Mitsubishi MCFH-A12WV- E1 (WH), MCFH-A18WV- E1 (WH), MCFH-A24WV- E1 (WH) Service Manual

SERVICE MANUAL

(When installed on the ceiling)

(When installed on the floor)

FLOOR AND CEILING TYPE AIR CONDITIONERS

Wireless type Models

(WH)

MCFH-A12WVMCFH-A18WV-

E1

(WH)

Revision A:

● Power input of SPECIFICATION has modified.

● Model name of remote controller has been

added to PARTS LIST.

Please void OB336.

No. OB336

REVISED EDITION-A

MCFH-A24WV-

Indication of model name

MCFH-A12WVMCFH-A18WVMCFH-A24WV-

E1

(WH)

CONTENTS

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

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

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

4. NOISE CRITERIA CURVES·······························5

E1

5. OUTLINES AND DIMENSIONS·························6

E1

6. WIRING DIAGRAM ············································7

E1

7. REFRIGERANT SYSTEM DIAGRAM················8

8. SERVICE FUNCTIONS ······································9

9. TROUBLESHOOTING ······································11

10. DISASSEMBLY INSTRUCTIONS·····················19

11. PARTS LIST ······················································21

12. OPTIONAL PARTS ···········································23

NOTE:

• This manual describes technical data of indoor units

• As for outdoor units MUCFH-A18/A24WV- , refer to the service manual OB337 REVISED EDITION-A.

• As for outdoor unit MUH-A12YV- , refer to the service manual OB331 REVISED EDITION-A.

• As for outdoor units MXZ-A18/A26/A32WV- , refer to the service manual OB319.

E1

(When installed on the floor)

(When the air inlet grille is opened.)

Deodorizing filter (gray sponge type)(option)

Air filter

Air inlet

Operation section

Air cleaning filter (white bellows type)(option)

Front panel

Receiving section

Operation indicator lamp

Horizontal vane

Vertical vanes

Emergency operation switch

(When installed on the ceiling)

ACCESSORIES

Item

Installation plate Unit fixing screw 5 o 12mm Wireless remote controller Remote controller mounting hardware Fixing screw for

3.5 o 16mm (Black) Battery (AAA) for remote controller Drain hose Drain pipe cover Knockout cover Screw for 4 o 10mm

2 2

1

1 2 2

1 1 1 2

Q'ty

Remote controller

Revision A:

•Power input of SPECIFICATION has modified.

•Model name of remote controller has been added to PARTS LIST.

1

MCFH-13NV- ➔ MCFH-A12WV-

1. Rated voltage has changed. (220-240V ➔ 230V)

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

3. Horizontal vane has changed.

4. Terminal block has changed.

5. Indoor heat exchanger has changed.

6. Remote controller has changed. Econo cool operation has been added.

7. Indoor fan motor has changed. (RB4V25-AB ➔ RB4V25-AC)

MCFH-24NV- ➔ MCFH-A24WV-

1. Rated voltage has changed. (220-240V ➔ 230V)

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

3. Horizontal vane has changed.

4. Terminal block has changed.

5. Indoor heat exchanger has changed.

6. Remote controller has changed. Econo cool operation has been added.

7. Liquid of union has changed. ({9.52 ➔ {6.35)

8. Indoor fan motor has changed. (RB4V36-AB ➔ RB4V36-DB)

2

TECHNICAL CHANGES

E1E4

E1E3

PART NAMES AND FUNCTIONS

MCFH-18NV- ➔ MCFH-A18WV-

1. Rated voltage has changed. (220-240V ➔ 230V)

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

3. Horizontal vane has changed.

4. Terminal block has changed.

5. Indoor heat exchanger has changed.

6. Remote controller has changed. Econo cool operation has been added.

7. Gas of union has changed. ({15.88 ➔ {12.7)

8. Indoor fan motor has changed. (RB4V36-AB ➔ RB4V36-AC)

E1E3

MCFH-A12WV - MCFH-A18WV - MCFH-A24WV -

INDOOR UNIT

E1E1E1

2

MCFH-A12WV -

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

ON/OFF

TOO

COOL

PM

AM

TOO

WARM

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

ON-TIMER button

RESET button

ECONO COOL button

VANE CONTROL button

CLOCK SET button

HR. button

MIN. button

(TIME SET button)

Indication of remote controller model is on back.

MCFH-A18WV MCFH-A24WV -

REMOTE CONTROLLER

E1

3

Indoor model

Function

Power supply

Air flow(High/Med.W/LowW) Power outlet Running current Power input Auxiliary heater Power factor Fan motor current Model

Winding resistance(at20:)

Dimensions WOHOD Weight Air direction Sound level(High/Med.W/LowW) Fan speed(High/Med.W/LowW) Fan speed regulator Thermistor RT11(at25:) Thermistor RT12(at25:) Remote controller model

K /h

A A

W

A(kW)

%

A

"

mm

kg

dB

rpm

k" k"

Electrical

data

Fan

motor

Special

remarks

Capacity

MCFH-A12WV-

E1

MCFH-A18WV-

E1

MCFH-A24WV-

E1

Cooling

—

Heating

—

780/636W/492W

10

0.30 66

96

0.30

RB4V25-AC

WHT-BLK 182.2 BLK-YLW 68.9

YLW-BLU 47.5 BLU-BRN 31.5

BRN-RED 22.9

25

5

46/41W/36W

1,240/1,060/845

3 10 10

KG04C

Cooling

—

Heating

—

Single phase

230V, 50Hz

840/696W/570W

10

0.36 80

97

0.36

RB4V36-AC WHT-BLK 82.9 BLK-YLW 65.6 YLW-BLU 36.0 BLU-BRN 27.0

BRN-RED 13.7

1100 ✕ 650 ✕ 180

25

5

48/44W/39W

1,320/1,145/960

3 10 10

KG04C

Cooling

—

Heating

—

840/744W/642W

10

0.36 80

97

0.36

RB4V36-DB WHT-BLK 84.0 BLK-YLW 46.2 YLW-BLU 37.2 BLU-BRN 45.2

BRN-RED 13.6

25

5

48/45W/42W

1,320/1,190/1,060

3 10 10

KG04C

SPECIFICATION

NOTE: Test conditions are based on ISO 5151

Cooling : Indoor DB27°C WB19°C Heating : Indoor DB20°C WB 15°C

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

Indoor-Outdoor piping length : 5 m

w Reference value

4

NOISE CRITERIA CURVES

MCFH-A12WV -

E1

SPL(dB

SPEED

High

(A)) LINE

46

Test conditions, Cooling : DB 27: WB 19:\

90

Heating : DB 20: WB 15:

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

MCFH-A18WV -

E1

SPL(dB

SPEED

High

(A)) LINE

48

Test conditions, Cooling : DB 27: WB 19:\

90

Heating : DB 20: WB 15:

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

MCFH-A24WV -

E1

SPL(dB

SPEED

High

(A)) LINE

48

Test conditions, Cooling : DB 27: WB 19:\

90

Heating : DB 20: WB 15:

80

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

INDOOR UNIT

MICROPHONE

1m

WALL

5

(When installed on the floor)

(When installed on the ceiling)

50cm or more

100cm or more

650

616.5

80.8 906 112.8

114

16

1100

93

77

113

143

180

17042.5

12.7 (MCFH-A12/A18WV)

15.88 (MCFH-A24WV)

Gas line

6.35

Liquid line

Wireless remote controller

162

19

58

OUTLINES AND DIMENSIONS

MCFH-A12WV MCFH-A18WV MCFH-A24WV -

INDOOR UNIT

E1

Unit: mm

6

WIRING DIAGRAM6

SYMBOL

SR141~SR143

TB1, TB2

X144

SYMBOL

MV NR11 RT11 RT12

NAME

NAME NAME INDOOR FAN CAPACITOR FUSE (3.15A) DC/DC CONVERTER INDOOR FAN MOTOR(INNER FUSE)

VANE MOTOR VARISTOR ROOM TEMPERATURE THERMIST OR INDOOR COIL THERMISTOR

SOLID STATE RELAY TERMINAL BLOCK RELAY

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. : Connector

: Terminal block

NOTES:

SYMBOL

C11

F11

HIC1

MF

MCFH-A12WV MCFH-A18WV MCFH-A24WV -

INDOOR UNIT

POWER SUPPLY

~/N 230V

50Hz

CIRCUIT BREAKER

TO OUTDOOR UNIT CONNECTING 12V

E1

MODELS WIRING DIAGRAM

E1

TB1

PE

N

L

GRN/YLW

BLU RED

1 2 3

CN201

BRN

TB2

BLU

N

CN CN CN

3

113 151101

5

REMOTE CONTROLLER

DISP/ RECEIVER P.C.BOARD

TAB12

6 5

4

MV

SW/THERMO P.C.BOARD

HIC1

LDCOM

C11

TRANS

F11

ELECTRONIC CONTROL P.C BOARD

RT11

NR11

X144 SR143

SR142 SR141

CN

112

LDC11 LDC12 LDFH LDFM LDFL LDFVL

2

WHT ORN RED BLK YLW BLU BRN

WHT

1

ORN

2

RED

3

BLK

4

YLW

5

BLU

6

BRN

7 8

GRN/YLW

RT12

MF

7

REFRIGERANT SYSTEM DIAGRAM7

MCFH-A12WV-

INDOOR UNIT

E1

Refrigerant pipe [12.7 (with heat insulator)

MCFH-A18WV-

INDOOR UNIT

Unit : mm

E1

Refrigerant pipe [12.7 (with heat insulator)

Indoor heat exchanger

Indoor coil thermistor RT12

Room temperature thermistor RT11

Distributor

MCFH-A24WV-

Flared connection

Refrigerant pipe [6.35 (with heat insulator)

E1

Indoor heat exchanger

Indoor coil thermistor RT12

Room temperature thermistor RT11

Distributor

Flared connection

Refrigerant pipe [6.35 (with heat insulator)

INDOOR UNIT

Indoor heat exchanger

Indoor coil thermistor RT12

Room temperature thermistor RT11

Distributor

Refrigerant pipe [15.88 (with heat insulator)

Flared connection

Refrigerant pipe [6.35 (with heat insulator)

Refrigerant flow in cooling Refrigerant flow in heating

8

Mitsubishi MCFH-A12WV- E1 (WH), MCFH-A18WV- E1 (WH), MCFH-A24WV- E1 (WH) Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual