Mitsubishi MCFH-13NV- E3, MUCFH-13NV- E3 Service Manual

FLOOR AND CEILING TYPE AIR CONDITIONERS

SERVICE MANUAL

Wireless type
Model

No. OB240

MCFH-13NV-

(When installed on the floor)

(When installed on the ceiling)

MCFH-13NV -

(WH)

·MUCFH-13NV-

CONTENTS

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

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

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

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

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

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

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

8. PERFORMANCE CURVES································9

9. MICROPROCESSOR CONTROL ····················16

10. SERVICE FUNCTIONS·····································25

11. TROUBLESHOOTING ······································26

12. DISASSEMBLY INSTRUCTIONS·····················35

E3

13. PARTS LIST······················································39

14. OPTIONAL PARTS ···········································43

E3E3

Refer to the Service Manual OB227 REVISED EDITION-B when MCFH-13NV-

E1

with MXZ-32RV-

as multi system units.

E3

is connected

1

TECHNICAL CHANGES

MCFH-13NV - →MCFH-13NV -

1. Indoor model name has changed.

2. MCFH-13NV- became possible to connect with MXZ-32RV- as multi system units.

MUCFH-13NV - →MUCFH-13NV -

1. Outdoor model has changed.

2

PART NAMES AND FUNCTIONS

E3E2

E1E3

E3E2

MCFH-13NV -

E3

INDOOR UNIT

(When installed on the floor)

Operation section

(When the air inlet grille is opened.)

Vertical vanes
Horizontal vane

Operation indicator lamp

Receiving section
Front panel

Air cleaning filter (white bellows type)(option)

Air inlet

Air filter

Deodorizing filter (gray sponge type)(option)

Remote controller

Emergency operation switch

(When installed on the ceiling)

2

RESET

CLOCK

g

Signal transmitting section

Operation display section

OPERATE/STOP
(ON/OFF)button

OPERATION SELECT button

FAN SPEED CONTROL button

ON-TIMER button

CLOCK SET button

HR. button

MIN. button

(TIMER SET button)

TEMPERATURE buttons

VANE CONTROL button

SWING button

OFF-TIMER button

RESET button

MUCFH-13NV -

OUTDOOR UNIT

E3

Air inlet

(back and side)

Piping

Drain hose

Air outlet

Drain outlet

MCFH-13NV -

E3

REMOTE CONTROLLER

3

Model

Function

Power supply
Capacity
Dehumidification
Air flow
Power outlet
Running current
Power input
Auxiliary heater
Power factor
Starting current
Compressor motor current
Fan motor current

kW

R/h

K/h

A
A

W

A(kW)

%

A
A
A

W

"

"

"

mm
mm
mm
mm
mm
mm

kg
kg

dB

dB
rpm
rpm

kg

cc
k"
k"
k"

Capacity

Electrical
data

Coefficient of performance(C.O.P)

Compressor

Indoor
fan motor

Outdoor
fan motor

Dimensions

Indoor unit

Indoor unit

Width
Height
Depth
Width
Height
Depth

Indoor unit
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
Outdoor unit

RT11(at 25:)
RT12(at 25:)
RT61(at 0:)

Sound level
(Hi)
Fan speed
(Hi)
Fan speed
regulator

Outdoor unit

Outdoor unit
Air direction

Refrigerant filling capacity(R-22)
Refrigerating machine oil

(Model)

Thermistor

Weight

Special
remarks

Model
Output
Winding resistance (at 20:)
Model

Winding resistance (at 20:)

Model
Winding resistance (at 20:)

Single phase, 220-240V, 50Hz

Cooling

3.7

1.5

6.2-6.4

1,310-1,400

—

96-91

5.54-5.72

2.82-2.64

Heating

4.0
—

5.4-5.8

1,130-1,220

—

95-88

4.74-5.12

3.54-3.28

38

5

46-47

49

1,120-1,260

700-740

1.35

RH-231VHAT

1,100

C-R2.11 C-S3.97

RB4V25-AA or AB

WHT-BLK 182.2 BLK-YLW 68.9

YLW-BLU 47.5 BLU-BRN 31.5

BRN-RED 22.9

RA6V33-CA

WHT-BLK 176 BLK-RED 413

1100

650
180
780
540
255

26

3
1

520 <MS56>

10
10

33.18

780

10

35-38

0.66-0.68

MCFH-13NV-

E3

WMCFH-13NV-

E3 (INDOOR UNIT)

Single phase, 220-240V, 50Hz

—
—

780

10

0.3
66
—

100-92

—
—

0.30
—
—
—
—

RB4V25-AA or AB

WHT-BLK 182.2 BLK-YLW 68.9

YLW-BLU 47.5 BLU-BRN 31.5

BRN-RED 22.9

—
—

1100

650
180

—
—
—
26
—

5

46-47

—

1120-1260

—

3
—
—
—
10
10
—

Cooling Heating

3

SPECIFICATION

wRefer to the Service Manual OB227 REVISED EDITION-B when MCFH-13NV- is connected with

MXZ-32RV- as multi system units.

NOTE:Test conditions Cooling : Indoor DB27°C WB19°C Heating : Indoor DB20°C WB

E1

Outdoor DB35°C WB24°C Outdoor DB 7°C WB 6°C

4

E3

NOISE CRITERIA CURVES4

MCFH-13NV -

90

80

70

60

50

40

30

E3

(A)) LINE

NOTCH

Hi

(220-240V)

SPL(dB

46-47

MUCFH-13NV -

Test conditions,
Cooling : DB 27
Heating : DB 20

:
:

WB 19
WB -

:\ 

90

E3

NOTCH

SPL(dB

Hi

(220-240V)

Test conditions,
Cooling : DB 35
Heating : DB 7

(A)) LINE

49

:
:

WB 24
WB 6

:
:

80

NC-70

70

NC-70

60

NC-60

NC-60

50

NC-50

NC-50

40

NC-40

NC-40

30

NC-30

NC-30

APPROXIMATE

20

THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-20

APPROXIMATE

20

THRESHOLD OF
HEARING FOR

OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.002 MICRO BAR

CONTINUOUS
NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-20

5

5

If clearance
behind the outdoor
units only 40

B

or 50

B

side

A must be

fully open.

10cm or more

10cm or more

10cm or m

ore

Outdoor

unit

35cm or more

REQUIRED SPACE

A

40cm

or m

ore

OUTLINES AND DIMENSIONS

MCFH-13NV -

INDOOR UNIT

(When installed on the floor)

50cm or more

(When installed on the ceiling)

50cm

or m

ore

E3

50cm or more

100cm or more

50cm or more

80.8 906 112.8

650

616.5

17042.5

56

160

17.5

16

1100

Liquid line

6.35

93

77

Gas line

12.7

Unit : mm

114

113

143

180

MUCFH-13NV -

OUTDOOR UNIT

32

109

Air in

Drainage
3holes [33

40

540

260

10

320

E3

Air in

147

122

110

Airout

500
780

74

255

320

285

155

90

25

Service panel

104

Liquid refrigerant
pipe joint
Refrigerant pipe
(flared) [6.35

35-

43-

Gas refrigerant
pipe joint
Refrigerant pipe
(flared) [12.7

6

WIRING DIAGRAM6

SYMBOL
SR141~
SR144

TB

52C

SYMBOL

MV

NR11

RT11
RT12

SYMBOL

C11
F11

HIC1

MF

NAME

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

VANE MOTOR
VARISTOR
ROOM TEMPERATURE THERMISTOR
COIL TEMPERATURE THERMISTOR

SOLID STATE RELAY
TERMINAL BLOCK

CONTACTOR

RT11

GRN/YLW

TB

CIRCUIT BREAKER

POWER SUPPLY
~/N 220-240V
50Hz

GRN/YLW

3

w

BRN

w

2

N

BLU

w

WHT

w

BLU

TO OUTDOOR
UNIT
CONNECTING

AUTO RESTART
ASSY

P.C.BOARD

RECEIVER

DISP/

CN
104

CN

151

CN201

CN
113

CN

101

N
L

5

TRANS

HIC1

MV

6

6

5

5

3

P.C.BOARD

NR11

52C

F11

w

4

3

w

2
1

4

SW/THERMO

LDFH
LDFL

SR144
SR142
SR143

LDFM

BLK
BLU
YLW

SR141

LDFVL

BRN

LDCOM
LDC11
LDC12

WHT

22

ELECTRONIC CONTROL P.C. BOARD

C11

RED

ORN

CN

112

w

RED

YLW

BLU

BLK

BRN

GRN/YLW

WHT
ORN
RED

RT12

MF

220-240V~

12V DC

5

6

4

8

1
2
3

7

N

2

12VDC

REMOTE
CONTROLLER

FOR MULTI SYSTEM

TO OUTDOOR
UNIT
CONNECTING

3

PE

W

WW

W

W

W

220-240V~

12V DC

3

4

WHT

BLK

RED

MF

N

4

3

2

1

RT61

CN730

F61

SR61

GRN/YLW

3

R

C

WHT

RED
BLK

BLU

C1

52C

MC

21S4

1

BLK

BLK

CN721

X62

C65

TAB20

CN661

BLU

CN711

DEICER P.C. BOARD

RED

DSAR

TB

FROM

INDOOR UNIT

CONNECTING

2

IC881

TRANS

X62

NR61

WHT

WHT

SYMBOL

TB

X62

21S4

52C

SYMBOL

MC

MF
NR61
RT61
SR61

SYMBOL

C1

C65

DSAR

F61

IC881

NAME

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

COMPRESSOR(INNER THERMOSTAT)
OUTDOOR FAN MOTOR(INNER THERMOSTAT)
VARISTOR
DEFROST THERMISTOR
SOLID STATE RELAY

TERMINAL BLOCK
REVERSING VALVE COIL RELAY
REVERSING VALVE COIL
CONTACTOR

MCFH-13NV -

INDOOR UNIT

E3

MODEL WIRING DIAGRAM

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

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

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

MUCFH-13NV -

E3

MODEL WIRING DIAGRAM

OUTDOOR UNIT

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

2. Symbols below indicate.

3. “w” shows the terminals with a lock mechanism, so they cannot be removed when you pull

:Terminal block, : Connector

/

the lead wire.
Be sure to pull the wire by pushing the locking lever (projected part) of the terminal with a finger.

