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–18–

Outdoor  Unit  Wiring  Diagram

NOTE

BL  : BLUE
BK  : BLACK
BR  : BROWN
OR : ORANGE       GN/YL : GREEN/YELLOW

63H2

C  TH

20SV

52C

Cr

HIGH PRESSURE SWITCH FOR HEATING

THERMISTOR FOR PIPE TEMP.

REVERSING COIL

MAGNECTIC CONTACTOR

RUN CAPACITOR FOR CM 

TM

52F1

CM

Co

FMo

MAIN TERMINAL BLOCK

RELAY FOR FMo

COMPRESSOR

RUN CAPACITOR FOR FMo

OUTDOOR FAN MOTOR

F1

DP

CH1

THMO

52F2

FUSE (250V, 5A)

DEICER PCB

CRANK CASE HEATER FOR CM

THEMOSTAT FOR COOLING

RELAY FOR FMO CONTROL.

P/NO : 3854A30042L

RD  : RED
WH : WHITE
YL  : YELLOW

WIRING OF FIELD
(CONNECTING WIRE)

TM

POWER SUPPLY

BK

63H2

Cr

52C

CH1

BK

BK

BK

BK

L1

T1

L2

T2

B

A

WH

BK

TNS

NO

C  TH

NC

D.P

WH

T/B1

BK

WH

WH

BK

WH

BL BK

BK

RD

R

C

S

CM

YL

WH

WH

GN/YL

WH

BL

BK

1

(

N

)

2

(

L

)

Co

OR YL BL BK

OR YL BL BK

Co

FMo

1

FMo

2

20SV BK

BK

BK
BK

WH

YL

WH

YL

BL

BL

THMO

C

L

H

GN/YL

T

O

 I

N

D

O

O

R

3(N)

4(L)

5
6

7

7

8

52F2

1

2

3

4

5

6

7

8

52F1

1

2

3

4

5

6

F1

–19–

• 3min

¡ƒ

The compressor is ceased for 3minutes to balance the pressure in the refrigeration cycle.

(Protection  of compressor)

• 5sec

¡ƒ

Vertical air flow direction control louvers open in 5 seconds to prevent noise between louvers and wind.

• 30sec

¡ƒ

The 4-way valve is ceased for 30sec. to prevent the refrigerant-gas abnormal noise when the Heating 

operation is OFF or switched to the other operation mode while compress is off.

While compressor is running, it takes 3~5 seconds to switch.

• This function is to swing the louver up and down automatically.

• 'Filter' will display in the remote controller display when an air-filter is polluted. Then clean the air-filter for refer-

ence to Owners Manual.

• The indoor fan speed is automatically set to the low, so the shift of the indoor fan speed is impossible because of

already being set to the best speed for Dry Operation by Micom Control.

• When selecting the Cooling(    ) Mode Operation, the unit will operate according to the setting by the remote con-

troller and the operation diagram is as following

Intake Air temp.

COMP. ON
(SET TEMP.+0.5°C) 

COMP. OFF
(SET TEMP. -0.5°C)

More than

More than

3 minutes

3 minutes

Selecting

Selecting

Selecting

fan speed

fan speed

fan speed

COMPRESSOR

ON

OFF

ON 

OFF

ON

INDOOR FAN                                              

Low                                                   Low 

Intake Air temp.                   

Setting temp.+3°C

(Compressor OFF)

Setting temp.
(Compressor ON)

INDOOR FAN

Low

OFF         Low

Low

OFF

COMPRESSOR

ON

OFF

ON

OFF

ƒU

A point; While the indoor Heat-Exchanger temperature is higher than 35°C fan operates at low speed, when 

it becomes lower than 35˚C fan stops.

ƒU

B point; When the indoor Heat-Exchanger temperature is higher than 35°C, fan operates at seleted fan 

speed, when it becomes lower than 35°C, the fan operates at low speed for 10sec, after 10sec, it 

operates at seleted fan speed.

–20–

The unit will operate according to the setting by the remote controller and the operation diagram is shown as following.

Hot Start

Low

Selecting

Fan Speed

minimum  3min

Selecting fan

speed

minimum

10sec.

1min

A

A

minimum

1min.

minimum

10sec.

B

ƒU

The indoor fan stops until the evaporator piping temperature will be reached to 28°C.

ƒU

The operation diagram is as following.

PIPING
TEMPERATURE

1min

COMPRESSOR

INDOOR FAN

ON

26

°

C

: Selected Fan

: Low Fan

: Fan Stop

28

°

C

–21–

• Defrost operation is controlled by  timer and sensing the outdoor piping temperature.
• The defrost starts only when the outdoor pipe temperature falls below -6°C after 45 minutes passed from starting

of heating operation.

• Defrost ends after 9 minutes 30 seconds passed from starting of defrost operation or when the outdoor pipe

temperature rises over 12°C even if before 12 minutes.

More than 45 minutes 

of heating operation

Within 

9min. 45sec.

ON

OFF

ON

ON

ON

ON

OFF

OFF

COMPRESSOR

4-WAY VALVE

INDOOR FAN

-6

°

C ON

12

°

C OFF

The outdoor

piping Temp.

ON

More than 10 min. 

running of compressor

More than 45 minutes 

of heating operation

5sec.

HOT-

START

ON

• 'CHECK' will flash in the remote controller display when a problem occurs. Then please contact your dealer.
• Correct the accident point as shown in the table below before restarting operation.
• During the normal operation 'CHECK' won't be displayed in the remote controller.

Remote controller LCD

Accident Point

F

1

Indoor temperature thermistor error

F2

Indoor piping thermistor error

F3

Indoor/Outdoor unit communication error

F4

Water level float switch error