN81

CN91

CN90

TB3

TB2

X521

BLU

BLU

X522

BLU

BLU

21RB

F61

CN74 CN73 CN71

TO INDOOR
UNIT B
CONNECTING

12V

PE

CIRCUIT BREAKER

GRN/YLW

WHT

BLU

ORN

BLU

YLW

BLU

RED

RED

TO INDOOR
UNIT A
CONNECTING

12V

1

2

1

2

C2

C1

RC

S

CR

S

MC2

TO INDOOR
UNIT C
CONNECTING

12V

MF61

MC1

BLK

TB1

POWER SUPPLY
~/N
230V
50Hz

1

2

L
N

SYMBOL

C1

C2
C61
F61

MC1
MC2

MF61

SYMBOL

NR61
SR861
SR862
SR863
SR865
SR866

TB1

SYMBOL

TB2~TB4

T61
X521
X522
21RB
21R3
21R4

NAME
COMPRESSOR CAPACITOR (MC1)
COMPRESSOR CAPACITOR (MC2)
FAN MOTOR CAPACITOR
FUSE (3.15A)
COMPRESSOR (INNER PROTECTOR)
COMPRESSOR (INNER PROTECTOR)
FAN MOTOR (INNER PROTECTOR)

NAME
SURGE ABSORBER
FAN MOTOR RELAY
FAN MOTOR RELAY
RELAY (21RB)
RELAY (C) (21R4)
RELAY (B) (21R3)
TERMINAL BLOCK

NAME
TERMINAL BLOCK
TRANSFORMER
COMPRESSOR CONTACTOR (MC1)
COMPRESSOR CONTACTOR (MC2)
SOLENOID COIL
SOLENOID COIL (B)
SOLENOID COIL (C)

WIRING DIAGRAM

MUX-19TV - MUX-25TV -

OUTDOOR UNIT

MODELS WIRING DIAGRAM

E1E1

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

MUX-20TV -

OUTDOOR UNIT

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

E1

MODEL WIRING DIAGRAM

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

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

9

VG79B082H01

VG79B081H01

8

REFRIGERANT SYSTEM DIAGRAM

MSC-07RV­MSC-12RV-

INDOOR UNIT

UNIT A

MSC-12RV

MSC-07RV

E3

UNIT B

E3

E3

E3

Indoor

heat

exchanger

Indoor coil
thermistor
RT12

Indoor

heat

exchanger

Room
temperature
thermistor
RT11

Room
temperature
thermistor
RT11

Refrigerant pipe

{12.7

(With insulation)

Flared connection

Refrigerant pipe

{6.35

(With insulation)

Refrigerant pipe

{9.52

(With insulation)

Flared connection

Stop valve
with service port

Stop valve

Capillary tube

{

Stop valve
with service port

3.0 ✕{1.6 ✕ 660

Compressor(MC1)

MUX-19TV-

OUTDOOR UNIT

E1

Outdoor

heat

exchanger

Unit: mm

Indoor coil
thermistor
RT12

Refrigerant pipe

{6.35
(With insulation)

Stop valve

Capillary tube

{

3.0 ✕{1.4 ✕ 810

Compressor(MC2)

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Max. limits

MUX-19TV

UNIT No.

,

Outdoor unit

BA

Indoor unit B

MSC-07RV

E1

L

E3

LLHH

Additional piping max. length 15m

Pipe length

15m

Indoor unit A

MSC-12RV

E3

Height difference (H)

10m

ADDITIONAL REFRIGERANT CHARGE (R22:g)

A
B

UNIT
UNIT

Outdoor unit

precharged (g)

870

1,000

7m

0 153045607590105120

8m 9m 10m 11m 12m 13m 14m 15m

Refrigerant piping length (one way)

PIPING PREPARATION

1 Table below shows the specifications of pipes commercially available.

UNIT No. Pipe

BA

and UNIT For liquid 6.35 8 mm

B

UNIT For gas 9.52 8 mm

A

UNIT For gas 12.7 8 mm

2 Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.
3 Refrigerant bending radius must be 10cm or more.

Outside diameter Insulation

mm thickness

10

No. of bends

10

Insulation material

Heat resisting foam plastic

0.045 specific gravity

Unit: mm

MSC-09RV-

INDOOR UNIT

UNIT A

MSC-09RV

MSC-09RV

E3

UNIT B

E3

E3

Indoor

heat

exchanger

Indoor coil
thermistor
RT12

Indoor

heat

exchanger

Indoor coil
thermistor
RT12

Room
temperature
thermistor
RT11

Room
temperature
thermistor
RT11

Room
temperature
thermistor
RT11

Refrigerant pipe

{9.52

(With insulation)

Flared connection

Refrigerant pipe

{6.35

(With insulation)

Refrigerant pipe

{9.52

(With insulation)

Flared connection

Refrigerant pipe

{6.35

(With insulation)

Refrigerant pipe

{9.52

Stop valve
with service port

Stop valve

Stop valve
with service port

Stop valve

Solenoid valve
21R3

{

Capillary tube

{

3.0✕{1.4 ✕ 450

Capillary tube

3.0✕{1.6 ✕ 900

Compressor(MC1)

Solenoid valve
21RB

Capillary tube

{

3.0✕{1.6 ✕ 1,000

Compressor(MC2)

Capillary tube

{

3.0✕{1.8 ✕ 450

MUX-20TV-

E1

OUTDOOR UNIT

Outdoor

heat

exchanger

UNIT C

MSC-09RV

E3

Indoor

heat

exchanger

Indoor coil
thermistor
RT12

Flared connection

Refrigerant pipe
{6.35

(With insulation)

Stop valve
with service port

Solenoid valve
21R4

Stop valve

Capillary tube

{

3.0✕{1.6 ✕ 900

Refrigerant flow

11

LC

Indoor unit C

MSC-09RV - E3

HL

B HLA

H

Indoor unit B

MSC-09RV - E3

Indoor unit A

MSC-09RV - E3

Outdoor unit

MUX-20TV - E1

MUX-20TV-

7m

0

10m011m1012m2013m3014m4015m5016m6017m7018m8019m9020m

100

21m

110

22m

120

23m

130

24m

140

25m

150

26m

160

27m

170

28m

180

29m

190

30m

200

8m

15

9m

30

10m4511m

60

12m7513m

90

14m

105

15m

120

Refrigerant piping length (one way)

A

unit

Refrigerant piping length (one way, 2 unit total)

Outdoor unit

precharged (g)

800

Outdoor unit

precharged (g)

960

B

unit + C unit

E1

MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Max.
limits

UNIT No.

A
B
C

LA
LB
LC

Pipe length

15m
15m

15m

L

B

+

LC

Total

30m

Height difference (H)

10m
10m
10m

Note: The length of piping to individual units (A,B,C) should not exceed 10 meters.

If units B and C are linked, the maximum combined length of piping should not exceed 15 meters.

ADDITIONAL REFRIGERANT CHARGE (R22:g)

PIPING PREPARATION

1Table below shows the specifications of pipes commercially available.

UNIT No.

BA

, and

C

unit

Pipe

For liquid

For gas

Outside diameter

mm

6.35

9.52

Insulation
thickness

8mm
8mm

No. of bends

10
10
10

Insulation material

Heat resisting foam plastic

0.045 specific gravity

Total

15

2Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.
3Refrigerant bending radius must be 10cm or more.

12

MSC-12RV-

E3

MUX-25TV-

E1

Unit: mm

INDOOR UNIT

UNIT A

MSC-12RV

MSC-12RV

E3

UNIT B

E3

Room
temperature
thermistor
RT11

Indoor

heat

exchanger

Indoor coil
thermistor
RT12

Room
temperature
thermistor
RT11

Indoor

heat

exchanger

Indoor coil
thermistor
RT12

Refrigerant pipe

{12.7

(With insulation)

Flared connection

Refrigerant pipe

{6.35

(With insulation)

Refrigerant pipe

{12.7

(With insulation)

Flared connection

Refrigerant pipe

{6.35
(With insulation)

Stop valve
with service port

Stop valve

Capillary tube

{

Stop valve
with service port

Stop valve

Capillary tube

{

Compressor(MC1)

3.0 ✕{1.6 ✕ 550

Compressor(MC2)

3.0 ✕{1.6 ✕ 600

OUTDOOR UNIT

Outdoor

heat

exchanger

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Max. limits

MUX-25TV

UNIT No.

BA

,

Outdoor unit

MSC-12RV

E1

L

Indoor unit B

E3

LLHH

Additional piping max. length 10m

Pipe length

15m

Indoor unit A

MSC-12RV

E3

Height difference (H)

10m

ADDITIONAL REFRIGERANT CHARGE (R22:g)

A
B

UNIT
UNIT

Outdoor unit

precharged (g)

900
900

7m

0 153045607590105120

8m 9m 10m 11m 12m 13m 14m 15m

Refrigerant piping length (one way)

PIPING PREPARATION

1 Table below shows the specifications of pipes commercially available.

UNIT No. Pipe

BA

and UNIT

For liquid 6.35 8 mm Heat resisting foam plastic

For gas 12.7 8 mm 0.045 specific gravity

2 Ensure that the 2 refrigerant pipes are well insulated to prevent condensation.
3 Refrigerant bending radius must be 10cm or more.

Outside diameter Insulation

mm thickness

13

No. of bends

10

Insulation material

9

0.8

0.7

0.6

0.5

0.4

0.3

(kgf/F•G)(MPa•G)

Outdoor low pressure (kgf/F•G)

7

6

5

4

3

8

0.7

0.6

0.5

0.4

0.3

(kgf/F•G)(MPa•G)

Outdoor low pressure (kgf/F•G)

6

5

4

3

7

Outdoor unit current (A)

Outdoor unit current (A)

Single operation (Unit A) Single operation (Unit B)

0.7

0.6

0.5

0.4

0.3

0.2

(kgf/F•G)(MPa•G)

Outdoor low pressure (kgf/F•G)

6

5

4

3

2

7

Outdoor unit current (A)

Single operation (Unit A or B)

7

6

3

4

3

2

7

6

4

5

3

8

4

5

0.8

PERFORMANCE CURVES

MSC-07RV ­MSC-09RV ­MSC-12RV -

E3

MUX-19TV -

E3

MUX-20TV -

E3

MUX-25TV -

E1

E1

E1

9-1-1.CAPACITY AND THE INPUT CURVES

(ONE INDOOR UNIT WITH ONE OUTDOOR UNIT)

8.9

11.6

8.2

10.6

7.4

9.6

8.7

6.7

7.8

6.0

6.9

5.4

Indoor air WB temperature

difference (deg.)

MUX-19TV- E1

MUX-19TV- E1

(MSC-12RV- E3 )

(MSC-07RV- E3 )

10.2

9.3

8.5

7.7

6.9

6.1

MUX-20TV- E1

(Single unit A)

(MSC-09RV- E3 )

11.2

10.6

10.2

9.3

8.4

7.5

6.6

MUX-20TV- E1

(MSC-09RV- E3 )

(Single unit B or C)

9.6

8.7

7.8

6.9

MUX-25TV- E1

(MSC-12RV- E3 )

11.6

9-1-2.OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

COOL operation

① Both indoor and outdoor unit are under same temperature/humidity condition.

Dry-bulb temperature Relative humidity (%)

20
25
30

➁ Air flow should be set at MAX.

MUX-19TV-

E1

50
60
70

MUX-25TV-

E1

14

MUX-20TV-

(kgf/F•G)(MPa•G)

Outdoor low pressure (kgf/F•G)

0.8

8

0.7

7

0.6

6

0.5

5

0.4

4

0.3

3

E1

Single operation (Unit A)

4

3

Outdoor unit current (A)

2 2

(kgf/F•G)(MPa•G)

Outdoor low pressure (kgf/F•G)

0.8

8

0.7

7

0.6

6

0.5

5

0.4

4

0.3

3

Single operation (Unit B or C)

6

5

4

3

Outdoor unit current (A)

15

PERFORMANCE DATA

INDOOR INDOOR

21 25 27 30

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 2.2 kW INPUT(Total=Indoor+Outdoor) : 780 W SHF : 0.74

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

2.59

2.70

2.59

2.70

2.81

2.59

2.70

2.81

2.95

2.59

2.70

2.81

2.95

3.04

2.59

2.70

2.81

2.95

3.04

2.59

2.70

2.81

2.95

3.04

2.59

2.70

2.81

2.95

3.04

1.45

1.19

1.55

1.29

1.01

1.76

1.51

1.23

0.94

1.96

1.72

1.46

1.18

0.85

2.17

1.94

1.68

1.42

1.09

2.38

2.16

1.91

1.65

1.34

2.59

2.37

2.13

1.89

1.58

0.56

0.44

0.60

0.48

0.36

0.68

0.56

0.44

0.32

0.76

0.64

0.52

0.40

0.28

0.84

0.72

0.60

0.48

0.36

0.92

0.80

0.68

0.56

0.44

1.00

0.88

0.76

0.64

0.52

624
655
624
655
679
624
655
679
710
624
655
679
710
749
624
655
679
710
749
624
655
679
710
749
624
655
679
710
749

2.48

2.59

2.48

2.59

2.71

2.48

2.59

2.71

2.84

2.48

2.59

2.71

2.84

2.95

2.48

2.59

2.71

2.84

2.95

2.48

2.59

2.71

2.84

2.95

2.48

2.59

2.71

2.84

2.95

1.39

1.14

1.49

1.24

0.97

1.68

1.45

1.19

0.91

1.88

1.65

1.41

1.14

0.83

2.08

1.86

1.62

1.36

1.06

2.28

2.07

1.84

1.59

1.30

2.48

2.27

2.06

1.82

1.53

0.56

0.44

0.60

0.48

0.36

0.68

0.56

0.44

0.32

0.76

0.64

0.52

0.40

0.28

0.84

0.72

0.60

0.48

0.36

0.92

0.80

0.68

0.56

0.44

1.00

0.88

0.76

0.64

0.52

655
694
655
694
722
655
694
722
749
655
694
722
749
788
655
694
722
749
788
655
694
722
749
788
655
694
722
749
788

2.38

2.51

2.38

2.51

2.64

2.38

2.51

2.64

2.77

2.38

2.51

2.64

2.77

2.90

2.38

2.51

2.64

2.77

2.90

2.38

2.51

2.64

2.77

2.90

2.38

2.51

2.64

2.77

2.90

1.33

1.10

1.43

1.20

0.95

1.62

1.40

1.16

0.89

1.81

1.61

1.37

1.11

0.81

2.00

1.81

1.58

1.33

1.05

2.19

2.01

1.80

1.55

1.28

2.38

2.21

2.01

1.77

1.51

0.56

0.44

0.60

0.48

0.36

0.68

0.56

0.44

0.32

0.76

0.64

0.52

0.40

0.28

0.84

0.72

0.60

0.48

0.36

0.92

0.80

0.68

0.56

0.44

1.00

0.88

0.76

0.64

0.52

686
710
686
710
741
686
710
741
772
686
710
741
772

811
686
710
741
772

811
686
710
741
772

811
686
710
741
772

811

2.29

2.42

2.29

2.42

2.53

2.29

2.42

2.53

2.68

2.29

2.42

2.53

2.68

2.82

2.29

2.42

2.53

2.68

2.82

2.29

2.42

2.53

2.68

2.82

2.29

2.42

2.53

2.68

2.82

1.28

1.06

1.37

1.16

0.91

1.56

1.36

1.11

0.86

1.74

1.55

1.32

1.07

0.79

1.92

1.74

1.52

1.29

1.01

2.10

1.94

1.72

1.50

1.24

2.29

2.13

1.92

1.72

1.46

0.56

0.44

0.60

0.48

0.36

0.68

0.56

0.44

0.32

0.76

0.64

0.52

0.40

0.28

0.84

0.72

0.60

0.48

0.36

0.92

0.80

0.68

0.56

0.44

1.00

0.88

0.76

0.64

0.52

718
741
718
741
772
718
741
772
811
718
741
772
811
835
718
741
772
811
835
718
741
772
811
835
718
741
772
811
835

COOL operation (230V)

MSC-07RV - (Single) : MUX-19TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

16

PERFORMANCE DATA

INDOOR INDOOR

35 40 46

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 2.2 kW INPUT(Total=Indoor+Outdoor) : 780 W SHF : 0.74

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

2.16

2.27

2.16

2.27

2.40

2.16

2.27

2.40

2.53

2.16

2.27

2.40

2.53

2.66

2.16

2.27

2.40

2.53

2.66

2.16

2.27

2.40

2.53

2.66

2.16

2.27

2.40

2.53

2.66

1.21

1.00

1.29

1.09

0.86

1.47

1.27

1.06

0.81

1.64

1.45

1.25

1.01

0.75

1.81

1.63

1.44

1.21

0.96

1.98

1.81

1.63

1.42

1.17

2.16

1.99

1.82

1.62

1.38

0.56

0.44

0.60

0.48

0.36

0.68

0.56

0.44

0.32

0.76

0.64

0.52

0.40

0.28

0.84

0.72

0.60

0.48

0.36

0.92

0.80

0.68

0.56

0.44

1.00

0.88

0.76

0.64

0.52

764
796
764
796
827
764
796
827
858
764
796
827
858
889
764
796
827
858
889
764
796
827
858
889
764
796
827
858
889

1.98

2.11

1.98

2.11

2.24

1.98

2.11

2.24

2.38

1.98

2.11

2.24

2.38

2.51

1.98

2.11

2.24

2.38

2.51

1.98

2.11

2.24

2.38

2.51

1.98

2.11

2.24

2.38

2.51

1.11

0.93

1.19

1.01

0.81

1.35

1.18

0.99

0.76

1.50

1.35

1.17

0.95

0.70

1.66

1.52

1.35

1.14

0.90

1.82

1.69

1.53

1.33

1.10

1.98

1.86

1.71

1.52

1.30

0.56

0.44

0.60

0.48

0.36

0.68

0.56

0.44

0.32

0.76

0.64

0.52

0.40

0.28

0.84

0.72

0.60

0.48

0.36

0.92

0.80

0.68

0.56

0.44

1.00

0.88

0.76

0.64

0.52

811
835
811
835
874
811
835
874
897
811
835
874
897
928
811
835
874
897
928
811
835
874
897
928
811
835
874
897
928

1.83

1.96

1.83

1.96

2.09

1.83

1.96

2.09

2.24

1.83

1.96

2.09

2.24

2.35

1.83

1.96

2.09

2.24

2.35

1.83

1.96

2.09

2.24

2.35

1.83

1.96

2.09

2.24

2.35

1.02

0.86

1.10

0.94

0.75

1.24

1.10

0.92

0.72

1.39

1.25

1.09

0.90

0.66

1.53

1.41

1.25

1.08

0.85

1.68

1.57

1.42

1.26

1.04

1.83

1.72

1.59

1.44

1.22

0.56

0.44

0.60

0.48

0.36

0.68

0.56

0.44

0.32

0.76

0.64

0.52

0.40

0.28

0.84

0.72

0.60

0.48

0.36

0.92

0.80

0.68

0.56

0.44

1.00

0.88

0.76

0.64

0.52

842
881
842
881
905
842
881
905
936
842
881
905
936
967
842
881
905
936
967
842
881
905
936
967
842
881
905
936
967

COOL operation (230V)

MSC-07RV - (Single) : MUX-19TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

17

PERFORMANCE DATA

INDOOR INDOOR

21 25 27 30

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1320W SHF : 0.67

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

4.11

4.29

4.11

4.29

4.46

4.11

4.29

4.46

4.69

4.11

4.29

4.46

4.69

4.83

4.11

4.29

4.46

4.69

4.83

4.11

4.29

4.46

4.69

4.83

4.11

4.29

4.46

4.69

4.83

2.02

1.59

2.18

1.76

1.29

2.51

2.10

1.65

1.17

2.84

2.44

2.01

1.55

1.01

3.17

2.79

2.37

1.92

1.40

3.50

3.13

2.72

2.30

1.79

3.82

3.47

3.08

2.67

2.17

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

1056
1109
1056
1109
1148
1056
1109
1148
1201
1056
1109
1148
1201
1267
1056
1109
1148
1201
1267
1056
1109
1148
1201
1267
1056
1109
1148
1201
1267

3.94

4.11

3.94

4.11

4.31

3.94

4.11

4.31

4.52

3.94

4.11

4.31

4.52

4.69

3.94

4.11

4.31

4.52

4.69

3.94

4.11

4.31

4.52

4.69

3.94

4.11

4.31

4.52

4.69

1.93

1.52

2.09

1.69

1.25

2.40

2.02

1.59

1.13

2.72

2.34

1.94

1.49

0.98

3.03

2.67

2.28

1.85

1.36

3.35

3.00

2.63

2.21

1.74

3.66

3.33

2.97

2.57

2.11

1109
1175
1109
1175
1221
1109
1175
1221
1267
1109
1175
1221
1267
1333
1109
1175
1221
1267
1333
1109
1175
1221
1267
1333
1109
1175
1221
1267
1333

3.78

3.99

3.78

3.99

4.20

3.78

3.99

4.20

4.41

3.78

3.99

4.20

4.41

4.62

3.78

3.99

4.20

4.41

4.62

3.78

3.99

4.20

4.41

4.62

3.78

3.99

4.20

4.41

4.62

1.85

1.48

2.00

1.64

1.22

2.31

1.96

1.55

1.10

2.61

2.27

1.89

1.46

0.97

2.91

2.59

2.23

1.81

1.34

3.21

2.91

2.56

2.16

1.71

3.52

3.23

2.90

2.51

2.08

1162

1201

1162
1201
1254

1162
1201
1254
1307

1162
1201
1254
1307
1373

1162
1201
1254
1307
1373

1162
1201
1254
1307
1373

1162
1201
1254
1307
1373

3.64

3.85

3.64

3.85

4.03

3.64

3.85

4.03

4.27

3.64

3.85

4.03

4.27

4.48

3.64

3.85

4.03

4.27

4.48

3.64

3.85

4.03

4.27

4.48

3.64

3.85

4.03

4.27

4.48

1.78

1.42

1.93

1.58

1.17

2.22

1.89

1.49

1.07

2.51

2.19

1.81

1.41

0.94

2.80

2.50

2.13

1.75

1.30

3.09

2.81

2.46

2.09

1.66

3.39

3.12

2.78

2.43

2.02

1214
1254
1214
1254
1307
1214
1254
1307
1373
1214
1254
1307
1373
1412
1214
1254
1307
1373
1412
1214
1254
1307
1373
1412
1214
1254
1307
1373
1412

COOL operation (230V)

MSC-12RV - (Single) : MUX-19TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

18

PERFORMANCE DATA

INDOOR INDOOR

35 40 46

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1320W SHF : 0.67

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

3.43

3.61

3.43

3.61

3.82

3.43

3.61

3.82

4.03

3.43

3.61

3.82

4.03

4.24

3.43

3.61

3.82

4.03

4.24

3.43

3.61

3.82

4.03

4.24

3.43

3.61

3.82

4.03

4.24

1.68

1.33

1.82

1.48

1.11

2.09

1.77

1.41

1.01

2.37

2.05

1.72

1.33

0.89

2.64

2.34

2.02

1.65

1.23

2.92

2.63

2.33

1.97

1.57

3.19

2.92

2.63

2.29

1.91

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

1294
1346
1294
1346
1399
1294
1346
1399
1452
1294
1346
1399
1452
1505
1294
1346
1399
1452
1505
1294
1346
1399
1452
1505
1294
1346
1399
1452
1505

3.15

3.36

3.15

3.36

3.57

3.15

3.36

3.57

3.78

3.15

3.36

3.57

3.78

3.99

3.15

3.36

3.57

3.78

3.99

3.15

3.36

3.57

3.78

3.99

3.15

3.36

3.57

3.78

3.99

1.54

1.24

1.67

1.38

1.04

1.92

1.65

1.32

0.95

2.17

1.92

1.61

1.25

0.84

2.43

2.18

1.89

1.55

1.16

2.68

2.45

2.18

1.85

1.48

2.93

2.72

2.46

2.15

1.80

1373
1412
1373
1412
1478
1373
1412
1478
1518
1373
1412
1478
1518
1571
1373
1412
1478
1518
1571
1373
1412
1478
1518
1571
1373
1412
1478
1518
1571

2.91

3.12

2.91

3.12

3.33

2.91

3.12

3.33

3.57

2.91

3.12

3.33

3.57

3.75

2.91

3.12

3.33

3.57

3.75

2.91

3.12

3.33

3.57

3.75

2.91

3.12

3.33

3.57

3.75

1.42

1.15

1.54

1.28

0.96

1.77

1.53

1.23

0.89

2.00

1.78

1.50

1.18

0.79

2.24

2.02

1.76

1.46

1.09

2.47

2.27

2.03

1.75

1.39

2.70

2.52

2.29

2.03

1.69

1426
1492
1426
1492
1531
1426
1492
1531
1584
1426
1492
1531
1584
1637
1426
1492
1531
1584
1637
1426
1492
1531
1584
1637
1426
1492
1531
1584
1637

COOL operation (230V)

MSC-12RV - (Single) : MUX-19TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

19

PERFORMANCE DATA

INDOOR INDOOR

21 25 27 30

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 2.5 kW INPUT(Total=Indoor+Outdoor) : 810W SHF : 0.70

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

2.94

3.06

2.94

3.06

3.19

2.94

3.06

3.19

3.35

2.94

3.06

3.19

3.35

3.45

2.94

3.06

3.19

3.35

3.45

2.94

3.06

3.19

3.35

3.45

2.94

3.06

3.19

3.35

3.45

1.53

1.23

1.65

1.35

1.02

1.88

1.59

1.28

0.94

2.12

1.84

1.53

1.21

0.83

2.35

2.08

1.79

1.47

1.10

2.59

2.33

2.04

1.74

1.38

2.82

2.57

2.30

2.01

1.66

0.52

0.40

0.56

0.44

0.32

0.64

0.52

0.40

0.28

0.72

0.60

0.48

0.36

0.24

0.80

0.68

0.56

0.44

0.32

0.88

0.76

0.64

0.52

0.40

0.96

0.84

0.72

0.60

0.48

0.52

0.40

0.56

0.44

0.32

0.64

0.52

0.40

0.28

0.72

0.60

0.48

0.36

0.24

0.80

0.68

0.56

0.44

0.32

0.88

0.76

0.64

0.52

0.40

0.96

0.84

0.72

0.60

0.48

0.52

0.40

0.56

0.44

0.32

0.64

0.52

0.40

0.28

0.72

0.60

0.48

0.36

0.24

0.80

0.68

0.56

0.44

0.32

0.88

0.76

0.64

0.52

0.40

0.96

0.84

0.72

0.60

0.48

0.52

0.40

0.56

0.44

0.32

0.64

0.52

0.40

0.28

0.72

0.60

0.48

0.36

0.24

0.80

0.68

0.56

0.44

0.32

0.88

0.76

0.64

0.52

0.40

0.96

0.84

0.72

0.60

0.48

648
680
648
680
705
648
680
705
737
648
680
705
737
778
648
680
705
737
778
648
680
705
737
778
648
680
705
737
778

2.81

2.94

2.81

2.94

3.08

2.81

2.94

3.08

3.23

2.81

2.94

3.08

3.23

3.35

2.81

2.94

3.08

3.23

3.35

2.81

2.94

3.08

3.23

3.35

2.81

2.94

3.08

3.23

3.35

1.46

1.18

1.58

1.29

0.98

1.80

1.53

1.23

0.90

2.03

1.76

1.48

1.16

0.80

2.25

2.00

1.72

1.42

1.07

2.48

2.23

1.97

1.68

1.34

2.70

2.47

2.21

1.94

1.61

680
721
680
721
749
680
721
749
778
680
721
749
778
818
680
721
749
778
818
680
721
749
778
818
680
721
749
778
818

2.70

2.85

2.70

2.85

3.00

2.70

2.85

3.00

3.15

2.70

2.85

3.00

3.15

3.30

2.70

2.85

3.00

3.15

3.30

2.70

2.85

3.00

3.15

3.30

2.70

2.85

3.00

3.15

3.30

1.40

1.14

1.51

1.25

0.96

1.73

1.48

1.20

0.88

1.94

1.71

1.44

1.13

0.79

2.16

1.94

1.68

1.39

1.06

2.38

2.17

1.92

1.64

1.32

2.59

2.39

2.16

1.89

1.58

713
737
713
737
770
713
737
770
802
713
737
770
802
842
713
737
770
802
842
713
737
770
802
842
713
737
770
802
842

2.60

2.75

2.60

2.75

2.88

2.60

2.75

2.88

3.05

2.60

2.75

2.88

3.05

3.20

2.60

2.75

2.88

3.05

3.20

2.60

2.75

2.88

3.05

3.20

2.60

2.75

2.88

3.05

3.20

1.35

1.10

1.46

1.21

0.92

1.66

1.43

1.15

0.85

1.87

1.65

1.38

1.10

0.77

2.08

1.87

1.61

1.34

1.02

2.29

2.09

1.84

1.59

1.28

2.50

2.31

2.07

1.83

1.54

745
770
745
770
802
745
770
802
842
745
770
802
842
867
745
770
802
842
867
745
770
802
842
867
745
770
802
842
867

COOL operation (230V)

MSC-09RV - (Single Room A) : MUX-20TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

20

PERFORMANCE DATA

INDOOR INDOOR

35 40 46

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 2.5 kW INPUT(Total=Indoor+Outdoor) : 810W SHF : 0.70

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

2.45

2.58

2.45

2.58

2.73

2.45

2.58

2.73

2.88

2.45

2.58

2.73

2.88

3.03

2.45

2.58

2.73

2.88

3.03

2.45

2.58

2.73

2.88

3.03

2.45

2.58

2.73

2.88

3.03

1.27

1.03

1.37

1.13

0.87

1.57

1.34

1.09

0.81

1.76

1.55

1.31

1.04

0.73

1.96

1.75

1.53

1.27

0.97

2.16

1.96

1.74

1.50

1.21

2.35

2.16

1.96

1.73

1.45

0.52

0.40

0.56

0.44

0.32

0.64

0.52

0.40

0.28

0.72

0.60

0.48

0.36

0.24

0.80

0.68

0.56

0.44

0.32

0.88

0.76

0.64

0.52

0.40

0.96

0.84

0.72

0.60

0.48

0.52

0.40

0.56

0.44

0.32

0.64

0.52

0.40

0.28

0.72

0.60

0.48

0.36

0.24

0.80

0.68

0.56

0.44

0.32

0.88

0.76

0.64

0.52

0.40

0.96

0.84

0.72

0.60

0.48

0.52

0.40

0.56

0.44

0.32

0.64

0.52

0.40

0.28

0.72

0.60

0.48

0.36

0.24

0.80

0.68

0.56

0.44

0.32

0.88

0.76

0.64

0.52

0.40

0.96

0.84

0.72

0.60

0.48

794
826
794
826
859
794
826
859
891
794
826
859
891
923
794
826
859
891
923
794
826
859
891
923
794
826
859
891
923

2.25

2.40

2.25

2.40

2.55

2.25

2.40

2.55

2.70

2.25

2.40

2.55

2.70

2.85

2.25

2.40

2.55

2.70

2.85

2.25

2.40

2.55

2.70

2.85

2.25

2.40

2.55

2.70

2.85

1.17

0.96

1.26

1.06

0.82

1.44

1.25

1.02

0.76

1.62

1.44

1.22

0.97

0.68

1.80

1.63

1.43

1.19

0.91

1.98

1.82

1.63

1.40

1.14

2.16

2.02

1.84

1.62

1.37

842
867
842
867
907
842
867
907
932
842
867
907
932
964
842
867
907
932
964
842
867
907
932
964
842
867
907
932
964

2.08

2.23

2.08

2.23

2.38

2.08

2.23

2.38

2.55

2.08

2.23

2.38

2.55

2.68

2.08

2.23

2.38

2.55

2.68

2.08

2.23

2.38

2.55

2.68

2.08

2.23

2.38

2.55

2.68

1.08

0.89

1.16

0.98

0.76

1.33

1.16

0.95

0.71

1.49

1.34

1.14

0.92

0.64

1.66

1.51

1.33

1.12

0.86

1.83

1.69

1.52

1.33

1.07

1.99

1.87

1.71

1.53

1.28

875
915
875
915
940
875
915
940
972
875
915
940
972

1004

875
915
940
972

1004

875
915
940
972

1004

875
915
940
972

1004

COOL operation (230V)

MSC-09RV - (Single Room A) : MUX-20TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

21

PERFORMANCE DATA

INDOOR INDOOR

21 25 27 30

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 2.7 kW INPUT(Total=Indoor+Outdoor) : 1000W SHF : 0.69

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

3.17

3.31

3.17

3.31

3.44

3.17

3.31

3.44

3.62

3.17

3.31

3.44

3.62

3.73

3.17

3.31

3.44

3.62

3.73

3.17

3.31

3.44

3.62

3.73

3.17

3.31

3.44

3.62

3.73

1.62

1.29

1.74

1.42

1.07

2.00

1.69

1.34

0.98

2.25

1.95

1.62

1.27

0.86

2.51

2.22

1.89

1.56

1.16

2.76

2.48

2.17

1.85

1.45

3.01

2.75

2.44

2.13

1.75

0.51

0.39

0.55

0.43

0.31

0.63

0.51

0.39

0.27

0.71

0.59

0.47

0.35

0.23

0.79

0.67

0.55

0.43

0.31

0.87

0.75

0.63

0.51

0.39

0.95

0.83

0.71

0.59

0.47

0.51

0.39

0.55

0.43

0.31

0.63

0.51

0.39

0.27

0.71

0.59

0.47

0.35

0.23

0.79

0.67

0.55

0.43

0.31

0.87

0.75

0.63

0.51

0.39

0.95

0.83

0.71

0.59

0.47

0.51

0.39

0.55

0.43

0.31

0.63

0.51

0.39

0.27

0.71

0.59

0.47

0.35

0.23

0.79

0.67

0.55

0.43

0.31

0.87

0.75

0.63

0.51

0.39

0.95

0.83

0.71

0.59

0.47

0.51

0.39

0.55

0.43

0.31

0.63

0.51

0.39

0.27

0.71

0.59

0.47

0.35

0.23

0.79

0.67

0.55

0.43

0.31

0.87

0.75

0.63

0.51

0.39

0.95

0.83

0.71

0.59

0.47

800
840
800
840
870
800
840
870
910
800
840
870
910
960
800
840
870
910
960
800
840
870
910
960
800
840
870
910
960

3.04

3.17

3.04

3.17

3.32

3.04

3.17

3.32

3.48

3.04

3.17

3.32

3.48

3.62

3.04

3.17

3.32

3.48

3.62

3.04

3.17

3.32

3.48

3.62

3.04

3.17

3.32

3.48

3.62

1.55

1.24

1.67

1.36

1.03

1.91

1.62

1.30

0.94

2.16

1.87

1.56

1.22

0.83

2.40

2.13

1.83

1.50

1.12

2.64

2.38

2.09

1.78

1.41

2.89

2.63

2.36

2.05

1.70

840
890
840
890
925
840
890
925
960
840
890
925
960

1010

840
890
925
960

1010

840
890
925
960

1010

840
890
925
960

1010

2.92

3.08

2.92

3.08

3.24

2.92

3.08

3.24

3.40

2.92

3.08

3.24

3.40

3.56

2.92

3.08

3.24

3.40

3.56

2.92

3.08

3.24

3.40

3.56

2.92

3.08

3.24

3.40

3.56

1.49

1.20

1.60

1.32

1.00

1.84

1.57

1.26

0.92

2.07

1.82

1.52

1.19

0.82

2.30

2.06

1.78

1.46

1.10

2.54

2.31

2.04

1.74

1.39

2.77

2.55

2.30

2.01

1.68

880
910
880
910
950
880
910
950
990
880
910
950
990

1040

880
910
950
990

1040

880
910
950
990

1040

880
910
950
990

1040

2.81

2.97

2.81

2.97

3.11

2.81

2.97

3.11

3.29

2.81

2.97

3.11

3.29

3.46

2.81

2.97

3.11

3.29

3.46

2.81

2.97

3.11

3.29

3.46

2.81

2.97

3.11

3.29

3.46

1.43

1.16

1.54

1.28

0.96

1.77

1.51

1.21

0.89

1.99

1.75

1.46

1.15

0.79

2.22

1.99

1.71

1.42

1.07

2.44

2.23

1.96

1.68

1.35

2.67

2.47

2.20

1.94

1.62

920
950
920
950
990
920
950
990

1040

920
950

990
1040
1070

920

950

990
1040
1070

920

950

990
1040
1070

920

950

990
1040
1070

COOL operation (230V)

MSC-09RV - (Single Room B or C) : MUX-20TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

22

PERFORMANCE DATA

INDOOR INDOOR

35 40 46

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 2.7 kW INPUT(Total=Indoor+Outdoor) : 1000W SHF : 0.69

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

2.65

2.78

2.65

2.78

2.94

2.65

2.78

2.94

3.11

2.65

2.78

2.94

3.11

3.27

2.65

2.78

2.94

3.11

3.27

2.65

2.78

2.94

3.11

3.27

2.65

2.78

2.94

3.11

3.27

1.35

1.08

1.46

1.20

0.91

1.67

1.42

1.15

0.84

1.88

1.64

1.38

1.09

0.75

2.09

1.86

1.62

1.34

1.01

2.30

2.09

1.85

1.58

1.27

2.51

2.31

2.09

1.83

1.54

0.51

0.39

0.55

0.43

0.31

0.63

0.51

0.39

0.27

0.71

0.59

0.47

0.35

0.23

0.79

0.67

0.55

0.43

0.31

0.87

0.75

0.63

0.51

0.39

0.95

0.83

0.71

0.59

0.47

0.51

0.39

0.55

0.43

0.31

0.63

0.51

0.39

0.27

0.71

0.59

0.47

0.35

0.23

0.79

0.67

0.55

0.43

0.31

0.87

0.75

0.63

0.51

0.39

0.95

0.83

0.71

0.59

0.47

0.51

0.39

0.55

0.43

0.31

0.63

0.51

0.39

0.27

0.71

0.59

0.47

0.35

0.23

0.79

0.67

0.55

0.43

0.31

0.87

0.75

0.63

0.51

0.39

0.95

0.83

0.71

0.59

0.47

980

1020

980
1020
1060

980
1020
1060

1100

980
1020
1060

1100
1140

980
1020
1060

1100
1140

980
1020
1060

1100
1140

980
1020
1060

1100
1140

2.43

2.59

2.43

2.59

2.75

2.43

2.59

2.75

2.92

2.43

2.59

2.75

2.92

3.08

2.43

2.59

2.75

2.92

3.08

2.43

2.59

2.75

2.92

3.08

2.43

2.59

2.75

2.92

3.08

1.24

1.01

1.34

1.11

0.85

1.53

1.32

1.07

0.79

1.73

1.53

1.29

1.02

0.71

1.92

1.74

1.51

1.25

0.95

2.11

1.94

1.74

1.49

1.20

2.31

2.15

1.96

1.72

1.45

1040
1070
1040
1070
1120
1040
1070
1120
1150
1040
1070
1120
1150
1190
1040
1070
1120
1150
1190
1040
1070
1120
1150
1190
1040
1070
1120
1150
1190

2.24

2.40

2.24

2.40

2.57

2.24

2.40

2.57

2.75

2.24

2.40

2.57

2.75

2.89

2.24

2.40

2.57

2.75

2.89

2.24

2.40

2.57

2.75

2.89

2.24

2.40

2.57

2.75

2.89

1.14

0.94

1.23

1.03

0.80

1.41

1.23

1.00

0.74

1.59

1.42

1.21

0.96

0.66

1.77

1.61

1.41

1.18

0.90

1.95

1.80

1.62

1.40

1.13

2.13

1.99

1.82

1.62

1.36

1080
1130
1080
1130
1160
1080
1130
1160
1200
1080
1130
1160
1200
1240
1080
1130
1160
1200
1240
1080
1130
1160
1200
1240
1080
1130
1160
1200
1240

COOL operation (230V)

MSC-09RV - (Single Room B or C) : MUX-20TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

23

PERFORMANCE DATA

INDOOR INDOOR

21 25 27 30

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1390W SHF : 0.67

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

4.11

4.29

4.11

4.29

4.46

4.11

4.29

4.46

4.69

4.11

4.29

4.46

4.69

4.83

4.11

4.29

4.46

4.69

4.83

4.11

4.29

4.46

4.69

4.83

4.11

4.29

4.46

4.69

4.83

2.02

1.59

2.18

1.76

1.29

2.51

2.10

1.65

1.17

2.84

2.44

2.01

1.55

1.01

3.17

2.79

2.37

1.92

1.40

3.50

3.13

2.72

2.30

1.79

3.82

3.47

3.08

2.67

2.17

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

1112

1168

1112
1168
1209

1112
1168
1209
1265

1112
1168
1209
1265
1334

1112
1168
1209
1265
1334

1112
1168
1209
1265
1334

1112
1168
1209
1265
1334

3.94

4.11

3.94

4.11

4.31

3.94

4.11

4.31

4.52

3.94

4.11

4.31

4.52

4.69

3.94

4.11

4.31

4.52

4.69

3.94

4.11

4.31

4.52

4.69

3.94

4.11

4.31

4.52

4.69

1.93

1.52

2.09

1.69

1.25

2.40

2.02

1.59

1.13

2.72

2.34

1.94

1.49

0.98

3.03

2.67

2.28

1.85

1.36

3.35

3.00

2.63

2.21

1.74

3.66

3.33

2.97

2.57

2.11

1168
1237
1168
1237
1286
1168
1237
1286
1334
1168
1237
1286
1334
1404
1168
1237
1286
1334
1404
1168
1237
1286
1334
1404
1168
1237
1286
1334
1404

3.78

3.99

3.78

3.99

4.20

3.78

3.99

4.20

4.41

3.78

3.99

4.20

4.41

4.62

3.78

3.99

4.20

4.41

4.62

3.78

3.99

4.20

4.41

4.62

3.78

3.99

4.20

4.41

4.62

1.85

1.48

2.00

1.64

1.22

2.31

1.96

1.55

1.10

2.61

2.27

1.89

1.46

0.97

2.91

2.59

2.23

1.81

1.34

3.21

2.91

2.56

2.16

1.71

3.52

3.23

2.90

2.51

2.08

1223
1265
1223
1265
1321
1223
1265
1321
1376
1223
1265
1321
1376
1446
1223
1265
1321
1376
1446
1223
1265
1321
1376
1446
1223
1265
1321
1376
1446

3.64

3.85

3.64

3.85

4.03

3.64

3.85

4.03

4.27

3.64

3.85

4.03

4.27

4.48

3.64

3.85

4.03

4.27

4.48

3.64

3.85

4.03

4.27

4.48

3.64

3.85

4.03

4.27

4.48

1.78

1.42

1.93

1.58

1.17

2.22

1.89

1.49

1.07

2.51

2.19

1.81

1.41

0.94

2.80

2.50

2.13

1.75

1.30

3.09

2.81

2.46

2.09

1.66

3.39

3.12

2.78

2.43

2.02

1279
1321
1279
1321
1376
1279
1321
1376
1446
1279
1321
1376
1446
1487
1279
1321
1376
1446
1487
1279
1321
1376
1446
1487
1279
1321
1376
1446
1487

COOL operation (230V)

MSC-12RV - (Single) : MUX-25TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

24

PERFORMANCE DATA

INDOOR INDOOR

35 40 46

DB(;) WB(;)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT

CAPACITY : 3.5 kW INPUT(Total=Indoor+Outdoor) : 1390W SHF : 0.67

OUTDOOR DB(;)

21
21
22
22
22
24
24
24
24
26
26
26
26
26
28
28
28
28
28
30
30
30
30
30
32
32
32
32
32

18
20
18
20
22
18
20
22
24
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26
18
20
22
24
26

3.43

3.61

3.43

3.61

3.82

3.43

3.61

3.82

4.03

3.43

3.61

3.82

4.03

4.24

3.43

3.61

3.82

4.03

4.24

3.43

3.61

3.82

4.03

4.24

3.43

3.61

3.82

4.03

4.24

1.68

1.33

1.82

1.48

1.11

2.09

1.77

1.41

1.01

2.37

2.05

1.72

1.33

0.89

2.64

2.34

2.02

1.65

1.23

2.92

2.63

2.33

1.97

1.57

3.19

2.92

2.63

2.29

1.91

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

0.49

0.37

0.53

0.41

0.29

0.61

0.49

0.37

0.25

0.69

0.57

0.45

0.33

0.21

0.77

0.65

0.53

0.41

0.29

0.85

0.73

0.61

0.49

0.37

0.93

0.81

0.69

0.57

0.45

1362
1418
1362
1418
1473
1362
1418
1473
1529
1362
1418
1473
1529
1585
1362
1418
1473
1529
1585
1362
1418
1473
1529
1585
1362
1418
1473
1529
1585

3.15

3.36

3.15

3.36

3.57

3.15

3.36

3.57

3.78

3.15

3.36

3.57

3.78

3.99

3.15

3.36

3.57

3.78

3.99

3.15

3.36

3.57

3.78

3.99

3.15

3.36

3.57

3.78

3.99

1.54

1.24

1.67

1.38

1.04

1.92

1.65

1.32

0.95

2.17

1.92

1.61

1.25

0.84

2.43

2.18

1.89

1.55

1.16

2.68

2.45

2.18

1.85

1.48

2.93

2.72

2.46

2.15

1.80

1446
1487
1446
1487
1557
1446
1487
1557
1599
1446
1487
1557
1599
1654
1446
1487
1557
1599
1654
1446
1487
1557
1599
1654
1446
1487
1557
1599
1654

2.91

3.12

2.91

3.12

3.33

2.91

3.12

3.33

3.57

2.91

3.12

3.33

3.57

3.75

2.91

3.12

3.33

3.57

3.75

2.91

3.12

3.33

3.57

3.75

2.91

3.12

3.33

3.57

3.75

1.42

1.15

1.54

1.28

0.96

1.77

1.53

1.23

0.89

2.00

1.78

1.50

1.18

0.79

2.24

2.02

1.76

1.46

1.09

2.47

2.27

2.03

1.75

1.39

2.70

2.52

2.29

2.03

1.69

1501
1571
1501
1571
1612
1501
1571
1612
1668
1501
1571
1612
1668
1724
1501
1571
1612
1668
1724
1501
1571
1612
1668
1724
1501
1571
1612
1668
1724

COOL operation (230V)

MSC-12RV - (Single) : MUX-25TV -

E1E3

NOTE Q :Total capacity (kW) SHF :Sensible heat factor

SHC :Sensible heat capacity (kW) INPUT :Total power input (W)

25

TROUBLESHOOTING10

MUX-19TV - MUX-20TV - MUX-25TV -

E1E1E1

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 unplug the power cord 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.

Lead wiring

Housing point

10-2. Instruction of troubleshooting

Start

Indoor unit oper­ates. Outdoor unit
doesn’t operate.

Outdoor unit
operates in
only Test
Run opera­tion.

Check room
temperature
thermistor.

Outdoor unit
doesn’t oper­ate even in
Test Run
operation.

Refer to
“Check of
outdoor unit”
on page 29
and 30.

D

Indoor unit doesn’t
receive the signal
from remote
controller.

Refer to
“Check of remote
controller and
receiver P.C. board”
on page 28.

1-time flash

Outdoor unit is set in
“MXZ” or “MUH” type.
Refer to the service man­ual No.OB227 REVISED
EDITION-B page 121.

B

OPERATION INDICATOR
lamp on the indoor unit is
flashing on and off.

2-time flash

2.5-second OFF

3-time flash

2.5-second OFF

Cause:Indoor unit

2-time-Room tempera-

ture/Indoor coil
thermistor trouble

3-time-Indoor fan motor

trouble

Indoor unit doesn’t

receive the signal from
remote controller.

Also, OPERATION INDI-

CATOR lamp doesn’t
light, when the EMER­GENCY OPERATION
switch is pressed.

Refer to “Check of

indoor electronic control
P.C. board” on page 28.

C

Check indoor coil
thermistor. Refer
to“Test point dia­gram and voltage”
on page 31.

26

Refer to
“Check of indoor
fan motor” on
page 27.

A

Check room temperature
thermistor. Refer to“Test
point diagram and volt­age” on page 31.

10-3. Trouble criterion of main parts

Part name

Compressor

Outdoor fan
motor

Check method and criterion Figure

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

Normal

MUX-19TV-

RH220VHAT RH135VHAT

C-R

1.87~2.30" 3.68~4.51"

C-S

3.44~4.22" 5.08~6.22"

E1

MUX-20TV-

RH140VHAT RH174VHAT

3.55~4.35" 2.91~3.57"

5.03~6.17" 5.11~6.26"

E1

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

Normal

E1

MUX-25TV-

WHT-BLK

BLK-RED
BLK-YLW

MUX-19TV-

E1

MUX-20TV-

79~98Ω

129~158Ω

47~58Ω

MUX-25TV-

RH231VHAT

1.87~2.30"

3.44~4.22"

59~72Ω
66~80Ω
65~79Ω

E1

E1

Abnormal

Opened or

short-circuited

Abnormal

Opened or

short-circuited

P

P

WHT

RED

BLKYLW

Solenoid coil

21R, 21RA,

( )

21RB

A

Check of indoor fan motor

Measure the resistance with a tester. (Part temperature -10°C ~ 40°C)

Indoor fan does not operate.

No

Reconnect 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.3 and then No.2 and No.3.

Normal

1,410~1,730Ω

Abnormal

Opened or short-circuited

Turn OFF the power supply.
Check connector CN211 visually.

Yes

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

Yes ( 0 or ∞ )

Is soldered point normal?

Yes

Replace the indoor electronic con-

No

(others)

trol P.C. board.

No

Resolder it.

Repair the indoor fan motor.

27

Check of remote controller and receiver P.C. board

B

Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller.

wCheck the remote controller is exclusive for this air conditioner.
wReplace the receiver P.C. board together with the indoor control P.C. board.

Switch on the remote controller.

Is LCD display on the remote con­troller visible?

Yes

Remove batteries and then set them back.
Check if the unit operates with the remote
controller.

Does the unit operate with the
remote controller?

Yes

OK

Check of indoor electronic control P.C. board

C

No
(not clear)

No

Turn on a radio to AM and press switch on
the remote controller.

Is noise heard from radio?

Are there any fluorescent lights of
inverter or rapid-start type within
the range of 1m?

Replace the indoor electronic control P.C.
board with receiver.

Replace the batteries.

Yes

No

No

Yes

Replace the remote controller.

• Re-install the unit away from lights.

• Attach a filter on receiving part.

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

Check both “parts side”
and “pattern side” of indoor
electronic control P.C.
board visually.

Turn OFF the power supply.
Remove indoor fan motor connector CN211 and vane motor connector CN151
from the ELECTRONIC CONTROL P.C. board and turn on the power supply.

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

No

Replace the vane motor. .

Yes

Is winding resistance
of vane motor 0 "?

Be sure to check both resistance.

Is winding resistance
of fan motor 0 "?

Yes

Replace the fan motor .

No

No

Yes

Replace the fuse.

Is fuse(F11) blown?

Be sure to check both fuse
and varistor in any case.

Is varistor(NR11) burnt?

Replace the varistor.

28

Yes

No

Trouble of the
indoor electronic
control P.C. board.

No

Yes

D

Check of outdoor unit

Compressor and outdoor fan do not operate.

Start

Check the voltage of terminal block outdoor unit
AC220~240V between L - N.

Yes

Check the voltage of terminal block of indoor
unit. Is there 12V DC to terminal block between
1 and 2.

Yes

Check the voltage of terminal block of outdoor
unit. Is there 12V DC to terminal block between
1 and 2.

Yes

Turn OFF power supply to the indoor unit and the outdoor
unit.

Is fuse F61 blown?

Yes

Replace the fuse.

No

No

Check the outdoor power supply and connection.

Reconfirmed

No

Check the indoor unit control P.C. board.
Refer to the service manual No.OB227 REVISED
EDITION-B page 121.

No

Check continuity of indoor and outdoor unit conec­tion.

Remove connector from outdoor control P.C. board CN71~CN74, CN90,
and continuity confirmation next (1) ~ (8).

(1) Between CN71 1 pin and 1 of Aroom of the outdoor terminal block.
(2) Between CN71 3 pin and 2 of B room of the outdoor terminal block.
(3) Between CN73 1 pin and 1 of B room of the outdoor terminal block.
(4) Between CN73 3 pin and 2 of B room of the outdoor terminal block.
(5) Between CN74 1 pin and 1 of C room of the outdoor terminal block.

(MUX20TV only)

(6) Between CN74 3 pin and 2 of C room of the outdoor terminal block.

(MUX20TV only)
(7) Between CN90 1 pin and L of the outdoor terminal block.
(8) Between CN90 3 pin and N of the outdoor terminal block.

Replace outdoor control P.C. board.

Yes

All continuity in the upper (1) ~ (8).

No

Exchange the wiring whith continuity is no in.

29

Compressor does not operate.

No.

Start

Turn OFF power supply (indoor / out­door unit).

Yes

Compressor
does not operate.

No

Yes

Is the connection of
wiring from terminal block
to compressor correct?

Check the compressor.
See page 27.
Is it normal?

Make the connection of
wiring from terminal
block to compressor
correct.

Replace the compressor.

Replace the outdoor
fan motor.

No

Yes

Check the outdoor control
P.C. board.
See page 31.

Does outdoor unit operate?

Yes

Ok

No.

Start

Turn OFF power supply (indoor / out­door unit).

Yes

Outdoor fan motor
does not operate.

Yes

Is the connection of wiring
from terminal block to
outdoor fan motor correct?

Make the connection
of wiring from terminal
block to outdoor fan
motor correct.

Yes

No

Check the outdoor fan
motor. See page 27.
Is it normal?

Replace the outdoor
fan motor.

Check the outdoor control
P.C. board.
See page 31.

Does outdoor unit operate?

Yes

Ok

No

Outdoor fan does not operate.

