Mitsubishi OB322 Service Manual

SERVICE MANUAL

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

Wireless type
Models

No. OB322

MUH-A18WV ­MUH-A24WV ­MUH-A30WV -

Indication of model name

MUH-A18WV -

E1

E1

E1

E1

CONTENTS

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

2. PART NAMES AND FUNCTIONS······················6

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······························15

9. MICROPROCESSOR CONTROL ····················25

10. SERVICE FUNCTIONS·····································29

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

12. DISASSEMBLY INSTRUCTIONS·····················39

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

NOTE:

•This service manual describes technical data of outdoor unit.
As for indoor unit MSH-A18WV- , MSH-A24WV- and MSH-A30V- ,
refer to the service manual OB321.

E1E1E1

1

Refrigerating

oil

Refrigerant

New refrigerant

R410A

HFC-32: HFC-125 (50%:50%)

Pseudo-azeotropic refrigerant

Not included

A1/A1

72.6

-51.4

1.557
64

Non combustible

0

1730

From liquid phase in cylinder

Possible

Incompatible oil

Non
Non

Previous refrigerant

R22

R22 (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)
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 CFC-11
w2 :Global Warmth Parameter : based on CO

2

TECHNICAL CHANGES

MUH-18RV - ➔MUH-A18WV -

1. Refrigerant has changed. (R22➔R410A)

2. Refrigerant system diagram has changed.

• Compressor, stop valve and 4-way valve have changed.

• Diameter of stop valve has changed. (Gas: [15.88➔[12.7)

• Accumulator has removed and high pressure receiver has been added.

3. Oil separator has been added.

MUH-24RV - ➔MUH-A24WV -

1. Dimension of outdoor unit has changed.

2. Refrigerant has changed. (R22➔R410A)

3. Refrigerant system diagram has changed.

• Diameter of stop valve has changed. (Liquid: [9.52➔[6.35)

• Accumulator has removed and high pressure receiver has been added.

MUH-30RV - ➔MUH-A30WV -

1. Dimension of outdoor unit has changed.

2. Refrigerant has changed. (R22➔R410A)

3. Refrigerant system diagram has changed.

• Accumulator has removed and high pressure receiver has been added.

E1E2

E1E1

E1E1

INFORMATION FOR THE AIR CONDITIONER WITH R410A REFRIGERANT

• This room air conditioner adopts an HFC refrigerant (R410A) which never destroys the ozone layer.

• Pay particular attention to the following points, though the basic installation procedure is same as that for R22 conditioners.
1 As R410A has working pressure approximate 1.6 times as high as that of R22, some special tools and piping parts/

materials are required. Refer to the table below.

2 Take sufficient care not to allow water and other contaminations to enter the R410Arefrigerant during storage and

installation, since it is more susceptible to contaminations than R22.

3 For refrigerant piping, use clean, pressure-proof parts/materials specifically designed for R410A. (Refer to 2. Refrigerant

piping.)

4 Composition change may occur in R410A since it is a mixed refrigerant. When charging, charge liquid refrigerant to prevent

composition change.

3

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

New Specification Current Specification

The incompatible refrigerating oil easily separates from
refrigerant and is in the upper layer inside the suction muffler.
Raising position of the oil back hole enables to back the
refrigerating oil of the upper layer to flow back to the
compressor.

Since refrigerant and refrigerating oil are compatible each,
refrigerating oil backs to the compressor through the lower
position oil back hole.

Compressor

Suction muffler

Oil back hole

Refrigerating oil

Refrigerant

Compressor

Suction muffler

Oil back hole

Refrigerating oil /Refrigerant

Compressor

-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])

R410A
R22

Conversion chart of refrigerant temperature and pressure

Saturated liquid pressure

(:)

R410A tools Can R22 tools be used?

Gas leak detector

R410A has high pressures beyond the measurement range of existing
gauges. Port diameters have been changed to prevent any other refrigerant
from being charged into the unit.

Hose material and cap size have been changed to improve the pressure
resistance.

Dedicated for HFC refrigerant.

6.35 mm and 9.52 mm

Description

Clamp bar hole has been enlarged to reinforce the spring strength in the tool.
Provided for flaring work (to be used with R22 flare tool).

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

It is difficult to measure R410A with a charging cylinder because the
refrigerant bubbles due to high pressure and high-speed vaporization

No

No

No

Yes

Yes

New

New

New

Gauge manifold

Charge hose

Torque wrench

Flare tool
Flare gauge

Vacuum pump
adapter

Electronic scale for
refrigerant charging

No : Not Substitutable for R410A Yes : Substitutable for R410A

No 12.7 mm and 15.88 mm

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

NOTE : 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])

1.Tools dedicated for the air conditioner with R410A refrigerant

The following tools are required for R410A refrigerant. Some R22 tools can be substituted for R410A tools.
The diameter of the service port on the stop valve in outdoor unit has been changed to prevent any other refrigerant being
charged into the unit. Cap size has been changed from 7/16 UNF with 20 threads to 1/2 UNF with 20 threads.

4

2.Refrigerant piping

Wall
thickness

Outside diameter

Pipe

mm

For liquid

For gas

6.35

9.52

12.7

15.88

0.8 mm

0.8 mm

0.8 mm

1.0 mm

Heat resisting foam plastic
Specific gravity 0.045 Thickness 8 mm

Insulation material

1 Specifications

Use the refrigerant pipes that meet the following specifications.

• Use a copper pipe or a copper-alloy seamless pipe with a thickness of 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88).
Never use any pipe with a thickness less than 0.8 mm (6.35, 9.52, 12.7), 1.0 mm (15.88), as the pressure resistance is
insufficient.

2 Flaring work and flare nut

Flaring work for R410A pipe differs from that for R22 pipe.
For details of flaring work, refer to Installation manual “FLARING WORK”.

Pipe diameter

mm

6.35

9.52

12.7

15.88

Dimension of flare nut

R410A

17
22
26
29

R22

17
22
24
27

3.Refrigerant oil

Apply the special refrigeration oil (accessories: packed with indoor unit) to the flare and the union seat surfaces.

4.Air purge

• Do not discharge the refrigerant into the atmosphere.

Take care not to discharge refrigerant into the atmosphere during installation, reinstallation, or repairs to the refrigerant

circuit.

• Use the vacuum pump for air purging for the purpose of environmental protection.

5.Additional charge

For additional charging, charge the refrigerant from liquid phase of the gas cylinder.
If the refrigerant is charged from the gas phase, composition change may occur in the refrigerant inside the cylinder and the
outdoor unit. In this case, ability of the refrigerating cycle decreases or normal operation can be impossible. However,
charging the liquid refrigerant all at once may cause the compressor to be locked. Thus, charge the refrigerant slowly.

Union

Stop valve

Indoor unit

Refrigerant gas
cylinder
operating valve

Liquid pipe
Gas pipe

Service port

Outdoor unit

Gauge manifold
valve (for R410A)

Charge hose (for R410A)

Refrigerant gas cylinder
for R410A with siphon

Refrigerant (liquid)

Electronic scale for refrigerant charging

5

2

Drainage hose

Piping

Air inlet

Air inlet

Air outlet

Drain outlet

(back and side)

Air outlet

(back and side)

1

2

Drain socket
Drain cap {33
Drain cap {16

1
2

—

1
2
1

MUH-A18WV-

E1

MUH-A24WV­MUH-A30WV-

E1
E1

PART NAMES AND FUNCTIONS

OUTDOOR UNIT

MUH-A18WV -

ACCESSORIES

Outdoor unit

E1

MUH-A24WV ­MUH-A30WV -

E1
E1

6

3

Outdoor model

Function

Power supply

Capacity
Dehumidification
Air flow(High/Low )
Starting current
Compressor motor current
Fan motor current

Model
Output
Winding
resistance(at20:)
Model
Winding
resistance(at20:)
Dimensions WOHOD
Weight
Sound level(High)
Fan speed(High/Low )
Fan speed regulator
Refrigerant filling
capacity(R410A)
Refrigerating oil (Model)
Thermistor RT61(at0:)
Thermistor RT62(at25:)
Thermistor RT63(at0:)

kW

R/h

K /h

A
A
A

W

"

"

mm

kg

dB

rpm

kg
cc

k"
k"
k"

MUH-A30WV -

E1

Single phase

230V, 50Hz

90

0.57

NN37VAAHT

2,500
C-R 0.64
C-S 1.63

RA6V75-AB

WHT-BLK 62.8 BLK-YLW 55.9

YLW-RED 26.0

840o850o330

77
55

805/435

2

2.30

1,300 (NEO 22)

33.18

231.44

33.18

Cooling

8.5

4.6

2,940/1,470

13.85

2.52-2.40

Heating

9.4
—

2,940/1,470

14.62

2.73-2.70

Electrical

data

Compressor

Fan

motor

Special

remarks

Coefficient of performance(C.O.P)

Capacity

www

w

w

Outdoor model

Function

Power supply

Capacity
Dehumidification
Air flow(High)
Starting current
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(R410A)
Refrigerating oil (Model)
Thermistor RT61(at0:)

kW

r/h

K /h

A
A
A

W

"

"

mm

kg

dB

rpm

kg
cc

k"

MUH-A18WV -

E1

Single phase

230V, 50Hz

2,196

37

0.39

RN196VHSHT

1,300
C-R 1.80
C-S 3.00

RA6V50-OG

WHT-BLK 116

BLK-RED 111
850o605o290

47
52

828

1

1.75

520 (NEO22)

33.18

Cooling

5.0

2.5

7.54

2.81

Heating

5.2
—

6.84

3.23

MUH-A24WV -

E1

Single phase

230V, 50Hz

2,760

74

0.58

NN29VBAHT

1,900
C-R 0.80
C-S 1.64

RA6V85-AB

WHT-BLK 63 BLK-YLW 30

YLW-RED 63

840o850o330

74
53

730

1

2.15

1,200 (NEO22)

33.18

Cooling

6.3

3.2

9.81

2.61

Heating

7.2
—

10.12

2.90

Electrical

data

Compressor

Fan

motor

Special

remarks

Coefficient of performance(C.O.P)

Capacity

SPECIFICATION

NOTE: Test conditions are based on JIS C 9612.

w Reference value

Cooling : Indoor DB27°C WB19°C Heating : Indoor DB20°C WB 15.5°C

Outdoor DB35°C WB(24°C) Outdoor DB 7°C WB 6°C

Indoor-Outdoor piping length 5m

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

BAND CENTER FREQUENCIES, Hz

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

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

52

SPL(dB(A)) LINE

High

FAN SPEED

Heating : Dry-bulb temperature 7: Wet-bulb temperature 6:

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

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

BAND CENTER FREQUENCIES, Hz

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

APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

53

SPL(dB(A)) LINE

High

FAN SPEED

Heating : Dry-bulb temperature 7: Wet-bulb temperature 6:

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

NOISE CRITERIA CURVES

MUH-A18WV-

E1

MUH-A24WV-

E1

MUH-A30WV-

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

Heating : Dry-bulb temperature 7: Wet-bulb temperature 6:

90

80

E1

FAN SPEED

SPL(dB(A)) LINE

High

55

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

HEARING FOR
CONTINUOUS
NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

OUTDOORUNIT

1m

MICROPHONE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

8

5

OUTLINES AND DIMENSIONS

MUH-A18WV-

E1

OUTDOOR UNIT

Drainage
hole [16.2

35

90

248

Air in

Drainage
3holes [33

605

292

20

355

350

Air in

Air out

183

500
850

20

50

74

157

290

30

100

310

345

100mm or more

161

500mm or more

Service panel

Liquid refrigerant
pipe joint

Refregerant pipe
(flared) [6.35

35-

30-

Gas refregerant
pipe joint

Refregerant pipe
(flared) [12.7

100mm or more

100mm or more

Unit: mm

350mm or more

MUH-A24WV- MUH-A30WV-

OUTDOOR UNIT

515

299

66

51

34

330

500
840

121

850

430

40

E1E1

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

100mm or more
200mm or more if

100mm or more

there are obstacles
to both sides

360

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

80

350mm or more

Service panel

Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) [6.35 (MUH-A24WV)

[9.52 (MUH-A30WV)

30-

35-

155

90

Gas refrigerant
pipe joint

198

Refrigerant pipe
(flared) [15.88

9

6

WIRING DIAGRAM

MUH-A18WV -

OUTDOOR UNIT

TO
INDOOR UNIT
CONNECTING
12V

POWER SUPPLY

~ /N

50Hz

230V

SYMBOL

C1

C65

DSAR

F61

MC

NOTES:

COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE (2A)
COMPRESOR (INNER PROTECTOR)

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

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

3.Symbols below indicate.
: Terminal block

E1

MODEL WIRING DIAGRAM

TB2

3

RED

N

BLK

TB1

CIRCUIT BREAKER

BRN

L

BRN

N

BLU

PE

GRN/YLW

NAME

: Connector

SYMBOL

MF
NR61
RT61

SR61,SR62

T61

RT61

21S4

1
2
3

CN661

CN730

CN721

SR62

SR61

CN711

1
2
3

DSAR

BLU

OUTDOOR FAN MOTOR (INNER PROTECTOR)
VARISTOR
DEFROST THERMISTOR
SOLID STATE RELAY
TRANSFORMER

F61

TAB20

NAME

T61

52C

4

NR61

3

DEICER P.C.BOARD

C1

WHT

RED

BLK

SYMBOL
TB1,TB2

21S4

52C

C65

C

MC

S

TERMINAL BLOCK
R.V. COIL
COMPRESSOR CONTACTOR

WHT

BLK
RED

R

MF

WHT

BLK

RED

ORN

1

4

23

NAME

VG79B553H01

MUH-A24WV -

OUTDOOR UNIT

CIRCUIT BREAKER

~ /N 230V 50Hz

POWER SUPPLY

12V

TO INDOOR UNIT CONNECTING

TB1

L
N

PE

TB2

3

N

NOTES:

E1

MODEL WIRING DIAGRAM

RT61

BRN

DSAR

CN661

X52X62

GRN/YLW

BLU

BLU

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

2.Since the indoor and outdoor unit connecting wires have polarity, connect them according to the numbers (3,N).

