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a. Patrol Sensor Control

• First 2 minutes from Patrol function activates is stabilization time, during stabilization time, no air dirtiness level is monitored.

The Air Dirtiness level is set to level 2.

• After that, gas sensor starts to record the resistance value at fixed interval. Higher resistance value indicates cleaner air.
• The air dirtiness level is monitored by comparing the current resistance value with maximum resistance value from time to time

to get the Air Dirtiness Value.

• There are 3 air dirtiness levels, based on the Air Dirtiness Value:

- Air Dirtiness level 0: Clean
- Air Dirtiness level 1: Moderate
- Air Dirtiness level 2: Contaminated

• Dirtiness level sensitivity adjustment

It is possible to change the gas sensor sensitivity, where the Threshold value (G1 ~ G4) will be shifted accordingly:

1. Press and release “SET” button.
2. Press “Timer increment” / “Timer decrement” button to select sensitivity. (Low 

 Standard (Default) 

 High)

3. Confirm setting by pressing “Timer Set” button. LCD returned to original display after 2 seconds.
4. LCD returned to original display if remote control does not operate for 30 seconds.

b. e-ion Control

• When dirtiness level is 1 or 2, e-ion operation starts.
• If dirtiness level improves from level 2 to level 1, the unit carries out level change after 60 seconds.
• When dirtiness level returns to level 0 continuously for 10 minutes or more, e-ion operation stops.

Dirtiness Level Shift
• For Auto Fan Speed, the fan speed increased based on dirtiness level:

c. Indoor Fan Control

• During any operation mode combines with Patrol operation, fan speed follows respective operation mode.
• During Patrol individual operation if e-ion starts, only Auto Fan Speed and no Powerful operation is allowed. Even if “Fan 

Speed” button is pressed, no signal is sent to air conditioner, and no change on LCD display.

• During Patrol individual operation if e-ion stops, Indoor Fan stop operation.

d. Airflow direction (Horizontal, Vertical) Control

• During any operation mode combines with Patrol operation, airflow direction follows respective operation mode.
• During Patrol individual operation if e-ion starts, only Auto Air Swing is allowed. Even if “Air Swing” button is pressed, no signal

is sent to air conditioner, and no change on LCD display.

• During Patrol individual operation if e-ion stops, Airflow direction louver closed.

e. Indicator

• When Patrol operation starts, Patrol Sensor indicator ON.
• When e-ion operation starts based on dirtiness level, e-ion indicator ON.

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g. Timer Control

• When ON timer activates when unit stops, previous operation resumes and restores last saved Patrol operation status.
• When ON timer activates during any operation, no change and carry on current operation.
• When OFF timer activates during any operation, all operation stops and the latest Patrol operation status is saved.

h. Power failure

• During Patrol individual operation, if power failure occurs, after power resumes, Patrol individual operation resumes 

immediately.

• During combination operation, if power failure occurs, after power resumes combination operation resume immediately.

i. Error Detection Control

• The Patrol error detection control starts once the power is supplied to Patrol sensor. However, the error will display when the

Patrol operation is ON.

• Error detection method:

1. If the Patrol sensor feedback is 0V or 5V continuous for 6 hours, Patrol sensor error occurs. However, the error will display

only when the Patrol operation is ON.

• Patrol Sensor Control after error occurs.

1. During any operation mode combines with Patrol operation

• Power supply to Patrol sensor is OFF.
• Air conditioner normal mode operation continues with Patrol LED and Timer LED blinking and “H58” is indicated.
• Timer LED will always blinking and the Patrol LED continues blinking if the Patrol operation is ON and stops blinking if the

patrol operation is OFF.

2. During Patrol individual mode.

• Power supply to Patrol sensor is OFF.
• Patrol LED and Timer LED blinking and “H58” is indicated.
• Timer LED will always blinking and the Patrol LED continues blinking if the Patrol operation is ON and stops blinking if the

patrol operation is OFF.

• Error cancel condition:

1. Power supply reset.

This operation provides clean air by producing negative ions to attract dust captured at the positively charged e-ion filters.

f. Remote Control Receiving Sound

• Normal Operation
• Patrol Mode
• Patrol Mode
• Stop

o

o

o

o

Patrol Mode
Stop
Normal Operation
Patrol

:
:
:
:

Beep
Long Beep
Beep
Beep

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a. e-ion operation start condition

• During unit running at any operation mode, if “e-ion” button is pressed, combination operation (operation mode + e-ion

operation) starts.

• During unit is OFF, if “e-ion” button is pressed, e-ion individual operation starts.

b. e-ion operation stop condition

• When “OFF/ON” button is pressed to stop the operation.
• When “e-ion” button is pressed again.
• When “Patrol” button is pressed.
• When OFF Timer activates.

c. e-ion operation pause condition

• When indoor fan stop (during deice, odor cut control, thermostat off, etc.). e-ion operation resume after indoor fan restarts.
• When indoor intake temperature   40

qC. e-ion operation resume after indoor intake temperature < 40qC continuously for 30

minutes.

a. Indoor fan control

• During any operation mode combines with e-ion operation, fan speed follows respective operation mode.
• During e-ion individual operation - only Auto Fan Speed and no Powerful operation is allowed. Even if Fan Speed button is

pressed, no signal is sent to air conditioner, and no change on LCD display.

Auto Fan Speed for e-ion operation switches between HLo and CLo at pattern below:

b. Airflow direction control

• During any operation mode combines with e-ion operation, airflow direction follows respective operation mode.
• During e-ion individual operation, only Auto Air Swing is allowed. Even if Air Swing button is pressed, no signal is sent to air

conditioner, and no change on LCD display.

c. Timer control

• When ON timer activates when unit stops, previous operation resumes and restores last save e-ion operation status.
• When ON timer activates during any operation, no change and carry on current operation.
• When OFF timer activates during any operation, all operation stops and the latest e-ion operation status is saved.

d. Indicator

• When e-ion operation starts, e-ion indicator ON.

e. e-ion Check Mode

• To check if e-ion is malfunctioning, press “e-ion” button and follow by “Check” button to enter e-ion Check Mode and supplies

power to the e-ion Air Purifying System.

• If abnormal discharge is detected at filter (short-circuited) due to water or dust adhesion, etc., the e-ion indicator blinks

immediately.

f. Power failure

• During e-ion individual operation, if power failure occurs, after power resumes, e-ion individual operation resumes 

immediately.

• During combination operation, if power failure occurs, after power resumes, combination operation resume immediately.

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g. Error Detection Control

When e-ion indicator blink, it indicates error listed below:
i. e-ion Air Purifying system main connector to PCB is open:

Judgement Method

• During e-ion operation (include during Patrol operation), e-ion Air Purifying system main connector to PCB is opened.

Troubleshooting Methods

• Connect the connector or stop operation (include during Patrol operation) to cancel the blinking.

ii. Abnormal Discharge

Judgement Method

• During e-ion operation, when feedback voltage is -Lo (at microcontroller) is detected, it is judged abnormal discharge and

stops power supplies to the e-ion Air Purifying system.

• The unit retries after 30 minutes and repeat for 24 times. (not applicable for e-ion Check Mode)

Troubleshooting Method

• Press “e-ion” button or “OFF/ON” button to stop the operation and check the e-ion Air Purifying system main connector to

PCB.

• After that, press “e-ion” button again to confirm the e-ion indicator not blinking.
• The 24 times counter will be clear after 10 minutes of normal operation or when operation stops.

Error Reset Method

• Press “OFF/ON” button to OFF the operation.
• Press AUTO OFF/ON button at indoor unit to OFF the operation.
• OFF Timer activates.
• Press “e-ion” button during e-ion individual mode.
• Power supply reset.

iii. e-ion breakdown

Judgement Method

• When hi-feedback voltage (at microcontroller) supplied to filter during e-ion stop, due to PCB or filter’s high voltage power

supply damage.

• Operations except e-ion continue. Both Timer indicator and e-ion indicator blink.

Troubleshooting Method

• Press “e-ion” button or “OFF/ON” button to stop the operation.
• Change main circuit board or filter’s high voltage power supply.
• When lo-feedback voltage supplied to e-ion Air Purifying system during e-ion operation, e-ion indicator and Timer indicator

stop blinking.

• This operation helps to prevent decreases in room humidity while maintaining the setting temperature.
• During unit running at Cooling operation mode, if “Mild Dry Cooling” button is pressed, Mild Dry Cooling operation starts and Mild

Dry Cooling indicators turns ON.

• Mild dry cooling operation is unavailable when the unit is operating Auto mode, Soft Dry mode, Patrol individual operation or

e-ion individual operation.

• Mild dry cooling operation is cancelled when the unit turned OFF, or when the operation mode changed from Cooling to other

mode.

• Powerful, Quiet and Mild Dry Cooling mode cannot function at the same time, the unit will follows the operation according to the

last signal received.

• During this operation, the compressor frequency changes according to operating condition to prevent room humidity decreases

and when AUTO AIR SWING is set, the vertical airflow direction fixed at lower limit position.