Mitsubishi MSH-C18TV-E1, MSH-C24TV-E1, MUH-C18TV-E1, MUH-C24TV-E1 Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

HFC

utilized

R407C

SERVICE MANUAL

Wireless type Model

No. OB279

MSH-C18TV MSH-C24TV -

E1 E1

(WH)

CONTENTS

10. SERVICE FUNCTIONS·····································33

11. TROUBLESHOOTING ······································35

12. DISASSEMBLY INSTRUCTIONS·····················47

13. PARTS LIST······················································53

14. OPTIONAL PARTS···········································58

· MUH-C18TV -

· MUH-C24TV -

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

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

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

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

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

6. WIRING DIAGRAM···········································11

7. REFRIGERANT SYSTEM DIAGRAM··············13

8. PERFORMANCE CURVES······························15

9. MICROPROCESSOR CONTROL ····················23

E1E1

1

TECHNICAL CHANGES

MSH-C18SV - ➔MSH-C18TV -

1. Rated voltage has changed to 230V.

2. Remote controller has changed.

• SLEEP MODE function has been removed.

• ECONO COOL operation has added.

• SWING button has been removed, but SWING MODE function has available by VANE CONTROLbutton.

3. Indoor electronic control P.C. board has changed.

MSH-C24TV -

New model

E1

MUH-C18SV - ➔MUH-C18TV -

1. Path of heat exchanger has changed.

2. Temperature of defrosting control has changed. (-3: ➜ -2.7:)

3. Capillary tube has changed. [{3.0 o {1.6 o 750 (2pcs) ➜ {3.0 o {1.4 o 600 (2pcs), {3.0 o {2.0 o 500 ➜ {3.0 o {2.0 o 850, {3.0 o {2.0 o 350 has removed.]

4. Refrigerant filling capacity has changed. (1.70kg ➜ 1.60kg)

MUH-C24TV -

New model

E1

E1E1

2

INFORMATION FOR THE AIR CONDITIONER WITH R-407C REFRIGERANT

New Specification Previous Specification

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

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

Compressor

Suction muffler

Returning oil hole

Lubricant

Refrigerant

Compressor

Suction muffler

Returning oil hole

Lubricant and 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])

R407C R22

Conversion chart of refrigerant temperature and pressure

Saturated liquid pressure

(:)

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

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

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

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

prevent composition change.

4 Be especially careful when managing the tools.

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

Refrigerant Composition (Ratio)

R32: R125: R134a (23%:25%:52%) Refrigerant handling Chlorine Safety group (ASHRAE) Molecular weight Boiling point (:) Steam pressure [25:](Mpa [Gauge]) Saturated steam density [25:](Kg/K)

Refrigerant

Combustibility ODP w1 GWP w2 Refrigerant charge method Additional charge on leakage Kind Color Smell

Lubricant

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

2

New refrigerant

R407C

Non-azeotropic refrigerant

Not included

A1/A1

86.2

-43.6

0.9177

42.5

Non combustible

0

1530

From liquid phase in cylinder

Impossible

Incompatible oil

Non Non

Previous refrigerant

R22

HCFC22 (100%)

Single refrigerant

Included

A1

86.5

-40.8

0.94

44.4

Non combustible

0.055 1700

Gas phase

Possible

Compatible oil

Light yellow

Non

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/

3

ff

[Gauge])

1.Tools dedicated for the air conditioner with R407C refrigerant

R407C tools Can R22 tools be used?

Gas leak detector

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

Hose material have been changed to improve the pressure resistance.

Dedicated for HFC refrigerant.

Description

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

No

Yes Yes

New

Gauge manifold

Charge hose

Torque wrench Flare tool

Vacuum pump adapter

Electronic scale for refrigerant charging

Use the electronic control scale for measuring the R407C.

Electronic scale for refrigerant charging

Refrigerant gas cylinder operating valve

Refrigerant gas cylinder for R407C with siphon

Refrigerant (liquid)

Gage manifold

Outdoor unit

Indoor unit

Union

Liquid pipe Gas pipe

Service port

Stop valve

Charge hose

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

2.Refrigerant piping

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

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

3.Refrigerant oil

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

4.Air purge

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

5.Additional charge

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

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

R407C occurs the change of composition.

2. Additional refrigerant charge has been changed by change of refrigerant.(R22 ➔ R407C) R22 : <MUH-18 type> 50g/m ➔ R407C : <MUH-C18TV> 35g/m

: <MUH-24 type> 65g/m ➔ R407C : <MUH-C24TV> 45g/m

4

2

1 2 3 4 5 6 7

Installation plate Installation plate fixing screw 4 o 25 mm Remote controller mouting hardware Fixing screw for 3 o 3.5 o 1.6 mm (Black) Battery (AAA) for remote controller Wireless remote controller Felt tape (Used for left or left-rear piping)

1 6 1 2 2 1 1

MSH-C18TVMSH-C24TV-

E1 E1

8

9

Drain socket Drain cap {33 Drain cap {16

1 6

—

1 2 1

MUH-C18TV-

E1

MUH-C24TV-

E1

PART NAMES AND FUNCTIONS

INDOOR UNIT

MSH-C18TV MSH-C24TV -

(When the grille is open)

E1

Front panel

OUTDOOR UNIT

MUH-C18TV -

ACCESSORIES

Indoor unit

E1

Air inlet

(back and side)

Piping

Drainage hose

Air outlet

Drain outlet

MUH-C24TV -

Air inlet

E1

Air outlet

Outdoor unit

5

REMOTE CONTROLLER

ON/OFF

TOO

COOL

PM

AM

TOO

WARM

ON/OFF

FAN

TOO

WARM

TOO

COOL

VANE

MODE

ECONO COOL

STOP

START

HR.

MIN.

I FEEL

COOL

HEAT

DRY

PM

CLOCK

AM

RESET CLOCK

Open the front lid.

Signal transmitting section

Operation display section

OPERATE /STOP

(ON /OFF)button

TEMPERATURE buttons

OPERATION SELECT button

FAN SPEED CONTROL button

OFF-TIMER button

HR. button

MIN. button

(TIME SET button)

ON-TIMER button

RESET button

ECONO COOL button

VANE CONTROL button

CLOCK SET button

MSH-C18TV MSH-C24TV -

E1

6

3

Indoor model

Function

Power supply

Capacity Dehumidification Air flow(High) Power outlet Running current Power input Auxiliary heater Power factor Starting current Fan motor current

Model Winding resistance(at20:) Dimensions WOHOD Weight Air direction Sound level (High) Fan speed (High) Fan speed regulator Thermistor RT11(at25:) Thermistor RT12(at25:) Outdoor model Air flow Compressor motor current Fan motor current Model Output Winding resistance(at20:) Model Winding resistance(at20:) Dimensions WOHOD Weight Sound level Fan speed (High) Fan speed regulator Refrigerant filling capacity(R407C) Refrigerating oil (Model) Thermistor

RT61(at0:)

Thermistor

RT63(at0:)

kW

r/h

K /h

A A

W

A(kW)

%

A A

"

mm

kg

dB

rpm

k" k"

K /h

A A

W

"

mm

kg

dB

rpm

kg

cc k" k"

MSH-C18TV -

E1

Single phase

230V, 50Hz

756

15

— 98 55

0.25

RA4V27-EF WHT-BLK 183.8 BLK-RED 250.5 1,015O320O190

14

5

42

1,180

3 10 10

MUH-C18TV -

E1

2,196

0.39

PE-36VPEHT

1,600 C-R 1.06 C-S 2.03

RA6V50-OG

WHT-BLK 116.4

BLK-RED 111.0

850o605o290

54 52

828

1

1.60

1,100 (NEO22)

33.18 —

Cooling

5.2

2.4

9.4

2,110

2.46

8.76

Heating

6.0 —

9.7

2,180

2.75

9.06

MSH-C24TV -

E1

Single phase

230V, 50Hz

816

25

—

83

0.29

RA4V27-EE WHT-BLK 183.3 BLK-RED 250.5 1,015O320O190

14

5

45

1,260

3 10 10

MUH-C24TV -

E1

2,700

0.58

NE-47VMHHT

2,200 C-R 0.67 C-S 2.02

RA6V85-AA

WHT-BLK 62.7 BLK-YLW 30.2

YLW-RED 62.9

870o850o295

71 53

735

2

2.00

1,400 (NEO22)

33.18

Cooling

6.3

3.0

12.8

2,850

97

2.21

11.93

Heating

7.5 —

13.7

3,020

96

2.48

12.87

Electrical

data

Fan

motor

Special

remarks

Compressor

Electrical

data

Fan

motor

Special

remarks

Capacity

Coefficient of performance(C.O.P)

Capacity

SPECIFICATION

NOTE:Test conditions are based on JIS C 9612.

Cooling : Indoor Dry-bulb temperature 27°C / Wet-bulb temperature 19°C

Outdoor Dry-bulb temperature 35°C / Wet-bulb temperature (24°C)

Heating : Indoor Dry-bulb temperature 20°C / Wet-bulb temperature

Outdoor Dry-bulb temperature 7°C / Wet-bulb temperature 6°C

7

4

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

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

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

42

SPL(dB(A)) LINE

High

NOTCH

Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:

90

80

70

60

50

40

30

20

10

63 125 250 500 1000 2000 4000 8000

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

BAND CENTER FREQUENCIES, Hz

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

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

45

SPL(dB(A)) LINE

High

NOTCH

Heating : Dry-bulb temperature 20: Wet-bulb temperature 15.5:

NOISE CRITERIA CURVES

MSH-C18TV-

E1

MSH-C24TV-

E1

MUH-C18TV-

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

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

90

80

E1

NOTCH

High

SPL(dB(A)) LINE

52

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

MUH-C24TV-

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

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

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

8

E1

NOTCH

SPL(dB(A)) LINE

High

90

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

53

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

5

OUTLINES AND DIMENSIONS

MSH-C18TV MSH-C24TV -

INDOOR UNIT

Unit: mm

E1

995

60

40

4holes 11✕20

150 648 217

Indoor unit

20

320

Wireless remote controller

MUH-C18TV -

OUTDOOR UNIT

Drainage hole [16.2

35

90

248

Air in

58

162

E1

355

350

1015

Air in

20

19

19077550

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

290

Installation plate

Air in

Air out

310

345

450 450

5190

100mm or more

352438

Installation plate

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

{

Insulation [50 O.D

[28 I.D

Drain hose [16 Insulation [28

100mm or more

500mm or more

254

3 297

Wall hole [75

100mm or more

350mm or more

605

Drainage 3holes [33

292

20

Air out

183

500 850

50

74

157

30

100

Service panel

Liquid refrigerant pipe joint

Refregerant pipe (flared) [6.35

35-

30-

Gas refregerant pipe joint

161

9

Refregerant pipe (flared) [15.88

100 10

1000For 10 units or less

200

Outdoor Unit-Necessary surrounding clearance (Concentrated installation)

The upper side must be open.

Outdoor Unit-Necessary surrounding clearance

200

10

Note:Allow adequate upper clearance

150

500

Service space

Front opening

R20

25 max.