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

BLU

BRN

DEICER
P.C. BOARD

BRN

3

52C

4

SR61

T61

A1 A2

WHT

52C

YLW

YLW

123

NR61

MF

BLK

BLK

C1

WHT

3456

WHT

CN711

X62

X52

ORN

RED

21

COM

COM

CN730

F61

RED

BLK

RED

ORN

C2

CN721

NO

TAB52

NO

MC

S

SYMBOL

C1
C2

DSAR

1
2

21S4

3

F61

MC
MF

7
5
3
1

NR61
RT61
SR61

TB1
TB2

C

R

T61
X52
X62

BLU

RED

BLU

21S4

52C

COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE (3.15A)
COMPRESSOR (INNER PROTECTOR)
OUTDOOR FAN MOTOR (INNER PROTECTOR)
VARISTOR
DEFROST THERMISTOR
SOLID STATE RELAY
TERMINAL BLOCK
TERMINAL BLOCK
TRANSFORMER
CONTACTOR
R. V. COIL RELAY
R. V. COIL
COMPRESSOR CONTACTOR

NAME

SG79J883H01

10

MUH-A30WV -

OUTDOOR UNIT

E1

MODEL WIRING DIAGRAM

BRN

CIRCUIT BREAKER

TB1

L

DSAR

N

PE

~ /N 230V 50Hz

POWER SUPPLY

GRN/YLW

BLU

TB2

3

BRN

N

BLU

12V

TO INDOOR UNIT CONNECTING

BLU

RT61

CN661

DEICER
PC BOARD

BRN

1

52C

CZ

RT62RT63

CN662

X52X62

2

WHTWHT

LEV

6

CN724

SR62
SR61

T61

NR61

WHT

A1 A2

52C

MF

YLW

BLK

WHT

ORN

RED

21

3456

RED

ORN

CN721

NO

TAB52

NO

CN730

F61

C2

1
2
3

7
5
3
1

21S4

YLW

BLK

WHT

3

1

2

CN711

X62

COM

X52

COM

C

C1

RED

BLK

MC

S

R

BLU

RED

BLU

SYMBOL

CZ
C1
C2

DSAR

F61

LEV

MC

NOTE 1. Use copper conductors only (For field wiring).

CZ SURGE ABSRBER
COMPRESSOR CAPACITOR
OUTDOOR FAN CAPACITOR
SURGE ABSORBER
FUSE(3.15A)
EXPANSION VALVE COIL
COMPRESSOR (INNER PROTECTOR)

2. Since the indoor and outdoor unit connecting wires have polarity, connect them according to the numbers (3,N).

3. Symbols below indicate.

/: Terminal block, : Connector

NAME

SYMBOL

MF

NR61

RT61
RT62

RT63
SR61
SR62

OUTDOOR FAN MOTOR (INNER PROTECTOR)
VARISTOR
DEFROST THERMISTOR
DISCHARGE TEMPERATURE THERMIST OR
AMBIENT TEMPERA TURE THERMIST OR
SOLID STATE RELAY
SOLID STATE RELAY

NAME NAME

SYMBOL

TB1
TB2
T61
X52
X62

21S4

52C

TERMINAL BLOCK
TERMINAL BLOCK
TRANSFORMER
CONTACTOR
R.V. COIL RELAY
R.V. COIL
COMPRESSOR CONTACTOR

SG79J882H01

11

7

REFRIGERANT SYSTEM DIAGRAM

MUH-A18WV -

OUTDOOR UNIT

E1

Refrigerant pipe [12.7
(with heat insulator)

Flared connection

Flared connection

Refrigerant pipe[6.35
(with heat insulator)

Stop valve
(with service port)

Capillary tube

[2.5o[0.6o1,000

Receiver

Stop
valve

Strainer

4- way valve

Capillary tube

[3.0o[1.6o450

#100

Compressor

Check valve

Oil separator
#100

Defrost
thermistor
RT61

Capillary tube

[3.0o[1.6o300
Refrigerant flow in cooling
Refrigerant flow in heating

Outdoor
heat
exchanger

Capillary tube

[3.0o[1.6o750

(2 pcs)

R.V. coil
Heating ON
Cooling OFF

Unit:mm

MUH-A24WV -

OUTDOOR UNIT

E1

Refrigerant pipe [15.88
(with heat insulator)

Flared connection

Flared connection

Stop valve

Refrigerant pipe [6.35
(with heat insulator)

Stop valve
(with service port)

Muffler

Receiver

Strainer

#100

4- way valve

Capillary tube

[3.0X[2.0X550

Check valve

Muffler

#100

Compressor

Capillary tube
[3.0X[2.0X650

Refrigerant flow in cooling
Refrigerant flow in heating

Outdoor
heat
exchanger

Defrost
thermistor
RT61

R.V. coil
Heating ON
Cooling OFF

12

MUH-A30WV -

Outdoor
heat
exchanger

Flared connection

Defrost
thermistor
RT61

Discharge
temperature
thermistor
RT62

Flared connection

Stop valve

Stop valve
(with service port)

Capillary tube
[3.6✕[2.4✕50

Refrigerant flow in cooling

Compressor

4-way valve

Refrigerant flow in heating

Refrigerant pipe [15.88
(with heat insulator)

Refrigerant pipe [9.52
(with heat insulator)

LEV

R.V. coil
heating ON
cooling OFF

Muffler

#100

Strainer

#100

Receiver

Muffler

Ambient
temperature
thermistor
RT63

Strainer

#100

Indoor
unit

wMax. Height

difference:
10m(MSH-A18/A24WV)/
15m(MSH-A30WV)

A

Refrigerant Piping
Max. Length

w Height difference should be within 10m(MSH-A18/A24WV)/
15m(MSH-A30WV) regardless of which unit, indoor or outdoor position is high.

Outdoor unit

Model

Piping size O.D : mm Length of connecting pipe : m

Refrigerant piping

Max. length : m

A

25

30

Indoor unit

Gas 0.43

Liquid 0.5

Gas

12.7

15.88

Liquid

6.35

9.52

MUH-A18WV - E1

MUH-A24WV - E1
MUH-A30WV - E1

Outdoor unit

Gas 0

Liquid 0

OUTDOOR UNIT

E1

Unit:mm

MAX. REFRIGERANT PIPING LENGTH

MAX. HEIGHT DIFFERENCE

13

Model

MUH-A18WV -

E1

Refrigerant piping length (one way)

Outdoor unit precharged

1,750

15m

160

20m

260

25m

360

7m

0

10m

60

ADDITIONAL REFRIGERANT CHARGE(R410A : g)

Model

MUH-A24WV -

E1

Refrigerant piping length (one way)

Outdoor unit precharged

2,150

15m

160

20m

260

25m

360

7m

0

10m

60

Outdoor unit

precharged

0 165 440 715 990 1,2652,300

Refrigerant piping length (one way)

15m10m7m

Model

MUH-A30WV -

E1

20m

25m 30m

Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)

Calculation : Xg=20g/m ✕ (Refrigerant piping length (m)–7)

Calculation : Xg=55g/mo(Refrigerant piping length(m)-7)

14

8

11.6

10.5

7.5

8.5

9.5

12.8

15.6

9.8

12.6

11.2

14.1

17.2

17.4

13.9

12.4

10.8

15.6

19.2

MUH-A18WV - E1

MSH-A24WV - E1

MSH-A18WV - E1

MUH-A24WV - E1

MSH-A30WV - E1

MUH-A30WV - E1

Wet-and dry-bulb
thermometers

Wet-and dry-bulb
thermometers

PERFORMANCE CURVES

}

}

E1E1E1

Cooling

Heating

MUH-A18WV - MUH-A24WV - MUH-A30WV -

The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions,
since operating conditions vary according to the areas where these units are installed. The following information has been pro­vided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve.

(1) GUARANTEED VOLTAGE

198 ~ 264V, 50Hz

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

(1) Indoor intake air wet-bulb temperature : °CWB
(2) Indoor outlet air wet-bulb temperature : °CWB
(3) Outdoor intake air dry-bulb temperature : °CDB
(4) Total input: W
(5) Indoor intake air dry-bulb temperature : °CDB
(6) Outdoor intake air wet-bulb temperature : °CWB
(7) Total input : W

Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page and 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 wet-and dry-bulb thermometers to the outdoor air intake.
Cover the thermometers to prevent direct rays of the sun.

3. Check that the air filter is cleaned.

4. Open windows and doors of room.

5. Press the EMERGENCY OPERATION switch once(twice) to start the EMERGENCY COOL(HEAT) 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.

INDOOR UNIT

OUTDOOR UNIT

15

26.6

24.5

22.5

20.4

18.4

16.3

14.3

12.3

36.8

34.0

31.1

28.3

25.5

22.6

19.8

17.0

38.4

35.5

32.5

29.6

26.6

23.6

20.7

17.7

MUH-A18WV - E1

MSH-A24WV - E1

MSH-A18WV - E1

MUH-A24WV - E1

MSH-A30WV - E1

MUH-A30WV - E1

NOTE:The above curves are for the heating operation without any frost.

18

32

70(%)

230V

15 20

50

25
60

30 35

0.7

0.8

0.9

1.0

1.1

1.2

1.3

7

8

9

10

11

12

13

(:)

15 20

50

25
60

30
70(%)

35(:)

5

6

8

7

18 32

230V

18

32

70(%)

230V

15 20

50

25
60

30 35

0.6

0.7

0.8

0.9

1.0

1.1

(:)

6

7

8

9

10

11

10

11

8

9

230V

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(%)

MUH-A18WV -

E1

MUH-A18WV -

Outdoor unit current (A)

Ambient temperature(˚C)
Ambient humidity(%)

E1

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

Outdoor low pressure

MUH-A24WV -

Ambient temperature(˚C)
Ambient humidity(%)

E1

MUH-A24WV -

E1

Outdoor unit current (A)

Ambient temperature(˚C)
Ambient humidity(%)

16

14

13

12

11

230V

18

32

70(%)

230V

15 20

50

25
60

30 35

5

6

7

8

9

10

11

(:)

5

6

7

8

9

18

32

70(%)

230V

15 20

50

25
60

30 35

10

11

12

13

14

15

16

(:)

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

7

21

230V

(:)

5 10152025

16

17

18

19

20

MUH-A30WV -

E1

MUH-A30WV -

E1

Outdoor low pressure

HEAT operation

Condition indoor:Dry bulb temperature 20.0°C

Outdoor:Dry bulb temperature 7,15,20°C

MUH-A18WV -

10

9

8

Ambient temperature(˚C)
Ambient humidity(%)

Wet bulb temperature 14.5°C

Wet bulb temperature 6,12,14.5°C

E1

230V

Outdoor unit current(A)

Ambient temperature(˚C)
Ambient humidity(%)

MUH-A24WV -

E1

Outdoor unit current (A)

7

5 10152025

7

Ambient temperature(˚C)

MUH-A30WV -

Outdoor unit current(A)

Ambient temperature(˚C)

21

Outdoor unit current (A)

(:)

Ambient temperature(˚C)

E1

17

PERFORMANCE DATA COOL operation

MSH-A18WV - : MUH-A18WV - (230V)

CAPACITY : 5.0(KW) SHF : 0.65 INPUT : 1780(W)

INDOOR

DB(:)

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

INDOOR

WB(:)

21 18 5.88 2.76 0.47 1424 5.63 2.64 0.47 1495 5.40 2.54 0.47 1566 5.20 2.44 0.47 1638
21 20 6.13 2.14 0.35 1495 5.88 2.06 0.35 1584 5.70 2.00 0.35 1620 5.50 1.93 0.35 1691
22 18 5.88 3.00 0.51 1424 5.63 2.87 0.51 1495 5.40 2.75 0.51 1566 5.20 2.65 0.51 1638
22 20 6.13 2.39 0.39 1495 5.88 2.29 0.39 1584 5.70 2.22 0.39 1620 5.50 2.15 0.39 1691
22 22 6.38 1.72 0.27 1549 6.15 1.66 0.27 1647 6.00 1.62 0.27 1691 5.75 1.55 0.27 1762
23 18 5.88 3.23 0.55 1424 5.63 3.09 0.55 1495 5.40 2.97 0.55 1566 5.20 2.86 0.55 1638
23 20 6.13 2.63 0.43 1495 5.88 2.53 0.43 1584 5.70 2.45 0.43 1620 5.50 2.37 0.43 1691
23 22 6.38 1.98 0.31 1549 6.15 1.91 0.31 1647 6.00 1.86 0.31 1691 5.75 1.78 0.31 1762
24 18 5.88 3.47 0.59 1424 5.63 3.32 0.59 1495 5.40 3.19 0.59 1566 5.20 3.07 0.59 1638
24 20 6.13 2.88 0.47 1495 5.88 2.76 0.47 1584 5.70 2.68 0.47 1620 5.50 2.59 0.47 1691
24 22 6.38 2.23 0.35 1549 6.15 2.15 0.35 1647 6.00 2.10 0.35 1691 5.75 2.01 0.35 1762
24 24 6.70 1.54 0.23 1620 6.45 1.48 0.23 1709 6.30 1.45 0.23 1762 6.10 1.40 0.23 1851
25 18 5.88 3.70 0.63 1424 5.63 3.54 0.63 1495 5.40 3.40 0.63 1566 5.20 3.28 0.63 1638
25 20 6.13 3.12 0.51 1495 5.88 3.00 0.51 1584 5.70 2.91 0.51 1620 5.50 2.81 0.51 1691
25 22 6.38 2.49 0.39 1549 6.15 2.40 0.39 1647 6.00 2.34 0.39 1691 5.75 2.24 0.39 1762
25 24 6.70 1.81 0.27 1620 6.45 1.74 0.27 1709 6.30 1.70 0.27 1762 6.10 1.65 0.27 1851
26 18 5.88 3.94 0.67 1424 5.63 3.77 0.67 1495 5.40 3.62 0.67 1566 5.20 3.48 0.67 1638
26 20 6.13 3.37 0.55 1495 5.88 3.23 0.55 1584 5.70 3.14 0.55 1620 5.50 3.03 0.55 1691
26 22 6.38 2.74 0.43 1549 6.15 2.64 0.43 1647 6.00 2.58 0.43 1691 5.75 2.47 0.43 1762
26 24 6.70 2.08 0.31 1620 6.45 2.00 0.31 1709 6.30 1.95 0.31 1762 6.10 1.89 0.31 1851
26 26 6.90 1.31 0.19 1709 6.70 1.27 0.19 1798 6.60 1.25 0.19 1851 6.40 1.22 0.19 1905
27 18 5.88 4.17 0.71 1424 5.63 3.99 0.71 1495 5.40 3.83 0.71 1566 5.20 3.69 0.71 1638
27 20 6.13 3.61 0.59 1495 5.88 3.47 0.59 1584 5.70 3.36 0.59 1620 5.50 3.25 0.59 1691
27 22 6.38 3.00 0.47 1549 6.15 2.89 0.47 1647 6.00 2.82 0.47 1691 5.75 2.70 0.47 1762
27 24 6.70 2.35 0.35 1620 6.45 2.26 0.35 1709 6.30 2.21 0.35 1762 6.10 2.14 0.35 1851
27 26 6.90 1.59 0.23 1709 6.70 1.54 0.23 1798 6.60 1.52 0.23 1851 6.40 1.47 0.23 1905
28 18 5.88 4.41 0.75 1424 5.63 4.22 0.75 1495 5.40 4.05 0.75 1566 5.20 3.90 0.75 1638
28 20 6.13 3.86 0.63 1495 5.88 3.70 0.63 1584 5.70 3.59 0.63 1620 5.50 3.47 0.63 1691
28 22 6.38 3.25 0.51 1549 6.15 3.14 0.51 1647 6.00 3.06 0.51 1691 5.75 2.93 0.51 1762
28 24 6.70 2.61 0.39 1620 6.45 2.52 0.39 1709 6.30 2.46 0.39 1762 6.10 2.38 0.39 1851
28 26 6.90 1.86 0.27 1709 6.70 1.81 0.27 1798 6.60 1.78 0.27 1851 6.40 1.73 0.27 1905
29 18 5.88 4.64 0.79 1424 5.63 4.44 0.79 1495 5.40 4.27 0.79 1566 5.20 4.11 0.79 1638
29 20 6.13 4.10 0.67 1495 5.88 3.94 0.67 1584 5.70 3.82 0.67 1620 5.50 3.69 0.67 1691
29 22 6.38 3.51 0.55 1549 6.15 3.38 0.55 1647 6.00 3.30 0.55 1691 5.75 3.16 0.55 1762
29 24 6.70 2.88 0.43 1620 6.45 2.77 0.43 1709 6.30 2.71 0.43 1762 6.10 2.62 0.43 1851
29 26 6.90 2.14 0.31 1709 6.70 2.08 0.31 1798 6.60 2.05 0.31 1851 6.40 1.98 0.31 1905
30 18 5.88 4.88 0.83 1424 5.63 4.67 0.83 1495 5.40 4.48 0.83 1566 5.20 4.32 0.83 1638
30 20 6.13 4.35 0.71 1495 5.88 4.17 0.71 1584 5.70 4.05 0.71 1620 5.50 3.91 0.71 1691
30 22 6.38 3.76 0.59 1549 6.15 3.63 0.59 1647 6.00 3.54 0.59 1691 5.75 3.39 0.59 1762
30 24 6.70 3.15 0.47 1620 6.45 3.03 0.47 1709 6.30 2.96 0.47 1762 6.10 2.87 0.47 1851
30 26 6.90 2.42 0.35 1709 6.70 2.35 0.35 1798 6.60 2.31 0.35 1851 6.40 2.24 0.35 1905
31 18 5.88 5.11 0.87 1424 5.63 4.89 0.87 1495 5.40 4.70 0.87 1566 5.20 4.52 0.87 1638
31 20 6.13 4.59 0.75 1495 5.88 4.41 0.75 1584 5.70 4.28 0.75 1620 5.50 4.13 0.75 1691
31 22 6.38 4.02 0.63 1549 6.15 3.87 0.63 1647 6.00 3.78 0.63 1691 5.75 3.62 0.63 1762
31 24 6.70 3.42 0.51 1620 6.45 3.29 0.51 1709 6.30 3.21 0.51 1762 6.10 3.11 0.51 1851
31 26 6.90 2.69 0.39 1709 6.70 2.61 0.39 1798 6.60 2.57 0.39 1851 6.40 2.50 0.39 1905
32 18 5.88 5.35 0.91 1424 5.63 5.12 0.91 1495 5.40 4.91 0.91 1566 5.20 4.73 0.91 1638
32 20 6.13 4.84 0.79 1495 5.88 4.64 0.79 1584 5.70 4.50 0.79 1620 5.50 4.35 0.79 1691
32 22 6.38 4.27 0.67 1549 6.15 4.12 0.67 1647 6.00 4.02 0.67 1691 5.75 3.85 0.67 1762
32 24 6.70 3.69 0.55 1620 6.45 3.55 0.55 1709 6.30 3.47 0.55 1762 6.10 3.36 0.55 1851
32 26 6.90 2.97 0.43 1709 6.70 2.88 0.43 1798 6.60 2.84 0.43 1851 6.40 2.75 0.43 1905

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

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

21 2725 30

E1E1

OUTDOOR DB(:)

18

PERFORMANCE DATA COOL operation

MSH-A18WV - : MUH-A18WV - (230V)

CAPACITY : 5.0(KW) SHF : 0.65 INPUT : 1780(W)

INDOOR

DB(:)

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

INDOOR

WB(:)

21 18 4.90 2.30 0.47 1744 4.50 2.12 0.47 1851 4.33 2.03 0.47 1887
21 20 5.15 1.80 0.35 1816 4.80 1.68 0.35 1905 4.63 1.62 0.35 1958
22 18 4.90 2.50 0.51 1744 4.50 2.30 0.51 1851 4.33 2.21 0.51 1887
22 20 5.15 2.01 0.39 1816 4.80 1.87 0.39 1905 4.63 1.80 0.39 1958
22 22 5.45 1.47 0.27 1887 5.10 1.38 0.27 1994 4.93 1.33 0.27 2029
23 18 4.90 2.70 0.55 1744 4.50 2.48 0.55 1851 4.33 2.38 0.55 1887
23 20 5.15 2.21 0.43 1816 4.80 2.06 0.43 1905 4.63 1.99 0.43 1958
23 22 5.45 1.69 0.31 1887 5.10 1.58 0.31 1994 4.93 1.53 0.31 2029
24 18 4.90 2.89 0.59 1744 4.50 2.66 0.59 1851 4.33 2.55 0.59 1887
24 20 5.15 2.42 0.47 1816 4.80 2.26 0.47 1905 4.63 2.17 0.47 1958
24 22 5.45 1.91 0.35 1887 5.10 1.79 0.35 1994 4.93 1.72 0.35 2029
24 24 5.75 1.32 0.23 1958 5.40 1.24 0.23 2047 5.25 1.21 0.23 2092
25 18 4.90 3.09 0.63 1744 4.50 2.84 0.63 1851 4.33 2.72 0.63 1887
25 20 5.15 2.63 0.51 1816 4.80 2.45 0.51 1905 4.63 2.36 0.51 1958
25 22 5.45 2.13 0.39 1887 5.10 1.99 0.39 1994 4.93 1.92 0.39 2029
25 24 5.75 1.55 0.27 1958 5.40 1.46 0.27 2047 5.25 1.42 0.27 2092
26 18 4.90 3.28 0.67 1744 4.50 3.02 0.67 1851 4.33 2.90 0.67 1887
26 20 5.15 2.83 0.55 1816 4.80 2.64 0.55 1905 4.63 2.54 0.55 1958
26 22 5.45 2.34 0.43 1887 5.10 2.19 0.43 1994 4.93 2.12 0.43 2029
26 24 5.75 1.78 0.31 1958 5.40 1.67 0.31 2047 5.25 1.63 0.31 2092
26 26 6.05 1.15 0.19 2029 5.70 1.08 0.19 2118 5.53 1.05 0.19 2163
27 18 4.90 3.48 0.71 1744 4.50 3.20 0.71 1851 4.33 3.07 0.71 1887
27 20 5.15 3.04 0.59 1816 4.80 2.83 0.59 1905 4.63 2.73 0.59 1958
27 22 5.45 2.56 0.47 1887 5.10 2.40 0.47 1994 4.93 2.31 0.47 2029
27 24 5.75 2.01 0.35 1958 5.40 1.89 0.35 2047 5.25 1.84 0.35 2092
27 26 6.05 1.39 0.23 2029 5.70 1.31 0.23 2118 5.53 1.27 0.23 2163
28 18 4.90 3.68 0.75 1744 4.50 3.38 0.75 1851 4.33 3.24 0.75 1887
28 20 5.15 3.24 0.63 1816 4.80 3.02 0.63 1905 4.63 2.91 0.63 1958
28 22 5.45 2.78 0.51 1887 5.10 2.60 0.51 1994 4.93 2.51 0.51 2029
28 24 5.75 2.24 0.39 1958 5.40 2.11 0.39 2047 5.25 2.05 0.39 2092
28 26 6.05 1.63 0.27 2029 5.70 1.54 0.27 2118 5.53 1.49 0.27 2163
29 18 4.90 3.87 0.79 1744 4.50 3.56 0.79 1851 4.33 3.42 0.79 1887
29 20 5.15 3.45 0.67 1816 4.80 3.22 0.67 1905 4.63 3.10 0.67 1958
29 22 5.45 3.00 0.55 1887 5.10 2.81 0.55 1994 4.93 2.71 0.55 2029
29 24 5.75 2.47 0.43 1958 5.40 2.32 0.43 2047 5.25 2.26 0.43 2092
29 26 6.05 1.88 0.31 2029 5.70 1.77 0.31 2118 5.53 1.71 0.31 2163
30 18 4.90 4.07 0.83 1744 4.50 3.74 0.83 1851 4.33 3.59 0.83 1887
30 20 5.15 3.66 0.71 1816 4.80 3.41 0.71 1905 4.63 3.28 0.71 1958
30 22 5.45 3.22 0.59 1887 5.10 3.01 0.59 1994 4.93 2.91 0.59 2029
30 24 5.75 2.70 0.47 1958 5.40 2.54 0.47 2047 5.25 2.47 0.47 2092
30 26 6.05 2.12 0.35 2029 5.70 2.00 0.35 2118 5.53 1.93 0.35 2163
31 18 4.90 4.26 0.87 1744 4.50 3.92 0.87 1851 4.33 3.76 0.87 1887
31 20 5.15 3.86 0.75 1816 4.80 3.60 0.75 1905 4.63 3.47 0.75 1958
31 22 5.45 3.43 0.63 1887 5.10 3.21 0.63 1994 4.93 3.10 0.63 2029
31 24 5.75 2.93 0.51 1958 5.40 2.75 0.51 2047 5.25 2.68 0.51 2092
31 26 6.05 2.36 0.39 2029 5.70 2.22 0.39 2118 5.53 2.15 0.39 2163
32 18 4.90 4.46 0.91 1744 4.50 4.10 0.91 1851 4.33 3.94 0.91 1887
32 20 5.15 4.07 0.79 1816 4.80 3.79 0.79 1905 4.63 3.65 0.79 1958
32 22 5.45 3.65 0.67 1887 5.10 3.42 0.67 1994 4.93 3.30 0.67 2029
32 24 5.75 3.16 0.55 1958 5.40 2.97 0.55 2047 5.25 2.89 0.55 2092
32 26 6.05 2.60 0.43 2029 5.70 2.45 0.43 2118 5.53 2.38 0.43 2163

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

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

35 4340

E1E1

OUTDOOR DB(:)

19

PERFORMANCE DATA COOL operation

MSH-A24WV - : MUH-A24WV - (230V)

CAPACITY : 6.3(KW) SHF : 0.64 INPUT : 2410(W)

INDOOR

DB(:)

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

INDOOR

WB(:)

