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–8–

Hi Med Low

4

E

6

FMi

TRANS

WH

BL

BK

GN/YL

RD

OR

CN-TRANS2

PWB  ASM

CN-POWER

CN-TRANS1 CN-MOTOR

R

Y

-F

AN

R

Y

-4W

A

Y

R

Y

-COMP

CN-OUT

5

3

4

E

6

8

3

DC-12V

SIGNAL

GND

CN-REMO

P/NO ; 3854A90008U

INDOOR ELECTRIC CIRCUIT

NOTE

BL
BK
BR
OR

BLUE
BLACK
BROWN
ORANGE

:
:
:
:

RD
WH

Y L

GN/YL

RED
WHITE
YELLOW
GREEN/YELLOW

:
:
:
:

4

8

1

2

6

L3 L2 L1

0

R

C

S

1(L)    2(N)           

CAPACITOR

BL

RD

BL

BR

BL

BR

BL

BL

BK

BK

BL

BR

POWER

INPUT

1P,220-240V,50Hz

FUSE 5A

FUSE 5A

POWER
RELAY

COMP

CAPACITOR

OUTDOOR UNIT

INDOOR UNIT

YL

OR

OR

BK

BL

BK

BR

BR

BK

BK

YL

BK

WH

BL

BL

GN/YL

GN/YL

WH

FAN

MOTOR

( RD

)

( YL

)

( BR

)

5

COi

GN/YL

Remo.

CN-TH

EVA

TH

ROOM
TH1

–9–

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

(Protection  of compressor)

• 30sec:  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.

• 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

• A point;

While the indoor Heat-Exchanger temperature is higher than 40°C fan operates at low speed, when 

it becomes lower than 35˚C fan stops.

• B point;

When the indoor Heat-Exchanger temperature is higher than 42°C, fan operates at seleted fan 

speed, when it becomes lower than 39°C, the fan operates at low speed.

–10–

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

• The indoor fan stops until the evaporator piping temperature will be reached to 28°C.
• The operation diagram is as following.

PIPING
TEMPERATURE

1min

COMPRESSOR

INDOOR FAN

ON

28

°

C

: Selected Fan

: Low Fan

: Fan Stop

31

°

C

–11–

• 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 10 minutes passed from starting of defrost operation or when the outdoor pipe

temperature rises over 12°C even if before 10 minutes.

More than 45 minutes of

heating operation

Outdoor Pipe Temp.

Indoor Fan

Compressor

4-Way Valve

ON

ON

ON

ON

OFF

ON

OFF

HOT-

START

ON

ON

OFF

OFF

ON

12

°

C

(Defrost OFF)

-6

°

C

(Defrost ON)

Within 

10minutes

Defrost

Defrost

More than 45 minutes of

heating operation

• '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 unit & remote controller