Standard bolt length

65

Front right piping holesdetail figures

80

17

12

R6

23

33

Side air intake

724295

Outlet guide installation hole

302

Air intake

Air outlet

870

185 185

500

330

362

1715

39.5 27.5

Terminal block for indoor and outdoor unit connection

Handle for moving

179 524

441

445

450

468

553

850

40 60524

Service panel

Refrigerant-pipe flared connection [15.88

Refrigerant-pipe flared connection [9.52

Knock out hole for front piping

(refrigerant,drainage and wiring)

42

45

104

33

Bottom piping hole

2-U-shaped notched holes

Drainage hole [33

2-12o23 Oval holes (standard bolt M10)

Handle for moving

A

Handle for moving

138

95

Rear piping hole

Rear fresh air intake

A

Knock out hole for right piping

(refrigerant,drainage and wiring)

60

120

4553

Knock out holes for power line 2-[27

MUH-C24TV-

E1

OUTDOOR UNIT

Unit: mm

10

6

WIRING DIAGRAM

MSH-C18TV -

INDOOR UNIT

TO OUTDOOR UNIT CONNECTING

POWER SUPPLY CORD ~/N 230V 50Hz

PE

CIRCUIT BREAKER

SYMBOL

C11

DSAR

F11 F12

HIC1

NOTES:

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

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

MUH-C18TV -

E1

MODEL WIRING DIAGRAM

TB

L

BRN

3

N

2

NAME

BRN

BLU

WHT

BRN

DSAR

GRN/YLW

RED

F12

BLU BLU

GRN/YLW

SYMBOL

12V

230V~

IC141

MF MV

NR11

RT11

: Connector

E1

MODEL WIRING DIAGRAM

HIC1

4

52C

3

TRANS

F11

ELECTRONIC CONTROL P.C. BOARD

REMOTE CONTROLLER

SYMBOL

RT12

2

BLU

1

LD1

CN

102

3

DISPLAY P.C. BOARD

HYBRID IC

CN

151

MV

CN201

5

NAME

3 1

CN

101

3

RECEIVER P.C. BOARD

INDOOR FAN MOTOR (INNER FUSE) VANE MOTOR VARISTOR ROOM TEMPERATURE THERMISTOR

TB

52C

IC141

NR11

C11

CN

112

CN

121

CN211

4 2 1

CN

111

3

RT12

BRN YLW GRY WHT RED BLK

RT11

NAME INDOOR COIL THERMISTOR TERMINAL BLOCK CONTACTOR

VG79B068H01

MF

OUTDOOR UNIT

12V

230V~

FROM INDOOR UNIT

CONNECTING

SYMBOL

C1

COMPRESSOR CAPACITOR

C65

DSAR

F61

IC881

NOTES:

OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE (2A) DC/DC CONVERTER

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

NAME

TB

3

N

2

: Connector

SR61

SYMBOL

52C

VLT

X62

S

TB

X62

21S4

52C

VLT

C65

CN711

MC

RED RED

1

WHT

2 3

BLK

4

C

R

MF

1

ORN

2

WHT

3

BLK

4

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

X62

C1

21S4

BLK

NR61

BLK

WHTNO COM

RED BLK

RT61

CN730

RED

BLU

DSAR

GRN/YLW

WHT

BLU

SYMBOL

MC

MF NR61 RT61 SR61

CN661 CN721 CN720

1

F61

TAB21

IC881

TRANS

TAB20

DEICER P.C. BOARD

52C

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

SG79B966H01

11

MSH-C24TV -

INDOOR UNIT

TO OUTDOOR UNIT CONNECTING

12V

230V~

POWER SUPPLY CORD ~/N 230V 50Hz

PE

CIRCUIT BREAKER

E1

MODEL WIRING DIAGRAM

TB

3

N

2 L

GRN/YLW

BLU

BRN

RED

BLU

WHT

F12

1

DSAR

GRN/YLW

BLU BLU

LD1

2 1

102

CN

WHT

CN

151

3

MV

DISPLAY P.C. BOARD

CN201

5

3 1

RECEIVER P.C. BOARD

HIC1

4

52C

3

TRANS

F11

CN

ELECTRONIC CONTROL P.C. BOARD

101

3

REMOTE CONTROLLER

IC141

NR11

C11

CN

112

CN

111

CN

121

CN211

4 2 1

RT12

RT11

3

BRN YLW GRY

MF

WHT RED BLK

SYMBOL

C11

DSAR

F11 F12

HIC1

NOTES:

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

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

MUH-C24TV -

OUTDOOR UNIT

TB

3

12V

N

2

230V

~

FROM INDOOR UNIT

CONNECTING

GRN/YLW

NOTES:

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,2).

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

NAME

SYMBOL

IC141

MF

MV NR11 RT11

: Connector

E1

MODEL WIRING DIAGRAM

RT61

CN661

WHT

DSAR

RT63

CN662

SR62 SR61

X62

X52

T61

BLU

WHT WHT

CZ

WHT WHT

BLU

2

1

52C

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

WHT

C

SYMBOL

BLU

MF

YLW

ORN

WHT

BLK

YLW

BLK

WHT

321

CN711

NR61

A2

RED

12

RED

ORN

X62

COM

X52

COM

52C

6543

DEICER P.C. BOARD

C2

CN721

1 2

21S4

3

NO

TAB52

NO

F61

1 3 5

CN730

BLU

RED

C1

RED

S

MC

BLK

R

A1

SYMBOL

RT12

TB

52C

CZ C1 C2

DSAR

F61

MC

MF NR61 RT61 RT63 SR61 SR62

TB T61 X52 X62

21S4

52C

NAME INDOOR COIL THERMISTOR TERMINAL BLOCK CONTACTOR

VG79B069H01

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

SG79J155H01

12

7

REFRIGERANT SYSTEM DIAGRAM

MSH-C18TV -

Unit:mm

E1

MUH-C18TV -

E1

INDOOR UNIT

Indoor heat exchanger

Room temperature thermistor RT11

Indoor coil thermistor RT12

Distributor

Refrigerant pipe [15.88 (with heat insulator)

Flared connection

Refrigerant pipe [6.35 (with heat insulator)

Muffler

Stop valve (with service port)

Strainer

Stop valve

4- way valve

Capillary tube

[3.0o[2.0o850

Compressor

Check valve

OUTDOOR UNIT

Strainer

Defrost thermistor RT61

Refrigerant flow in cooling Refrigerant flow in heating

Outdoor heat exchanger

Capillary tube

[3.0o[1.4o600

(2 pcs)

R.V. coil Heating ON Cooling OFF

MSH-C24TV -

INDOOR UNIT

Indoor coil

Indoor heat exchanger

Room temperature thermistor RT11

thermistor RT12

E1

Distributor

Refrigerant pipe [15.88 (with heat insulator)

Flared connection

Stop valve

Refrigerant pipe [9.52 (with heat insulator)

Muffler

Stop valve (with service port)

Strainer

4- way valve

Receiver

Strainer

Compressor

Capillary tube [3.0X[2.0X450

Unit:mm

MUH-C24TV -

OUTDOOR UNIT

Outdoor heat exchanger

Defrost thermistor RT61

Ambient temperature thermistor RT63

R.V. coil Heating ON

Cooling OFF Refrigerant flow in cooling Refrigerant flow in heating

E1

13

Model

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

Refrigerant piping

Max. length : m

A

15

Indoor unit

Gas 0.43

Liquid 0.5

Gas

15.88

Liquid

6.35

9.52

Outdoor unit

Gas 0

Liquid 0

MSH-C18TV - E1 MUH-C18TV - E1

MSH-C24TV - E1 MUH-C24TV - E1

Indoor unit

wMax. Height

difference: 5m

A

Refrigerant Piping Max. Length

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

Outdoor unit

Model

MSH-C18TV -

E1

MUH-C18TV - E1

Refrigerant piping length (one way)

Outdoor unit precharged

1600

15m

280

7m

0

10m

105

MAX. REFRIGERANT PIPING LENGTH

Model

MSH-C24TV -

E1

MUH-C24TV - E1

Refrigerant piping length (one way)

Outdoor unit precharged

2000

15m

360

7m

0

10m

135

MAX. HEIGHT DIFFERENCE

ADDITIONAL REFRIGERANT CHARGE(R407C : g)

Calculation : Xg=35g/m ✕ (Refrigerant piping length (m)–7)

Calculation : Xg=45g/m ✕ (Refrigerant piping length (m)–7)

14

8

11.4

7.4

8.3

9.3

10.4

12.5

13.5

8.6

9.8

11.0

12.2

14.9

MSH-C18TV - E1

MSH-C24TV - E1

Wet-and dry-bulb thermometers

PERFORMANCE CURVES

MSH-C18TV - MUH-C18TV MSH-C24TV - MUH-C24TV -

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

(1) GUARANTEED VOLTAGE

198 ~ 264V

(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 differ-

ence between the indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at service.

, 50Hz

E1E1 E1E1

Cooling

}

Heating

}

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

31.1

28.7

26.3

24.0

21.6

19.2

16.8

14.4

36.1

33.3

30.5

27.7

25.0

22.2

19.4

16.6

MSH-C18TV - E1

MSH-C24TV - E1

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

15 20

50

2560 30

70(%)

35(:)

0.3

0.4

0.5

0.6

0.7

18 32

230V

7

6

5

4

3

18 32

230V

15 20

50

25 60

30

70(%)

35(:)

6

7

8

9

10

11

15 20

50

25 60

30

70(%)

35(:)

0.2

0.3

0.4

0.5

0.6

0.7

18

32

230V

7

6

5

4

3

15 20

50

2560 30

70(%)

35(:)

8

9

10

11

12

13

18 32

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(%)

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

MUH-C18TV -

MUH-C24TV -

E1

MUH-C18TV -

Outdoor unit current (A)

Ambient temperature(˚C) Ambient humidity(%)

E1

MUH-C24TV -

E1

Outdoor low pressure

Ambient temperature(˚C) Ambient humidity(%)

Outdoor unit current (A)

Ambient temperature(˚C) Ambient humidity(%)

16

HEAT operation

5 10152025

12

13

14

15

16

7

21

230V

(:)

Condition indoor:Dry bulb temperature 20.0°C

Wet bulb temperature 14.5°C

MUH-C18TV -

13

E1

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

Wet bulb temperature 6,12,14.5°C

12

11

10

230V

Outdoor unit current (A)

9

5 10152025

7

21

Ambient temperature(˚C)

MUH-C24TV -

E1

Outdoor unit current (A)

(:)

Ambient temperature(˚C)

17

PERFORMANCE DATA COOL operation

MSH-C18TV - : MUH-C18TV - (230V)

CAPACITY : 5.2(KW) SHF : 0.68 INPUT : 2110(W)

INDOOR

DB(:)

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

INDOOR

WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32

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

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 INPUT30Q SHC SHF INPUT

6.11

6.37

6.11

6.37

6.63

6.11

6.37

6.63

6.11

6.37

6.63

6.97

6.11

6.37

6.63

6.97

6.11

6.37

6.63

6.97

7.18

6.11

6.37

6.63

6.97

7.18

6.11

6.37

6.63

6.97

7.18

6.11

6.37

6.63

6.97

7.18

6.11

6.37

6.63

6.97

7.18

6.11

6.37

6.63

6.97

7.18

6.11

6.37

6.63

6.97

7.18

21 2725

1688

0.50

3.06 1772

0.38

2.42 1688

0.54

3.30 1772

0.42

2.68 1836

0.30

1.99 1688

0.58

3.54 1772

0.46

2.93 1836

0.34

2.25 1688

0.62

3.79 1772

0.50

3.19 1836

0.38

2.52 1920

0.26

1.81 1688

0.66

4.03 1772

0.54

3.44 1836

0.42

2.78 1920

0.30

2.09 1688

0.70

4.28 1772

0.58

3.69 1836

0.46

3.05 1920

0.34

2.37 2026

0.22

1.58 1688

0.74

4.52 1772

0.62

3.95 1836

0.50

3.32 1920

0.38

2.65 2026

0.26

1.87 1688

0.78

4.77 1772

0.66

4.20 1836

0.54

3.58 1920

0.42

2.93 2026

0.30

2.15 1688

0.82

5.01 1772

0.70

4.46 1836

0.58

3.85 1920

0.46

3.21 2026

0.34

2.44 1688

0.86

5.25 1772

0.74

4.71 1836

0.62

4.11 1920

0.50

3.48 2026

0.38

2.73 1688

0.90

5.50 1772

0.78

4.97 1836

0.66

4.38 1920

0.54

3.76 2026

0.42

3.01 1688

0.94

5.74 1772

0.82

5.22 1836

0.70

4.64 1920

0.58

4.04 2026

0.46

3.30

E1E1

5.85

6.11

5.85

6.11

6.40

5.85

6.11

6.40

5.85

6.11

6.40

6.71

5.85

6.11

6.40

6.71

5.85

6.11

6.40

6.71

6.97

5.85

6.11

6.40

6.71

6.97

5.85

6.11

6.40

6.71

6.97

5.85

6.11

6.40

6.71

6.97

5.85

6.11

6.40

6.71

6.97

5.85

6.11

6.40

6.71

6.97

5.85

6.11

6.40

6.71

6.97

2.93

2.32

3.16

2.57

1.92

3.39

2.81

2.17

3.63

3.06

2.43

1.74

3.86

3.30

2.69

2.01

4.10

3.54

2.94

2.28

1.53

4.33

3.79

3.20

2.55

1.81

4.56

4.03

3.45

2.82

2.09

4.80

4.28

3.71

3.09

2.37

5.03

4.52

3.97

3.35

2.65

5.27

4.77

4.22

3.62

2.93

5.50

5.01

4.48

3.89

3.21

OUTDOOR DB(:)

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.66

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1772 1878 1772 1878 1952 1772 1878 1952 1772 1878 1952 2026 1772 1878 1952 2026 1772 1878 1952 2026 2131 1772 1878 1952 2026 2131 1772 1878 1952 2026 2131 1772 1878 1952 2026 2131 1772 1878 1952 2026 2131 1772 1878 1952 2026 2131 1772 1878 1952 2026 2131