30

TEST POINT DIAGRAM AND VOLTAGE
MUX-19TV ­MUX-20TV ­MUX-25TV -

E1

E1

E1

Outdoor control P.C. board

Fan capacitor

From indoor
unit A
12V DC
1+, 3–

From indoor
unit C
12V DC
1+, 3–

From indoor
unit B
12V DC
1+, 3–

Fan motor

Fan capacitor

Solenoid coil 21R3

Solenoid coil 21R4

Solenoid coil 21RB

To compressor
MC1

To terminal
block

Fuse 250V AC

3.15A
Power supply
input
220-240V AC

31

11

(1) (2)

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.

<"Terminal with lock mechanism" Detaching points>

DISASSEMBLY INSTRUCTIONS

11-1. MUX-19TV - MUX-20TV - MUX-25TV -

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1.Removing the cabinet.

(1) Remove the screws fixing the service panel.
(2) Remove the screw fixing the top panel.
(3) Remove the service panel.
(4) Remove the top panel.
(5) Remove the screws fixing the front panel.
(6) Remove the front panel.
(7) Remove the screws fixing the back panel.
(8) Remove the back panel.

Back panel

Photo 3

Back panel

set screws

E1E1E1

Photo 1

Front panel
set screws

Photo 2

Top panel

Front
panel

Front panel
set screws

Top panel
set screws

Back panel set screws

32

Service panel

Service
panel set
screws

Back panel
set screws

OPERATING PROCEDURE PHOTOS

2. Removing the relay panel.

(1) Remove the cabinet. (Refer to 1)
(2) Disconnect the following connectors.

.

Outdoor fan motor

.

Solenoid coil (21RB, 21R3, 21R4) <Only MUX-20>

3. Removing the propeller.

(1) Remove the cabinet.
(2) Remove the propeller nut.
(3) Remove the propeller.

Note : Loosen the propeller in the rotating direction for removal.

When setting the propeller, align the motor-shaft cut
section.

Photo 4

Outdoor fan motor
set screws

Outdoor fan
motor

Propeller

Solemoid coil connector
(21RB, 21R3, 21R4)

Outdoor fan
motor connector

Relay panel
set screws

Clamp

Propeller nut

Relay panel
set screws

4. Removing the outdoor fan motor.

(1) Remove the cabinet. (Refer to 1)
(2) Remove the propeller. (Refer to 3)
(3) Disconnect the connector remove the clamp of outdoor fan

motor lead wire.

(4) Remove the screws fixing the outdoor fan motor.

33

OPERATING PROCEDURE PHOTOS

5. Removing the compressor. (A,B)

(1) Remove the cabinet. (Refer to 1)
(2) Remove the relay panel. (Refer to 2)
(3) Remove the terminal cover.
(4) Pull out lead from the compressor.
(5) Remove the suction pipe welded section and discharge

pipe welded section using a burner. Pull out when the

welding melts.
(6) Remove the sound proof felt.
(7) Remove the compressor set nuts.
(8) Remove the compressor.

6. Removing the compressor. (C)

(1) Remove the cabinet. (Refer to 1)
(2) Remove the relay panel. (Refer to 2)
(3) Remove the screws fixing rear panel. (Refer to photo 4)
(4) Remove the rear panel.
(5) Remove the terminal cover.
(6) Pull out lead from the compressor.
(7) Remove the suction pipe welded section and discharge

pipe welded section using a burner. Pull out when the

welding melts.
(8) Remove the sound proof felt.
(9) Remove the compressor set nuts.

(10) Remove the compressor.

Photo 7

Suction pipe

Discharge pipe

Terminal cover

Terminal cover

Sound proof felt

34

PARTS LIST12

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

No.

Parts No. Parts Name Remarks

MUX-20TV-

E1

Symbol

in Wiring

Diagram

Q'ty / unit

1

2

3

4
5

6

7
8

9
10
11

OUTDOOR FAN MOTOR
OUTDOOR FAN MOTOR
PROPELLER FAN
RELAY CONTROL P.C. BOARD
RELAY CONTROL P.C. BOARD
RELAY CONTROL P.C. BOARD
TERMINAL BED
TERMINAL BED
FAN MOTOR CAPACITOR
FAN MOTOR CAPACITOR
FUSE
COMP RUN CAPACITOR
COMP RUN CAPACITOR
TERMINAL BED
VARISTOR

1

1

1

1
1
1

1
2

1
1

RA6V60-DA
RA6V60-EA

3.0=/440V AC

4.0=/440V AC

3.15A
25=/440V AC
30=/440V AC

MF61
MF61

C61
C61

F
C1,2
C1,2

MUX-19TV-

E1

1

1
1

1
1
1

1
1
1
1
1

MUX-25TV-

E1

1
1

1
1
1

1
1

2
1
1

E02 636 301
E02 638 301
E02 214 501
E02 636 444
E02 637 444
E02 638 444
E02 637 374
E02 636 374
E02 138 351
E02 064 351
E02 127 382
E02 085 353
E02 079 353
E07 056 374
E02 085 385

12-1. OUTDOOR UNIT
FUNCTIONAL PARTS AND ELECTRICAL PARTS
MUX-19TV - MUX-20TV - MUX-25TV -

1

E1E1E1

9

8

2

4

3

12-1. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS

7
6

5

35

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

No. Parts No. Parts Name Remarks

MUX-20TV-

E1

Symbol

in Wiring

Diagram

Q'ty / unit

1
2
3
4
5
6

7

8

9

10
11

12
13
14
15

TOP PANEL
MOTOR SUPPORT
OUTDOOR HEAT EXCHANGER
CABINET
FAN GUARD
HANDLE
COMPRESSOR
COMPRESSOR
COMPRESSOR
COMPRESSOR
COMPRESSOR
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
COMP RUBBER SET
BASE
STOP VALVE (GAS)
STOP VALVE (GAS)
STOP VALVE (LIQ)
CAPILLARY TUBE
SERVICE PANEL
BACK PANEL (OUT)

1
1
1
1
1
2

1
1

1
2
1

6
1
3

3
1
1
1

RH220VHAT
RH135VHAT
RH140VHAT
RH174VHAT
RH231VHAT



3RUBBERS/SET

[3.0O[1.6O1000

MC1
MC2
MC1
MC2

MC1,2

MUX-19TV-

E1

1
1
1
1
1
2
1
1

1
1

6
1
1
1
2

1
1

MUX-25TV-

E1

1
1
1
1
1
2

2

1
1
6
1

2
2

1
1

E02 636 297
E02 636 515
E02 636 630
E02 636 232
E02 527 521
E07 001 009
E02 594 900
E02 636 900
E02 637 900
E02 635 900
E02 141 900
E02 652 936
E02 636 937
E02 637 936
E02 289 936
E02 652 937
E07 042 937
E02 412 936
E02 075 506
E02 636 290
E02 636 661
E02 638 661
E02 636 662
E02 075 936
E02 636 245
E02 636 233

(A room)
[3.0O[1.6O660
(B room)
[3.0O[1.4O810

(B,C room)
[3.0O[1.6O900
(B,C room)
[3.0O[1.8O450
(A room)
[3.0O[1.6O550

(B room)
[3.0O[1.6O600

(A room)
[3.0O[1.4O450

12-2. OUTDOOR UNIT
STRUCTURAL PARTS
MUX-19TV - MUX-20TV - MUX-25TV -

1

2

E1E1E1

15

3

4

13
12

5

11

7 8 9 10

6

36

6

14

OPTIONAL PARTS13

Model

Part No.

MAC-1300FT

MSC-07RV­MSC-09RV­MSC-12RV-

E3
E3

E3

MAC-1800DF

Model

Part No.
MSC-07RV­MSC-09RV­MSC-12RV-

E3
E3

E3

13-1. 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 3 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.

13-2. DEODORIZING FILTER

● DEODORIZING FILTER removes ammonia and hydrogen sulphide emitted from tobacco, and odors 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.

37

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

CC

Copyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD.
Distributed in Apr. 2001. No.OB284 248
Made in Japan

New publication, effective Apr. 2001
Specifications subject to change without notice.