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–19–

• Deicing operation is controlled by timer and sensing the outdoor piping temperature.
• The first deicing starts only when the outdoor pipe temperature falls below -6°C after 45(30) minutes passed

from starting of heating operation.

• Deicing ends after 10(6) minutes passed from starting of deice operation or when the outdoor pipe temperature

rises over 12°C even if before 10(6) minutes.

• The second deicing starts only when the outdoor pipe temperture falls below -6°C after 45(30) minutes passed

from ending of the first deicing.

More than 45(30) minutes 

of heating operation

Within 

10(6) minutes

Deicing

Deicing

ON

OFF

ON

ON

ON

ON

OFF

OFF

COMPRESSOR

4-WAY VALVE

INDOOR FAN

-6

°

C

DEICE ON

12

°

C

DEICE OFF

The outdoor

piping Temp.

ON

More than 45(30) minutes 

of heating operation

HOT-

START

ON

OFF

ON

INDOOR FAN

Low Fan

Low Fan

Intake Air temp.

Setting temp. +1.0˚C

(Compressor ON)

Setting temp. -0.5˚C

(Compressor OFF)

Setting temp.

2min.58sec.

2min.58sec.

10min.

10min.

7min.

Within 7min. Cooling

Cooling

OUTDOOR FAN

COMPRESSOR

Selected

Fan

Selected

Fan

ON

ON

ON

ON

OFF

OFF

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

ON

ON

OFF

OFF

• During Soft Dry Operation, the compressor ON temperature is the setting temperature plus 1°C, the compressor

OFF temperature is the setting temperature minus 0.5°C.

• When the room temperature rises over the compressor ON temperature, the operation mode is switched to the

cooling mode.

• When the room temperature falls between the compressor ON temperature and OFF temperature, the operation

mode is switched to the Soft Dry Operation.
In this temperature range, 10min. Dry Operation, 7min operation OFF. During 10min Dry operation, if the room
temperature falls below compressor OFF temperature, Compressor OFF.

• In micom dehumidify mode, control of fan speed is as following.

If the te

mperature of the indoor coil is below 0°C after 7 minutes from starting the compressor, the

compressor and the outdoor fan is stopped, and then after 3 minute delay of the compressor and
the temperature of the indoor coil is over 7°C, the compressor and the outdoor fan is reoperated.
Indoor fa

n operates at low speed (comp. OFF) or at selected speed (comp. ON)

Once the inlet grille is opened during operation of the unit, the unit automatically stops operation and the
lamps will be turned-off. But memorized functions are still available.
When the inlet grille is closed again, the unit become waiting state for operation. From then, the unit can be
operated by forced operation button or Start/Stop button of remote controller.

• When pressing forced operation switch about 3 seconds, the unit operates in cooling mode at high speed fan

regardless of room temperature and resets in 18 min.

• During test operation, if remote controller signal is received, the unit operates as remote controller sets.

• When the power is restored after a sudden power failure while in appliance operation, the mode before the

power failure is kept on the memory and the appliance should be on the automatically operates in the mode
on the memory.

• Operation Mode that is kept on the memory

- State of Operation ON/OFF
- Operation Mode/Setting Temp/Selected airflow Speed
- Sleep Timer Mode/Remaining Time of Sleep Timer(unit of hour)

–20–

• If you lose wireless remote controller, you can operate the unit with forced operation switch.
• The standard conditions are as following.

• Unit operates in low fan mode for first 15 seconds, then switched to proper operation mode according to

intake Air temperature.

Heat pump Model

Room Temp

24°C

21°C Room Temp 24°C

Room Temp 21°C

Operation Mode

Cooling

Cooling

Soft Dry

Heating

FAN Speed

High

High

Soft Dry Rule

High

Setting Temp.

24°C

22°C

Air Intake Temperature

24°C

Cooling Model

R

Forced
Operation Button

Press the Forced Operation Button.

•Press the Forced Operation Button once
  again to stop operation. 

–21–

For normal operation after checking by test mode, you should press SW1 nine times for resetting or reconnect
the power cord. 

If the temperature of the indoor pipe is below 0°C after 7 mins from starting the compressor, the compressor
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.

Cut Off/Short  : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF)

• Coolling, Soft Dry, Fan, Heating 

• Timer Mode 

• Sleep Mode 

• Hot-start, Deice

• Coolling, Soft Dry, Fan, Heating 

• Timer Mode 

• Sleep Mode 

• Outdoor Unit Operating

–21–

For normal operation after checking by test mode, you should press SW1 nine times for resetting or reconnect
the power cord. 

If the temperature of the indoor pipe is below 0°C after 7 mins from starting the compressor, the compressor
and the outdoor fan is stopped, and then after 3 mins delay of the compressor and the temperature of the
indoor pipe is over 7°C, the compressor and the outdoor fan is reoperated.

Cut Off/Short  : Blinks on and off the operation mode LED. (0.5 sec ON/3 sec OFF)

• Coolling, Soft Dry, Fan, Heating 

• Timer Mode 

• Sleep Mode 

• Hot-start, Deice

• Coolling, Soft Dry, Fan, Heating 

• Timer Mode 

• Sleep Mode 

• Outdoor Unit Operating