21 18 7.40 3.41 0.46 1928 7.09 3.26 0.46 2024 6.80 3.13 0.46 2121 6.55 3.01 0.46 2217
21 20 7.72 2.62 0.34 2024 7.40 2.52 0.34 2145 7.18 2.44 0.34 2193 6.93 2.36 0.34 2290
22 18 7.40 3.70 0.50 1928 7.09 3.54 0.50 2024 6.80 3.40 0.50 2121 6.55 3.28 0.50 2217
22 20 7.72 2.93 0.38 2024 7.40 2.81 0.38 2145 7.18 2.73 0.38 2193 6.93 2.63 0.38 2290
22 22 8.03 2.09 0.26 2097 7.75 2.01 0.26 2229 7.56 1.97 0.26 2290 7.25 1.88 0.26 2386
23 18 7.40 4.00 0.54 1928 7.09 3.83 0.54 2024 6.80 3.67 0.54 2121 6.55 3.54 0.54 2217
23 20 7.72 3.24 0.42 2024 7.40 3.11 0.42 2145 7.18 3.02 0.42 2193 6.93 2.91 0.42 2290
23 22 8.03 2.41 0.30 2097 7.75 2.32 0.30 2229 7.56 2.27 0.30 2290 7.25 2.17 0.30 2386
24 18 7.40 4.29 0.58 1928 7.09 4.11 0.58 2024 6.80 3.95 0.58 2121 6.55 3.80 0.58 2217
24 20 7.72 3.55 0.46 2024 7.40 3.41 0.46 2145 7.18 3.30 0.46 2193 6.93 3.19 0.46 2290
24 22 8.03 2.73 0.34 2097 7.75 2.63 0.34 2229 7.56 2.57 0.34 2290 7.25 2.46 0.34 2386
24 24 8.44 1.86 0.22 2193 8.13 1.79 0.22 2314 7.94 1.75 0.22 2386 7.69 1.69 0.22 2506
25 18 7.40 4.59 0.62 1928 7.09 4.39 0.62 2024 6.80 4.22 0.62 2121 6.55 4.06 0.62 2217
25 20 7.72 3.86 0.50 2024 7.40 3.70 0.50 2145 7.18 3.59 0.50 2193 6.93 3.47 0.50 2290
25 22 8.03 3.05 0.38 2097 7.75 2.94 0.38 2229 7.56 2.87 0.38 2290 7.25 2.75 0.38 2386
25 24 8.44 2.19 0.26 2193 8.13 2.11 0.26 2314 7.94 2.06 0.26 2386 7.69 2.00 0.26 2506
26 18 7.40 4.89 0.66 1928 7.09 4.68 0.66 2024 6.80 4.49 0.66 2121 6.55 4.32 0.66 2217
26 20 7.72 4.17 0.54 2024 7.40 4.00 0.54 2145 7.18 3.88 0.54 2193 6.93 3.74 0.54 2290
26 22 8.03 3.37 0.42 2097 7.75 3.25 0.42 2229 7.56 3.18 0.42 2290 7.25 3.04 0.42 2386
26 24 8.44 2.53 0.30 2193 8.13 2.44 0.30 2314 7.94 2.38 0.30 2386 7.69 2.31 0.30 2506
26 26 8.69 1.56 0.18 2314 8.44 1.52 0.18 2434 8.32 1.50 0.18 2506 8.06 1.45 0.18 2579
27 18 7.40 5.18 0.70 1928 7.09 4.96 0.70 2024 6.80 4.76 0.70 2121 6.55 4.59 0.70 2217
27 20 7.72 4.48 0.58 2024 7.40 4.29 0.58 2145 7.18 4.17 0.58 2193 6.93 4.02 0.58 2290
27 22 8.03 3.69 0.46 2097 7.75 3.56 0.46 2229 7.56 3.48 0.46 2290 7.25 3.33 0.46 2386
27 24 8.44 2.87 0.34 2193 8.13 2.76 0.34 2314 7.94 2.70 0.34 2386 7.69 2.61 0.34 2506
27 26 8.69 1.91 0.22 2314 8.44 1.86 0.22 2434 8.32 1.83 0.22 2506 8.06 1.77 0.22 2579
28 18 7.40 5.48 0.74 1928 7.09 5.24 0.74 2024 6.80 5.03 0.74 2121 6.55 4.85 0.74 2217
28 20 7.72 4.78 0.62 2024 7.40 4.59 0.62 2145 7.18 4.45 0.62 2193 6.93 4.30 0.62 2290
28 22 8.03 4.02 0.50 2097 7.75 3.87 0.50 2229 7.56 3.78 0.50 2290 7.25 3.62 0.50 2386
28 24 8.44 3.21 0.38 2193 8.13 3.09 0.38 2314 7.94 3.02 0.38 2386 7.69 2.92 0.38 2506
28 26 8.69 2.26 0.26 2314 8.44 2.19 0.26 2434 8.32 2.16 0.26 2506 8.06 2.10 0.26 2579
29 18 7.40 5.77 0.78 1928 7.09 5.53 0.78 2024 6.80 5.31 0.78 2121 6.55 5.11 0.78 2217
29 20 7.72 5.09 0.66 2024 7.40 4.89 0.66 2145 7.18 4.74 0.66 2193 6.93 4.57 0.66 2290
29 22 8.03 4.34 0.54 2097 7.75 4.18 0.54 2229 7.56 4.08 0.54 2290 7.25 3.91 0.54 2386
29 24 8.44 3.55 0.42 2193 8.13 3.41 0.42 2314 7.94 3.33 0.42 2386 7.69 3.23 0.42 2506
29 26 8.69 2.61 0.30 2314 8.44 2.53 0.30 2434 8.32 2.49 0.30 2506 8.06 2.42 0.30 2579
30 18 7.40 6.07 0.82 1928 7.09 5.81 0.82 2024 6.80 5.58 0.82 2121 6.55 5.37 0.82 2217
30 20 7.72 5.40 0.70 2024 7.40 5.18 0.70 2145 7.18 5.03 0.70 2193 6.93 4.85 0.70 2290
30 22 8.03 4.66 0.58 2097 7.75 4.49 0.58 2229 7.56 4.38 0.58 2290 7.25 4.20 0.58 2386
30 24 8.44 3.88 0.46 2193 8.13 3.74 0.46 2314 7.94 3.65 0.46 2386 7.69 3.54 0.46 2506
30 26 8.69 2.96 0.34 2314 8.44 2.87 0.34 2434 8.32 2.83 0.34 2506 8.06 2.74 0.34 2579
31 18 7.40 6.37 0.86 1928 7.09 6.10 0.86 2024 6.80 5.85 0.86 2121 6.55 5.63 0.86 2217
31 20 7.72 5.71 0.74 2024 7.40 5.48 0.74 2145 7.18 5.31 0.74 2193 6.93 5.13 0.74 2290
31 22 8.03 4.98 0.62 2097 7.75 4.80 0.62 2229 7.56 4.69 0.62 2290 7.25 4.49 0.62 2386
31 24 8.44 4.22 0.50 2193 8.13 4.06 0.50 2314 7.94 3.97 0.50 2386 7.69 3.84 0.50 2506
31 26 8.69 3.30 0.38 2314 8.44 3.21 0.38 2434 8.32 3.16 0.38 2506 8.06 3.06 0.38 2579
32 18 7.40 6.66 0.90 1928 7.09 6.38 0.90 2024 6.80 6.12 0.90 2121 6.55 5.90 0.90 2217
32 20 7.72 6.02 0.78 2024 7.40 5.77 0.78 2145 7.18 5.60 0.78 2193 6.93 5.41 0.78 2290
32 22 8.03 5.30 0.66 2097 7.75 5.11 0.66 2229 7.56 4.99 0.66 2290 7.25 4.78 0.66 2386
32 24 8.44 4.56 0.54 2193 8.13 4.39 0.54 2314 7.94 4.29 0.54 2386 7.69 4.15 0.54 2506
32 26 8.69 3.65 0.42 2314 8.44 3.55 0.42 2434 8.32 3.49 0.42 2506 8.06 3.39 0.42 2579

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

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

21 2725 30

E1E1

OUTDOOR DB(:)

20

PERFORMANCE DATA COOL operation

MSH-A24WV - : MUH-A24WV - (230V)

CAPACITY : 6.3(KW) SHF : 0.64 INPUT : 2410(W)

INDOOR

DB(:)

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

INDOOR

WB(:)

21 18 6.17 2.84 0.46 2362 5.67 2.61 0.46 2506 5.45 2.51 0.46 2555
21 20 6.49 2.21 0.34 2458 6.05 2.06 0.34 2579 5.83 1.98 0.34 2651
22 18 6.17 3.09 0.50 2362 5.67 2.84 0.50 2506 5.45 2.72 0.50 2555
22 20 6.49 2.47 0.38 2458 6.05 2.30 0.38 2579 5.83 2.21 0.38 2651
22 22 6.87 1.79 0.26 2555 6.43 1.67 0.26 2699 6.21 1.61 0.26 2747
23 18 6.17 3.33 0.54 2362 5.67 3.06 0.54 2506 5.45 2.94 0.54 2555
23 20 6.49 2.73 0.42 2458 6.05 2.54 0.42 2579 5.83 2.45 0.42 2651
23 22 6.87 2.06 0.30 2555 6.43 1.93 0.30 2699 6.21 1.86 0.30 2747
24 18 6.17 3.58 0.58 2362 5.67 3.29 0.58 2506 5.45 3.16 0.58 2555
24 20 6.49 2.98 0.46 2458 6.05 2.78 0.46 2579 5.83 2.68 0.46 2651
24 22 6.87 2.33 0.34 2555 6.43 2.18 0.34 2699 6.21 2.11 0.34 2747
24 24 7.25 1.59 0.22 2651 6.80 1.50 0.22 2772 6.62 1.46 0.22 2832
25 18 6.17 3.83 0.62 2362 5.67 3.52 0.62 2506 5.45 3.38 0.62 2555
25 20 6.49 3.24 0.50 2458 6.05 3.02 0.50 2579 5.83 2.91 0.50 2651
25 22 6.87 2.61 0.38 2555 6.43 2.44 0.38 2699 6.21 2.36 0.38 2747
25 24 7.25 1.88 0.26 2651 6.80 1.77 0.26 2772 6.62 1.72 0.26 2832
26 18 6.17 4.07 0.66 2362 5.67 3.74 0.66 2506 5.45 3.60 0.66 2555
26 20 6.49 3.50 0.54 2458 6.05 3.27 0.54 2579 5.83 3.15 0.54 2651
26 22 6.87 2.88 0.42 2555 6.43 2.70 0.42 2699 6.21 2.61 0.42 2747
26 24 7.25 2.17 0.30 2651 6.80 2.04 0.30 2772 6.62 1.98 0.30 2832
26 26 7.62 1.37 0.18 2747 7.18 1.29 0.18 2868 6.96 1.25 0.18 2928
27 18 6.17 4.32 0.70 2362 5.67 3.97 0.70 2506 5.45 3.81 0.70 2555
27 20 6.49 3.76 0.58 2458 6.05 3.51 0.58 2579 5.83 3.38 0.58 2651
27 22 6.87 3.16 0.46 2555 6.43 2.96 0.46 2699 6.21 2.85 0.46 2747
27 24 7.25 2.46 0.34 2651 6.80 2.31 0.34 2772 6.62 2.25 0.34 2832
27 26 7.62 1.68 0.22 2747 7.18 1.58 0.22 2868 6.96 1.53 0.22 2928
28 18 6.17 4.57 0.74 2362 5.67 4.20 0.74 2506 5.45 4.03 0.74 2555
28 20 6.49 4.02 0.62 2458 6.05 3.75 0.62 2579 5.83 3.61 0.62 2651
28 22 6.87 3.43 0.50 2555 6.43 3.21 0.50 2699 6.21 3.10 0.50 2747
28 24 7.25 2.75 0.38 2651 6.80 2.59 0.38 2772 6.62 2.51 0.38 2832
28 26 7.62 1.98 0.26 2747 7.18 1.87 0.26 2868 6.96 1.81 0.26 2928
29 18 6.17 4.82 0.78 2362 5.67 4.42 0.78 2506 5.45 4.25 0.78 2555
29 20 6.49 4.28 0.66 2458 6.05 3.99 0.66 2579 5.83 3.85 0.66 2651
29 22 6.87 3.71 0.54 2555 6.43 3.47 0.54 2699 6.21 3.35 0.54 2747
29 24 7.25 3.04 0.42 2651 6.80 2.86 0.42 2772 6.62 2.78 0.42 2832
29 26 7.62 2.29 0.30 2747 7.18 2.15 0.30 2868 6.96 2.09 0.30 2928
30 18 6.17 5.06 0.82 2362 5.67 4.65 0.82 2506 5.45 4.47 0.82 2555
30 20 6.49 4.54 0.70 2458 6.05 4.23 0.70 2579 5.83 4.08 0.70 2651
30 22 6.87 3.98 0.58 2555 6.43 3.73 0.58 2699 6.21 3.60 0.58 2747
30 24 7.25 3.33 0.46 2651 6.80 3.13 0.46 2772 6.62 3.04 0.46 2832
30 26 7.62 2.59 0.34 2747 7.18 2.44 0.34 2868 6.96 2.37 0.34 2928
31 18 6.17 5.31 0.86 2362 5.67 4.88 0.86 2506 5.45 4.69 0.86 2555
31 20 6.49 4.80 0.74 2458 6.05 4.48 0.74 2579 5.83 4.31 0.74 2651
31 22 6.87 4.26 0.62 2555 6.43 3.98 0.62 2699 6.21 3.85 0.62 2747
31 24 7.25 3.62 0.50 2651 6.80 3.40 0.50 2772 6.62 3.31 0.50 2832
31 26 7.62 2.90 0.38 2747 7.18 2.73 0.38 2868 6.96 2.65 0.38 2928
32 18 6.17 5.56 0.90 2362 5.67 5.10 0.90 2506 5.45 4.90 0.90 2555
32 20 6.49 5.06 0.78 2458 6.05 4.72 0.78 2579 5.83 4.55 0.78 2651
32 22 6.87 4.53 0.66 2555 6.43 4.24 0.66 2699 6.21 4.10 0.66 2747
32 24 7.25 3.91 0.54 2651 6.80 3.67 0.54 2772 6.62 3.57 0.54 2832
32 26 7.62 3.20 0.42 2747 7.18 3.02 0.42 2868 6.96 2.92 0.42 2928

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

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

35 4340

E1E1

OUTDOOR DB(:)

21

21 18 9.99 4.39 0.44 2608 9.56 4.21 0.44 2738 9.18 4.04 0.44 2869 8.84 3.89 0.44 2999
21 20 10.41 3.33 0.32 2738 9.99 3.20 0.32 2901 9.69 3.10 0.32 2967 9.35 2.99 0.32 3097
22 18 9.99 4.79 0.48 2608 9.56 4.59 0.48 2738 9.18 4.41 0.48 2869 8.84 4.24 0.48 2999
22 20 10.41 3.75 0.36 2738 9.99 3.60 0.36 2901 9.69 3.49 0.36 2967 9.35 3.37 0.36 3097
22 22 10.84 2.60 0.24 2836 10.46 2.51 0.24 3016 10.20 2.45 0.24 3097 9.78 2.35 0.24 3227
23 18 9.99 5.19 0.52 2608 9.56 4.97 0.52 2738 9.18 4.77 0.52 2869 8.84 4.60 0.52 2999
23 20 10.41 4.17 0.40 2738 9.99 4.00 0.40 2901 9.69 3.88 0.40 2967 9.35 3.74 0.40 3097
23 22 10.84 3.03 0.28 2836 10.46 2.93 0.28 3016 10.20 2.86 0.28 3097 9.78 2.74 0.28 3227
24 18 9.99 5.59 0.56 2608 9.56 5.36 0.56 2738 9.18 5.14 0.56 2869 8.84 4.95 0.56 2999
24 20 10.41 4.58 0.44 2738 9.99 4.39 0.44 2901 9.69 4.26 0.44 2967 9.35 4.11 0.44 3097
24 22 10.84 3.47 0.32 2836 10.46 3.35 0.32 3016 10.20 3.26 0.32 3097 9.78 3.13 0.32 3227
24 24 11.39 2.28 0.20 2967 10.97 2.19 0.20 3130 10.71 2.14 0.20 3227 10.37 2.07 0.20 3390
25 18 9.99 5.99 0.60 2608 9.56 5.74 0.60 2738 9.18 5.51 0.60 2869 8.84 5.30 0.60 2999
25 20 10.41 5.00 0.48 2738 9.99 4.79 0.48 2901 9.69 4.65 0.48 2967 9.35 4.49 0.48 3097
25 22 10.84 3.90 0.36 2836 10.46 3.76 0.36 3016 10.20 3.67 0.36 3097 9.78 3.52 0.36 3227
25 24 11.39 2.73 0.24 2967 10.97 2.63 0.24 3130 10.71 2.57 0.24 3227 10.37 2.49 0.24 3390
26 18 9.99 6.39 0.64 2608 9.56 6.12 0.64 2738 9.18 5.88 0.64 2869 8.84 5.66 0.64 2999
26 20 10.41 5.41 0.52 2738 9.99 5.19 0.52 2901 9.69 5.04 0.52 2967 9.35 4.86 0.52 3097
26 22 10.84 4.34 0.40 2836 10.46 4.18 0.40 3016 10.20 4.08 0.40 3097 9.78 3.91 0.40 3227
26 24 11.39 3.19 0.28 2967 10.97 3.07 0.28 3130 10.71 3.00 0.28 3227 10.37 2.90 0.28 3390
26 26 11.73 1.88 0.16 3130 11.39 1.82 0.16 3293 11.22 1.80 0.16 3390 10.88 1.74 0.16 3488
27 18 9.99 6.79 0.68 2608 9.56 6.50 0.68 2738 9.18 6.24 0.68 2869 8.84 6.01 0.68 2999
27 20 10.41 5.83 0.56 2738 9.99 5.59 0.56 2901 9.69 5.43 0.56 2967 9.35 5.24 0.56 3097
27 22 10.84 4.77 0.44 2836 10.46 4.60 0.44 3016 10.20 4.49 0.44 3097 9.78 4.30 0.44 3227
27 24 11.39 3.64 0.32 2967 10.97 3.51 0.32 3130 10.71 3.43 0.32 3227 10.37 3.32 0.32 3390
27 26 11.73 2.35 0.20 3130 11.39 2.28 0.20 3293 11.22 2.24 0.20 3390 10.88 2.18 0.20 3488
28 18 9.99 7.19 0.72 2608 9.56 6.89 0.72 2738 9.18 6.61 0.72 2869 8.84 6.36 0.72 2999
28 20 10.41 6.25 0.60 2738 9.99 5.99 0.60 2901 9.69 5.81 0.60 2967 9.35 5.61 0.60 3097
28 22 10.84 5.20 0.48 2836 10.46 5.02 0.48 3016 10.20 4.90 0.48 3097 9.78 4.69 0.48 3227
28 24 11.39 4.10 0.36 2967 10.97 3.95 0.36 3130 10.71 3.86 0.36 3227 10.37 3.73 0.36 3390
28 26 11.73 2.82 0.24 3130 11.39 2.73 0.24 3293 11.22 2.69 0.24 3390 10.88 2.61 0.24 3488
29 18 9.99 7.59 0.76 2608 9.56 7.27 0.76 2738 9.18 6.98 0.76 2869 8.84 6.72 0.76 2999
29 20 10.41 6.66 0.64 2738 9.99 6.39 0.64 2901 9.69 6.20 0.64 2967 9.35 5.98 0.64 3097
29 22 10.84 5.64 0.52 2836 10.46 5.44 0.52 3016 10.20 5.30 0.52 3097 9.78 5.08 0.52 3227
29 24 11.39 4.56 0.40 2967 10.97 4.39 0.40 3130 10.71 4.28 0.40 3227 10.37 4.15 0.40 3390
29 26 11.73 3.28 0.28 3130 11.39 3.19 0.28 3293 11.22 3.14 0.28 3390 10.88 3.05 0.28 3488
30 18 9.99 7.99 0.80 2608 9.56 7.65 0.80 2738 9.18 7.34 0.80 2869 8.84 7.07 0.80 2999
30 20 10.41 7.08 0.68 2738 9.99 6.79 0.68 2901 9.69 6.59 0.68 2967 9.35 6.36 0.68 3097
30 22 10.84 6.07 0.56 2836 10.46 5.85 0.56 3016 10.20 5.71 0.56 3097 9.78 5.47 0.56 3227
30 24 11.39 5.01 0.44 2967 10.97 4.82 0.44 3130 10.71 4.71 0.44 3227 10.37 4.56 0.44 3390
30 26 11.73 3.75 0.32 3130 11.39 3.64 0.32 3293 11.22 3.59 0.32 3390 10.88 3.48 0.32 3488
31 18 9.99 8.39 0.84 2608 9.56 8.03 0.84 2738 9.18 7.71 0.84 2869 8.84 7.43 0.84 2999
31 20 10.41 7.50 0.72 2738 9.99 7.19 0.72 2901 9.69 6.98 0.72 2967 9.35 6.73 0.72 3097
31 22 10.84 6.50 0.60 2836 10.46 6.27 0.60 3016 10.20 6.12 0.60 3097 9.78 5.87 0.60 3227
31 24 11.39 5.47 0.48 2967 10.97 5.26 0.48 3130 10.71 5.14 0.48 3227 10.37 4.98 0.48 3390
31 26 11.73 4.22 0.36 3130 11.39 4.10 0.36 3293 11.22 4.04 0.36 3390 10.88 3.92 0.36 3488
32 18 9.99 8.79 0.88 2608 9.56 8.42 0.88 2738 9.18 8.08 0.88 2869 8.84 7.78 0.88 2999
32 20 10.41 7.91 0.76 2738 9.99 7.59 0.76 2901 9.69 7.36 0.76 2967 9.35 7.11 0.76 3097
32 22 10.84 6.94 0.64 2836 10.46 6.69 0.64 3016 10.20 6.53 0.64 3097 9.78 6.26 0.64 3227
32 24 11.39 5.92 0.52 2967 10.97 5.70 0.52 3130 10.71 5.57 0.52 3227 10.37 5.39 0.52 3390
32 26 11.73 4.69 0.40 3130 11.39 4.56 0.40 3293 11.22 4.49 0.40 3390 10.88 4.35 0.40 3488

INDOOR

DB(:)

INDOOR

WB(:)

OUTDOOR DB(:)

21 2725 30

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

CAPACITY : 8.5(KW) SHF : 0.62 INPUT : 3260(W)

PERFORMANCE DATA COOL operation

MSH-A30WV - : MUH-A30WV - (230V)

E1E1

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

22

PERFORMANCE DATA COOL operation

MSH-A30WV - : MUH-A30WV - (230V)

CAPACITY : 8.5(KW) SHF : 0.62 INPUT : 3260(W)

INDOOR

DB(:)

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

INDOOR

WB(:)

21 18 8.33 3.67 0.44 3195 7.65 3.37 0.44 3390 7.35 3.24 0.44 3456
21 20 8.76 2.80 0.32 3325 8.16 2.61 0.32 3488 7.86 2.52 0.32 3586
22 18 8.33 4.00 0.48 3195 7.65 3.67 0.48 3390 7.35 3.53 0.48 3456
22 20 8.76 3.15 0.36 3325 8.16 2.94 0.36 3488 7.86 2.83 0.36 3586
22 22 9.27 2.22 0.24 3456 8.67 2.08 0.24 3651 8.37 2.01 0.24 3716
23 18 8.33 4.33 0.52 3195 7.65 3.98 0.52 3390 7.35 3.82 0.52 3456
23 20 8.76 3.50 0.40 3325 8.16 3.26 0.40 3488 7.86 3.15 0.40 3586
23 22 9.27 2.59 0.28 3456 8.67 2.43 0.28 3651 8.37 2.34 0.28 3716
24 18 8.33 4.66 0.56 3195 7.65 4.28 0.56 3390 7.35 4.12 0.56 3456
24 20 8.76 3.85 0.44 3325 8.16 3.59 0.44 3488 7.86 3.46 0.44 3586
24 22 9.27 2.96 0.32 3456 8.67 2.77 0.32 3651 8.37 2.68 0.32 3716
24 24 9.78 1.96 0.20 3586 9.18 1.84 0.20 3749 8.93 1.79 0.20 3831
25 18 8.33 5.00 0.60 3195 7.65 4.59 0.60 3390 7.35 4.41 0.60 3456
25 20 8.76 4.20 0.48 3325 8.16 3.92 0.48 3488 7.86 3.77 0.48 3586
25 22 9.27 3.34 0.36 3456 8.67 3.12 0.36 3651 8.37 3.01 0.36 3716
25 24 9.78 2.35 0.24 3586 9.18 2.20 0.24 3749 8.93 2.14 0.24 3831
26 18 8.33 5.33 0.64 3195 7.65 4.90 0.64 3390 7.35 4.71 0.64 3456
26 20 8.76 4.55 0.52 3325 8.16 4.24 0.52 3488 7.86 4.09 0.52 3586
26 22 9.27 3.71 0.40 3456 8.67 3.47 0.40 3651 8.37 3.35 0.40 3716
26 24 9.78 2.74 0.28 3586 9.18 2.57 0.28 3749 8.93 2.50 0.28 3831
26 26 10.29 1.65 0.16 3716 9.69 1.55 0.16 3879 9.39 1.50 0.16 3961
27 18 8.33 5.66 0.68 3195 7.65 5.20 0.68 3390 7.35 5.00 0.68 3456
27 20 8.76 4.90 0.56 3325 8.16 4.57 0.56 3488 7.86 4.40 0.56 3586
27 22 9.27 4.08 0.44 3456 8.67 3.81 0.44 3651 8.37 3.68 0.44 3716
27 24 9.78 3.13 0.32 3586 9.18 2.94 0.32 3749 8.93 2.86 0.32 3831
27 26 10.29 2.06 0.20 3716 9.69 1.94 0.20 3879 9.39 1.88 0.20 3961
28 18 8.33 6.00 0.72 3195 7.65 5.51 0.72 3390 7.35 5.29 0.72 3456
28 20 8.76 5.25 0.60 3325 8.16 4.90 0.60 3488 7.86 4.72 0.60 3586
28 22 9.27 4.45 0.48 3456 8.67 4.16 0.48 3651 8.37 4.02 0.48 3716
28 24 9.78 3.52 0.36 3586 9.18 3.30 0.36 3749 8.93 3.21 0.36 3831
28 26 10.29 2.47 0.24 3716 9.69 2.33 0.24 3879 9.39 2.25 0.24 3961
29 18 8.33 6.33 0.76 3195 7.65 5.81 0.76 3390 7.35 5.59 0.76 3456
29 20 8.76 5.60 0.64 3325 8.16 5.22 0.64 3488 7.86 5.03 0.64 3586
29 22 9.27 4.82 0.52 3456 8.67 4.51 0.52 3651 8.37 4.35 0.52 3716
29 24 9.78 3.91 0.40 3586 9.18 3.67 0.40 3749 8.93 3.57 0.40 3831
29 26 10.29 2.88 0.28 3716 9.69 2.71 0.28 3879 9.39 2.63 0.28 3961
30 18 8.33 6.66 0.80 3195 7.65 6.12 0.80 3390 7.35 5.88 0.80 3456
30 20 8.76 5.95 0.68 3325 8.16 5.55 0.68 3488 7.86 5.35 0.68 3586
30 22 9.27 5.19 0.56 3456 8.67 4.86 0.56 3651 8.37 4.69 0.56 3716
30 24 9.78 4.30 0.44 3586 9.18 4.04 0.44 3749 8.93 3.93 0.44 3831
30 26 10.29 3.29 0.32 3716 9.69 3.10 0.32 3879 9.39 3.01 0.32 3961
31 18 8.33 7.00 0.84 3195 7.65 6.43 0.84 3390 7.35 6.18 0.84 3456
31 20 8.76 6.30 0.72 3325 8.16 5.88 0.72 3488 7.86 5.66 0.72 3586
31 22 9.27 5.56 0.60 3456 8.67 5.20 0.60 3651 8.37 5.02 0.60 3716
31 24 9.78 4.69 0.48 3586 9.18 4.41 0.48 3749 8.93 4.28 0.48 3831
31 26 10.29 3.70 0.36 3716 9.69 3.49 0.36 3879 9.39 3.38 0.36 3961
32 18 8.33 7.33 0.88 3195 7.65 6.73 0.88 3390 7.35 6.47 0.88 3456
32 20 8.76 6.65 0.76 3325 8.16 6.20 0.76 3488 7.86 5.98 0.76 3586
32 22 9.27 5.93 0.64 3456 8.67 5.55 0.64 3651 8.37 5.36 0.64 3716
32 24 9.78 5.08 0.52 3586 9.18 4.77 0.52 3749 8.93 4.64 0.52 3831
32 26 10.29 4.11 0.40 3716 9.69 3.88 0.40 3879 9.39 3.76 0.40 3961

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

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

35 4340

E1E1

OUTDOOR DB(:)

23

OUTDOOR WB(:)

INDOOR

-10 -5 0 5 10 15 20

DB(:)

Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT

CAPACITY : 5.2(KW)

INPUT : 1610(W)

15
21
26

3.28

3.12

2.81

1047
1127
1208

3.95

3.74

3.48

1256
1336
1417

4.63

4.42

4.11

1417
1481
1562

5.30

5.04

4.78

1530
1594
1674

5.98

5.72

5.46

1626
1674
1755

6.60

6.34

6.08

1674
1723
1803

7.28

6.99

6.76

1707
1787
1852

PERFORMANCE DATA HEAT operation

OUTDOOR WB(:)

INDOOR

-10 -5 0 5 10 15 20

DB(:)

Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT

CAPACITY : 7.2(KW)

INPUT : 2480(W)

15
21
26

4.54

4.32

3.89

1612
1736
1860

5.47

5.18

4.82

1934
2058
2182

6.41

6.12

5.69

2182
2282
2406

7.34

6.98

6.62

2356
2455
2579

8.28

7.92

7.56

2505
2579
2703

9.14

8.78

8.42

2579
2654
2778

10.08

9.68

9.36

2629
2753
2852

OUTDOOR WB(:)

INDOOR

-10 -5

0 5 10 15 20

DB(:)

Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT

CAPACITY : 9.4(KW)

INPUT : 3430(W)

15
21
26

5.92

5.64

5.08

2230
2401
2573

7.14

6.77

6.30

2675
2847
3018

8.37

7.99

7.43

3018
3156
3327

9.59

9.12

8.65

3259
3396
3567

10.81

10.34

9.87

3464
3567
3739

11.94

11.47

11.00

3567
3670
3842

13.16

12.64

12.22

3636
3807
3945

MSH-A18WV - : MUH-A18WV - (230V)

NOTE Q :Total capacity (kW) INPUT:Total power input (W) DB : Dry-bulb temperature

E1E1

MSH-A24WV - : MUH-A24WV - (230V)

NOTE Q :Total capacity (kW) INPUT:Total power input (W) DB : Dry-bulb temperature

MSH-A30WV - : MUH-A30WV - (230V)

NOTE Q :Total capacity (kW) INPUT:Total power input (W) DB : Dry-bulb temperature

E1E1

E1E1

24

9

Outdoor fan speed

20: 22:

High

Ambient temperature
thermistor RT63 temperature

Low

High pressure protection

Released

48: 52:

ON

Outdoor fan

OFF

55:

(MUH-A18WV)
(MUH-A24WV) 58:

Outdoor fan speed

13: 18:

High

Ambient temperature
thermistor RT63 temperature

Low

MICROPROCESSOR CONTROL

MUH-A18WV - MUH-A24WV - MUH-A30WV -

E1E1E1

9-1. “I FEEL CONTROL” ( ) OPERATION
9-1-1. COOL mode of “I FEEL CONTROL”

1. Outdoor fan speed control <MUH-A30WV>

Outdoor fan speed is controlled according to the temperature of ambient temperature thermistor RT63.
Outdoor fan Low operation : When the outside temperature decreases to 20°C or less.

Until the outside temperature goes to 22°C.

Outdoor fan High operation : Until the outside temperature decreases to 20°C or less.

When the outside temperature goes to 22°C.

NOTE1. : If the temperature of RT63 reads from 20: to 22: at the air conditioner starting outdoor fan speed is High.
NOTE2. : When indoor fan speed is Low except HEAT operation mode and the outside temperature is 30: or less, the

outdoor fan operates at Low.

Outdoor fan Low operation is cancelled according to the following conditions(1 or 2):

1 When the operation is not changed and the outside temperature goes to 33: or more.
2 When the operation is changed. (Change to HEAT operation mode / Change of the indoor fan speed)

2. Discharge temperature protection <MUH-A30WV>

The compressor is controlled by the temperature of discharge temperature thermistor RT62 for excess rise protection of
compressor discharge pressure.

• Compressor
When the temperature of discharge temperature thermistor RT62 goes to 120: or more, the compressor is turned OFF.

After 3 minutes since the compressor has been turned OFF, if the temperature of discharge temperature thermistor RT62
becomes 100: or less, the compressor is turned ON.

9-1-2. DRY mode of “I FEEL CONTROL”

1. Outdoor fan speed control <MUH-A30WV>

Outdoor fan speed control is as same as one of COOL mode of “I FEEL CONTROL”.

9-1-3. HEAT mode of “I FEEL CONTROL”

1. Outdoor fan speed control <MUH-A30WV>

Outdoor fan speed is controlled according to the temperature of ambient temperature thermistor RT63.
Outdoor fan Low operation : Until the outside temperature decreases to 13°C.

When the outside temperature goes to 18°C or more.

Outdoor fan High operation :When the outside temperature decreases to 13°C or less.

Until the outside temperature goes to 18°C.

2. High pressure protection
<MUH-A18/A24WV>

During heating operation, the outdoor fan motor is controlled by the temperature of indoor coil thermistor RT12 for excess
rise protection of compressor discharge pressure.
(MUH-A18WV)Outdoor fan OFF : 52°C

Outdoor fan ON : 48°C

(MUH-A24WV)Outdoor fan OFF : 58°C

Outdoor fan ON : 55°C

High pressure protection chart
Example

Indoor coil thermistor

RT12 temperature

(MUH-A18WV) 52˚C
(MUH-A24WV) 58˚C

(MUH-A18WV) 48˚C
(MUH-A24WV) 55˚C

Outdoor fan motor
turn OFF

Outdoor fan motor
turn ON

Outdoor fan motor

ON

OFF

ON

OFF

25

NOTE : During high pressure protection and for 4 minutes and 15 seconds after high pressure protection, defrosting of

outdoor heat exchanger is not detected by the defrost thermistor RT61.

<MUH-A30WV>

During heating operation, the outdoor fan and the compressor are controlled by the temperature of indoor coil thermistor
RT12 for excess rise protection of compressor discharge pressure.

• Outdoor fan
When the temperature of indoor coil thermistor RT12 goes to 55: or more, the outdoor fan is turned OFF.
When the temperature of indoor coil thermistor RT12 becomes to 52: or less, the outdoor fan is turned ON.

• Compressor
When the temperature of indoor coil thermistor RT12 goes to 75: or more, the compressor is turned OFF.
3 minutes after the compressor is turned OFF and if the temperature of indoor coil thermistor RT12 becomes 75: or less,

the compressor is turned ON.

NOTE : During the high pressure protection and for 10 seconds after high pressure protection, defrosting of outdoor heat

exchanger is not detected by the defrost thermistor RT61.

3. Discharge temperature protection <MUH-A30WV>

Discharge temperature protection is as same as during COOL mode of “I FEEL CONTROL”.

4. Defrosting

Defrosting of outdoor heat exchanger is controlled by deicer P.C. board, with detection by the defrost thermistor RT61.

(1) Starting conditions of defrost

When all conditions of a) ~ c) are satisfied, the defrosting operation starts.

a) Under the heat operation, the compressor cumulative operation time exceeds 40 minutes without the defrosting opera-

tion working.
b) The defrost thermistor RT61 reads -3°C or less.
c) After releasing the high pressure protection 4 minutes and 15 seconds(MUH-18/24WV)/ 10 seconds(MUH-30WV) have

elapsed.

(2) Releasing conditions of defrost

When the condition d) or e) is satisfied, the defrosting operation stops.

d) The defrost thermistor RT61 reads 3°C(MUH-18/24WV)/ 13°C(MUH-30WV) or more.
e) The defrosting time exceeds 10 minutes.

(3) Defrosting time chart
Defrost thermistor RT61

13: or more

3: or more

-3: or less
Outdoor 52C

contactor(Compressor)

X62
(R.V. coil)

SR61
Outdoor fan

Defrost
counter

Indoor fan

Indoor vane

(MUH-A30WV)

(MUH-A18/A24WV)

ON
OFF

ON
OFF

ON
OFF

ON
OFF

ON
Very Low
OFF

Horizontal

Set position

30 sec.

NOTE

15 sec.

30 sec.

5 sec.

Max 10 min.

NOTE: • When the indoor coil thermistor RT12 reads above 18°C, indoor fan operates at Very Low for 30 seconds.

• When the indoor coil thermistor RT12 reads 18°C or less, the indoor fan stops.
26

5. R.V. coil control

Controlled range

Basic specification

Minimum : 54 pulse, Maximum : 500 pulse

Drive speed

30 ~ 90 pulse / second

Opening set

The setting is always in opening direction.
(To close the LEV, it is closed to the pulse smaller than the one which is
set finally. Then the LEV is opened to the final setting pulse.)

Stop of indoor unit

Opening in stop : 150 pulse ➔ LEV opening is set to becomes 500 pulse
after 3 minutes passed.

Remote controller ON

LEV positioning (LEV is closed completely at once)

Power ON (Breaker ON)

LEV is positioned. However, afterwards, LEV is not positioned at the first
remote controller ON.

Approximate for 2 minutes since
compressor has started.

Opening is set by the initial opening.
(Initial opening is set according to each operation modes and
outer temperature conditions.)

From approximate 2 minutes to
approximate 13 minutes
(for 11 minutes) since compressor
has started.

Opening is set by standard opening.
(Standard opening is set according to each operation modes and
outer temperature conditions.)

After 13 minutes passed since
compressor has started.

LEV opening is corrected to be once every 2 minutes so that discharge
temperature becomes the target discharge temperature.
(When the discharge temperature is lower than target one : LEV is corrected in
closed direction, when the discharge temperature is higher than target one :
LEV is corrected in opening direction.)

At thermostat OFF

Opening in stop : 150 pulse ➔ LEV is set to the initial opening after about
3 minutes passed.

At thermostat ON

Same as the starting of compressor operation

At remote controller OFF

Opening in stop : 150 pulse ➔ LEV is set so that the opening is opened
completely at the speed of 4 pulse every 5 seconds in opening after about
3 minutes passed.

General operation

Heating · · · · · ON
Cooling · · · · · OFF
Dry · · · · · · · · OFF

NOTE: The 4-way valve reverses for 5 seconds right before start-up of the compressor.

(COOL / DRY)

5 sec.

Compressor

ON
OFF

R.V. coil

ON
OFF

ON

Outdoor fan

OFF

9-2. LEV control <MUH-A30WV>

LEV (Expansion valve) is controlled by “Thermostat ON” commands given from the unit.

(HEAT)

5 sec.

ON
OFF

ON
OFF

ON
OFF

27

Ta (:)

more than Tb+10
Tb+5 to Tb+10
Tb+2 to Tb+5
Tb-2 to Tb+2
Tb-5 to Tb-2
Tb-10 to Tb-5
less than Tb-10

less than 2:

20
10

2
0

-2

-5

-10

NOTE : Discharge temperature : Ta, Target discharge temperature : Tb

3: or more

60
20

2
0

-2

-5

-10

RT

2: or more and less than 3:

60
20

2
0

-2

-5

-10

Tb (:)
HEAT
COOL (Normal)
COOL ( RT is less than 2:, or RT is 2:or more and less than 3:.)
COOL ( RT is 3 :or more.)

NOTE : Target discharge temperature : Tb

85
80
70
65

Operation mode

(1) LEV opening correction by discharge temperature

Rank

Ta (:)
more than Tb+10
Tb+5 to Tb+10
Tb+2 to Tb+5
Tb-2 to Tb+2
Tb-5 to Tb-2
Tb-10 to Tb-5
less than Tb-10

100 pulse or less

Cooling / Heating

5
2
1
0

-1

-2

-5

NOTE : Discharge temperature : Ta, Target discharge temperature : Tb

100 pulse or more

Cooling / Heating

20
10

2
0

-2

-5

-10

Opening immediately before having stopped last time

The LEV opening is corrected according to the temperature difference between target discharge temperature (Tb) and
actual discharge temperature (Ta).

1 The LEV correction is used properly for two kinds according to the LEV opening status at operation off.

2 When the temperature difference RT between indoor coil thermistor (main) RT12 and indoor coil thermistor (sub)

RT13 in the indoor unit is 2: or more for a fixed time at cool or dry operation, the target discharge temperature is
changed. After the temperature is changed, when temperature difference RT is 3: or more, the target temperature

is changed again. The LEV opening is controlled based on the changed target discharge temperature and the temper­ature difference RT.

The target discharge temperature (Tb) is set according to the operation mode or the unit status as follows.

NOTE : When the discharge temperature (Ta) is 50: or less on the cool operation, or is 49: or less on heat operation,

LEV opening is set in 54 pulse.
When this state continues for 20 minutes, the compressor is stopped and restarts in 3 minutes.
When the compressor is stopped, the indoor unit indicates the abnormality of refrigerant system and stops.
(OPERATION INDICATOR lamp is 10-time flashing on and off.)

28

(2) LEV time chart

E1

Jumper wire

JRF

JRG

Model Change point

Defrost interval time changes from 40 minutes to 15 minutes.
Defrost start temperature changes from -3: to 0:. (MUH-A18WV)

Defrost start temperature does not change.(-3.0:)(MUH-A24/A30WV)
Defrost finish temperature changes from 3: to 10:.(MUH-A18WV)

Defrost finish temperature changes from 3: to 15:.(MUH-A24WV)
Defrost finish temperature changes from 13: to 15:.(MUH-A30WV)

E1

E1

MUH-A18WV ­MUH-A24WV ­MUH-A30WV -

Lead wiring

Housing point

Power ON

Open

LEV opening

Close

Opening
completely

➔

Initial opening

Positioning

Remote
controller
ON

Standard opening

Operation

Thermostat
OFF

Opening in stop

Standard opening

Thermostat
ON

Initial opening

Operation

Remote
controller
OFF

Opening
completely

Opening in stop

Remote

➔

controller
ON

Positioning

Operation

Standard opening

Initial opening

NOTE : Opening increases and decreases to be in the target discharge temperature during operation.

10

MUH-A18WV - MUH-A24WV - MUH-A30WV -

SERVICE FUNCTIONS

E1E1E1

10-1. COMPULSORY DEFROSTING MODE FOR SERVICE

By short circuit of the connector JPDS and JPSG(MUH-A18WV)/ JPG1 and R871(MUH-A24/A30WV) on the outdoor deicer

P.C. board, defrosting mode can be accomplished regardless of the defrost interval restriction. (Refer to page 37 or 38.)

Defrost thermistor RT61 must read below -3°C.

10-2. CHANGE IN DEFROST SETTING

<JRF> When the JRF wire of the deicer P.C. board is cut, the defrost interval time will be changed.
<JRG> When the JRG wire of the deicer P.C. board is cut, the defrost temperature will be changed.

(Refer to page 37 or 38.)

Time

11

MUH-A18WV - MUH-A24WV - MUH-A30WV -

11-1. Cautions on troubleshooting

TROUBLESHOOTING

E1E1E1

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 main unit, and then after

confirming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug.

(2) Be sure to turn OFF the power supply before removing the front panel, the

cabinet, the top panel, and the electronic control P.C. board.

(3) When removing the electronic control P.C. board, hold the edge of the

board with care NOT to apply stress on the components.

(4) When connecting or disconnecting the connectors, hold the housing of the

connector. DO NOT pull the lead wires.

3. Troubleshooting procedure

(1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality.

To make sure, check how many times the abnormality indication is flashing on and off before starting service work.
(2) Before servicing check that the connector and terminal are connected properly.
(3) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the

components for bursting and discolouration.
(4) When troubleshooting, refer to the flow chart on page 30.

29

Start

Indoor unit
operates.
Outdoor unit
doesn't
operate.

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

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

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".

Refer to A
"Check of
outdoor unit"
on page 32 or

33.

Refer to
"Check of
remote controller
and receiver
P.C. board".

Flash on and
off at 0.5­second
intervals
Cause:
Indoor/
Outdoor unit

• Mis-wiring

Refer to D
"How to
check
mis-wiring
(When
outdoor unit
doesn't
work)" on
page 35.

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".

Refer to
"Check of
indoor fan
motor".

4-time flash
Cause:
Indoor unit

• Trouble of
indoor unit
control
system

Replace the
indoor
electronic
control
P.C. board.

1. Check indoor /
outdoor
connecting wire.

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

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

Unit doesn't
operate
normal
operation in
COOL or
HEAT mode.

Refer to B
"Check of
outdoor unit"
on page 34.

Refer to C
"Check of
R.V. coil"
on page 34
or 35.

As for indoor unit, refer to service manual OB321.

6-time flash
Cause:
Outdoor unit

• Trouble of
thermistor
in outdoor
unit

7-time flash
Cause:
Outdoor unit

• Trouble of
outdoor
control
system

Refer to F
"Check of
outdoor
thermistor"

on page 36.

Replace the
deicer
P.C. board.

10-time flash
Cause:
Outdoor unit

MUH-A30WV

• Trouble of
low discharge
temperature
protection

MUH-A30WV

Refer to E
"Check of
LEV" on
page 36.

30

11-2. Trouble criterion of main parts

Part name FigureCheck method and criterion

Measure the resistance between the terminals with a tester.
(Part temperature –10˚C ~ 40˚C)

Compressor
(MC)
INNER
PROTECTOR
160i 5: OPEN
90i10: CLOSE

Normal

MUH-A18WV

Terminal

C – R

C – S

1.59 " ~ 1.95 "

2.65 " ~ 3.24 "

MUH-A24WV

0.71 " ~ 0.87 "

1.45 " ~ 1.77 "

MUH-A30WV

0.56 " ~ 0.71 "

1.43 " ~ 1.76 "

Abnormal

Open or

short-circuit

R.V. coil(21S4)

LEV(Expansion valve)

MUH-A30WV

Measure the resistance between the terminals with a tester.
(Part temperature –10˚C ~ 40˚C)

Normal

2.673 k" ~ 3.268 k"

Abnormal

Open or short-circuit

Color of lead wire

WHT – RED
RED – ORN

YLW – BRN
BRN – BLU

Abnormal

Open or

short-circuit

Normal

30.3 " ~ 37.0 "

Measure the resistance with a tester.
(Part temperature : –10˚C ~ 40˚C)

Measure the resistance with a tester.
(Part temperature –10˚C ~ 40˚C)

Discharge temperature
thermistor(RT62)

MUH-A30WV

Ambient temperature
thermistor(RT63)

MUH-A30WV

Measure the resistance with a tester.
Before measurement, hold the thermistor with your hands to warm it up.
(Part temperature 0˚C ~ 40˚C)

Normal

120 k" ~ 800k"

Abnormal

Open or short-circuit

Normal

5 k" ~ 60 k"

Abnormal

Open or short-circuit

Measure the resistance with a tester.
(Part temperature –10˚C ~ 40˚C)

Normal

5 k" ~ 60 k"

Abnormal

Open or short-circuit

Defrost thermistor
(RT61)

w Reference value

MUH-A18WV MUH-A24WV MUH-A30WV

Measure the resistance between the terminals with a tester.
(Part temperature –10˚C ~ 40˚C)

Color of

lead wire
WHT – BLK
BLK – RED
BLK – YLW

YLW – RED

Open or

short-circuit

102 " ~ 126 "

97 " ~ 120 "

–
–

55 " ~ 68 "

–
26 " ~ 33 "
55 " ~ 68 "

55.4 " ~ 67.7 "
–

49.3 " ~ 60.3 "

22.9 " ~ 28.0 "

Normal

Abnormal

Outdoor fan motor(MF)

MUH-A18/A24WV

INNER
PROTECTOR
145i 8: OPEN
( 88i15: CLOSE

w

)

MUH-A30WV

INNER
PROTECTOR
135i 5: OPEN
( 83i15: CLOSE

w

)

REDORN WHT

YLW

BLK

MAIN

AUX.1AUX.2

C

P

P

~

BLK

R

MAIN

AUX

RED

S

C

WHT

MAIN

AUX

BLK

MUH-A18WV

MUH-A24WV

MUH-A30WV

RED

WHTORN

P

P

C

RED

ORN WHT

YLW

BLK

MAIN

AUX.1 AUX.2

LEV

WHT

6

RED1
ORN4

YLW5

BRN2

BLU3

:INNER PROTECTOR

P

MUH-A18WV - MUH-A24WV - MUH-A30WV -

E1E1E1

31

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

Yes

Compressor
doesn't operate.

Yes

Yes

Is there 230V AC between 3 on the
compressor contactor (52C) and N
on the outdoor terminal block (TB1)?

Operate the unit in COOL or HEAT mode by pressing the EMERGENCY OPERATION switch.
3-minute time delay works.
Test run operation operates for 30 minutes.

Outdoor fan motor
doesn't operate.

No

Rectify the indoor and
outdoor connecting wire.

Rectify the connecting wire.

Check the compressor and compressor
capacitor. Refer to page 31.

Yes

Is there 230V AC between 4 on the
compressor contactor (52C) and
TAB20 on the deicer P.C. board?

Is there 230V AC between L–N on
the outdoor terminal block (TB1)?

Replace the
deicer P.C. board.

Replace the
deicer P.C.
board.

No

No

Yes

Yes

No

Check the outdoor fan motor.
Refer to page 31.

Is there 230V AC between 4 on the
compressor contactor (52C) and
TAB 20 on the deicer P.C. board?

Replace the
deicer P.C. board.

No

Yes

Rectify the indoor and
outdoor connecting wire.

Rectify the connecting wire.

Is there 230V AC between L–N on
the outdoor terminal block (TB1)?

No

No

+

–

Is there 5V DC between J205 –J101 on
the deicer P.C. board?

+

–

Is there 5V DC between J205 –J101 on
the deicer P.C. board?

w Refer to page 37.

w

w

w

w

AA

Check of outdoor unit

MUH-A18WV

32

Is there 230V AC to
between

L-N on the

outdoor terminal block

?

No

Check the outdoor power supply
and connection of wiring.

Yes

Compressor
does not operate.

Yes

3minutes after the power
supply turns ON, is there
230V AC between A1-A2 on
the compressor contactor
(52C)?

Operate the unit in
COOL or HEAT mode by
pressing the EMERGENCY
OPERATION switch.

Outdoor fan motor
does not operate.

No

Rectify the connecting
wire.

Rectify the connecting
wire.

Rectify the connecting
wire.

Check the compressor.
Refer to page 31.

Replace the compressor
contactor(52C).

Turn ON the power supply.

Yes

Is there 230V AC between
2/T1 on the compressor
contactor(52C) and N on the
outdoor terminal block?

Yes

Replace the
deicer P.C. board.

Replace the
deicer P.C. board.

No

Yes

No

Is there 230V AC between
1/L1 on the compressor
contactor(52C) and N on the
outdoor terminal block?

No

No

Yes

Yes

Yes

Is there 230V AC between
CN711 2-3 (MUH-A24WV)/
CN711 1-3 or 2-3
(MUH-A30WV) on the
deicer P.C. board? w

Operate the unit in
COOL or HEAT mode by
pressing the EMERGENCY
OPERATION switch.

No

Check the outdoor fan
motor. Refer to page 31.

Yes

Is there 230V AC CN730
1-3 on the deicer P.C.
board? w

Replace the
deicer P.C. board.

Replace the
deicer P.C. board.

No

No

Is there 5V DC between
J101 - J401 on the deicer
P.C. board? w

Is there 230V AC between
CN730 1-3 on the deicer
P.C. board? w

+

Is there 5V DC between
J101 - J401 on the deicer
P.C. board? w

+

w Refer to page 38.

MUH-A24WV
MUH-A30WV

33

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

BB

Check of outdoor unit

MUH-A18WV

Turn OFF the power supply.
After 1 minute, turn ON
power supply again.

Is there 230V AC between 3 on the

Does compressor stop?

Yes

OK

No

compressor contactor (52C) and N on the
outdoor terminal block (TB1)?

Replace the
deicer P.C. board.

Yes

No

Rectify the connecting wire.

Does outdoor fan motor stop?

Yes

OK

No

MUH-A24WV
MUH-A30WV

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

Replace the
deicer P.C. board.

Is there 230V AC between

No

A1-A2 on the compressor
contactor (52C)?

Replace the
deicer P.C. board.

No

Replace the
deicer P.C. board.

Yes

Is there 230V AC between

No

2/T1 on the compressor
contactor (52C) and N on the

outdoor terminal block?

Replace the
compressor contactor(52C).

Yes

No

Rectify the connecting
wire.

Unit operates COOL mode even if it is set to HEAT mode.

Check of R.V. coil

C

w First, measure the resistance of R.V. coil to confirm it is disconnected or is not short-circuit.

Disconnect the TAB52 on the deicer P.C. board.
Turn ON the power supply and operate
the indoor unit in HEAT mode by pressing
the EMERGENCY OPERATION switch.

After 3 minutes, is there
230V AC between CN721
1-3 on the deicer P.C. board?

Yes

Replace the R.V. coil.

No

Replace the
deicer P.C. board.

34

Unit operates HEAT mode even if it is set to COOL mode.

After 3 minutes, is there
230V AC between CN721
1-3 on the deicer P.C. board?

Replace the
deicer P.C. board.

Yes

No

Replace the R.V. coil.

Disconnect the TAB52 on the deicer P.C. board.
Turn ON the power supply and operate
the indoor unit in COOL mode by pressing
the EMERGENCY OPERATION switch.

Check of R.V. coil

C

w First, measure the resistance of R.V. coil to confirm it is disconnected or is not short-circuit.

When OPERATION INDICATOR lamp flashes ON and OFF in every 0.5-second.
Outdoor unit doesn’t operate.

How to check mis-wiring

D

Start

• Turn ON the power supply. (indoor/ outdoor unit)

• Press once EMERGENCY OPERATION switch.

w Short circuit of JPG and JPS on the indoor electronic control
P.C. board enables self -check to be displayed in 3 seconds.

After 3 minutes, mis-wiring is indicated
(0.5-second ON, 0.5-second OFF)
on OPERATION INDICATOR
lamp on indoor unit.w

Make them sure.

1. Turn OFF the power supply (indoor/ outdoor unit) and disconnect indoor/outdoor
connecting wire on indoor side.

2. Short-circuit terminal block N-3 by lead wire.

Turn ON the power supply (indoor unit) and press once EMERGENCY OPERATION switch.

3.

Yes

Is this mis-wiring, poor contact,
or wire disconnection?

Is there 20V DC between both ends of
R132 on the indoor electronic control P.C.
board ?
( By tester, the stylus is between 0 ~ 20V. )

• Turn OFF the power supply. (indoor unit)

• Connect ON indoor/outdoor connecting
wire.

Turn ON the power supply. (outdoor unit)

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

Is there 5V DC between J205 + -J101 ­(MUH-A18WV)/J101 + -J401 - (MUH-A24/A30
WV) on the deicer P.C. board?(Refer to page
37 or 38.)

During EMERGENCY OPERATION, is there
10V DC between both ends of R601on the
deicer P.C. board? (Refer to page 37or 38.)
(By tester, the stylus is between 5 ~10V)

Replace the deicer P.C. board.

No

Yes

Yes

Yes

Yes

35

No

Replace the indoor electronic
control P.C. board.

No

Check the outdoor power supply
and connection of wiring.

No

Replace the deicer P.C. board.

Make the wiring between CN730

No

on the deicer P.C. board and
outdoor terminal block correct.
(Refer to page 37 or 38.)

As for indoor unit,
refer to service
manual OB321.

Replace the
LEV coil.

With remote controller set toward the indoor unit, press
OPERATE/ STOP(ON/ OFF) button and confirm one
beep tone.

LEV operates in full-opening
direction.

Is LEV coil properly fixed to
the body?

Ok

Do you hear LEV "click,
click·······"?
Do you touch LEV and feel
it vibrate?

Does the resistance of LEV coil
have the characterictics?

No

Yes

Yes

Yes

No

LEV (CN724)

WHT–RED

RED–ORN
YLW–BRN
BRN–BLU

Resistance

30.3 " ~ 37.0 "

Characteristics of LEV coil

No

Properly fix LEV coil to
the body.

Replace the
deicer P.C. board.

NOTE : After check of LEV, do the undermentioned operations.

1. Turn OFF the power supply of the unit and turn ON again.

2. Press the RESET button on the remote controller.

1 During pressing OPERATION SELECT button

on remote controller, press RESET button.

2 First, release RESET button.

(Confirm all displays of remote controller.)

3 Then release OPERATION SELECT button.

1 During pressing OPERATION SELECT

button on remote controller, press

RESET button.

2 First, release RESET button.

(Confirm all displays of remote controller.)
3 Then release OPERATION SELECT button.

AMPM

CLOCK

˚C

AMPM

When OPERATION INDICATOR lamp flashes 10-time.
Heating/ Cooling doesn't operate.

Check of LEV (Expansion valve)

E

MUH-A30WV

When OPERATION INDICATOR lamp flashes 6-time.
Thermistors in the outdoor unit are abnormal.

F

Check of outdoor thermistor

w Disconnect the connectors CN661 and/ or CN662 from the deicer P.C. board.

(Check the characteristics of each thermistor.)

Defrost thermistor(RT61)

Measure
resistance
between CN 661
1 and 2.

<MUH-A30WV>

Discharge temperature
thermistor(RT62)

Turn OFF the
power supply.

Measure
resistance
between CN 662
1 and 2.

<MUH-A30WV>

Ambient temperature
thermistor(RT63)

Measure
resistance
between CN 662
3 and 4.

Does the resistancs
of thermistor have
the characteristics
on page 37 or 38?

No

Replace the
thermistor.

36

Yes

Connect CN661 and
CN662.
Turn ON the power
supply and press
the EMERGENCY
OPERATION
switch.

W It is thought defective contact of the connector.

Replace the deicer P.C.

board.

No

Does the unit operate
10 minutes or more?

Yes

Ok W.

MUH-A18WV -

E1

Outdoor deicer P.C. board

CN711
Outdoor fan motor

230V AC

}

CN721
R.V. coil

230V AC

}

5V DC
J205
J101

+

--

(Refer to
page 32
or 35.)

Power supply input

230V AC

}

NR61
Varistor

F61
Fuse

2A/250V

R601

+

5~10V DC

}

--

Defrost interval time
short pin
(JPDS, JPSG)
(Refer to page 29.)

Jumper wire for

}

change in defrost
setting
(JRF,JRG)

}

CN661 1-2
Defrost thermistor RT61 (Refer to page 36.)

(Refer to page 29.)

12V DC
J204

+

J101

--

37

MUH-A24WV -

Temperature(:)

Discharge temperature thermistor(RT62)



Resistance(k")

0 102030405060708090100110120

0

100

200

300

400

500

600

700

800

900

Defrost thermistor (RT61)

Ambient temperature thermistor (RT63)

-20 -10 0 10 20 30 40

0

10

20

30

40

50

60

70

80

90

100

Temperature(:)

Resistance(k")

MUH-A30WV -

E1

E1

Outdoor deicer P.C. board

CN661 1-2
Defrost ther­mistor (RT61)
(Refer to
page 36.)

Defrost

interval
time short
pin(JPG1,
R871)

(Refer to

page 29.)

(Refer to
page 33

or 35.)

+

J101

}

5V

DC

J401

<MUH-A30WV>
CN662 1-2

Discharge temper­ature thermistor
(RT62)
(Refer to page 36.)

Jumper wire for
change in defrost
setting (JRF, JRG)
(Refer to page 29.)

CN662 3-4
<MUH-A30WV>
Ambient temperature
thermistor (RT63)
(Refer to page 36.)

38

<MUH-A30WV>
LEV
connector
(CN724)

R601 10V DC
(Refer to page 35.)

Fan motor
connector
(CN711)

+

}

Varistor
(NR62)

R.V. coil

}

(CN721)

+

12V DC

}

Fuse

3.15A / 250V
Varistor

(NR61)

CN7301-3

}

230V AC

(Refer to
page 33 or

35.)

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. MUH-A18WV -

E1

OUTDOOR UNIT

OPERATING PROCEDURE

1. Removing the cabinet

(1) Remove the screws of the cabinet.
(2) Hold the down of the cabinet on the both side and remove

the cabinet.

Photo 2

Screws of

the cabinet

PHOTOS

Photo 1

Screws
of the
cabinet

Service
panel

2. Removing the deicer P.C. board

(1) Remove the service panel and the cabinet.
(2) Disconnect all the connectors and the terminals on the

deicer P.C. board.

(3) Remove the deicer P.C. board.

Photo 3

Screw of the
relay panel

Deicer
P.C. board

39

Relay panel

Terminal blocks

Screw of the
relay panel

OPERATING PROCEDURE

3. Removing the propeller and the outdoor fan motor

(1) Remove the cabinet. (Refer to 1.)
(2) Remove the propeller nut and the propeller.

NOTE : Loose the propeller in the rotating direction for

removal.

When attaching the propeller, align the mark on the
propeller and the motor shaft cut section.
Set the propeller fan in position by using the cut on the
shaft and the mark on the propeller.

(3) Remove the clamp of outdoor fan motor lead wire and

disconnect the outdoor fan motor connector.
(4) Remove the screws fixing the outdoor fan motor.
(5) Remove the outdoor fan motor.

Photo 4

Propeller

PHOTOS

Set screws of the
outdoor fan motor

Lead clamps

4. Removing the compressor

(1) Remove the cabinet. (Refer to 1.)
(2) Remove the relay panel.
(3) Remove the soundproof felt.
(4) Remove the terminal cover on the compressor.
(5) Disconnect lead wires from the compressor.
(6) Recover gas from the refrigerant circuit.
(7) Disconnect the welded part of the discharge pipe.
(8) Disconnect the welded part of the suction pipe.
(9) Remove nuts fixing the compressor.

)

(

Remove the compressor.

10

NOTE

● Before using a burner, reclaim gas from the pipes until the
pressure gauge shows 0 kg/cm

● Use the burner under the condition that gas can be recovered
even when the inner pressure rises by heat.

2

(0 MPa).

Propeller
nut

Photo 5

Compressor

Set screws of the
outdoor fan motor

Discharge
pipe

Terminal cover

Outdoor
fan motor

Suction
pipe

40

Compressor set nuts

12-2. MUH-A24WV - MUH-A30WV -

OUTDOOR UNIT

E1E1

NOTE : These photos are MUH-A30WV.

MUH-A24WV is almost the same as MUH-A30WV.

OPERATING PROCEDURE

1.Removing the cabinet

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

(10)

Remove the back panel.

Photo 3

Screw of the motor support

Photo 1

Screws
of the
cabinet

Photo 2

PHOTOS

Screw of the top panel

Screws of the cabinet

Screw of the service panel

Screws
of the
back
panel

Set screws of the back panel

2. Removing the deicer P.C. board

(1) Remove the service panel and the cabinet.
(2) Disconnect all the connectors and the terminals on the

deicer P.C. board.

(3) Remove the deicer P.C. board.

Screws
of the
front
panel

Photo 4

Deicer P.C. board

Screws
of the
top
panel

Screw
of the
valve
cover

Terminal

blocks

41

Screws
of the
relay
panel

Screws of the
relay panel

OPERATING PROCEDURE

PHOTOS

3. Removing the propeller and the outdoor fan motor

(1) Remove the cabinet. (Refer to 1.)
(2) Remove the propeller nut and the propeller.

NOTE : Loose the propeller in the rotating direction for

removal.

When attaching the propeller, align the mark on the
propeller and the motor shaft cut section.
Set the propeller fan in position by using the cut on the
shaft and the mark on the propeller.

(3) Remove the clamp of outdoor fan motor lead wire and

disconnect the outdoor fan motor connector.
(4) Remove the screws fixing the outdoor fan motor.
(5) Remove the outdoor fan motor.

Photo 5

Set screws of the
outdoor fan motor

Propeller

nut

Propeller

Set screws of the outdoor fan motor

4. Removing the compressor

(1) Remove the cabinet. (Refer to 1.)
(2) Remove the relay panel.
(3) Remove the soundproof felt.
(4) Remove the terminal cover on the compressor.
(5) Disconnect lead wires from the compressor.
(6) Recover gas from the refrigerant circuit.
(7) Disconnect the welded part of the discharge pipe.
(8) Disconnect the welded part of the suction pipe.
(9) Remove nuts fixing the compressor.

)

(

Remove the compressor.

10

NOTE

● Before using a burner, reclaim gas from the pipes until the
pressure gauge shows 0 kg/cm

● Use the burner under the condition that gas can be recovered
even when the inner pressure rises by heat.

2

(0 MPa).

Photo 6

Discharge pipe

Suction pipe

Terminal cover

Compressor set nuts

42

13

Symbol

in Wiring

Diagram

Q'ty/unit

MUH-A18WV-

Remarks

Part No. Part Name

E1

E02 817 233
E02 817 232
E02 817 521
E02 643 630
E02 141 501
E02 139 515
E02 075 506
E02 817 900
E02 817 290
E02 817 661
E02 820 662
E02 817 245
E02 679 961
E02 817 353
E02 144 301
E02 466 383
E02 820 451
E02 817 374
E02 821 374
E02 820 310
E02 817 009
E02 139 936
E02 340 936
E02 414 936
E02 820 936
E02 095 382
E02 821 490
E02 154 642
E02 820 385

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21

22

23
24
25
26

BACK PANEL
CABINET
GRILLE
OUTDOOR HEAT EXCHANGER
PROPELLER
MOTOR SUPPORT
COMPRESSOR RUBBER SET
COMPRESSOR
BASE
STOP VALVE(GAS)
STOP VALVE(LIQUID)
SERVICE PANEL
4-WAY VALVE
COMPRESSOR CAPACITOR
OUTDOOR FAN MOTOR
SURGE ABSORBER
DEICER P.C. BOARD
TERMINAL BLOCK
TERMINAL BLOCK
DEFROST THERMISTOR
HANDLE
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
CAPILLARY TUBE
FUSE
R.V. COIL
CHECK VALVE
VARISTOR

MC

C1

MF

DSAR

TB1
TB2

RT61

F61

21S4

NR61

3RUBBERS/SET
RN196VHSHT

{12.7
{ 6.35

40+/440V AC
RA6V50 -

3P
2P

{3.0✕{1.6✕750
{3.0✕{1.6✕450
{3.0✕{1.6✕300
{2.5✕{0.6✕1000

250V / 2A

NO.

1
1
1
1
1
1
3
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1

PARTS LIST

MUH-A18WV -

E1

13-1. OUTDOOR UNIT STRUCTURAL PARTS,

ELECTRICAL PARTS AND FUNCTIONAL PARTS

21

1

2

DEFROST
THERMISTOR

20

15

14

19

18

17

16

13

12

11

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

4

653

43

7

10

8

9

MUH-A24WV -

E1

13-2. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

24252627

1

2

3
4

5

6

7

8

23

22

21

20
19

18

17

9

10

11

12

16

1513 14

44

MUH-A24WV -

E1

13-2. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

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

Q'ty/unit

MUH-A24WV -

1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

NO.

Part No.

E02 819 297

1

E02 821 630

2

E02 821 301

3

E02 214 501

4

E02 821 290

5

E02 819 232

6

E02 819 009

7

E02 819 521

8

E02 679 961

9

E02 821 490

10

E02 821 310

11

E02 527 506

12

E02 821 900

13

E02 819 661

14

E02 821 662

15

E02 819 650

16

E02 819 245

17

E02 128 383

18

E02 821 374

19

E02 817 374

20

E02 138 351

21

E02 821 451

22

E07 012 340

23

E02 818 353

24

E02 819 233

25

E02 817 009

26

E02 726 515

27

E02 127 382

28

E02 336 385

29

E02 154 642

30

E02 625 936

31

E02 010 936

Part Name

TOP PANEL
OUTDOOR HEAT EXCHANGER
OUTDOOR FAN MOTOR
PROPELLER
BASE
CABINET
HANDLE
FAN GUARD
4-WAY VALVE
R.V. COIL
DEFROST THERMISTOR
COMPRESSOR RUBBER SET
COMPRESSOR
STOP VALVE(GAS)
STOP VALVE(LIQUID)
VALVE COVER
SERVICE PANEL
SURGE ABSORBER
TERMINAL BLOCK
TERMINAL BLOCK
OUTDOOR FAN CAPACITOR
DEICER P.C. BOARD
COMPRESSOR CONTACTOR
COMPRESSOR CAPACITOR
BACK PANEL(OUT)
HANDLE
MOTOR SUPPORT
FUSE
VARISTOR
CHECK VALVE
CAPILLARY TUBE
CAPILLARY TUBE

Symbol

in Wiring

Diagram

MF

21S4

RT61

MC

DSAR

TB2
TB1

C2

52C

C1

F61

NR61

E1

Remarks

RA6V85-

4RUBBERS/SET
NN29VBAHT

{15.88
{6.35

2P
3P

3.0+/440V AC

55+/440V AC

250V/3.15A

{3.0x{2.0x550
{3.0x{2.0x650

45

MUH-A30WV -

E1

13-3. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

25262728

1

2
3
4
5

6

7

8
9

24

23

22

21
20

19

2

18

10

11

12

13

17

1614 15

46

MUH-A30WV -

E1

13-3. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

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

Q'ty/unit

MUH-A30WV -

1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1

NO.

Part No.

E02 819 297

1

E02 819 309

2

E02 822 630

3

E02 819 301

4

E02 214 501

5

E02 819 290

6

E02 819 232

7

E02 819 009

8

E02 819 521

9

E02 679 961

10

E02 821 490

11

E02 821 310

12

E02 527 506

13

E02 819 900

14

E02 819 661

15

E02 822 662

16

E02 819 650

17

E02 819 245

18

E02 128 383

19

E02 821 374

20

E02 817 374

21

E02 064 351

22

E02 822 451

23

E02 819 340

24

E02 819 353

25

E02 819 233

26

E02 817 009

27

E02 726 515

28

E02 819 640

29

E02 819 493

30

E02 127 382

31

E02 336 385

32

E02 214 386

33

E02 822 936

34

Part Name

TOP PANEL
THERMISTOR
OUTDOOR HEAT EXCHANGER
OUTDOOR FAN MOTOR
PROPELLER
BASE
CABINET
HANDLE
FAN GUARD
4-WAY VALVE
R.V. COIL
DEFROST THERMISTOR
COMPRESSOR RUBBER SET
COMPRESSOR
STOP VALVE(GAS)
STOP VALVE(LIQUID)
VALVE COVER
SERVICE PANEL
SURGE ABSORBER
TERMINAL BLOCK
TERMINAL BLOCK
OUTDOOR FAN CAPACITOR
DEICER P.C. BOARD
COMPRESSOR CONTACTOR
COMPRESSOR CAPACITOR
BACK PANEL(OUT)
HANDLE
MOTOR SUPPORT
EXPANSION VALVE
EXPANSION VALVE COIL
FUSE
VARISTOR
CZ SURGE ABSORBER
CAPILLARY TUBE(TAPER PIPE)

Symbol

in Wiring

Diagram

RT62, RT63

MF

21S4

RT61

MC

DSAR

TB2
TB1

C2

52C

C1

LEV
F61

NR61

CZ

E1

Remarks

DISCHARGE, AMBIENT

RA6V75-

4RUBBERS/SET
NN37VAAHT

{15.88
{9.52

2P
3P

4.0+/440V AC

60+/440V AC

250V/3.15A

{3.6x{2.4x50

47

MUH-A18WV ­MUH-A24WV ­MUH-A30WV -

E1

E1

E1

13-4. ACCESSORY

1

2

NO.

Part No.

1

E02 817 704
E02 444 705

2

E02 444 706

Part Name

DRAIN SOCKET
DRAIN CAP
DRAIN CAP

Symbol

in Wiring

Diagram

Q'ty/unit

MUH-A18WV-E1MUH-A24WV-E1MUH-A30WV-

E1

1
2

1
2

1
2

1

Remarks

[33
[16

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

CC

Copyright 2003 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD
Distributed in Nov. 2003. No.OB322 6
Made in Japan

New publication, effective Nov. 2003
Specifications subject to change without notice.