7

1Slide the sleeve.
2Pull the wire while

pushing the locking
lever.

7

Indoor
heat
exchanger

Outdoor
heat
exchanger

Distributor

Flared connection

Room temperature
thermistor
RT11

Coil temperature
thermistor
RT12

Defrost
thermistor
RT61

Flared connection

Stop valve

Stop valve
(with service port)

Strainer

Capillary tube
[3.0 o [1.8 o 200

Capillary tube
[3.0 o [1.4 o 500o2

Refrigerant flow in cooling

Compressor

Accumulator

Strainer

Muffler

Reversing valve

Refrigerant flow in heating

Refrigerant pipe [12.7
(Option)
(with heat insulator)

Refrigerant pipe
(Option) [6.35
(with heat insulator)

REFRIGERANT SYSTEM DIAGRAM

MCFH-13NV -

E3

MUCFH-13NV -

INDOOR UNIT OUTDOOR UNIT

E3

MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE

Model

MCFH-13NV - E3

Length : m (ft)

A

15(49)

[12.7(1/2)

Piping size O.D : mm(in.)

Gas

MAX. HEIGHT DIFFERENCE

✽Height difference should be within

5m regardless of which unit,
indoor or outdoor position is high.

ADDITIONAL REFRIGERANT CHARGE (R-22 : g)

MCFH-13NV - E3

Model

Outdoor unit precharged

1,350

A: Refrigerant piping
Max.length
15m(49ft)

7m

0

8

5m(16ft)

Max. Height difference

✽

Refrigerant piping length (one way)

50

9m

100

8m

10m

150

11m

200

Liquid

[6.35(1/4)

350

15m

400

14m

250

13m

300

12m

Calculation : Xg=50g/mx(A-7)m

8

Air in

Air out

Wet-and dry-bulb
thermometers

FRONT VIEW

Wet-and dry-bulb
thermometers
BACK VIEW

PERFORMANCE CURVES

MCFH-13NV -

E3

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

(1) GUARANTEED VOLTAGE

Rated voltage : ±10% (198~264V), 50Hz

(2) AIR FLOW

Air flow should be set at MAX.

(3) MAIN READINGS

COOLING
(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

HEATING
(1) Indoor intake air dry-bulb temperature : ˚CDB
(2) Indoor outlet air dry-bulb temperature : ˚CDB
(3) Outdoor intake air wet-bulb temperature : ˚CWB

(4) Total input : W
Indoor air wet/dry-bulb temperature difference on the left side of the chart on this page shows the difference between the
indoor intake air wet/dry-bulb temperature and the indoor outlet air wet/dry-bulb temperature for your reference at
service.

How to measure the indoor air wet-bulb/dry-bulb temperature difference

1. Attach at least 2 sets of wet-and-dry-bulb thermometers to the indoor air intake as shown in the figure, and at least 2 sets of
wet-and-dry-bulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air speed
is high.

2. Attach at least 2 sets of wet-and-dry-bulb thermometers to the outdoor air intake.

Cover the thermometers to prevent direct rays of the sun.

3. Check that the air filter is cleaned.

4. Open windows and doors of the 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

9.3

8.6

7.8

7.1

6.3

5.6

MCFH-13NV- E3

20.1

18.6

17.0

15.5

13.9

12.4

10.8

9.3

OUTDOOR UNIT

MCFH-13NV- E3

9

OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT

18 32

50 60 70 (%)

Ambient temperature (:) / Ambient humidity (%)

Outdoor low pressure

50 60 70 (%)

Ambient temperature (:) / Ambient humidity (%)

Outdoor unit current (A)

Ambient temperature (:)

Outdoor unit current (A)

HEAT operation

Condition Indoor : Dry bulb temerature 20.0:

Wet bulb temerature 14.5:

Outdoor : Dry bulb temerature 7,15,20:

Wet bulb temerature 6,12,14.5:

(MPa•G)

(kgf/F• G)

15 20 25 30 35(:)

0.3

0.4

0.5

0.6

0.7

0.8

15 20 25 30 35(:)

3

4

5

6

7

8

5 7 10 15 20 25(:)

3

4

5

6

7

8

220-240V 220-240V

240V

220V

18 32

7

8

5

6

4

3

COOL operation

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

Dry Bulb temperature (˚C)

20
25
30

2 Air flow should be set at MAX.
3 The unit of pressure has been changed to MPa on the international system of units(SI unit system).

The conversion factor is : 1(MPa • G) =10.2(kgf/ff• G)

Relative humidity (%)

50
60
70

MUCFH-13NV -

E3

10

PERFORMANCE DATA
COOL operation(220V)

MCFH-13NV - : MUCFH-13NV -

CAPACITY: 3.7 kW INPUT : 1310 W SHF : 0.72

INDOOR INDOOR

DB(:) WB(:)

21 18 4.35 2.35 0.54 1048 4.16 2.25 0.54 1100 4.00 2.16 0.54 1153 3.85 2.08 0.54 1205
21 20 4.53 1.90 0.42 1100 4.35 1.83 0.42 1166 4.22 1.77 0.42 1192 4.07 1.71 0.42 1245
22 18 4.35 2.52 0.58 1048 4.16 2.41 0.58 1100 4.00 2.32 0.58 1153 3.85 2.23 0.58 1205
22 20 4.53 2.08 0.46 1100 4.35 2.00 0.46 1166 4.22 1.94 0.46 1192 4.07 1.87 0.46 1245
22 22 4.72 1.60 0.34 1140 4.55 1.55 0.34 1212 4.44 1.51 0.34 1245 4.26 1.45 0.34 1297
23 18 4.35 2.70 0.62 1048 4.16 2.58 0.62 1100 4.00 2.48 0.62 1153 3.85 2.39 0.62 1205
23 20 4.53 2.27 0.50 1100 4.35 2.17 0.50 1166 4.22 2.11 0.50 1192 4.07 2.04 0.50 1245
23 22 4.72 1.79 0.38 1140 4.55 1.73 0.38 1212 4.44 1.69 0.38 1245 4.26 1.62 0.38 1297
24 18 4.35 2.87 0.66 1048 4.16 2.75 0.66 1100 4.00 2.64 0.66 1153 3.85 2.54 0.66 1205
24 20 4.53 2.45 0.54 1100 4.35 2.35 0.54 1166 4.22 2.28 0.54 1192 4.07 2.20 0.54 1245
24 22 4.72 1.98 0.42 1140 4.55 1.91 0.42 1212 4.44 1.86 0.42 1245 4.26 1.79 0.42 1297
24 24 4.96 1.49 0.30 1192 4.77 1.43 0.30 1258 4.66 1.40 0.30 1297 4.51 1.35 0.30 1362
25 18 4.35 3.04 0.70 1048 4.16 2.91 0.70 1100 4.00 2.80 0.70 1153 3.85 2.69 0.70 1205
25 20 4.53 2.63 0.58 1100 4.35 2.52 0.58 1166 4.22 2.45 0.58 1192 4.07 2.36 0.58 1245
25 22 4.72 2.17 0.46 1140 4.55 2.09 0.46 1212 4.44 2.04 0.46 1245 4.26 1.96 0.46 1297
25 24 4.96 1.69 0.34 1192 4.77 1.62 0.34 1258 4.66 1.59 0.34 1297 4.51 1.53 0.34 1362
26 18 4.35 3.22 0.74 1048 4.16 3.08 0.74 1100 4.00 2.96 0.74 1153 3.85 2.85 0.74 1205
26 20 4.53 2.81 0.62 1100 4.35 2.70 0.62 1166 4.22 2.62 0.62 1192 4.07 2.52 0.62 1245
26 22 4.72 2.36 0.50 1140 4.55 2.28 0.50 1212 4.44 2.22 0.50 1245 4.26 2.13 0.50 1297
26 24 4.96 1.88 0.38 1192 4.77 1.81 0.38 1258 4.66 1.77 0.38 1297 4.51 1.72 0.38 1362
26 26 5.11 1.33 0.26 1258 4.96 1.29 0.26 1323 4.88 1.27 0.26 1362 4.74 1.23 0.26 1402
27 18 4.35 3.39 0.78 1048 4.16 3.25 0.78 1100 4.00 3.12 0.78 1153 3.85 3.00 0.78 1205
27 20 4.53 2.99 0.66 1100 4.35 2.87 0.66 1166 4.22 2.78 0.66 1192 4.07 2.69 0.66 1245
27 22 4.72 2.55 0.54 1140 4.55 2.46 0.54 1212 4.44 2.40 0.54 1245 4.26 2.30 0.54 1297
27 24 4.96 2.08 0.42 1192 4.77 2.00 0.42 1258 4.66 1.96 0.42 1297 4.51 1.90 0.42 1362
27 26 5.11 1.53 0.30 1258 4.96 1.49 0.30 1323 4.88 1.47 0.30 1362 4.74 1.42 0.30 1402
28 18 4.35 3.56 0.82 1048 4.16 3.41 0.82 1100 4.00 3.28 0.82 1153 3.85 3.16 0.82 1205
28 20 4.53 3.17 0.70 1100 4.35 3.04 0.70 1166 4.22 2.95 0.70 1192 4.07 2.85 0.70 1245
28 22 4.72 2.74 0.58 1140 4.55 2.64 0.58 1212 4.44 2.58 0.58 1245 4.26 2.47 0.58 1297
28 24 4.96 2.28 0.46 1192 4.77 2.20 0.46 1258 4.66 2.14 0.46 1297 4.51 2.08 0.46 1362
28 26 5.11 1.74 0.34 1258 4.96 1.69 0.34 1323 4.88 1.66 0.34 1362 4.74 1.61 0.34 1402
29 18 4.35 3.74 0.86 1048 4.16 3.58 0.86 1100 4.00 3.44 0.86 1153 3.85 3.31 0.86 1205
29 20 4.53 3.35 0.74 1100 4.35 3.22 0.74 1166 4.22 3.12 0.74 1192 4.07 3.01 0.74 1245
29 22 4.72 2.92 0.62 1140 4.55 2.82 0.62 1212 4.44 2.75 0.62 1245 4.26 2.64 0.62 1297
29 24 4.96 2.48 0.50 1192 4.77 2.39 0.50 1258 4.66 2.33 0.50 1297 4.51 2.26 0.50 1362
29 26 5.11 1.94 0.38 1258 4.96 1.88 0.38 1323 4.88 1.86 0.38 1362 4.74 1.80 0.38 1402
30 18 4.35 3.91 0.90 1048 4.16 3.75 0.90 1100 4.00 3.60 0.90 1153 3.85 3.46 0.90 1205
30 20 4.53 3.54 0.78 1100 4.35 3.39 0.78 1166 4.22 3.29 0.78 1192 4.07 3.17 0.78 1245
30 22 4.72 3.11 0.66 1140 4.55 3.00 0.66 1212 4.44 2.93 0.66 1245 4.26 2.81 0.66 1297
30 24 4.96 2.68 0.54 1192 4.77 2.58 0.54 1258 4.66 2.52 0.54 1297 4.51 2.44 0.54 1362
30 26 5.11 2.14 0.42 1258 4.96 2.08 0.42 1323 4.88 2.05 0.42 1362 4.74 1.99 0.42 1402
31 18 4.35 4.09 0.94 1048 4.16 3.91 0.94 1100 4.00 3.76 0.94 1153 3.85 3.62 0.94 1205
31 20 4.53 3.72 0.82 1100 4.35 3.56 0.82 1166 4.22 3.46 0.82 1192 4.07 3.34 0.82 1245
31 22 4.72 3.30 0.70 1140 4.55 3.19 0.70 1212 4.44 3.11 0.70 1245 4.26 2.98 0.70 1297
31 24 4.96 2.88 0.58 1192 4.77 2.77 0.58 1258 4.66 2.70 0.58 1297 4.51 2.62 0.58 1362
31 26 5.11 2.35 0.46 1258 4.96 2.28 0.46 1323 4.88 2.25 0.46 1362 4.74 2.18 0.46 1402
32 18 4.35 4.26 0.98 1048 4.16 4.08 0.98 1100 4.00 3.92 0.98 1153 3.85 3.77 0.98 1205
32 20 4.53 3.90 0.86 1100 4.35 3.74 0.86 1166 4.22 3.63 0.86 1192 4.07 3.50 0.86 1245
32 22 4.72 3.49 0.74 1140 4.55 3.37 0.74 1212 4.44 3.29 0.74 1245 4.26 3.15 0.74 1297
32 24 4.96 3.07 0.62 1192 4.77 2.96 0.62 1258 4.66 2.89 0.62 1297 4.51 2.80 0.62 1362
32 26 5.11 2.55 0.50 1258 4.96 2.48 0.50 1323 4.88 2.44 0.50 1362 4.74 2.37 0.50 1402

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

21 25 27 30

E3E3

OUTDOOR DB(:)

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

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

11

OUTDOOR DB(:)

INDOOR INDOOR

35 40 43

DB(:) WB(:)

Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 18 3.63 1.96 0.54 1284 3.33 1.80 0.54 1362 3.20 1.73 0.54 1389
21 20 3.81 1.60 0.42 1336 3.55 1.49 0.42 1402 3.42 1.44 0.42 1441
22 18 3.63 2.10 0.58 1284 3.33 1.93 0.58 1362 3.20 1.86 0.58 1389
22 20 3.81 1.75 0.46 1336 3.55 1.63 0.46 1402 3.42 1.57 0.46 1441
22 22 4.03 1.37 0.34 1389 3.77 1.28 0.34 1467 3.64 1.24 0.34 1493
23 18 3.63 2.25 0.62 1284 3.33 2.06 0.62 1362 3.20 1.98 0.62 1389
23 20 3.81 1.91 0.50 1336 3.55 1.78 0.50 1402 3.42 1.71 0.50 1441
23 22 4.03 1.53 0.38 1389 3.77 1.43 0.38 1467

3.64 1.38 0.38 1493
24 18 3.63 2.39 0.66 1284 3.33 2.20 0.66 1362 3.20 2.11 0.66 1389
24 20 3.81 2.06 0.54 1336 3.55 1.92 0.54 1402 3.42 1.85 0.54 1441
24 22 4.03 1.69 0.42 1389 3.77 1.59 0.42 1467 3.64 1.53 0.42 1493
24 24 4.26 1.28 0.30 1441 4.00 1.20 0.30 1507 3.89 1.17 0.30 1539
25 18 3.63 2.54 0.70 1284 3.33 2.33 0.70 1362 3.20 2.24 0.70 1389
25 20 3.81 2.21 0.58 1336 3.55 2.06 0.58 1402 3.42 1.99 0.58 1441
25 22 4.03 1.86 0.46 1389 3.77 1.74 0.46 1467 3.64 1.68 0.46 1493
25 24 4.26 1.45 0.34 1441 4.00 1.36 0.34 1507 3.89 1.32 0.34 1539
26 18 3.63 2.68 0.74 1284 3.33 2.46 0.74 1362 3.20 2.37 0.74 1389
26 20 3.81 2.36 0.62 1336 3.55 2.20 0.62 1402 3.42 2.12 0.62 1441
26 22 4.03 2.02 0.50 1389 3.77 1.89 0.50 1467 3.64 1.82 0.50 1493
26 24 4.26 1.62 0.38 1441 4.00 1.52 0.38 1507 3.89 1.48 0.38 1539
26 26 4.48 1.16 0.26 1493 4.22 1.10 0.26 1559 4.09 1.06 0.26 1592
27 18 3.63 2.83 0.78 1284 3.33 2.60 0.78 1362 3.20 2.50 0.78 1389
27 20 3.81 2.52 0.66 1336 3.55 2.34 0.66 1402 3.42 2.26 0.66 1441
27 22 4.03 2.18 0.54 1389 3.77 2.04 0.54 1467 3.64 1.97 0.54 1493
27 24 4.26 1.79 0.42 1441 4.00 1.68 0.42 1507 3.89 1.63 0.42 1539
27 26 4.48 1.34 0.30 1493 4.22 1.27 0.30 1559 4.09 1.23 0.30 1592
28 18 3.63 2.97 0.82 1284 3.33 2.73 0.82 1362 3.20 2.62 0.82 1389
28 20 3.81 2.67 0.70 1336 3.55 2.49 0.70 1402 3.42 2.40 0.70 1441
28 22 4.03 2.34 0.58 1389 3.77 2.19 0.58 1467 3.64 2.11 0.58 1493
28 24 4.26 1.96 0.46 1441 4.00 1.84 0.46 1507 3.89 1.79 0.46 1539
28 26 4.48 1.52 0.34 1493 4.22 1.43 0.34 1559 4.09 1.39 0.34 1592
29 18 3.63 3.12 0.86 1284 3.33 2.86 0.86 1362 3.20 2.75 0.86 1389
29 20 3.81 2.82 0.74 1336 3.55 2.63 0.74 1402 3.42 2.53 0.74 1441
29 22 4.03 2.50 0.62 1389 3.77 2.34 0.62 1467 3.64 2.26 0.62 1493
29 24 4.26 2.13 0.50 1441 4.00 2.00 0.50 1507 3.89 1.94 0.50 1539
29 26 4.48 1.70 0.38 1493 4.22 1.60 0.38 1559 4.09 1.55 0.38 1592
30 18 3.63 3.26 0.90 1284 3.33 3.00 0.90 1362 3.20 2.88 0.90 1389
30 20 3.81 2.97 0.78 1336 3.55 2.77 0.78 1402 3.42 2.67 0.78 1441
30 22 4.03 2.66 0.66 1389 3.77 2.49 0.66 1467 3.64 2.41 0.66 1493
30 24 4.26 2.30 0.54 1441 4.00 2.16 0.54 1507 3.89 2.10 0.54 1539
30 26 4.48 1.88 0.42 1493 4.22 1.77 0.42 1559 4.09 1.72 0.42 1592
31 18 3.63 3.41 0.94 1284 3.33 3.13 0.94 1362 3.20 3.01 0.94 1389
31 20 3.81 3.13 0.82 1336 3.55 2.91 0.82 1402 3.42 2.81 0.82 1441
31 22 4.03 2.82 0.70 1389 3.77 2.64 0.70 1467 3.64 2.55 0.70 1493
31 24 4.26 2.47 0.58 1441 4.00 2.32 0.58 1507 3.89 2.25 0.58 1539
31 26 4.48 2.06 0.46 1493 4.22 1.94 0.46 1559 4.09 1.88 0.46 1592
32 18 3.63 3.55 0.98 1284 3.33 3.26 0.98 1362 3.20 3.14 0.98 1389
32 20 3.81 3.28 0.86 1336 3.55 3.05 0.86 1402 3.42 2.94 0.86 1441
32 22 4.03 2.98 0.74 1389 3.77 2.79 0.74 1467 3.64 2.70 0.74 1493
32 24 4.26 2.64 0.62 1441 4.00 2.48 0.62 1507 3.89 2.41 0.62 1539
32 26 4.48 2.24 0.50 1493 4.22 2.11 0.50 1559 4.09 2.04 0.50 1592

CAPACITY: 3.7 kW INPUT : 1310 W SHF : 0.72

PERFORMANCE DATA
COOL operation(220V)

MCFH-13NV - : MUCFH-13NV -

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

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

E3E3

12

PERFORMANCE DATA
COOL operation(240V)

MCFH-13NV - : MUCFH-13NV -

CAPACITY: 3.7 kW INPUT : 1400 W SHF : 0.72

INDOOR INDOOR

DB(:) WB(:)

21 18 4.35 2.35 0.54 1120 4.16 2.25 0.54 1176 4.00 2.16 0.54 1232 3.85 2.08 0.54 1288
21 20 4.53 1.90 0.42 1176 4.35 1.83 0.42 1246 4.22 1.77 0.42 1274 4.07 1.71 0.42 1330
22 18 4.35 2.52 0.58 1120 4.16 2.41 0.58 1176 4.00 2.32 0.58 1232 3.85 2.23 0.58 1288
22 20 4.53 2.08 0.46 1176 4.35 2.00 0.46 1246 4.22 1.94 0.46 1274 4.07 1.87 0.46 1330
22 22 4.72 1.60 0.34 1218 4.55 1.55 0.34 1295 4.44 1.51 0.34 1330 4.26 1.45 0.34 1386
23 18 4.35 2.70 0.62 1120 4.16 2.58 0.62 1176 4.00 2.48 0.62 1232 3.85 2.39 0.62 1288
23 20 4.53 2.27 0.50 1176 4.35 2.17 0.50 1246 4.22 2.11 0.50 1274 4.07 2.04 0.50 1330
23 22 4.72 1.79 0.38 1218 4.55 1.73 0.38 1295 4.44 1.69 0.38 1330 4.26 1.62 0.38 1386
24 18 4.35 2.87 0.66 1120 4.16 2.75 0.66 1176 4.00 2.64 0.66 1232 3.85 2.54 0.66 1288
24 20 4.53 2.45 0.54 1176 4.35 2.35 0.54 1246 4.22 2.28 0.54 1274 4.07 2.20 0.54 1330
24 22 4.72 1.98 0.42 1218 4.55 1.91 0.42 1295 4.44 1.86 0.42 1330 4.26 1.79 0.42 1386
24 24 4.96 1.49 0.30 1274 4.77 1.43 0.30 1344 4.66 1.40 0.30 1386 4.51 1.35 0.30 1456
25 18 4.35 3.04 0.70 1120 4.16 2.91 0.70 1176 4.00 2.80 0.70 1232 3.85 2.69 0.70 1288
25 20 4.53 2.63 0.58 1176 4.35 2.52 0.58 1246 4.22 2.45 0.58 1274 4.07 2.36 0.58 1330
25 22 4.72 2.17 0.46 1218 4.55 2.09 0.46 1295 4.44 2.04 0.46 1330 4.26 1.96 0.46 1386
25 24 4.96 1.69 0.34 1274 4.77 1.62 0.34 1344 4.66 1.59 0.34 1386 4.51 1.53 0.34 1456
26 18 4.35 3.22 0.74 1120 4.16 3.08 0.74 1176 4.00 2.96 0.74 1232 3.85 2.85 0.74 1288
26 20 4.53 2.81 0.62 1176 4.35 2.70 0.62 1246 4.22 2.62 0.62 1274 4.07 2.52 0.62 1330
26 22 4.72 2.36 0.50 1218 4.55 2.28 0.50 1295 4.44 2.22 0.50 1330 4.26 2.13 0.50 1386
26 24 4.96 1.88 0.38 1274 4.77 1.81 0.38 1344 4.66 1.77 0.38 1386 4.51 1.72 0.38 1456
26 26 5.11 1.33 0.26 1344 4.96 1.29 0.26 1414 4.88 1.27 0.26 1456 4.74 1.23 0.26 1498
27 18 4.35 3.39 0.78 1120 4.16 3.25 0.78 1176 4.00 3.12 0.78 1232 3.85 3.00 0.78 1288
27 20 4.53 2.99 0.66 1176 4.35 2.87 0.66 1246 4.22 2.78 0.66 1274 4.07 2.69 0.66 1330
27 22 4.72 2.55 0.54 1218 4.55 2.46 0.54 1295 4.44 2.40 0.54 1330 4.26 2.30 0.54 1386
27 24 4.96 2.08 0.42 1274 4.77 2.00 0.42 1344 4.66 1.96 0.42 1386 4.51 1.90 0.42 1456
27 26 5.11 1.53 0.30 1344 4.96 1.49 0.30 1414 4.88 1.47 0.30 1456 4.74 1.42 0.30 1498
28 18 4.35 3.56 0.82 1120 4.16 3.41 0.82 1176 4.00 3.28 0.82 1232 3.85 3.16 0.82 1288
28 20 4.53 3.17 0.70 1176 4.35 3.04 0.70 1246 4.22 2.95 0.70 1274 4.07 2.85 0.70 1330
28 22 4.72 2.74 0.58 1218 4.55 2.64 0.58 1295 4.44 2.58 0.58 1330 4.26 2.47 0.58 1386
28 24 4.96 2.28 0.46 1274 4.77 2.20 0.46 1344 4.66 2.14 0.46 1386 4.51 2.08 0.46 1456
28 26 5.11 1.74 0.34 1344 4.96 1.69 0.34 1414 4.88 1.66 0.34 1456 4.74 1.61 0.34 1498
29 18 4.35 3.74 0.86 1120 4.16 3.58 0.86 1176 4.00 3.44 0.86 1232 3.85 3.31 0.86 1288
29 20 4.53 3.35 0.74 1176 4.35 3.22 0.74 1246 4.22 3.12 0.74 1274 4.07 3.01 0.74 1330
29 22 4.72 2.92 0.62 1218 4.55 2.82 0.62 1295 4.44 2.75 0.62 1330 4.26 2.64 0.62 1386
29 24 4.96 2.48 0.50 1274 4.77 2.39 0.50 1344 4.66 2.33 0.50 1386 4.51 2.26 0.50 1456
29 26 5.11 1.94 0.38 1344 4.96 1.88 0.38 1414 4.88 1.86 0.38 1456 4.74 1.80 0.38 1498
30 18 4.35 3.91 0.90 1120 4.16 3.75 0.90 1176 4.00 3.60 0.90 1232 3.85 3.46 0.90 1288
30 20 4.53 3.54 0.78 1176 4.35 3.39 0.78 1246 4.22 3.29 0.78 1274 4.07 3.17 0.78 1330
30 22 4.72 3.11 0.66 1218 4.55 3.00 0.66 1295 4.44 2.93 0.66 1330 4.26 2.81 0.66 1386
30 24 4.96 2.68 0.54 1274 4.77 2.58 0.54 1344 4.66 2.52 0.54 1386 4.51 2.44 0.54 1456
30 26 5.11 2.14 0.42 1344 4.96 2.08 0.42 1414 4.88 2.05 0.42 1456 4.74 1.99 0.42 1498
31 18 4.35 4.09 0.94 1120 4.16 3.91 0.94 1176 4.00 3.76 0.94 1232 3.85 3.62 0.94 1288
31 20 4.53 3.72 0.82 1176 4.35 3.56 0.82 1246 4.22 3.46 0.82 1274 4.07 3.34 0.82 1330
31 22 4.72 3.30 0.70 1218 4.55 3.19 0.70 1295 4.44 3.11 0.70 1330 4.26 2.98 0.70 1386
31 24 4.96 2.88 0.58 1274 4.77 2.77 0.58 1344 4.66 2.70 0.58 1386 4.51 2.62 0.58 1456
31 26 5.11 2.35 0.46 1344 4.96 2.28 0.46 1414 4.88 2.25 0.46 1456 4.74 2.18 0.46 1498
32 18 4.35 4.26 0.98 1120 4.16 4.08 0.98 1176 4.00 3.92 0.98 1232 3.85 3.77 0.98 1288
32 20 4.53 3.90 0.86 1176 4.35 3.74 0.86 1246 4.22 3.63 0.86 1274 4.07 3.50 0.86 1330
32 22 4.72 3.49 0.74 1218 4.55 3.37 0.74 1295 4.44 3.29 0.74 1330 4.26 3.15 0.74 1386
32 24 4.96 3.07 0.62 1274 4.77 2.96 0.62 1344 4.66 2.89 0.62 1386 4.51 2.80 0.62 1456
32 26 5.11 2.55 0.50 1344 4.96 2.48 0.50 1414 4.88 2.44 0.50 1456 4.74 2.37 0.50 1498

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

21 25 27 30

E3E3

OUTDOOR DB(:)

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

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

13

PERFORMANCE DATA

OUTDOOR DB(:)

INDOOR INDOOR

35 40 43

DB(:) WB(:)

OUT SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT
21 18 3.63 1.96 0.54 1372 3.33 1.80 0.54 1456 3.20 1.73 0.54 1484
21 20 3.81 1.60 0.42 1428 3.55 1.49 0.42 1498 3.42 1.44 0.42 1540
22 18 3.63 2.10 0.58 1372 3.33 1.93 0.58 1456 3.20 1.86 0.58 1484
22 20 3.81 1.75 0.46 1428 3.55 1.63 0.46 1498 3.42 1.57 0.46 1540
22 22 4.03 1.37 0.34 1484 3.77 1.28 0.34 1568 3.64 1.24 0.34 1596
23 18 3.63 2.25 0.62 1372 3.33 2.06 0.62 1456 3.20 1.98 0.62 1484
23 20 3.81 1.91 0.50 1428 3.55 1.78 0.50 1498 3.42 1.71 0.50 1540
23 22 4.03 1.53 0.38 1484 3.77 1.43 0.38 1568

3.64 1.38 0.38 1596
24 18 3.63 2.39 0.66 1372 3.33 2.20 0.66 1456 3.20 2.11 0.66 1484
24 20 3.81 2.06 0.54 1428 3.55 1.92 0.54 1498 3.42 1.85 0.54 1540
24 22 4.03 1.69 0.42 1484 3.77 1.59 0.42 1568 3.64 1.53 0.42 1596
24 24 4.26 1.28 0.30 1540 4.00 1.20 0.30 1610 3.89 1.17 0.30 1645
25 18 3.63 2.54 0.70 1372 3.33 2.33 0.70 1456 3.20 2.24 0.70 1484
25 20 3.81 2.21 0.58 1428 3.55 2.06 0.58 1498 3.42 1.99 0.58 1540
25 22 4.03 1.86 0.46 1484 3.77 1.74 0.46 1568 3.64 1.68 0.46 1596
25 24 4.26 1.45 0.34 1540 4.00 1.36 0.34 1610 3.89 1.32 0.34 1645
26 18 3.63 2.68 0.74 1372 3.33 2.46 0.74 1456 3.20 2.37 0.74 1484
26 20 3.81 2.36 0.62 1428 3.55 2.20 0.62 1498 3.42 2.12 0.62 1540
26 22 4.03 2.02 0.50 1484 3.77 1.89 0.50 1568 3.64 1.82 0.50 1596
26 24 4.26 1.62 0.38 1540 4.00 1.52 0.38 1610 3.89 1.48 0.38 1645
26 26 4.48 1.16 0.26 1596 4.22 1.10 0.26 1666 4.09 1.06 0.26 1701
27 18 3.63 2.83 0.78 1372 3.33 2.60 0.78 1456 3.20 2.50 0.78 1484
27 20 3.81 2.52 0.66 1428 3.55 2.34 0.66 1498 3.42 2.26 0.66 1540
27 22 4.03 2.18 0.54 1484 3.77 2.04 0.54 1568 3.64 1.97 0.54 1596
27 24 4.26 1.79 0.42 1540 4.00 1.68 0.42 1610 3.89 1.63 0.42 1645
27 26 4.48 1.34 0.30 1596 4.22 1.27 0.30 1666 4.09 1.23 0.30 1701
28 18 3.63 2.97 0.82 1372 3.33 2.73 0.82 1456 3.20 2.62 0.82 1484
28 20 3.81 2.67 0.70 1428 3.55 2.49 0.70 1498 3.42 2.40 0.70 1540
28 22 4.03 2.34 0.58 1484 3.77 2.19 0.58 1568 3.64 2.11 0.58 1596
28 24 4.26 1.96 0.46 1540 4.00 1.84 0.46 1610 3.89 1.79 0.46 1645
28 26 4.48 1.52 0.34 1596 4.22 1.43 0.34 1666 4.09 1.39 0.34 1701
29 18 3.63 3.12 0.86 1372 3.33 2.86 0.86 1456 3.20 2.75 0.86 1484
29 20 3.81 2.82 0.74 1428 3.55 2.63 0.74 1498 3.42 2.53 0.74 1540
29 22 4.03 2.50 0.62 1484 3.77 2.34 0.62 1568 3.64 2.26 0.62 1596
29 24 4.26 2.13 0.50 1540 4.00 2.00 0.50 1610 3.89 1.94 0.50 1645
29 26 4.48 1.70 0.38 1596 4.22 1.60 0.38 1666 4.09 1.55 0.38 1701
30 18 3.63 3.26 0.90 1372 3.33 3.00 0.90 1456 3.20 2.88 0.90 1484
30 20 3.81 2.97 0.78 1428 3.55 2.77 0.78 1498 3.42 2.67 0.78 1540
30 22 4.03 2.66 0.66 1484 3.77 2.49 0.66 1568 3.64 2.41 0.66 1596
30 24 4.26 2.30 0.54 1540 4.00 2.16 0.54 1610 3.89 2.10 0.54 1645
30 26 4.48 1.88 0.42 1596 4.22 1.77 0.42 1666 4.09 1.72 0.42 1701
31 18 3.63 3.41 0.94 1372 3.33 3.13 0.94 1456 3.20 3.01 0.94 1484
31 20 3.81 3.13 0.82 1428 3.55 2.91 0.82 1498 3.42 2.81 0.82 1540
31 22 4.03 2.82 0.70 1484 3.77 2.64 0.70 1568 3.64 2.55 0.70 1596
31 24 4.26 2.47 0.58 1540 4.00 2.32 0.58 1610 3.89 2.25 0.58 1645
31 26 4.48 2.06 0.46 1596 4.22 1.94 0.46 1666 4.09 1.88 0.46 1701
32 18 3.63 3.55 0.98 1372 3.33 3.26 0.98 1456 3.20 3.14 0.98 1484
32 20 3.81 3.28 0.86 1428 3.55 3.05 0.86 1498 3.42 2.94 0.86 1540
32 22 4.03 2.98 0.74 1484 3.77 2.79 0.74 1568 3.64 2.70 0.74 1596
32 24 4.26 2.64 0.62 1540 4.00 2.48 0.62 1610 3.89 2.41 0.62 1645
32 26 4.48 2.24 0.50 1596 4.22 2.11 0.50 1666 4.09 2.04 0.50 1701

CAPACITY: 3.7 kW INPUT : 1400 W SHF : 0.72

COOL operation(240V)

MCFH-13NV - : MUCFH-13NV -

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

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

E3E3

14

PERFORMANCE DATA
HEAT operation(220V)

MCFH-13NV - : MUCFH-13NV -

CAPACITY: 4.0 kW INPUT : 1130W

INDOOR

DB(:)

15 2.52 735 3.04 881 3.56 994 4.08 1074 4.60 1141 5.08 1175 5.60 1198
21 2.40 791 2.88 938 3.40 1040 3.88 1119 4.40 1175 4.88 1209 5.38 1254
26 2.16 848 2.68 994 3.16 1096 3.68 1175 4.20 1232 4.68 1266 5.20 1300

-10 -5 0 5 10 15 20

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

E3E3

OUTDOOR DB(:)

PERFORMANCE DATA
HEAT operation(240V)

MCFH-13NV - : MUCFH-13NV -

CAPACITY: 4.0 kW INPUT : 1220W

INDOOR

DB(:)

15 2.52 793 3.04 952 3.56 1074 4.08 1159 4.60 1232 5.08 1269 5.60 1293
21 2.40 854 2.88 1013 3.40 1122 3.88 1208 4.40 1269 4.88 1305 5.38 1354
26 2.16 915 2.68 1074 3.16 1183 3.68 1269 4.20 1330 4.68 1366 5.20 1403

-10 -5 0 5 10 15 20

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

E3E3

OUTDOOR DB(:)

15

9

RESETRESET

CLOCKCLOCK

g

Indication

Operation state

Difference
between set
temperatuer
and room
temperature

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.

lighting

not lighting

Approx. 2 : 
or more

Approx. 2 : 
or less

Operation Indicator

OPERATION INDICATOR

lamp

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

MICROPROCESSOR CONTROL

WIRELESS REMOTE CONTROLLER

MCFH-13NV -

E3

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

9-1. “I FEEL CONTROL” ( ) OPERATION

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

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

(2) Select “I FEEL CONTROL”

OPERATION SELECT button.

(3) The operation mode is determined by the room

temperature at start-up of the operation.

Initial room temperature

25: or more

23:to 25:

less than 23:

() mode with the

Mode

COOL mode of

"I FEEL CONTROL"

DRY mode of

"I FEEL CONTROL"

HEAT mode of

"I FEEL CONTROL"

INDOOR UNIT DISPLAY SECTION

● 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 set
time the operation starts.

● When the system is stopped with the
OPERATE/ STOP(ON/OFF) button 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

Previous operation

COOL mode of
“I FEEL CONTROL”
or COOL mode

Restart

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

16

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

Model

COOL mode of

"I FEEL CONTROL"

Initial room temperature Initial set temperature

26: or more

25: to 26:

Initial room temperature

24:

minus 2:

DRY mode of

"I FEEL CONTROL"

HEAT mode of

"I FEEL CONTROL"

23: to 25:

less than 23:

Initial room temperature
minus 2:

26:

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

regardless 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 or TOO WARM or TOO COOL buttons when you feel too warm or too
cool. 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.

❈1

▲TOO

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

▼ TOO
WARM … To lower the set temperature 1~2 degrees(°C)

— COOL mode of “I FEEL CONTROL” —

1. Indoor fan speed control

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

Initial temperature difference Fan Speed
Room temperature minus set temperature : 2 degrees or more
Room temperature minus set temperature : Between 1 and 2 degrees
Room temperature minus set temperature : less than 1 degree

········································Hi

·····························Me

········································

Lo

2. Coil frost prevention

① Temperature control

When the indoor coil thermistor RT12 reads -1°C or below, the coil frost prevention mode starts immediately.
However, the coil frost prevention doesn’t work for 5 minutes since the compressor has started.
The indoor fan operates at the set speed and the compressor stops for 5 minutes.
After that, if RT12 still reads below -1°C, this mode prolonged until the RT12 reads over -1°C.

Difference between room
temperature and set temperature
during operation.

1deg. 1.7deg.

2deg. 4deg.

17

Compressor

Outdoor fan

Indoor fan

ON

OFF

(continuously at set speed)

OFF

ON

ON

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 Lo or Me.
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 Hi or the room temperature exceeds 26°C.
However, when two of the above conditions (b. and c.) are satisfied again, Time accumulation is resumed.

Operation chart

Example

—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 air 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 Lo.

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

Compressor operates by 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

Example

Thermostat

Indoor fan

Outdoor fan
Compressor

3. Coil frost prevention

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

• Indoor fan operates at the set speed and the compressor stops for 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 Lo.

OFF

OFF

OFF

8 min.

ON

ON

ON

OFF

OFF

ON

ON

3 min.

OFF

OFF

4 min.

18

OFF

ON

ON

1 min.

ON

— HEAT mode of “I FEEL CONTROL” —

Difference between room
temperature and set temperature
during operation.

1deg. 1.7deg.

2deg. 4deg.

Released

Cold Air Prevention

18: 22:

Fan speed
Set speed
VLo or stop

High pressure protection

Released

48: 52:

ON

Outdoor fan

OFF

1. Indoor fan speed control

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

Set temperature minus room temperature: 2 degrees or more·······························Hi
Set temperature minus room temperature: Between 1 and 2 degrees···················Me
Set temperature minus room temperature: less than 1 degree ······························Lo

(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 VLo
when the temperature of indoor coil thermistor RT12 is below 18°C. But the fan stops when the indoor fan operates at
VLo and the room temperature is 15°C or less.

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 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 temperature is less than 37°C, the fan speed is controlled by time as below.

<Time condition> <Indoor fan speed>
less than 2 minutes························Lo
2 minutes to 4 minutes···················Me
4 minutes or more··························Hi

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 VLo.

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.

Initial temperature difference Fan speed

2. High pressure protection

During heating operation, the outdoor fan motor is controlled by the temperature of indoor coil thermistor RT12 temperature
for excess rise protection of compressor discharge pressure.
Outdoor fan OFF : 52°C
Outdoor fan ON : 48°C

High pressure protection chart
Example

Indoor coil thermistor
RT12 temperature

NOTE1 : When the outdoor fan is OFF in heating, defrosting of outdoor heat exchanger is not detected by the defrost

NOTE2 : When connected to MXZ-32RV- outdoor unit, the indoor unit sends the data for the temperature to the outdoor

52˚C

48˚C

ON ON

Outdoor fan motor

OFF

OFF

thermistor RT61.

E1

unit according to the indoor coil temperature.

For the further information, refer to the service manual OB227 REVISED EDITION-B.

19

Outdoor fan motor
turn OFF

Outdoor fan motor
turn ON

3. 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) The compressor cumulative operation time exceeds 40 minutes without the defrosting operation working.
b) The defrost thermistor RT61 reads - 3°C or less.
c) After releasing the high pressure protection 4 minutes and 15 seconds have elapsed.

(2) Releasing conditions of defrost

When the condition d) or e) is satisfied, the defrosting operation stops.
d) The defrost thermistor RT61 reads 3°C or more.
e) The defrosting time exceeds 10 minutes.

(3) Defrosting time chart

Defrost thermistor RT61
3: or more

-3: or less

Outdoor 52C contactor
(Compressor)

ON

OFF

X62
(Reversing valve.coil)

ON

15 sec.

30 sec.

OFF

30 sec.

5 sec.

SR61
Outdoor fan

ON

OFF

Defrost
counter

Indoor fan

ON
OFF

ON

Max 10 min.

NOTE1

VLo
OFF

Indoor vane

Position 1

Set
Position

NOTE1 : When the indoor coil thermistor reads above 18°C, indoor fan operates at VLo for 30 seconds.

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

NOTE2 : Refer to the Service Manual OB227 REVISED EDITION-B when MCFH-13NV- is connected with MXZ-32RV-

as multi system units.

E1E3

20

4. Reversing valve control

35

30

25

20

15

10

:

10 15 20 25 30 35

Set temperature

Initial room temperature

Set temperature and
initial room temperature in DRY mode

:

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

NOTE1 : The reversing valve reverses for 5 seconds right before start-up of the compressor.
NOTE2 : Refer to the Service Manual OB227 REVISED EDITION-B when MCFH-13NV- is connected with MXZ-32RV-

as multi system units.

E1E3

Compressor
Reversing valve

Outdoor fan

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

w Indoor fan continues to operate regardless of thermostat’s OFF-

ON at set speed.

w Coil frost prevention is as same as COOL mode of “I FEEL

CONTROL”.

9-3. DRY ( ) OPERATION

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

OPERATION INDICATOR lamp of the indoor unit turns on with a

beep tone.
(2) Select DRY mode with the OPERATION SELECT button.
(3) The microprocessor reads the room temperature and determines

the set temperature. Set temperature is as shown on the right

chart.

Thermostat (SET TEMP.) does not work.

The other operations are as same as DRY mode of “I FEEL

CONTROL”.
(4) DRY operation will not function when the room temperature is 13°C or below.
(5) When DRY operation functions, the fan speed is lower than cool operation.

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, reversing valve control are the same as HEAT mode of “I

FEEL CONTROL”.

ON
OFF

ON
OFF

ON
OFF

(COOL / DRY)

5 sec.

(HEAT)

5 sec.

ON
OFF

ON
OFF

ON
OFF

21

9-5. AUTO VANE OPERATION

1

2

3

4

5

AUTO

4

1

1

2

3

4

5

(1) Vane motor drive

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

(2) Each time the VANE CONTROL button is pressed, angle of horizontal vane is changed in sequence, from 1, 2, 3, 4, 5

to AUTO.

(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 position 1.

2. In HEAT operation

Vane angle is fixed to position 4.

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

When the following cases occur, the 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 position 4 or 5 when the compressor cumulative operation time exceeds 1 hour, the
angle of horizontal vane automatically changes to Position 1 for dew prevention.

(7) SWING ( ) MODE

By pressing the SWING ( ) button, horizontal vane swings vertically between Position 1 and 5 in COOL and DRY
operation, between Position 2 and 4 in HEAT operation. The remote controller displays “”. If the VANE CONTROL(
) button or SWING ( ) button is pressed during SWING mode or the operation stops or changes to other mode,

SWING mode is released.

22

(8) Cold air prevention in HEAT operation.

Released

Cold Air Prevention

24: 28:

Position 1

Horizontal vane

Set position

When any of the following conditions occurs in HEAT operation, the angle of horizontal vane automatically changes to
Position 1 to prevent cold air blowing on users.

1 Compressor is not operating.
2 Defrosting is performed.
3 Indoor coil thermistor RT12 reads 24: or below.
4 Indoor coil thermistor RT12 temperature is raising from 24: or below, but it does not exceed 28:.

Indoor coil thermistor RT12 temperature

NOTE : If the temperature of RT12 reads from 24: to 28: at the air conditioner starting, this control works.

9-6. TIMER OPERATION

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 ON-TIMER, OFF-TIMER button to select the operation.

“ ” button ... AUTO START operation (ON 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 “ ” button is flashing.
These marks disappear in 1 minute.
After setting the ON timer, check that OPERATION INDICATOR lamp of the indoor unit lights.

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

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

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

● A power failure occurs.

● The circuit breaker functions.

2. Cancel

TIMER setting can be cancelled with the TIMER CONTROL buttons. (“ ” or “ ”)
To cancel the ON timer, press the “ ” button.

To cancel the OFF timer, press the “ ” 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 show the order of the OFF timer and ON timer operation.

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

➝

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

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

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

23

9-7. EMERGENCY-TEST OPERATION

When the remote controller is missing, has failed or the batteries run down, press the EMERGENCY OPERATION
switch on the front of the indoor unit. 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 runs at high
notch and the system is in continuous operation. (The thermostat is ON)
After 30 minutes of test run operation the system shifts to EMERGENCY COOL or HEAT MODE with a set temperature
of 24˚C. The fan shifts to Me notch.
This operation continues until the EMERGENCY OPERATION switch is pressed again or the unit receives any signal
from the remote controller. In case of latter normal operation will start.
The coil frost prevention works even in this operation, and defrosting too.
In the test run or emergency operation, the horizontal vane operates in AUTO mode.

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

EMERGENCY
OPERATION switch

Press once <Cool>
Press again <Heat>

Press once again <Stop>

OPERATION INDICATOR lamp

9-8. 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 the auto restart P.C. board.

The “AUTO RESTART FUNCTION” sets to work the moment the power has restored after power failure. Then, the unit

will restart automatically. However if the unit is operated in “I FEEL CONTROL” mode before power failure, the operation
is not memorized. In “I FEEL CONTROL mode”, the operation is decided by the initial room temperature.

NOTE :

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

•If the 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.

24

10

Jumper wire

JPC

JPE

Change point

Defrost interval time changes from 40 minutes to 15 minutes
Deforst start temperature changes from -3: to 0:

Deforst finish temperature changes from 3: to 10:.

SERVICE FUNCTIONS

MCFH-13NV -

E3

10-1. COMPULSORY DEFROSTING MODE FOR SERVICE

By short circuit of the connector JP607 and R853 on the outdoor deicer P.C. board, defrosting mode can be
accomplished regardless of the defrost interval restriction. See Page 34.
Defrost thermistor RT61 must read below -3:.

10-2. CHANGE IN DEFROST SETTING

<JPC> when the JPC wire of the deicer P.C. board is cut, the defrost interval time will be changed. (See page 34.)
<JPE> when the JPE wire of the deicer P.C. board is cut, the defrost temperature will be changed. (See page 34.)

10-3. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board.
The time will be shortened as follows.
3-minutes time delay : 3-minutes → 3-seconds
AUTO START : 1 hour → 1-minute
AUTO STOP : 1 hour → 1-minute

Short the connector during the timer mode.

}

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;

“J1” and “J2” Jumper wires

NOTE : For remodelling, take out the

batteries at first.
After finish remodelling, put back
the batteries then push the RESET
button.

The P.C. board has the print “J1” and “J2”. Jumper wires are mounted to each “J1” and “J2”. Cut J1 and J2
according to the number of indoor unit as shown in Table 1.
After modification, push the RESET button.

Table1.

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

1 unit operation
No modification

2 units operation

Same as at left

Cut J1

3 units operation

Same as at left
Same as at left

Cut J2

No.4 unit

4 units operation

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

Cut 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. RELEASE OF AUTO RESTART FUNCTION

The jumper line is soldered with “JHA (Refer to page 33.)” on the indoor electronic P.C. board.
Remove the auto restart P.C. board from “Connector CN104”.

25

11

RTESET button

TROUBLESHOOTING

MCFH-13NV -

E3

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.

2) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the
components.

3) 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) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and
the components for bursting and discoloration.

3) When troubleshooting, refer to the flow chart on page 27 and the check table on page 28.

4. How to replace batteries

Weak batteries may cause the remote controller malfunction.
In this case, the remote controller can not be repaired only by the battery replacement. To operate the remote controller
normally, replace the batteries in the following order.
This remote controller has the RESET button. After refilling new batteries, press the RESET button with tip end of ball
point pen or the like, and then use the remote controller.

NOTE: INFORMATION FOR MULTI SYSTEM AIR CONDITIONER (OUTDOOR UNIT : MXZ-32RV- )

Multi system air conditioner (Outdoor unit: MXZ-32RV- ) can connect two or more indoor units with one outdoor unit.
According to the capacity, two or more units can operate simultaneously.

•When you try to operate two or more indoor units with one outdoor unit simultaneously, one for the cooling and the
other for heating, the operation mode of the indoor unit that operates earlier is selected. The other indoor units that
will start the operation later cannot operate, indicating as shown in the figure below. In this case, set all the indoor
units to the same operation mode.

Operation Indicator

E1

lighting

E1

flashing

•When indoor units starts the operation while the defrosting of outdoor unit is being done, it takes a few minutes
(max. 10 minutes) to blow out the warm air.

•In the heating operation, though indoor unit that does not operate may get warm or the sound of refrigerant flowing
may be heard, they are not malfunction. The reason is that the refrigerant continuously flows into it.

26

11-2. Instruction of troubleshooting

Start

Indoor unit
operates. Outdoor
unit doesn’t

Outdoor unit
operates in
only Test
Run
operation.

Check room
temperature
thermistor.

When the remote controller
is pressed or when the
EMERGENCY OPERATION
switch is pressed, the fan
does not rotate with
OPERATION INDICATOR

Refer to “Check of indoor
fan motor” on page 30.

A

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

Refer to
“Check of
outdoor unit”
on page 31.

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

Refer to
“Check of
receiver P.C.
board” on
page 30.

1-time flash

D

Cause:indoor/outdoor unit

Trouble of mis-wiring

(

Trouble of the serial signal

B

connecting

Refer to
“How to check mis­wiring and signal
error
(when outdoor unit
doesn’t work)”
on page 32.w1

E

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

2-time flash

2.5-second OFF

Cause:Indoor unit
2-time-Room

temperature/In
door coil
thermistor
trouble

Check indoor coil
thermistor. Refer to “Test
point diagram and
voltage” on page 33.

Indoor unit doesn’t
receive the signal from
remote controller.
Also, OPERATION
INDICATOR lamp doesn’t
flash, when the
EMERGENCY
OPERATION switch is

Refer to “Check of
indoor electronic control
P.C. board” on page 31.

6-time flash

Cause:outdoor unit
6-time-Replace the

Check room temperature
thermistor. Refer to “Test
point diagram and
voltage” on page 33.

C

2.5-second OFF

defrost thermistor

27

w1<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 mis-wiring”.

1. troubleshooting check table

w 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
temperatur
e
thermistor

Outdoor
power

3

system

❈

Defrost

4

thermistor

0.5-second ON

0.5-second OFF

1-time flash

2.5-second OFF

2-time flash

2.5-second OFF

5-time flash

6-time flash

2.5-second OFF

2.5-second OFF

Outdoor unit

does not run.

Outdoor unit
does not run.

Outdoor unit
does not run

Outdoor unit

does not run

When serial signal stops for 4
to 5 seconds after 1st on of
52C relay 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 compressor has
stopped due to over current
protection or start-up failure
protection 3 times in a row
within 1 min. after start-up.

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

● Check switch SW2-2.(MU type or MUH
type)

● Check wiring (visual check and
conductivity check).

● Check indoor electronic control
P.C.board.

● Check outdoor DEICER P.C. board.

● Check electrical parts.

● Check resistance of thermistor.

● Reconnect connector.

● Check indoor electronic control P.C.board.

● Check inverter and compressor.

● Check outdoor DEICER P.C. board.(MUH)

● Check outdoor control P.C. board. (MXZ)

● Check resistance of thermistor.

● Reconnect connector.

Out door
control
system

5

error

❈

Out door
refrigeran
t

6

system
error

❈

❈Those indications are shown only when the indoor unit connects with the outdoor unit MXZ-32RV- .

7-time flash

10-time flash

2.5-second OFF

2.5-second OFF

Outdoor unit
does not run

Outdoor unit
does not run

When the compressor
operation has been
interrupted by LEV protection
continuously 5 times, the
compressor stops operation.

● Check outdoor control P.C. board.

● Amount of gas.

● Outdoor control P. C. board.

● Contact of LEV board connectors.

E1

28

2. Trouble criterion of main parts

C

S

R

BLK

RED

WHT

P

BLK

RED

ORN

YLW

BLU

BRN

WHT

GRN
YLW

P

BLK

RED

WHT

MAIN
AUX

P

BRN

YLW

PNK
RED
ORN

BLU

ROTOR

MCFH-13NV -

E3

Part name

Room
temperature
thermistor

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

Indoor coil
thermistor

Measure the resistance with a tester.

Defrost

(Part temperature -10°C ~ 40°C)

thermistor

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

Check method and criterion

Normal

8kΩ ~ 20kΩ

Normal

5kΩ ~ 60kΩ

Figure

Abnormal

Opened or short-circuited

Abnormal

Opened or short-circuited

Compressor

Indoor fan
motor

Outdoor fan
motor

Normal

C-R

C-S

1.86~2.28Ω

3.50~4.29Ω

Opened or

short-circuited

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

Normal

Abnormal

WHT-BLK 175~190Ω
BLK-YLW 66.1~71.6Ω
YLW-BLU 45.6~49.4Ω

Opened or

short-circuited

BLU-BRN 30.2~32.7Ω

BRN-RED 21.9~23.8Ω

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

Normal

Abnormal

Abnormal

WHT-BLK

BLK-RED

155 ~ 191Ω
363 ~ 445Ω

Opened or

short-circuited

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

Vane
motor

Resistant per phase

Normal Abnormal

329~357Ω

Opened or

short-circuited

29

: INNER THERMOSTAT

P

A

● Re-install the unit away from lights.

● Attach a filter on receiving part.

Switch on the remote controller.

Is LCD display on the remote
controller visible?

Replace the batteries.(see page 26.)

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

Does the unit operate with remote controller?

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

Is noise heard from radio?

Replace the remote controller.

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

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

Is the voltage approx. 4V DC?

No
(5V DC or 0V DC)

Replace the receiver P.C. board.

No
(not clear)

Yes

Yes

No

OK

No

Yes

Yes

Yes

No

Replace the indoor electronic control P.C. board.

Replace the auto restart P.C. board.

Yes

Disconnect AUTO RESTART P.C. board from CN104
and short CN104 1 to 5.

Does the unit receive the signal
from the remote controller?

No

Check of indoor fan motor

Indoor fan does not operate.

Turn OFF the power supply.
Check connector (Fan motor) visually.

No

Reconnect the lead wires.

Check of remote controller and receiver P.C. board

B

Are lead wires connected?

Disconnect lead wires from connector (Fan motor) on indoor electronic control P.C. board.
Measure resistance between lead wires No.1 and No.4 and then No.3 and No.4 of the fan motor.

Yes

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

Repair the indoor fan motor.

Yes ( 0 or ∞ )

Is soldered point normal?

Yes

Replace the indoor electronic control
P.C. board.

No

(others)

No

Resolder it.

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

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

30

Check of indoor electronic control P.C. board

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.

Replace the fuse.

Is fuse(F11)blown?

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

Check of outdoor unit

D

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

Is varistor(NR11)burnt?

Replace the varistor.

Compressor and outdoor fan do not operate.

Yes

No

Replace the indoor electronic
control P.C. board.

No

Yes

Start

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

Check the continuity of indoor and outdoor unit
connection.

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

Yes

Yes

Check the indoor electronic control P.C.board.

Check the voltage to the
terminal block of outdoor
unit. Is there 220-240V
AC to the terminal block
between 2 - N ?

No

Check the voltage to the

terminal block of indoor
unit. Is there 220-240V
AC to the terminal block
between 2 - N ?

No

31

How to check mis-wiring and serial signal error (when outdoor unit does not work)

E

Start

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

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. Reconnect 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

1. Turn OFF the power supply.

2. Turn ON the power supply.

3. Press the EMERGENCY OPERATION switch.

Mis-wiring is indicated.(1-sec.ON,1-sec.OFF)

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

No

N

3

No

❈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.
(1-sec.ON, 2.5-sec.OFF)

Replace the indoor electronic control
P.C. board.

3 minutes later, when the EMERGENCY OPERATION switch is
pressed and 52C contactor turns ON, is there 220-240V AC between
the outdoor terminal block 2 and N ? ❈2

Yes

Is there 5V DC between J9 -J8 on the outdoor DEICER P.C.
board? ❈2

Is there 10V DC between both ends of R601? ❈2
(By tester, the stylus is between 5 ~10V)

Replace the outdoor DEICER P.C. board.

+

Yes

Yes

–

No

No

No

Rectify in-out connecting wire.

Check and rectify the fuse and varistor on
the outdoor 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.

32

DE00R697B

To the indoor
electronic control
P.C.board CN113

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

RT11

EMERGENCY OPERATION switch

TH113

CH313

GILMS

12

0

0

10

20

30

40

10 20 30 40 50 60

Temperature ( C)

Resistance (K')

TEST POINT DIAGRAM AND VOLTAGE
MCFH-13NV -

Indoor electronic control P.C. board

Fan motor power supply 220-240V AC

E3

VLo Me

Lo Hi

75643218

Fuse 250V AC 3.15A

Power supply
input 220-240V AC

+

12V DC

}

–

+

5V DC

–

}

JHA(Release of AUTO RESTART
FUNCTION. Refer to page 25.)

Room temperature
thermistor(RT11)

Time short point

Indoor coil thermistor (RT12)

33

MUCFH-13NV -

Outdoor deicer P.C. board

Outdoor fan motor

220-240V AC

}

E3

Solenoid coil
220-240V AC

}

R601
5~10V DC

}

+

INPUT
220-240V AC

}

Defrost thermistor(RT61)

}

}

12V DC

Fuse 2A/250V

Defrost interval
time short pin

Test point

+

J9

5V DC

}

J8

+

+

}

52C

12V DC

Jumper wire for change in
defrost setting (JPC, JPE)
(Refer to page 25.)

34

DISASSEMBLY INSTRUCTIONS12

<"Terminal with lock mechanism" Detaching points>

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.

(1) Slide the sleeve and check if there is a locking lever or not.

Sleeve

1Slide the sleeve.
2Pull the terminal while

Locking lever

12-1. MCFH-13NV -

E3

pushing the locking
lever.

INDOOR UNIT

OPERATING PROCEDURE PHOTOS

1. Removing the electronic control P.C . board.

(1) Pull out the upper part of the grill. (Photo 1)
(2) Remove the screws of the grill.
(3) Remove screws of terminal block cover.

Remove the terminal block cover and remove the terminal

block.
(4) Remove the screws of the electronic box cover.
(5) Pull out the electronic control P.C. board.

Photo 3

(2) The terminal with this connector is a terminal

with lock mechanism

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

Connector

Photo 1

2. Removing the indoor fan motor

(1) Remove the grill. ( Refer to 1(1) (2) )
(2) Remove the screws of the pipe support assembly.
(3) Remove the fan casing.(upper).
(4) Disconnect the connector of the indoor fan motor.
(5) Disconnect the ground wire of the fan motor.
(6) Remove the screws of the motor band and remove the

catch.

(7) Take out the sirocco fan and the indoor fan motor.

Photo 2

Photo 4

Fan casing
(upper)

Screws of the grill

Electronic box

Terminal box

Motor band

35

Indoor fan motor

Screws of the
motor band

Fan
casing(upper)

OPERATING PROCEDURE PHOTOS

3. Removing the indoor heat exchanger.

(1) Remove the grill. (Refer to 1(1) (2))
(2) Remove the screws on both side and in front of the front

panel. (Photo 5)
(3) Remove the screws of the nozzle assembly. (Photo 6)
(4) Remove the electronic box. (Refer to 1)
(5) Remove the indoor fan motor. (Refer to 2)
(6) Remove the screws of the motor support.
(7) Remove the fan casing. (Iower)
(8) Remove the installations of the drain pan and remove the

screws. (Photo 7)
(9) Remove the screws under the drain pan.(Photo 8)

)

(

Remove the drain pan.

10

(11)

Remove the indoor heat exchanger.

Photo 5

Screws of
the front
panel

Photo 6

Screws of

the nozzle

assembly

Photo 7

Photo 8

Installations and screws

36

Screws under
the drain pan

12-2. MUCFH-13NV -

OUTDOOR UNIT

OPERATING PROCEDURE PHOTOS

E3

1. Removing the cabinet

(1) Remove the screws of the top panel.
(2) Remove the screws of the service panel.
(3) Remove the screws of the cabinet.
(4) Remove the screws of the front panel and motor support.
(5) Remove the service panel, and remove the screw from

the insides.
(6) Remove the top panel.
(7) Remove the cabinet.

Photo 3

Screws of the
service panel

Screws of
the top panel

Service
panel

Photo 1

Screws
of the
cabinet

Photo 2

Screws of the front panel
and motor support

Screws of the cabinet

Screws of the
top panel

2. Removing the deicer P.C. board

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

deicer P.C. board.

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

Photo 4

Deicer
P.C. board

Screws of the
cabinet

Screws

37

Screw

Relay panel

Terminal
block

OPERATING PROCEDURE PHOTOS

3. Removing the propeller fan and the outdoor fan
motor

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

(4) Remove lead clamps and disconnect the outdoor fan motor

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

Photo 5

Set screws of the
outdoor fan motor

Propeller fan

Propeller fan nut

Hook

Outdoor

fan motor

Lead clamps

Outdoor
fan motor
connector

4. Removing the compressor

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

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

)

(

Remove the compressor.

10

NOTE

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

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

2

.

Photo 6

Glass
terminal

Compressor

Discharge pipe

Suction pipe

38

Compressor
set nuts

Terminal cover

PARTS LIST13

No.

Part No.

Part name Remarks

Symbol

in Wiring

Diagram

Q'ty/unit

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

E02 179 000
E02 179 010
E02 227 040
E02 179 100
E02 179 231
E02 227 235
E02 179 237
E02 179 238
E02 179 620
E02 215 700
E02 179 667
E02 138 667
E02 179 971
E02 179 972
E02 179 142
E02 227 303

FRONT PANEL(WH)
GRILLE(WH)
VANE(WH)
AIR FILTER
BACK PANEL(IN)
NOZZLE(WH)
FAN CASING(U)
FAN CASING(L)
INDOOR HERT EXCHANGER
DRAIN PAN
UNION(GAS)
UNION(LIQUID)
INSTALLATION METAL L
INSTALLATION METAL R
GRILLE CATCH(WH)
VANE MOTOR

{12.7
{6.35

3PCS/SET

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

MCFH-13NV-

E3 (WH)

MV

1718E02 257 426

E02 141 083

REMOTE CONTROLLER
REMOTE CONTROLLER HOLDER

1
1

MCFH-13NV - (WH)

E3

13-1. INDOOR UNIT

STRUCTURAL PARTS

3

16

13

1

4

2

9 5

6

UNION(LIQUID)

12

13-2. ACCESSORY P ART AND

REMOTE CONTROLLER

14

17

18

13-1. INDOOR UNIT STRUCTURAL PARTS

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

13-2. ACCESSORY P ART AND REMOTE CONTROLLER

10

UNION(LIQUID)

39

8711

13-3. INDOOR UNIT

ELECTRICAL PARTS AND FUNCTIONAL PARTS

MCFH-13NV - (WH)

6

5

7

E3

1

10

9

4

2

3

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

No. Part No.

1

E02 228 300

2

E02 179 500

3

E02 179 505
E02 227 375

4

E02 257 375

5

E02 215 328

6

E02 327 450

7

E02 324 452

8

E02 127 382

9

E02 227 468

10

E02 327 307

11

E02 336 385

INDOOR FAN MOTOR
SIROCCO FAN
FAN MOTOR RUBBER MOUNT
TERMINAL BLOCK
TERMINAL BLOCK

SWITCH & ROOM TEMPERATURE
THERMISTOR P.C. BOARD

ELECTRONIC CONTROL P.C. BOARD
AUTO RESTART P.C. BOARD
FUSE
RECEIVER P.C. BOARD
INDOOR COIL THERMISTOR
VARISTOR

Part name

Symbol

in Wiring

Diagram

MF

TB

F11

RT12
NR11

Q'ty/unit

MCFH-13NV- E3 (WH)

1
2
2
1
1

1

1
1
1
1
1
1

Remarks

RB4V25-

2PCS/SET
FigureA
FigureB

3.15A

40

13-4. OUTDOOR UNIT STRUCTURAL PARTS

MUCFH-13NV -

6

1

3

E3

2

11

413

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

No. Part No.

1

E02 336 232

2

E02 336 297

3

E02 336 521

4

E02 336 245

5

E02 141 900

6

E02 442 630
E02 156 936

7

E02 445 936

8

E02 139 662

9

E02 340 661

10

E02 340 290

11

E02 442 515

12

E02 075 506

13

E02 440 233

14

E02 444 961

CABINET
TOP PANEL
GRILLE(OUT)
SERVICE PANEL
COMPRESSOR
OUTDOOR HEAT EXCHANGER
CAPILLARY TUBE
CAPILLARY TUBE
STOP VALVE(LIQUID)
STOP VALVE(GAS)
BASE
MOTOR SUPPORT
COMPRESSOR RUBBER SET
BACK PANEL(OUT)
REVERSING VALVE

Part name

5

Symbol

in Wiring

Diagram

MC

10 912

Q'ty/unit

MUCFH-13NV-

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

E3

8

14

Remarks

RH-231VHAT

{3.0X{1.4X500
{3.0X{1.8X200
{6.35
{12.7

3RUBBERS/SET

41

MUCFH-13NV -

No. Part No.

Part name

Remarks

Symbol

in Wiring

Diagram

Q'ty/unit

MUCFH-13NV-

E3

RA6V33­30+/440VAC

250V 2A

1
1
1
1
1
1
1
1
1

1
2
3
4
5
6
7
8
9

PROPELLER FAN
OUTDOOR FAN MOTOR
COMPRESSOR CAPACITOR
TERMINAL BLOCK(OUT)
DEFROST THERMISTOR
DEICER P.C. BOARD
SURGE ABSORBER
REVERSING VALVE COIL
FUSE

MF

C1
TB

RT61

DSAR

21S4

F61

E02 336 501
E02 442 301
E02 079 353
E02 198 374
E02 440 310
E02 445 451
E02 128 383
E02 440 490
E02 095 382

1
2

10
11

DRAIN SOCKET
DRAIN CAP

E02 444 704
E02 444 705

E3

13-5. OUTDOOR UNIT

ELECTRICAL PARTS AND FUNCTIONAL PARTS

13-6. ACCESSORY PARTS

10

4

7

1

26

3

5

13-5. OUTDOOR UNIT ELECTRICAL PARTS AND FUNCTIONAL PARTS

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

11

13-6. ACCESSORY P ARTS

42

14

Remove the air
filter and the
deodorizing
filter together.

Separate the deodorizing
filter (gray sponge type)
from the air filter.

Remove the air
filter and the
air cleaning filter
together.

Separate the air
cleaning filter
(white bellow type)
from the air filter.

3m
5m

7m
10m
15m

[12.7

(1/2)

[27 [21

MAC-680PI
MAC-681PI
MAC-682PI
MAC-683PI
MAC-684PI

0

150
400

Pipe length

Cross-section

Part No.

A-Gas B-Liquid

Pipe size O.D mm (in.)

Insulation

DC

Additional
refrigerant

charge

R-22(g)

E3

MCFH-13NV-

[6.35

(1/4)

Model

Model

Part No.

MAC-1200FT

MCFH-13NV-

E3

MAC-1700DF

Model

Part No.

MCFH-13NV-

E3

OPTIONAL PARTS

14-1. REFRIGERANT PIPES

The air conditioner has flared connections its indoor and outdoor sides.
Please use the optional extension pipe as follows.

14-2. AIR CLEANING FILTER

● If the air cleaning filter is clogged, it may reduce the air conditioner capacity or cause condensation at the air outlet.

● The air cleaning filter is disposable. The standard usable term is about 4 months. However, if the color of the filter

turns to dark brown, replace soon.

14-3. DEODORIZING FILTER

● Clean the filter every two weeks. When it becomes too dirt, clean it more often.

● Replace the filter with a new one when its color can not be restored even after washing or when the filter becomes

dark.

● Standard interval for the filter replacement is about 1 year.

43

HEAD OFFICE MITSUBISHI DENKI BLDG.MARUNOUCHI TOKYO100-8310 TELEX J24532 CABLE MELCO TOKYO

CC

Copyright 1999 MITSUBISHI ELECTRIC ENGINEERING CO., LTD.
Issued in Jun. 1999. No.OB240 268
Printed in Japan

New publication, effective Jun. 1999.
Specifications subject to change without notice.