18

5.62

5.93

5.62

5.93

6.24

5.62

5.93

6.24

5.62

5.93

6.24

6.55

5.62

5.93

6.24

6.55

5.62

5.93

6.24

6.55

6.86

5.62

5.93

6.24

6.55

6.86

5.62

5.93

6.24

6.55

6.86

5.62

5.93

6.24

6.55

6.86

5.62

5.93

6.24

6.55

6.86

5.62

5.93

6.24

6.55

6.86

5.62

5.93

6.24

6.55

6.86

2.81

2.25

3.03

2.49

1.87

3.26

2.73

2.12

3.48

2.96

2.37

1.70

3.71

3.20

2.62

1.97

3.93

3.44

2.87

2.23

1.51

4.16

3.68

3.12

2.49

1.78

4.38

3.91

3.37

2.75

2.06

4.61

4.15

3.62

3.01

2.33

4.83

4.39

3.87

3.28

2.61

5.05

4.62

4.12

3.54

2.88

5.28

4.86

4.37

3.80

3.16

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.66

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1857 1920 1857 1920 2005 1857 1920 2005 1857 1920 2005 2089 1857 1920 2005 2089 1857 1920 2005 2089 2194 1857 1920 2005 2089 2194 1857 1920 2005 2089 2194 1857 1920 2005 2089 2194 1857 1920 2005 2089 2194 1857 1920 2005 2089 2194 1857 1920 2005 2089 2194

5.41

5.72

5.41

5.72

5.98

5.41

5.72

5.98

5.41

5.72

5.98

6.34

5.41

5.72

5.98

6.34

5.41

5.72

5.98

6.34

6.66

5.41

5.72

5.98

6.34

6.66

5.41

5.72

5.98

6.34

6.66

5.41

5.72

5.98

6.34

6.66

5.41

5.72

5.98

6.34

6.66

5.41

5.72

5.98

6.34

6.66

5.41

5.72

5.98

6.34

6.66

2.70

2.17

2.92

2.40

1.79

3.14

2.63

2.03

3.35

2.86

2.27

1.65

3.57

3.09

2.51

1.90

3.79

3.32

2.75

2.16

1.46

4.00

3.55

2.99

2.41

1.73

4.22

3.78

3.23

2.66

2.00

4.43

4.00

3.47

2.92

2.26

4.65

4.23

3.71

3.17

2.53

4.87

4.46

3.95

3.43

2.80

5.08

4.69

4.19

3.68

3.06

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.66

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

1941 2005 1941 2005 2089 1941 2005 2089 1941 2005 2089 2194 1941 2005 2089 2194 1941 2005 2089 2194 2258 1941 2005 2089 2194 2258 1941 2005 2089 2194 2258 1941 2005 2089 2194 2258 1941 2005 2089 2194 2258 1941 2005 2089 2194 2258 1941 2005 2089 2194 2258

PERFORMANCE DATA COOL operation

2068 2152 2068 2152 2237 2068 2152 2237 2068 2152 2237 2321 2068 2152 2237 2321 2068 2152 2237 2321 2405 2068 2152 2237 2321 2405 2068 2152 2237 2321 2405 2068 2152 2237 2321 2405 2068 2152 2237 2321 2405 2068 2152 2237 2321 2405 2068 2152 2237 2321 2405

E1E1

4.68

4.99

4.68

4.99

5.30

4.68

4.99

5.30

4.68

4.99

5.30

5.62

4.68

4.99

5.30

5.62

4.68

4.99

5.30

5.62

5.93

4.68

4.99

5.30

5.62

5.93

4.68

4.99

5.30

5.62

5.93

4.68

4.99

5.30

5.62

5.93

4.68

4.99

5.30

5.62

5.93

4.68

4.99

5.30

5.62

5.93

4.68

4.99

5.30

5.62

5.93

2.34

1.90

2.53

2.10

1.59

2.71

2.30

1.80

2.90

2.50

2.02

1.49

3.09

2.70

2.23

1.68

3.28

2.90

2.44

1.91

1.30

3.46

3.10

2.65

2.13

1.54

3.65

3.29

2.86

2.36

1.78

3.84

3.49

3.08

2.58

2.02

4.02

3.69

3.29

2.81

2.25

4.21

3.89

3.50

3.03

2.49

4.40

4.09

3.71

3.26

2.73

OUTDOOR DB(:)

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.66

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

2194 2258 2194 2258 2363 2194 2258 2363 2194 2258 2363 2427 2194 2258 2363 2427 2194 2258 2363 2427 2511 2194 2258 2363 2427 2511 2194 2258 2363 2427 2511 2194 2258 2363 2427 2511 2194 2258 2363 2427 2511 2194 2258 2363 2427 2511 2194 2258 2363 2427 2511

19

4.50

4.81

4.50

4.81

5.12

4.50

4.81

5.12

4.50

4.81

5.12

5.46

4.50

4.81

5.12

5.46

4.50

4.81

5.12

5.46

5.75

4.50

4.81

5.12

5.46

5.75

4.50

4.81

5.12

5.46

5.75

4.50

4.81

5.12

5.46

5.75

4.50

4.81

5.12

5.46

5.75

4.50

4.81

5.12

5.46

5.75

4.50

4.81

5.12

5.46

5.75

2.25

1.83

2.43

2.02

1.54

2.61

2.21

1.74

2.79

2.41

1.95

1.42

2.97

2.60

2.15

1.64

3.15

2.79

2.36

1.86

1.26

3.33

2.98

2.56

2.07

1.49

3.51

3.17

2.77

2.29

1.72

3.69

3.37

2.97

2.51

1.95

3.87

3.56

3.18

2.73

2.18

4.05

3.75

3.38

2.95

2.41

4.23

3.94

3.59

3.17

2.64

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.66

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

2237 2321 2237 2321 2405 2237 2321 2405 2237 2321 2405 2479 2237 2321 2405 2479 2237 2321 2405 2479 2564 2237 2321 2405 2479 2564 2237 2321 2405 2479 2564 2237 2321 2405 2479 2564 2237 2321 2405 2479 2564 2237 2321 2405 2479 2564 2237 2321 2405 2479 2564

4.32

4.63

4.32

4.63

4.94

4.32

4.63

4.94

4.32

4.63

4.94

5.30

4.32

4.63

4.94

5.30

4.32

4.63

4.94

5.30

5.56

4.32

4.63

4.94

5.30

5.56

4.32

4.63

4.94

5.30

5.56

4.32

4.63

4.94

5.30

5.56

4.32

4.63

4.94

5.30

5.56

4.32

4.63

4.94

5.30

5.56

4.32

4.63

4.94

5.30

5.56

MSH-C18TV - : MUH-C18TV - (230V)

CAPACITY : 5.2(KW) SHF : 0.68 INPUT : 2110(W)

INDOOR

DB(:)

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

INDOOR

WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32

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

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 INPUT46Q SHC SHF INPUT

5.10

5.36

5.10

5.36

5.67

5.10

5.36

5.67

5.10

5.36

5.67

5.98

5.10

5.36

5.67

5.98

5.10

5.36

5.67

5.98

6.29

5.10

5.36

5.67

5.98

6.29

5.10

5.36

5.67

5.98

6.29

5.10

5.36

5.67

5.98

6.29

5.10

5.36

5.67

5.98

6.29

5.10

5.36

5.67

5.98

6.29

5.10

5.36

5.67

5.98

6.29

35 4340

0.50

2.55

0.38

2.04

0.54

2.75

0.42

2.25

0.30

1.70

0.58

2.96

0.46

2.46

0.34

1.93

0.62

3.16

0.50

2.68

0.38

2.15

0.26

1.55

0.66

3.36

0.54

2.89

0.42

2.38

0.30

1.79

0.70

3.57

0.58

3.11

0.46

2.61

0.34

2.03

0.22

1.38

0.74

3.77

0.62

3.32

0.50

2.83

0.38

2.27

0.26

1.64

0.78

3.97

0.66

3.53

0.54

3.06

0.42

2.51

0.30

1.89

0.82

4.18

0.70

3.75

0.58

3.29

0.46

2.75

0.34

2.14

0.86

4.38

0.74

3.96

0.62

3.51

0.50

2.99

0.38

2.39

0.90

4.59

0.78

4.18

0.66

3.74

0.54

3.23

0.42

2.64

0.94

4.79

0.82

4.39

0.70

3.97

0.58

3.47

0.46

2.89

2.16

1.76

2.33

1.94

1.48

2.50

2.13

1.68

2.68

2.31

1.88

1.38

2.85

2.50

2.07

1.59

3.02

2.68

2.27

1.80

1.22

3.19

2.87

2.47

2.02

1.45

3.37

3.05

2.67

2.23

1.67

3.54

3.24

2.87

2.44

1.89

3.71

3.42

3.06

2.65

2.11

3.88

3.61

3.26

2.86

2.34

4.06

3.79

3.46

3.08

2.56

0.50

0.38

0.54

0.42

0.30

0.58

0.46

0.34

0.62

0.50

0.38

0.26

0.66

0.54

0.42

0.30

0.70

0.58

0.46

0.34

0.22

0.74

0.62

0.50

0.38

0.26

0.78

0.66

0.54

0.42

0.30

0.82

0.70

0.58

0.46

0.34

0.86

0.74

0.62

0.50

0.38

0.90

0.78

0.66

0.54

0.42

0.94

0.82

0.70

0.58

0.46

2279 2384 2279 2384 2448 2279 2384 2448 2279 2384 2448 2532 2279 2384 2448 2532 2279 2384 2448 2532 2616 2279 2384 2448 2532 2616 2279 2384 2448 2532 2616 2279 2384 2448 2532 2616 2279 2384 2448 2532 2616 2279 2384 2448 2532 2616 2279 2384 2448 2532 2616

PERFORMANCE DATA COOL operation

MSH-C24TV - : MUH-C24TV - (230V)

CAPACITY : 6.3(KW) SHF : 0.67 INPUT : 2850(W)

INDOOR

DB(:)

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

INDOOR

WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32

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

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 INPUT30Q SHC SHF INPUT

7.40

7.72

7.40

7.72

8.03

7.40

7.72

8.03

7.40

7.72

8.03

8.44

7.40

7.72

8.03

8.44

7.40

7.72

8.03

8.44

8.69

7.40

7.72

8.03

8.44

8.69

7.40

7.72

8.03

8.44

8.69

7.40

7.72

8.03

8.44

8.69

7.40

7.72

8.03

8.44

8.69

7.40

7.72

8.03

8.44

8.69

7.40

7.72

8.03

8.44

8.69

21 2725

2280

0.49

3.63 2394

0.37

2.86 2280

0.53

3.92 2394

0.41

3.16 2480

0.29

2.33 2280

0.57

4.22 2394

0.45

3.47 2480

0.33

2.65 2280

0.61

4.52 2394

0.49

3.78 2480

0.37

2.97 2594

0.25

2.11 2280

0.65

4.81 2394

0.53

4.09 2480

0.41

3.29 2594

0.29

2.45 2280

0.69

5.11 2394

0.57

4.40 2480

0.45

3.61 2594

0.33

2.79 2736

0.21

1.83 2280

0.73

5.40 2394

0.61

4.71 2480

0.49

3.94 2594

0.37

3.12 2736

0.25

2.17 2280

0.77

5.70 2394

0.65

5.02 2480

0.53

4.26 2594

0.41

3.46 2736

0.29

2.52 2280

0.81

6.00 2394

0.69

5.33 2480

0.57

4.58 2594

0.45

3.80 2736

0.33

2.87 2280

0.85

6.29 2394

0.73

5.63 2480

0.61

4.90 2594

0.49

4.14 2736

0.37

3.22 2280

0.89

6.59 2394

0.77

5.94 2480

0.65

5.22 2594

0.53

4.47 2736

0.41

3.56 2280

0.93

6.88 2394

0.81

6.25 2480

0.69

5.54 2594

0.57

4.81 2736

0.45

3.91

E1E1

7.09

7.40

7.09

7.40

7.75

7.09

7.40

7.75

7.09

7.40

7.75

8.13

7.09

7.40

7.75

8.13

7.09

7.40

7.75

8.13

8.44

7.09

7.40

7.75

8.13

8.44

7.09

7.40

7.75

8.13

8.44

7.09

7.40

7.75

8.13

8.44

7.09

7.40

7.75

8.13

8.44

7.09

7.40

7.75

8.13

8.44

7.09

7.40

7.75

8.13

8.44

3.47

2.74

3.76

3.04

2.25

4.04

3.33

2.56

4.32

3.63

2.87

2.03

4.61

3.92

3.18

2.36

4.89

4.22

3.49

2.68

1.77

5.17

4.52

3.80

3.01

2.11

5.46

4.81

4.11

3.33

2.45

5.74

5.11

4.42

3.66

2.79

6.02

5.40

4.73

3.98

3.12

6.31

5.70

5.04

4.31

3.46

6.59

6.00

5.35

4.63

3.80

OUTDOOR DB(:)

0.49

0.37

0.53

0.41

0.29

0.57

0.45

0.33

0.61

0.49

0.37

0.25

0.65

0.53

0.41

0.29

0.69

0.57

0.45

0.33

0.21

0.73

0.61

0.49

0.37

0.25

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

2394 2537 2394 2537 2636 2394 2537 2636 2394 2537 2636 2736 2394 2537 2636 2736 2394 2537 2636 2736 2879 2394 2537 2636 2736 2879 2394 2537 2636 2736 2879 2394 2537 2636 2736 2879 2394 2537 2636 2736 2879 2394 2537 2636 2736 2879 2394 2537 2636 2736 2879

20

6.80

7.18

6.80

7.18

7.56

6.80

7.18

7.56

6.80

7.18

7.56

7.94

6.80

7.18

7.56

7.94

6.80

7.18

7.56

7.94

8.32

6.80

7.18

7.56

7.94

8.32

6.80

7.18

7.56

7.94

8.32

6.80

7.18

7.56

7.94

8.32

6.80

7.18

7.56

7.94

8.32

6.80

7.18

7.56

7.94

8.32

6.80

7.18

7.56

7.94

8.32

3.33

2.66

3.61

2.94

2.19

3.88

3.23

2.49

4.15

3.52

2.80

1.98

4.42

3.81

3.10

2.30

4.69

4.09

3.40

2.62

1.75

4.97

4.38

3.70

2.94

2.08

5.24

4.67

4.01

3.25

2.41

5.51

4.96

4.31

3.57

2.74

5.78

5.24

4.61

3.89

3.08

6.06

5.53

4.91

4.21

3.41

6.33

5.82

5.22

4.52

3.74

0.49

0.37

0.53

0.41

0.29

0.57

0.45

0.33

0.61

0.49

0.37

0.25

0.65

0.53

0.41

0.29

0.69

0.57

0.45

0.33

0.21

0.73

0.61

0.49

0.37

0.25

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

2508 2594 2508 2594 2708 2508 2594 2708 2508 2594 2708 2822 2508 2594 2708 2822 2508 2594 2708 2822 2964 2508 2594 2708 2822 2964 2508 2594 2708 2822 2964 2508 2594 2708 2822 2964 2508 2594 2708 2822 2964 2508 2594 2708 2822 2964 2508 2594 2708 2822 2964

6.55

6.93

6.55

6.93

7.25

6.55

6.93

7.25

6.55

6.93

7.25

7.69

6.55

6.93

7.25

7.69

6.55

6.93

7.25

7.69

8.06

6.55

6.93

7.25

7.69

8.06

6.55

6.93

7.25

7.69

8.06

6.55

6.93

7.25

7.69

8.06

6.55

6.93

7.25

7.69

8.06

6.55

6.93

7.25

7.69

8.06

6.55

6.93

7.25

7.69

8.06

3.21

2.56

3.47

2.84

2.10

3.73

3.12

2.39

4.00

3.40

2.68

1.92

4.26

3.67

2.97

2.23

4.52

3.95

3.26

2.54

1.69

4.78

4.23

3.55

2.84

2.02

5.05

4.50

3.84

3.15

2.34

5.31

4.78

4.13

3.46

2.66

5.57

5.06

4.42

3.77

2.98

5.83

5.34

4.71

4.07

3.31

6.09

5.61

5.00

4.38

3.63

0.49

0.37

0.53

0.41

0.29

0.57

0.45

0.33

0.61

0.49

0.37

0.25

0.65

0.53

0.41

0.29

0.69

0.57

0.45

0.33

0.21

0.73

0.61

0.49

0.37

0.25

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

2622 2708 2622 2708 2822 2622 2708 2822 2622 2708 2822 2964 2622 2708 2822 2964 2622 2708 2822 2964 3050 2622 2708 2822 2964 3050 2622 2708 2822 2964 3050 2622 2708 2822 2964 3050 2622 2708 2822 2964 3050 2622 2708 2822 2964 3050 2622 2708 2822 2964 3050

PERFORMANCE DATA COOL operation

2793 2907 2793 2907 3021 2793 2907 3021 2793 2907 3021 3135 2793 2907 3021 3135 2793 2907 3021 3135 3249 2793 2907 3021 3135 3249 2793 2907 3021 3135 3249 2793 2907 3021 3135 3249 2793 2907 3021 3135 3249 2793 2907 3021 3135 3249 2793 2907 3021 3135 3249

E1E1

5.67

60.5

5.67

6.05

6.43

5.67

6.05

6.43

5.67

6.05

6.43

6.80

5.67

6.05

6.43

6.80

5.67

6.05

6.43

6.80

7.18

5.67

6.05

6.43

6.80

7.18

5.67

6.05

6.43

6.80

7.18

5.67

6.05

6.43

6.80

7.18

5.67

6.05

6.43

6.80

7.18

5.67

6.05

6.43

6.80

7.18

5.67

6.05

6.43

6.80

7.18

2.78

2.24

3.01

2.48

1.86

3.23

2.72

2.12

3.46

2.96

2.38

1.70

3.69

3.21

2.63

1.97

3.91

3.45

2.89

2.25

1.51

4.14

3.69

3.15

2.52

1.80

4.37

3.93

3.41

2.79

2.08

4.59

4.17

3.66

3.06

2.37

4.82

4.42

3.92

3.33

2.66

5.05

4.66

4.18

3.61

2.94

5.27

4.90

4.43

3.88

3.23

OUTDOOR DB(:)

0.49

0.37

0.53

0.41

0.29

0.57

0.45

0.33

0.61

0.49

0.37

0.25

0.65

0.53

0.41

0.29

0.69

0.57

0.45

0.33

0.21

0.73

0.61

0.49

0.37

0.25

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

2964 3050 2964 3050 3192 2964 3050 3192 2964 3050 3192 3278 2964 3050 3192 3278 2964 3050 3192 3278 3392 2964 3050 3192 3278 3392 2964 3050 3192 3278 3392 2964 3050 3192 3278 3392 2964 3050 3192 3278 3392 2964 3050 3192 3278 3392 2964 3050 3192 3278 3392

21

5.45

5.83

5.45

5.83

6.21

5.45

5.83

6.21

5.45

5.83

6.21

6.62

5.45

5.83

6.21

6.62

5.45

5.83

6.21

6.62

6.96

5.45

5.83

6.21

6.62

6.96

5.45

5.83

6.21

6.62

6.96

5.45

5.83

6.21

6.62

6.96

5.45

5.83

6.21

6.62

6.96

5.45

5.83

6.21

6.62

6.96

5.45

5.83

6.21

6.62

6.96

2.67

2.16

2.89

2.39

1.80

3.11

2.62

2.05

3.32

2.86

2.30

1.65

3.54

3.09

2.54

1.92

3.76

3.32

2.79

2.18

1.46

3.98

3.55

3.04

2.45

1.74

4.20

3.79

3.29

2.71

2.02

4.41

4.02

3.54

2.98

2.30

4.63

4.25

3.79

3.24

2.58

4.85

4.49

4.03

3.51

2.85

5.07

4.72

4.28

3.77

3.13

0.49

0.37

0.53

0.41

0.29

0.57

0.45

0.33

0.61

0.49

0.37

0.25

0.65

0.53

0.41

0.29

0.69

0.57

0.45

0.33

0.21

0.73

0.61

0.49

0.37

0.25

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

3021 3135 3021 3135 3249 3021 3135 3249 3021 3135 3249 3349 3021 3135 3249 3349 3021 3135 3249 3349 3463 3021 3135 3249 3349 3463 3021 3135 3249 3349 3463 3021 3135 3249 3349 3463 3021 3135 3249 3349 3463 3021 3135 3249 3349 3463 3021 3135 3249 3349 3463

5.23

5.61

5.23

5.61

5.99

5.23

5.61

5.99

5.23

5.61

5.99

6.43

5.23

5.61

5.99

6.43

5.23

5.61

5.99

6.43

6.74

5.23

5.61

5.99

6.43

6.74

5.23

5.61

5.99

6.43

6.74

5.23

5.61

5.99

6.43

6.74

5.23

5.61

5.99

6.43

6.74

5.23

5.61

5.99

6.43

6.74

5.23

5.61

5.99

6.43

6.74

MSH-C24TV - : MUH-C24TV - (230V)

CAPACITY : 6.3(KW) SHF : 0.67 INPUT : 2850(W)

INDOOR

DB(:)

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

INDOOR

WB(:) 21 21 22 22 22 23 23 23 24 24 24 24 25 25 25 25 26 26 26 26 26 27 27 27 27 27 28 28 28 28 28 29 29 29 29 29 30 30 30 30 30 31 31 31 31 31 32 32 32 32 32

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

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 INPUT46Q SHC SHF INPUT

6.17

6.49

6.17

6.49

6.87

6.17

6.49

6.87

6.17

6.49

6.87

7.25

6.17

6.49

6.87

7.25

6.17

6.49

6.87

7.25

7.62

6.17

6.49

6.87

7.25

7.62

6.17

6.49

6.87

7.25

7.62

6.17

6.49

6.87

7.25

7.62

6.17

6.49

6.87

7.25

7.62

6.17

6.49

6.87

7.25

7.62

6.17

6.49

6.87

7.25

7.62

35 4340

0.49

3.03

0.37

2.40

0.53

3.27

0.41

2.66

0.29

1.99

0.57

3.52

0.45

2.92

0.33

2.27

0.61

3.77

0.49

3.18

0.37

2.54

0.25

1.81

0.65

4.01

0.53

3.44

0.41

2.82

0.29

2.10

0.69

4.26

0.57

3.70

0.45

3.09

0.33

2.39

0.21

1.60

0.73

4.51

0.61

3.96

0.49

3.36

0.37

2.68

0.25

1.91

0.77

4.75

0.65

4.22

0.53

3.64

0.41

2.97

0.29

2.21

0.81

5.00

0.69

4.48

0.57

3.91

0.45

3.26

0.33

2.52

0.85

5.25

0.73

4.74

0.61

4.19

0.49

3.55

0.37

2.82

0.89

5.49

0.77

5.00

0.65

4.46

0.53

3.84

0.41

3.13

0.93

5.74

0.81

5.26

0.69

4.74

0.57

4.13

0.45

3.43

2.56

2.07

2.77

2.30

1.74

2.98

2.52

1.98

3.19

2.75

2.21

1.61

3.40

2.97

2.45

1.86

3.61

3.20

2.69

2.12

1.42

3.82

3.42

2.93

2.38

1.69

4.03

3.64

3.17

2.63

1.95

4.24

3.87

3.41

2.89

2.22

4.44

4.09

3.65

3.15

2.49

4.65

4.32

3.89

3.41

2.76

4.86

4.54

4.13

3.66

3.03

0.49

0.37

0.53

0.41

0.29

0.57

0.45

0.33

0.61

0.49

0.37

0.25

0.65

0.53

0.41

0.29

0.69

0.57

0.45

0.33

0.21

0.73

0.61

0.49

0.37

0.25

0.77

0.65

0.53

0.41

0.29

0.81

0.69

0.57

0.45

0.33

0.85

0.73

0.61

0.49

0.37

0.89

0.77

0.65

0.53

0.41

0.93

0.81

0.69

0.57

0.45

3078 3221 3078 3221 3306 3078 3221 3306 3078 3221 3306 3420 3078 3221 3306 3420 3078 3221 3306 3420 3534 3078 3221 3306 3420 3534 3078 3221 3306 3420 3534 3078 3221 3306 3420 3534 3078 3221 3306 3420 3534 3078 3221 3306 3420 3534 3078 3221 3306 3420 3534

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 : 6.0(KW)

INPUT : 2180(W)

15 21 26

3.78

3.60

3.24

1417

1526

1635

4.56

4.32

4.02

1700 1809 1918

5.34

5.10

4.74

1918 2006 2115

6.12

5.82

5.52

2071 2158 2267

6.90

6.60

6.30

2202 2267 2376

7.62

7.32

7.02

2267 2333 2442

8.40

8.07

7.80

2311 2420 2507

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 : 7.5(KW)

INPUT : 3020(W)

15 21 26

4.73

4.50

4.05

1963

2114

2265

5.70

5.40

5.03

2356 2507 2658

6.68

6.38

5.93

2658 2778 2929

7.65

7.28

6.90

2869 2990 3141

8.63

8.25

7.88

3050 3141 3292

9.53

9.15

8.78

3141 3231 3382

10.50

10.09

9.75

3201 3352 3473

MSH-C18TV - : MUH-C18TV - (230V)

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

E1E1

MSH-C24TV - : MUH-C24TV - (230V)

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

E1E1

22

9

lighted

not lighted

Approx. 2 : or more

Difference between target temperature and room temperature

Approx. 2 : or less

This shows that the air conditioner is operating to reach the target temperature. Please wait until the target temperature is obtained.

This shows that the room temperature is approaching the target temperature.

Operation stateIndication

Operation Indicator

Operation Indicator lamp

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

• The following indication does not depend on the shape of lamp.

INDOOR UNIT DISPLAY SECTION

Mode

COOL mode of

"I FEEL CONTROL"

DRY mode of

"I FEEL CONTROL"

HEAT mode of

"I FEEL CONTROL"

Initial room temperature

25: or more

23:to 25:

less than 23:

MICROPROCESSOR CONTROL

WIRELESS REMOTE CONTROLLER

Signal transmitting section

Operation display section

OPERATE /STOP (ON /OFF)button

VANE CONTROL button

OPERATION SELECT button

ECONO COOL button

ON/OFF

I FEEL

HEAT

MODE

ECONO COOL

ON/OFF

COOL

DRY

TOO

WARM

TOO

WARM

FAN

VANE

RESET CLOCK

PM

AM

TOO COOL

TOO

COOL

FAN SPEED CONTROL button

STOP

START

HR.

MIN.

TEMPERATURE buttons

OFF-TIMER button

ON-TIMER button

HR. button

MIN. button

(TIME SET button)

CLOCK SET button

MSH-C18TV MSH-C24TV -

E1

MUH-C18TV -

E1

MUH-C24TV -

E1

Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP (ON/OFF) button ON. Indoor unit receives the signal with a beep tone. When the system turns off, 3-minute time delay will operate to protect system from overload and compressor will not restart for 3 minutes.

9-1. “I FEEL CONTROL” ( ) OPERATION

(1) Press OPERATE/STOP (ON/OFF) button on the remote

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

(2) Select mode with the OPERATION SELECT button “I

FEEL CONTROL”.

(3) The operation mode is determined by the room tempera-

ture at start-up of the operation.

RESET button

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

• Under the ON-TIMER ( ) operation, mode is determined according to the room temperature at the set time the operation starts.

• When the system is stopped on the remote controller, and restarted within 2 hours in “I FEEL CONTROL” ( )

mode, the system operates in previous mode automatically regardless of the room temperature.

Example Previous operation

COOL mode of “I FEEL CONTROL”

Restart

COOL mode of “I FEEL CONTROL”

or COOL mode

When the system is restarted after 2 hours and more, the operation mode is determined by the room temperature at start-up of the operation.

Example

Restart

COOL or DRY or

Previous operation

COOL mode of “I FEEL CONTROL”

or COOL mode

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

23

Model

COOL mode of

"I FEEL CONTROL"

DRY mode of

"I FEEL CONTROL"

HEAT mode of

"I FEEL CONTROL"

Initial room temperature Initial set temperature

26:

26: or more

25: to 26:

less than 23:

23: to 25:

24:

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

❈1

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

Difference between room temperature and set temperature during operation

1deg. 1.7deg.

3deg.

TOO

COOL

TOO

WARM

❈1 When the system is restarted with the remote controller, the system operates with the previous set temperature regard-

less of room temperature at restart. The set temperature is calculated by the previous set temperature.

(5) TEMPERATURE buttons

In “I FEEL CONTROL” ( ) mode, set temperature is decided by the microprocessor based on the room temperature.

In addition, set temperature can be controlled by TOO WARM or TOO COOL buttons when you feel too cool or too warm. Each time the TOO WARM or TOO COOL button is pressed, the indoor unit receives the signal and emits a beep tone.

• Fuzzy control

When the TOO COOL or TOO WARM button is pressed, the microprocessor changes the set temperature, considering the room temperature, the frequency of pressing TOO COOL or TOO WARM button and the user’s preference to heat or cool. So this is called “Fuzzy control”, and works only in “I FEEL CONTROL” mode. In DRY mode of “I FEEL CONTROL”, the set temperature doesn’t change.

…

To raise the set temperature 1~2 degrees(°C)

…

To lower the set temperature 1~2 degrees(°C)

9-1-1. COOL mode of “I FEEL CONTROL”

1. Indoor fan speed control

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

Room temperature minus set temperature : 1.7 degrees or more Room temperature minus set temperature : Between 1 and 1.7 degrees Room temperature minus set temperature : less than 1 degree

2. Coil frost prevention

① Temperature control

When the indoor coil thermistor RT12 reads 3°C or below, the coil frost prevention mode starts immediately.

However, the coil frost prevention doesn’t work for 5 minutes since the compressor has started. The indoor fan operates at the set speed and the compressor stops for 5 minutes. After that, if RT12 still reads below 3°C this mode prolonged until the RT12 reads over 3°C.

② Time control

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

a. Compressor has been continuously operating.

b. Indoor fan speed is Low or Med..

c. Room temperature is below 26°C.

When compressor stops, the accumulated time is cancelled and when compressor restarts, time counting starts from the

beginning.

Time counting also stops temporarily when the indoor fan speed becomes High or the room temperature exceeds

26°C. However, when two of the above conditions (b.and c.) are satisfied again. Time accumulation is resumed.

Initial temperature difference Fan Speed

··························High

················Med.

·····························

24

Low

Operation chart

Outdoor fan speed

28: 31:

High

Ambient temperature thermistor RT63 temperature

Low

Example

Compressor

OFF

ON

OFF

ON

Outdoor fan

(continuously at set speed)

Indoor fan

ON

3. Outdoor fan control <MSH-C24TV only>

Outdoor fan speed is controlled according to the temperature of ambient temperature thermistor RT63. Outdoor fan Low operation : When the outside temperature decreases to 28°C or less.

Until the outside temperature goes to 31°C or more.

Outdoor fan High operation : Until the outside temperature decreases to 28°C or less.

When the outside temperature goes to 31°C or more.

NOTE : If the temperature of RT63 reads from 28: to 31: at the air conditioner starting, outdoor fan speed is High.

9-1-2. DRY mode of “I FEEL CONTROL”

The system for dry operation uses the same refrigerant circuit as the cooling circuit. The compressor and the indoor fan are controlled by the room temperature. By such controls, indoor flow amounts will be reduced in order to lower humidity without much room temperature decrease.

1. Indoor fan speed control

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

2. The operation of the compressor and indoor/ outdoor fan

Compressor operates by room temperature control and time control. Set temperature is controlled to fall 2°C from initial room temperature. Indoor fan and outdoor fan operate in the same cycle as the compressor.

•When the room temperature is 23°C or over: When the thermostat is ON, the compressor repeats 8 minutes ON and 3 minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON.

•When the room temperature is under 23°C. When the thermostat is ON, the compressor repeats 2 minutes ON and 3 minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and 1 minute ON.

Operation time chart

ON

Example

Thermostat

Indoor fan

Outdoor fan Compressor

OFF

ON

8 min.

OFF

ON

3 min.

OFF

4 min.

OFF

ON

1 min.

3. Coil frost prevention

• The operation is as same as coil frost prevention during COOL mode of “I FEEL CONTROL”.

• Indoor fan operates at the set speed and the compressor stops for 5 minutes, because protection(Coil frost prevention) has the priority. However, when coil frost prevention works while the compressor is not operating, it’s speed becomes Low.

4. Outdoor fan control <MSH-C24TV only>

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

25

9-1-3. HEAT mode of “I FEEL CONTROL”

Difference between room temperature and set temperature during operation

1deg. 1.7deg.

4deg.

2deg.

Released

Cold Air Prevention

18: 22:

Fan speed Set speed Very Low or stop

High pressure protection

Released

52: 56:

ON

Outdoor fan

OFF

Outdoor fan speed

12: 14:

High

Ambient temperature thermistor RT63 temperature

Low

1. Indoor fan speed control

(1) In AUTO the fan speed is as follows.

Set temperature minus room temperature: 2 degrees or more ·············································· High Set temperature minus room temperature: Between 1 and 2 degrees··································· Med. Set temperature minus room temperature: less than 1 degree·············································· Low

(2) Cold air prevention control

The fan runs at set speed when the indoor coil thermistor RT12 temperature exceeds 22°C. The fan operates at Very Low when the temperature of indoor coil thermistor RT12 is below 18°C. But the fan stops when the indoor fan operates at Very Low and the room temperature is 15°C or less.

Indoor coil thermistor RT12 temperature

NOTE : If the temperature of RT12 reads from 18°C to 22°C at the air conditioner starting and also after defrosting, this

control works.

(3) Warm air control.

When compressor starts in heating operation or after defrosting, the fan changes the speed due to the indoor coil thermistor RT12 temperature to blow out warm air. After releasing of cold air prevention, when the indoor coil thermistor RT12 temperature is 37°C or above, the fan speed shifts to the set speed, and when the fan speed is changed by the remote controller, the fan speed is the set speed. When the indoor coil thermistor RT12 temperature is less than 37°C, the fan speed is controlled by time as below. <Time condition> <Indoor fan speed> less than 2 minutes························Low 2 minutes to 4 minutes···················Med. 4 minutes or more··························High The upper limit of the fan speed is the set speed. If the thermostat turns off, this operation changes to flow soft control.

(4) Flow soft control

After the thermostat turns off, the indoor fan operates at Very Low. NOTE : When the thermostat turns on, the fan operates at the set speed. Due to the cold air prevention control, the fan

does not start at set speed until the indoor coil thermistor RT12 reads 22°C or more.

2. Outdoor fan control <MSH-C24TV only>

Outdoor fan speed is controlled according to the temperature of ambient temperature thermistor RT63. Outdoor fan Low operation : Until the outside temperature decreases to 12°C.

When the outside temperature goes to 14°C or more.

Outdoor fan High operation :When the outside temperature decreases to 12°C or less.

Until the outside temperature goes to 14°C.

3. High pressure protection

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.

Outdoor fan OFF : 56°C Outdoor fan ON : 52°C

Initial temperature difference Fan speed

High pressure protection chart Example

Indoor coil thermistor

RT12 temperature

56˚C

52˚C

Outdoor fan motor turn OFF

Outdoor fan motor turn ON

Outdoor fan motor

NOTE 1 During high pressure protection and for 4 minutes and 15 seconds (MUH-C18TV)/ 10 seconds (MUH-C24TV) after

high pressure protection, defrosting of outdoor heat exchanger is not detected by the defrost thermistor RT61.

OFF

26

ON

OFF

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 -2.7°C or less (MSH-C18TV) / -2.0°C or less (MSH-C24TV). c) After releasing the high pressure protection 4 minutes and 15 seconds (MSH-C18TV) / 10 seconds (MSH-C24TV) 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 16.3°C or more (MSH-C18TV) / 20.0°C or more (MSH-C24TV). e) The defrosting time exceeds 10 minutes.

(3) Defrosting time chart

Defrost thermistor RT61

20.0: or more (MSH-C24TV)

16.3: or more (MSH-C18TV)

-2.0: or less (MSH-C24TV)

-2.7: or less (MSH-C18TV)

Outdoor 52C contactor(Compressor)

ON

X62 (R.V. coil)

SR61 Outdoor fan

Defrost counter

Indoor fan

OFF

ON OFF

ON

Very Low

OFF

30 sec.

NOTE

15 sec.

30 sec.

5 sec.

(MSH-C24TV)

(MSH-C18TV)

Max 10 min.

Indoor vane

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.

Horizontal Set position

27

5. R.V. coil control

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

R.V. coil

Outdoor fan

ON OFF

9-2. COOL ( ) OPERATION

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

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

(2) Select COOL mode with the OPERATION

SELECT button.

(3) Press the TEMPERATURE buttons.

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

thermostat’s OFF-ON at set speed.

✻ Coil frost prevention is as same as COOL

mode of “I FEEL CONTROL”.

9-3. DRY ( ) OPERATION

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

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

(2) Select DRY mode with the OPERATION

SELECT button.

(3) The microprocessor reads the room tempera-

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

(4) DRY operation will not function when the room

temperature is 13°C or below.

(HEAT)

5 sec.

ON OFF

9-4. HEAT ( ) OPERATION

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

OPERATION INDICATOR lamp of the indoor unit turns on with a beep tone. (2) Select HEAT mode with the OPERATION SELECT button. (3) Press TEMPERATURE buttons (TOO WARM or TOO COOL button) to select the desired temperature.

The setting range is 16 ~ 31°C. (4) Indoor fan speed control, high pressure protection, defrosting, R.V. coil control are the same as HEAT mode of “I FEEL

CONTROL”.

28

9-5. FAN MOTOR CONTROL

(1) Rotational frequency feedback control

The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the microprocessor to feed back the rotational frequency. Comparing the current rotational frequency with the target rotational frequency (High,Med.,Low), the microprocessor controls IC141 and adjusts fan motor electric current to make the current rotational frequency close to the target rotational frequency. With this control, when the fan speed is switched, the rotational frequency changes smoothly.

Rotational frequency

High

Med.

Low

(2) Fan motor lock-up protection

When the rotational frequency feedback signal has not output for 12 seconds, (or when the microprocessor cannot detect the signal for 12 seconds) the fan motor is regarded locked-up. Then the electric current to the fan motor is shut off. 3 minutes later, the electric current is applied to the fan motor again. During the fan motor lock-up, the OPERATION INDICATOR Indicator lamp flashes on and off to show the fan motor abnormality. (Refer to page 37.)

High

time

9-6. AUTO VANE OPERATION

(1) Vane motor drive

These models are equipped with a stepping motor for the horizontal vane. The rotating direction, speed, and angle of the motor are controlled by pulse signals (approx. 12V) transmitted from indoor microprocessor.

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

(3) Positioning

The vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle. Confirming of standard position is performed in case of follows. (a) When the OPERATE/STOP (ON/OFF) button is pressed. (b) When the vane control is changed from AUTO to MANUAL. (c) When the SWING is finished. (d) When the test run starts. (e) When the power supply turns ON.

(4) VANE AUTO ( ) mode

In VANE AUTO mode, the microprocessor automatically determines the vane angle and operation to make the optimum room-temperature distribution.

① In COOL and DRY operation

Vane angle is fixed to Angle 1.

➁ In HEAT operation

Vane angle is fixed to Angle 4.

29

(5) STOP (operation OFF) and ON-TIMER standby.

Released

Cold Air Prevention

24: 28:

Angle 1

Horizontal vane

Set position

When the following cases occur, the horizontal vane returns to the closed position.

(a) When the OPERATE/STOP (ON/OFF) button is pressed (POWER OFF).

(b) When the operation is stopped by the emergency operation.

(c) When the ON-TIMER is on standby.

(6) Dew prevention

During COOL or DRY operation at Vane Angle 4 or 5 when the cumulative operation time of compressor exceeds 1 hour, the vane angle automatically changes to Angle 1 for dew prevention.

(7) SWING MODE ( )

By selecting SWING mode with the VANE CONTROLbutton, the horizontal vane swings vertically. The remote controller displays “ ”.

(8) Cold air prevention in HEAT operation

When any of the following conditions occurs in HEAT operation, the vane angle changes to Angle 1

automatically to prevent cold air blowing on users.

① Compressor is not operating.

➁ Defrosting is performed.

➂ Indoor coil thermistor RT12 reads 24: or below.

➃ Indoor coil thermistor RT12 temperature is raising from 24°C or below, but it does not exceed 28:.

Indoor coil thermistor RT12 temperature

NOTE: If the temperature of RT12 reads from 27: to 28: at the air conditioner starting, this control works.

(9) ECONO COOL ( ) operation (ECONOmical operation)

When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set 2°C higher than that in COOL mode. Also the horizontal vane swings in various cycle according to the temperature of indoor heat exchanger(RT12). SWING operation makes you feel cooler than set temperature. So, even though the set temperature is higher than that in COOL mode, the air conditioner can keep comfort. As a result, energy can be saved. ECONO COOL operation is cancelled when the ECONO COOL button is pressed once again or VANE CONTROL button is pressed or change to other operation mode.

NOTE : ECONO COOL operation not work in COOL mode of “I FEEL CONTROL”.

SWING operation

In swing operation of ECONO COOL operation air flow is initially blew out upward(levelly). According to the temperature of indoor coil thermistor RT12 at starting of this operation, next downward blow time is decided. Then when the downward blow has been finished, next upward blow time is decided. For initial 10 minutes the swing operation is performed in table G~H for quick cooling(but G : RT 12 is 24: or less). Also, after 10 minutes when the difference of set temperature and room temperature is more than 2:, the swing operation is performed in table D~H for more cooling(but D: RT12 is 20: or less). The air conditioner repeats the swing operation in various cycle as follows.

Temperature of indoor

coil thermistor RT12

A B

C

D E F

G

H

15°C or less 15°C to 17°C

17°C to 18°C

18°C to 20°C

20°C to 21°C 21°C to 22°C 22°C to 24°C

more than 24°C

Downward blow time

(sec.)

2 5 8

11 14 17

20 23

Upward(level) blow time

(sec.)

23 20 17 14 11

8

5 2

30

9-7. TIMER OPERATION

PM

AM

PM

1. How to set the timer

(1) Press OPERATE/STOP (ON/OFF) button to start the air conditioner. (2) Check that the current time is set correctly.

NOTE : Timer operation will not work without setting the current time. Initially “AM0:00” blinks at the current time display of

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

(3) Press TIMER CONTROL button to select the operation.

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

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

HR. and MIN. button will work when “ ” or “ ” mark is flashing. These marks disappear in 1 minute. After setting the ON timer, check that OPERATION INDICATOR lamp of the indoor unit lights.

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

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

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

• Apower failure occurs.

•The circuit breaker functions.

2. Cancel

TIMER setting can be cancelled with the ON/OFF TIMER buttons. To cancel the ON timer, press the “ON-TIMER” button. To cancel the OFF timer, press the “OFF-TIMER” button. TIMER is cancelled and the display of set time disappears.

PROGRAM TIMER

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

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

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

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

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

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

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

31

EMERGENCY OPERATION switch

Press once <Cool>

Press again <Heat>

Press once again <Stop>

OPERATION INDICATOR lamp

9-8. EMERGENCY-TEST OPERATION

In case of test run operation or emergency operation, use the EMERGENCY OPERATION switch on the front of the indoor unit. Emergency operation is available when the remote controller is missing, has failed or the batteries of remote controller run down. The unit will start and the OPERATION INDICATOR lamp will light. The first 30 minutes of operation is the test run operation. This operation is for servicing. The indoor fan speed runs at High speed and the system is in continuous operation. (The thermostat is ON.) After 30 minutes of test run operation the system shifts to EMERGENCY COOL / HEAT MODE with a set temperature of 24°C. The fan speed shifts to Med. speed. The coil frost prevention works even in emergency operation, and defrosting too.

In the test run or emergency operation, the horizontal vane operates in VANE AUTO ( ) mode. Emergency operation continues until the EMERGENCY OPERATION switch is pressed once or twice or the unit receives any signal from the remote controller. In case of latter normal operation will start.

NOTE : Do not press the EMERGENCY OPERATION switch during normal operation.

32

10

Jumper wire

JPC

Defrost interval time changes from 40 minutes to 15 minutes.

MUH-C18TV -

Model Change point

E1

MUH-C24TV -

Jumper wire

JRF

Defrost interval time changes from 40 minutes to 15 minutes.

E1

Model Change point

SERVICE FUNCTIONS

MSH-C18TV MSH-C24TV -

E1

MUH-C18TV -

E1

MUH-C24TV -

E1

10-1. COMPULSORY DEFROST MODE FOR SERVICE

By short circuit of the JP607 and R853(MSH-C18TV)/JPG1 and R871(MSH-C24TV) on the outdoor deicer P.C. board,

defrosting mode can be accomplished regardless of the defrost interval restriction. (Refer to page 45 or 46.)

Defrost thermistor RT61 must read below -2.7°C(MSH-C18TV)/ -2.0°C(MSH-C24TV).

10-2. CHANGE IN DEFROST SETTING

MSH-C18TV

<JPC> When the JPC wire of the deicer P.C. board is cut, the defrost interval time will be changed. (Refer to page 45.)

MSH-C24TV

<JRF> When the JRF wire of the deicer P.C. board is cut, the defrost interval time will be changed. (Refer to page 46.)

10-3. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. board. The time will be shortened as follows. Set time : 1 minute ➔ 1-second

Set time : 3 minute ➔ 3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is

shortened by short circuit of JPG and JPS.)

10-4. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

A maximum of 4 indoor units with wireless remote controllers can be used in a room. In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be

modified according to the number of the indoor unit.

How to modify the remote controller P.C. board

Remove batteries before modification. The board has a print as shown below :

NOTE : For remodelling, take out the bat-

teries and push the OPERATE/STOP(ON/OFF)button twice or 3 times at first. After finish remodelling, put back the batteries then push the RESET button.

The P.C. board has the print “J1” and “J2”. Solder “J1” and “J2” according to the number of indoor unit as shown in Table 2. After modification, push the RESET button.

33

JR06

CN102

CN151

CN112 CN111CN121

CN101

BZ

SW

52C

IC101 RA102

IC141

CN211

C11CN201

Table 1

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

1 unit operation No modification

– – –

2 units operation

Same as at left

Solder J1

– –

3 units operation

Same as at left Same as at left

Solder J2

–

4 units operation

Same as at left Same as at left Same as at left

Solder both J1 and J2

NOTE : At power supply failure or installation, indoor unit deletes the memory about remote controller. When the power supply

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

10-5. AUTO RESTART FUNCTION

When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fan speed are memorized by the indoor electronic control P.C.board. The “AUTO RESTART FUNCTION” sets to work the moment power has restored after power failure.Then, the unit will restart automatically. However if the unit is operated in “I FEELCONTROL” mode before power failure, the operation is not memorized. In “I FEEL CONTROL” mode, the operation is decided by the initial room temperature.

How to set “AUTO RESTART FUNCTION”

1Turn off the main power for the unit. 2Pull out the electronic control P.C. board and the

display P.C.board. (Refer to page 47.)

3Cut the RESISTOR JR06 on the indoor electronic

control P.C.board. (Refer to page 44 .)

Operation

1If the main power (230V AC) has been cut, the operation settings remain. 2After the power is restored, the unit restarts automatically according to the memory.(However, it takes at least 3 minutes

for the compressor to start running.)

NOTE

•The operation settings are memorized when 10 seconds have passed after the remote controller was operated with the

remote controller.

•If main power is turned off or a power failure occurs while AUTO START/STOP timer is active ,the timer setting is

cancelled.

•If the unit has been off with the remote controller before power failure, the auto restart function does not work as the

power button of the remote controller is off.

•To prevent breaker off due to the rush of starting current, systematize other home appliances not to turn on at the same

time.

•When some air conditioners are connected to the same supply system, if they are operated before power failure, the

starting current of all the compressors may flow simultaneously at restart. Therefore, the special counter-measures are required to prevent the main voltage-drop or the rush of the starting current by adding to the system that allows the units to start one by one.

34

11

Lead wiring

Housing point

Insert the negative pole of the batteries first. Check if the polarity of the batteries are correct.

RESET button

TROUBLESHOOTING

MSH-C18TV - MUH-C18TV MSH-C24TV - MUH-C24TV -

E1E1

11-1. Cautions on troubleshooting

1. Before troubleshooting, check the following:

(1) Check the power supply voltage. (2) Check the indoor/outdoor connecting wire for mis-wiring.

2. Take care the following during servicing.

(1) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the 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 36 and the check table on page 37.

4. How to replace batteries

Weak batteries may cause the remote controller malfunction. In this case, replace the batteries to operate the remote controller normally. 1 Remove the front lid and insert batteries.

Then re-attach the front lid.

2 Press the RESET button with tip end of ball point

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

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

35

11-2. Instruction of troubleshooting

Start

Indoor unit operates. Outdoor unit doesn't operate.

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

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

Outdoor unit operates in only Test Run operation.

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

Indoor unit operates, when the EMERGENCY OPERATION switch is pressed.

Indoor unit doesn't operate, when the EMERGENCY OPERATION switch is pressed.

Check room temperature thermistor. Refer to "Test point diagram and voltage" on page 44.

Refer to D "Check of outdoor unit" on page 40 or 41.

Refer to B "Check of remote controller and receiver P.C. board" on page 39.

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

• Mis-wiring

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

6-time flash Cause: Outdoor unit

• Trouble of thermistor in outdoor unit

Refer to G "How to check mis-wiring and sirial singal error (When outdoor unit doesn't operate)" on page 43. ❈1

Check room temperature thermistor and indoor coil thermistor. Refer to "Test point diagram and voltage" on page 44.

1-time flash Cause: Indoor/ Outdoor unit

• Trouble of serial signal

Refer to A "Check of indoor fan motor" on page 39.

MSH-C24TV only

7-time flash Cause: Outdoor unit

• Trouble of outdoor unit control system

Replace the deicer P.C. board.

1. Check indoor / outdoor connecting wire.

2. Refer to C "Check of indoor electronic control P.C. board" on page 40.

MSH-C24TV only Outdoor unit doesn't stop even if indoor unit stops.

Refer to E "Check of outdoor unit" on page 41.

Refer to H "Check of outdoor thermistor" on page 43.

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

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

Refer to F "Check of R.V. coil" on page 42.

❈1<The case of the trouble of the serial signal>

When the power is turned off and then turned on again, the indication shows “the trouble of miswiring.”

36

1. Troubleshooting check table

Operation Indicator

flashing

· Flashing of the OPERATION INDICATOR lamp (on the left-hand side) indicates possible abnormalities.

· The OPERATION INDICATOR lamp (on the left-hand side) is lighting during normal operation.

•The following indication does not depend on the shape of lamp.

Before taking measures, make sure that the symptom reappears, for accurate troubleshooting. Self check table

Abnormal

NO.

point

Indication

Symptom

Detect method

Check point

Mis-wiring

1

Serial signal

Indoor coil thermistor

2

Room temperature thermistor

Indoor fan

3

motor

0.5-second ON

0.5-second OFF

1-time flash

2.5-second OFF

2-time flash

2.5-second OFF

3-time flash

2.5-second OFF

Outdoor unit does not run.

Indoor fan motor repeats 12 seconds ON and 3 minutes OFF. When the indoor fan motor breaks, the fan keeps stopping.

When serial signal stops for 4 to 5 seconds after 1st on of 52C contactor by POWER turning on.

When serial signal from outdoor unit stops for 4 to 5 seconds.

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

When rotational frequency feedback pulse signal is not emit during 12-second indoor fan operation.

● Check wiring (visual check and conductivity check).

● Check indoor electronic control P.C.board.

● Check deicer P.C. board.

● Check electrical parts.

● Check resistance of thermistor.

● Re-connect connector.

● Check indoor electronic control P.C.board.

● Disconnect connector CN211 and then

check connector CN121 - to make sure rotational frequency feedback signal of 1.5V or over exists.

● Check indoor electronic control P.C.

board.

● Check indoor fan motor.

● Re-connect connector.

2

3

6-time flash

Outdoor

4

thermistor

2.5-second OFF

MSH-C24TV

only

Outdoor

5

control system

7-time flash

2.5-second OFF

Outdoor unit does not run

When the defrost thermistor shorts or opens after the compressor start-up.

When nonvolatile memory data cannot be read properly on deicer P.C. board, outdoor unit stops and restarts 3 minutes later.

37

● Check deicer P.C. board.

● Check resistance of thermistor.

● Re-connect connector.

● Replace deicer P.C. board.

2. Trouble criterion of main parts

P

~

BLK

R

MAIN

AUX.

RED

S

C

WHT

MAIN

AUX.

BLK

MSH-C18TV

MSH-C24TV

RED

WHTORN

P

C

RED ORN WHT

YLW

BLK

MAIN

AUX.1 AUX.2

YLW

RED

BLU

ORN

PNK

ROTOR

:INNER PROTECTOR

P

MAIN

AUX.

FUSE

BLK

RED

WHT

GRY

YLW

BRN

MSH-C18TV - MUH-C18TV MSH-C24TV - MUH-C24TV -

Part name

Room temperature thermistor(RT11)

Indoor coil thermistor(RT12)

Defrost

thermistor(RT61) Ambient temperature thermistor(RT63)

Compressor

(MC)

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

Normal

8kΩ ~ 20kΩ

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

Normal

5kΩ ~ 60kΩ

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

MSH-C18TV C-R C-S

0.93 ~ 1.15Ω

1.79 ~ 2.19Ω

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

E1E1

Check method and criterion

Abnormal

Open or short-circuit

Abnormal

Open or short-circuit

Normal

MSH-C24TV

0.59 ~ 0.73Ω

1.78 ~ 2.18Ω

Figure

Abnormal

Open or

short-circuit

Indoor fan motor (MF)

Outdoor fan motor (MF)

Normal

Motor partSensor part

WHT-BLK BLK-RED

176 ~ 192Ω 240 ~ 261Ω

Measure the voltage Power ON.

Normal

BRN-YLW

YLW-GRY

4.5 ~ 5.5V

(When fan revolved one time)

0V➔5V➔0V

(Approx.)

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

Normal

WHT-BLK

BLK-RED BLK-YLW

YLW-RED

MSH-C18TV

102 ~ 126Ω

97 ~ 120Ω

– –

MSH-C24TV

55 ~ 68Ω

– 26 ~ 33Ω 55 ~ 68Ω

Abnormal

Open or

short-circuit

Abnormal

Remain 0V or 5V

Abnormal

Open or

short-circuit

Vane motor (MV)

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

Normal

RED-other one

358 ~ 388Ω

Abnormal

Open or short-circuit

38

A

Check of indoor fan motor

Indoor fan motor does not operate.

No

Re-connect the lead wires.

Check of remote controller and receiver P.C. board

B

Are lead wires connected?

Disconnect lead wires from connector CN211 on the indoor electronic control P.C. board. Measure resistance between lead wires No.1 and No.4 and then No.1 and No.2.

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

Repair or replace the indoor fan motor.

Turn OFF the power supply. Check connector CN211 visually.

Yes

Yes ( 0 or ∞ )

Is soldered point normal?

No

Yes

Insert screwdriver into air outlet to rotate indoor fan

motor slowly for 1 revolution or over, and measure voltage No.2(+) and No.3(-) on CN121.

No

(others)

No

Does voltage repeat 0V DC and 5V DC?

Yes

Replace the indoor electronic control P.C. board.

Re-solver it.

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

w Check if the remote controller is exclusive for this air conditioner.

Switch on the remote controller.

Is LCD display on the the remote controller visible?

Yes

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

Does the unit operate with the remote controller?

Yes

OK

No (not clear)

No

Measure the voltage between receiver P.C. board connector No.2(+) and No.1 when the remote controller button is pressed.

Replace the batteries.(Refer to page 35.)

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

Is noise heard from radio?

Yes

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

No

Yes

Replace the remote controller.

● Re-install the unit away from lights.

● Attach a filter on receiving part.

Is the voltage approx. 4V DC?

No(5V or 0V DC)

Replace the receiver P.C. board.

39

Yes

Replace the indoor electronic control P.C. board.

Check of indoor electronic control P.C. board

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

Replace the fuse.

Is fuse(F11) blown?

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

Replace the fan motor.

Replace the indoor electronic control P.C. board.

Is winding resistance of fan motor 0 "?

Is winding resistance of vane motor 0 "?

No

Yes

Replace the vane motor.

No

Yes

Is varistor(NR11) burnt?

Replace the varistor.

Yes

Turn OFF the power supply. Remove indoor fan motor connector CN211 and vane motor connector CN151 from the indoor electronic control P.C. board and turn ON the power supply.

No

Does the unit operate with the remote controller? Does the OPERATION INDICATOR lamp light up by pressing the EMERGENCY OPERATION switch?

Yes

No

Measure the resistance between CN201

1 on the

indoor electronic control P.C. board and

N on the terminal

block with the tester.

Is resistance approx. 0"?

Replace the fuse (F12).

CN201

1 2

N

F12

1

3

Terminal block

Be sure to check both resistance.

No(∞)

Yes

Turn OFF the power supply.

C

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

D

Check of outdoor unit

Compressor and / or outdoor fan motor doesn’t operate.(Only indoor fan operates.) MSH-C18TV

Start

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

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

2 N

- ?

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

N

2

- ?

No

Replace the indoor electronic control P.C. board.

Yes

Check the continuity of indoor and outdoor unit connection.

40

Check the outdoor deicer P.C. board at first, then check the outdoor fan motor and the compressor.

MSH-C24TV

Yes

Is there 5V DC between J101

- J401 on the deicer

P.C. board? Refer to page 46.

Compressor doesn't operate.

Yes

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. Test run operation operates for 30 minutes.

Outdoor fan motor doesn't operate.

No

Make the connection of wiring correct.

Check the compressor.

Replace the compressor contactor(52C).

Start

Yes

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

Yes

Is there 230V AC between CN730 1-3 on 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

Make the connection of wiring correct.

Yes

Is there 230V AC CN711 1-3 or 2-3 on the deicer P.C. board?

No

Make the connection of wiring correct.

Check the outdoor fan motor. Refer to page 38.

Yes

Replace the deicer P.C. board.

No

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

Is there 5V DC between J101 - J401 on the deicer P.C. board? Refer to page 46.

+

-

+

-

After 30 seconds, does compressor stop?

No

Yes

Is there 230V AC between A1-A2 on the compressor contactor(52C)?

Replace the deicer P.C. board.

Yes

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 for 1 minute or more. 4 Stop it by pressing the EMERGENCY OPERATION switch twice or once.

Ok

No

After 30 seconds, does outdoor fan motor stop?

Replace the deicer P.C. board.

Yes

Ok

No

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

Yes Replace the compressor contactor(52C).

No

Make the connection of wiring correct.

E

Check of outdoor unit

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

<MSH-C24TV only>

41

Check of R.V. coil

F

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

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.

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

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 COOL 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 deicer P.C. board.

No

Replace the R.V. coil.

42

How to check mis-wiring and serial signal error

Measure resistance between CN 661 1 and 2.

Measure resistance between CN 662 3 and 4.

No

Yes

Replace the thermistor.

Defrost thermistor (RT61)

Re-connect CN661 and CN662. Turn ON the power supply and press the EMERGENCY OPERATION switch.

Ambient temperature thermistor (RT63)

Does the resistance of thermistor have the characteristics on page 45 or 46?

No

Yes

Does the unit operate 10 minutes or more?

Replace the deicer P.C.

board.

Ok ❈3

❈3 It is thought defective contact of the connector.

Turn OFF the power supply.

<MSH-C24TV only>

G

Outdoor unit doesn’t operate.

Repair wiring.

Is there 20V DC between both ends of R132 when 52C contactor turns ON? ( By tester, the stylus is between 0 ~ 20V. )

1. Turn OFF the power supply.

2. Re-connect in-out connecting wire.

3. Turn ON the power supply.

Yes

1. Turn OFF the power supply and disconnect in-out connecting wire on the indoor side.

2. Short-circuit between indoor terminal block and .

3. Turn ON the power supply and press the EMERGENCY OPERATION switch.

Yes

Start

1. Turn OFF the power supply.

2. Turn ON the power supply.

3. Press the

3 min. later, when 52C contactor turns ON, what self-check result is displayed on OPERATION INDICATOR lamp on the indoor unit? ❈1

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

EMERGENCY OPERATION

No

switch.

Mis-wiring is indicated.(0.5-sec.ON, 0.5-sec.OFF)

3

N

❈1 Short circuit of JPG and JPS on the

indoor electronic control P.C. board enables self-check to be displayed in 3 seconds.

Serial signal error is indicated. (0.5-sec.ON, 2.5-sec.OFF)

Replace the indoor electronic control P.C. board.

Thermistors in the outdoor unit are abnormal.

W Disconnect the connector CN661 and CN662 from the deicer P.C. board.

3 minutes later, when the EMERGENCY OPERATION switch is pressed and 52C contactor turns ON, is there 230V AC between the

outdoor terminal block - ? ❈2

Is there 5V DC between J8 -J9 (MSH-C18TV) / J401 - J101 (MSH-C24TV) on the deicer P.C. board?(Refer to page 45 or 46.) ❈2

Is there 10V DC between both ends of R601?(Refer to page 45 or 46.) ❈2 (By tester, the stylus is between 5 ~10V)

H

Check of outdoor thermistor

+

–

Replace the deicer P.C. board.

N

2

Yes

+

–

Yes

No

(Check the characteristics of each thermistor.)

43

No

Rectify in-out connecting wire.

Check and rectify the fuse and the varistor on the deicer P.C. board.

Rectify in-out connecting wire.

❈2 While the serial signal error is indicated,

52C contactor alternates ON for about 10 seconds and OFF for 3 minutes. Measure the voltage when 52C contactor is ON.

TEST POINT DIAGRAM AND VOLTAGE MSH-C18TV MSH-C24TV -

E1 E1

Fan motor CN211

Fuse(F11)250V AC 3.15A

Power supply input 230V AC

}

R132

0~20V DC

Auto restart function Cut the Resistor JR06. (Refer to page 34.)

+

C144

Room temperature thermistor(RT11)

Indoor coil thermistor(RT12) JPS

Timer short mode point

}

JPG

Emergency operation switch

JPG

+

JP41

Resistance(k")

}

12V DC

}

5V DC

P.C.board

44

MUH-C18TV -

E1

Outdoor deicer P.C. board

Fan motor CN711 230V AC

}

R.V. coil

230V AC

}

R601 5~10V DC (Refer to page 43.)

}

+

230V AC

}

CN661 Defrost thermistor(RT61) (Refer to page 43.)

}

IC881

12V DC

Fuse (F61) 2A/250V

Defrost interval time short pin (JP607, R853) (Refer to page 33.)

+

J9

5V DC

}

J8

(Refer to page

43.)

+

}

52C

12V DC

Jumper wire for change in defrost setting (JPC) (See page 33.)

45

MUH-C24TV -

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")

E1

Outdoor deicer P.C. board

CN661 1-2 Defrost thermistor (RT61)

(Refer to page 43.)

Defrost interval time short pin(JPG1, R871) (Refer to page 33.)

(Refer to page 41 and 43.)

+

J101

}

5V

DC

J401

Jumper wire for change in defrost setting (JRF) (Refer to page 33.)

CN662 3-4 Ambient temperature thermistor (RT63) (Refer to page 43.)

46

Fan motor CN711

Varistor NR62

R.V. coil

}

230V AC

+

12V DC

}

Fuse(F61)

3.15A / 250V

Varistor NR61

CN7301-3

}

230V AC

(Refer to page 41.)

R601

}

10V DC

+

(Refer to page 43.)

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

NOTE:

DISASSEMBLY INSTRUCTIONS

12-1. MSH-C18TV - MSH-C24TV -

E1E1

INDOOR UNIT

OPERATING PROCEDURE

1. Removing the front panel

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

Remove the screws.

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

catches at the top.

2. Removing the electronic control P.C. board, the receiver P.C. board and the display P.C. board

(1) Remove the front panel. (Refer to 1) (2) Remove the electrical cover. (3) Remove the screw of the terminal cover. (4) Remove the screw of the terminal block. (5) Unhook the catch of the lamp holder. (6) Remove the receiver holder and the receiver P.C. board. (7) Remove the screw of the ground wire. (8) Disconnect all the connectors and all the lead wires on the

electronic control P.C. board.

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

board.

Photo 1

Photo 2

PHOTOS

Front panel

Screws

47

Lamp holder

Display P.C. board

Receiver P.C. board

Screw of the terminal block

Indoor electronic control P.C. board

Receiver holder

OPERATING PROCEDURE

PHOTOS

3. Removing the electrical box

(1) Remove the front panel. (Refer to 1) (2) Remove the electrical cover. (3) Disconnect the connector of the indoor coil thermistor. (4) Disconnect the motor connector (CN211 and CN121) and

the vane motor connector (CN151) on the electronic control P.C. board.

(5) Remove the screw of the electrical box, remove the electri-

cal box.

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

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

bly. (4) Remove the nozzle assembly. (5) Remove the screws of the bearing support. (6) Remove the screw of the heat exchanger unhook the

catch. (7) Lifting the heat exchanger, remove the bearing support. (8) Loose the screw fixing the line flow fan, remove the line

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

motor.

Photo 3

Photo 4

Catch

Screw of the heat exchanger

Screw of the bearing support

Screw of the

ground wire

Screw of the electrical box

Heat exchanger

48

Photo 5

Line flow fan

Indoor fan motor

Screws of the motor band

Screw of the motor bands

12-2. MUH-C18TV -

E1

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the cabinet

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

the cabinet.

Photo 1

Photo 2

Screws

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

Service panel

Photo 3

Deicer P.C. board

49

Compressor

Terminal block (TB)

capacitor (C1)

OPERATING PROCEDURE PHOTOS

3. Removing the outdoor fan motor

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

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

Photo 4

Propeller fan

Set screws of the outdoor fan motor

Lead clamps

4. Removing the compressor

(1) Remove the cabinet. (Refer to 1) (2) Remove the soundproof felt. (3) Remove the terminal cover on the compressor. (4) Remove the electrical assembly.

(Refer to 2) (5) Recover gas from the refrigerant circuit. (6) Disconnect the welded part of the discharge pipe. (7) Disconnect the welded part of the suction pipe. (8) Remove nuts fixing the compressor. (9) Remove the compressor.

Propeller fan nut

Photo 5

Terminal cover

Compressor

Set screws of the outdoor fan motor

Discharge pipe

Outdoor fan motor

Suction pipe

50

Compressor nuts

12-3. MUH-C24TV -

E1

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the cabinet

(1) Remove the screws of the top panel and the top panel. (2) Remove the screw of the service panel. To remove the

service panel, pull it down toward you and unhook the catches on the both sides.

(3) Remove the screw of the cover panel. To remove the

cover panel.

(4) Remove the screws of the cabinet.

Open the cabinet to a 45-degree angle. Then lift it and unhook the catches to remove.

Photo 1

Cabinet

Photo 2

Screws of the top panel

Top panel

Service panel

Cover panel

2. Removing the deicer P.C. board

(1) Remove the top panel, the service panel and the cover

panel.

(2) Disconnect all the connectors and the terminals on the

deicer P.C. board.

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

3. Removing the propeller fan and the outdoor fan motor

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

NOTE:Loose the propeller fan in the rotating direction for

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

(3) Remove the screws and the outdoor fan motor and the

connectors. Remove the outdoor fan motor.

Photo 3

Terminal block

Photo 4

Propeller fan

Propeller fan nut

Screws of the cabinet

Deicer P.C. board

Motor support

Compressor contactor (52C)

Separator support plate

Separator

Valve bed

51

OPERATING PROCEDURE PHOTOS

4. Removing the heat exchanger and compressor

(1) Remove the screws of the rear panel. Remove the screws

of the valve bed and the valve bed. (The valve bed is fixed by the catches on the right and left sides. Lift it to remove.) Open the rear panel to the rear to remove.

NOTE :

All panels are fixed by catches, and must be removed by up and down.

(2) Remove the screws of the side panel and the side panel. (3) Remove the screws of the rear guard and the rear guard. (4) Remove the screws of the separator support plate and

the separator support plate.

(5) Remove the screws of the motor support and the motor

support.

(6) Remove the relay panel.

Disconnect the fan motor lead wires.

(7) Remove the soundproof felt. (8) Remove the screws of the separator and the separator. (9) Recover gas from the refrigerant circuit. (10)

Remove the screws of the heat exchanger and the heat exchanger. Detach the welded part of pipe.

(11)

Remove the nuts of the compressor and the compressor.

Detach the welded part of the suction pipe and the discharge pipe.

Photo 5

Screws

Rear panel

Side panel

Screws

Rear guard

Photo 6

Heat exchanger

52

Photo 7

Stop valve

Compressor

13

Symbol

in Wiring

Diagram

Q'ty/unit

Including 4,5

3PCS/SET

RemarksPart No.

NO.

Part Name

MSH-C18TV-

1 2 3 4 5 6 7

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

(WH)

E1

1 1 1 1 3 2 1

MSH-C24TV-

(WH)

E1

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

PARTS LIST

MSH-C18TV - (WH) MSH-C24TV - (WH)

E1

13-1. INDOOR UNIT

STRUCTURAL PARTS

1

2

3

4

5

13-2. INDOOR UNIT

HEAT EXCHANGER

8

Optional parts (See page 58.)

6

910

13-1. INDOOR UNIT STRUCTURAL PARTS

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

13-2. INDOOR UNIT HEAT EXCHANGER

E02 141 620

8

E02 138 667

9

E02 176 667 E02 138 666

10

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

53

1 1

1

1 1

{6.35 {9.52 {15.88

1 2 3 4 5 6 7 8

9

10 11

12 13

14 15

16 17 18

19

20

NO.

E02 141 302 E02 001 504 E02 141 509 E02 408 702 E02 143 235 E02 143 040 E02 138 307 E02 141 303 E02 138 395 E02 320 395 E02 581 375 E02 540 375 E02 138 308 E02 141 468 E02 581 452 E02 582 452 E02 141 300 E02 213 300 E02 001 505 E02 138 329 E02 336 385 E02 127 382 E02 205 381 E02 209 381 E02 138 383 E02 147 383

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

Part No.

Symbol

in Wiring

Diagram

Part Name

RT12

MV

TB TB

RT11

MF MF

NR11

F11 F12

F12 DSAR DSAR

Q'ty/unit

MSH-C18TV-

1 1 1 1 1 1 1 1 1

1

1 1 1

1

2 1 1 1 1

1

1 1 1 1 1 1 1 1

1

1 1 1

1

1 2 1 1 1

1

(WH)

E1

MSH-C24TV-

(WH)

E1

AUTO RESTART AUTO RESTART RA4V27 RA4V27 2PCS/SET

3.15A 93: 93:

Remarks

MSH-C18TV - (WH)

E02 581 426 E02 527 083

21 22

REMOTE CONTROLLER REMOTE CONTROLLER HOLDER

1 1

MSH-C24TV - (WH)

E1

13-3. INDOOR UNIT

FUNCTIONAL PARTS AND ELECTRICAL PARTS

1

SLEEVE BEARING

2

3

16

15

13-4. ACCESSORY P ARTS

AND REMOTE CONTROLLER

13

21 22

4

14

5

7

12

6

INDOOR COIL THERMISTOR

8

10

9

11

ROOM TEMPERATURE THERMISTOR

13-3. INDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS

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

54

13-4. ACCESSORY PARTS AND REMOTE CONTROLLER

MUH-C18TV -

E1

13-5. OUTDOOR UNIT

STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTS

1

DEFROST THERMISTOR

18

15

17

16

2

4

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

Part No. Part Name

NO.

E02 140 233

1

E02 141 232

2

E02 141 521

3

E02 643 630

4

E02 141 501

5

E02 139 515

6

E02 138 506

7

E02 516 900

8

E02 277 290

9

E02 624 661

10

E02 621 662

11

E02 141 245

12

E02 444 961

13

E02 277 353

14

E02 144 301

15

E02 540 374

16

E02 643 451

17

E02 440 310

18

E02 004 340

19

E02 339 936

20

E02 624 936 E02 095 382

21

E02 139 490

22

E02 128 383

23

E02 214 642

24

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

653

Symbol

in Wiring

Diagram

MC

C1

MF

TB

RT61

52C

F61

21S4

DSAR

7

MUH-C18TV-

8

Q'ty/unit

1 1 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1

14

13

12

11 10

9

E1

Remarks

4RUBBERS/SET PE-36VPEHT

{15.88 { 6.35

55+/420V AC RA6V50 4P

{3.0✕{1.4✕600 {3.0✕{2.0✕850

250V / 2A

55

MUH-C24TV -

E1

13-6. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

28

1

2

3

4

5

6

7

27

10

11 12

26

8

25

24

23

22

2

13

8

9

14

17

15

16

18

19

21

20

56

MUH-C24TV -

E1

13-6. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS

AND FUNCTIONAL PARTS

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

Q'ty/unit

MUH-C24TV -

1 1 1 1 1 1 1 3 1 1 1 1 4 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

Part No.

NO.

1

E02 214 297

2

E02 578 309

3

E02 644 630

4

E02 214 301

5

E07 214 501

6

E02 214 290

7

E02 214 232

8

E07 001 009

9

E02 527 521

10

E02 444 961

11

E02 529 490

12

E02 529 310

13

E02 138 506

14

E02 517 900

15

E02 644 662

16

E02 644 661

17

E02 214 245

18

E07 001 006

19

E02 540 374

20

E02 138 351

21

E02 128 383

22

E02 010 342

23

E02 082 353

24

E02 644 451

25

E02 214 522

26

E02 605 523

27

E02 214 249

28

E02 527 515

29

E02 127 382

30

E02 214 384

31

E02 644 936

Part Name

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

Symbol

in Wiring

Diagram

RT63

MF

21S4 RT61

MC

TB C2

DSAR

52C

C1

F61

CZ

E1

Remarks

RA6V85-

4RUBBERS/SET NE-47VMHHT

{9.52 {15.88

4P

3.0+/440V AC

50+/440V AC

250V/3.15A

{3.0O{2.0O450

57

Deodorizing filter (Gray sponge type)

,

Air cleanig filter (White bellows type)

Model

Part No.

MAC-1100FT

MSH-C18TV-

E1

MSH-C24TV-

E1

Model

Part No.

MAC-1600DF

MSH-C18TV-

E1

MSH-C24TV-

E1

MUH-C18TV MUH-C24TV -

E1

13-7. ACCESSORY PARTS

1

2

1

2 1

Q'ty/unit

E1

MUH-C24TV-

E1

1 6

[33 [16

NO.

E02 444 704

1

E02 329 704 E02 444 705

2

E02 444 706

14

Part No.

DRAIN SOCKET DRAIN SOCKET DRAIN CAP DRAIN CAP

Part Name

OPTIONAL PARTS

Symbol

in Wiring

Diagram

MUH-C18TV-

14-1. AIR CLEANING FILTER

● AIR CLEANING FILTER removes fine dust of 0.01 micron from air by means of static electricity.

● Normal life of AIR CLEANING FILTER is 4 months. However, when it becomes dirty, replace it as soon as possible.

● Clogged AIR CLEANING FILTER may reduce the air conditioner capacity or cause frost on the air outlet.

● DO NOT reuse AIR CLEANING FILTER even if it is washed.

● DO NOT remove or attach AIR CLEANING FILTER during unit operation.

Remarks

14-2. DEODORIZING FILTER

● DEODORIZING FILTER removes ammonia and hydrogen sulphide emitted from tobacco, and odor of pets.

● Clean DEODORIZING FILTER every two weeks. If the filter is particularly dirty, clean the filter more often.

● For cleaning, soak the filter in warm water for a while, and then wash and rinse it. Dry the filter in the shade 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.

58

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

CC

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

Mitsubishi MSH-C18TV-E1, MSH-C24TV-E1, MUH-C18TV-E1, MUH-C24TV-E1 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual