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• Soft Dry operation can be set using remote control.
• Soft Dry operation is applied to dehumidify and to perform a gentle cooling to the room.
• This operation starts when the intake air temperature sensor reaches the setting temperature on the remote control.
• When operation begins, Soft Dry will be switched “ON” for a maximum 10 minutes, then Soft Dry operation will be turned “OFF”

for a minimum 6 minutes. After that, the Soft Dry operation will be “ON” and “OFF” based on the setting temperature as shown in
below figure.

• However after 3 minutes of compressor off, during Soft Dry “OFF” (within 6 minutes Soft Dry restart control), the indoor unit will

start to operate at normal Cooling mode if the intake temperature is higher than Cooling “ON” point.

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• Automatic operation can be set using remote control.
• This operation starts to operate with indoor fan at SLo speed for 25 seconds to judge the intake air temperature.
• After judged the temperature, the operation mode is determined by referring to the below standard.

• Then, the unit start to operate at determined operation mode, until it is switched off using remote control, with the setting

temperature as shown in below table.

• Operation mode will be determine again for judgement after 1 hour of operation, if the room temperature reaches to set

temperature and compressor off time is over 7 minutes 30 seconds continuously.

*

The present operation mode will be continued, if the room temperature does not reach to set temperature (Compressor keeps
running) eventhough after 1 hour from automatic operation mode started.

• Automatic Set Temperature

For each operation, set temperature will automatically set as shown below.

• The setting temperature for all the operations can be changed one level up or one level down from the standard temperature as

shown in below table by pressing on the temperature up or temperature down button at remote control.

Present

Mode

Judgement

Next Mode

Cooling

Soft Dry

Heating

Cooling

O

(Judgement:

23

°C & Above)

Not Applicable

O

(Judgement:
Below 23

°C)

23

°C

Cooling
Heating

Soft Dry

Not Applicable

O

(Judgement:

20

°C & Above)

O

(Judgement:
Below 20

°C)

20

°C

Soft Dry
Heating

Heating

O

(Judgement:

25

°C & Above)

Not Applicable

O

(Judgement:
Below 25

°C)

25

°C

Cooling
Heating

Operation

Hi

(Standard)

Lo

(+2

°C)

(±0

°C)

(-2

°C)

Cooling

27

°C

25

°C

23

°C

Soft Dry

24

°C

22

°C

20

°C

Heating

23

°C

21

°C

19

°C

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• The operation mode judging temperature and standard setting temperature can be increased by 2°C permanently, by open the

circuit of JX03 at printed circuit board indoor unit.

• When the thermo-off temperature (temperature which compressor stops to operate) is reached during:-

- Cooling operation - the compressor stops for 3 minutes (minimum) before resume operation.
- Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation.

• If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation

stop, although the unit is turn on again within the period.

• This phenomenon is to balance the pressure inside the refrigerant cycle.

• The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls between the

compressor ON temperature (A) and compressor OFF temperature (B) during the period.

• This phenomenon is to reduce the built up humidity inside a room.

• Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation although the intake air

temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON operation button at the
remote control is permitted.

• The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and return

back to the outdoor unit.

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• If the temperature of the indoor heat exchanger falls below 2

°C continuously for 4 minutes or more, the compressor turns off.

The fan speed setting remains the same.

• This phenomenon is to protect the indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form

returning to the compressor.

• Compressor will restart again when the indoor heat exchanger temperature rises to 10

°C (Recovery).

• Restart control (Time Delay Safety Control) will be applied in this Control if the recovery time is too short.

• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor

heat exchanger is 2.5

°C or less for continuous 2 minutes, compressor will stop and restart automatically.

• Time Delay Safety Control is activated before the compressor restart.

▲ T = Intake air temperature - Indoor heat exchanger temperature

• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.

• When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will start to oper-

ate at 1.6 second later.

• The reason of the difference is to reduce the starting current flow.

• Purpose is to prevent dew formation on indoor unit air discharge area.
• When room temperature is constant (±1°C) the following conditions occur for 30 minutes continuously, anti-dew formation will

activate:

- Remote Control setting temperature is less than 25°C.
- Compressor is on.
- Cooling operation mode.
-

Indoor Fan motor operate at Low fan speed or QLo.

• This control is cancelled immediately when above condition is changed.
• Anti-Dew formation is control by:

1. Increasing Air Flow Volume

a. Lo fan speed

Lo fan speed is changed to Lo+ after 30 min to prevent dew formation.