Service manual

(4) VANE AUTO ( ) mode

In VANE AUTO mode, the microprocessor automatically determines the vane angle and operation to make the optimum

room-temperature distribution.

(6) Dew prevention

During COOL or DRY operation with the vane angle at Angle 2 ~ 5 when the compressor cumulative operation time

exceeds 30 minutes to 1 hour, the vane angle automatically changes to Angle 1 for dew prevention.

(5) STOP (operation OFF) and ON-TIMER standby

When the following cases occur, the horizontal vane returns to the closed position.

(a) When OPERATE/STOP (ON/OFF) button is pressed (POWER OFF).

(b) When the operation is stopped by the emergency operation.

Indoor coil thermistor RT12 temperature

NOTE : When 2 or more indoor units are operated with multi outdoor unit, even if any indoor unit turns thermostat off,

this control doesn’t work in the indoor unit.

Horizontal vane

Set position

Horizontal Position

39:24:

Released

Cold Air Prevention

(8) Cold air prevention in HEAT operation.

When any of the following conditions occurs in HEAT operation, the vane angle changes to Horizontal position automati-

cally to prevent cold air blowing on users.

① Compressor is not operating.

➁ Defrosting is performed.

➂ Indoor coil thermistor RT12 reads 24: or below.

➃ Indoor coil thermistor RT12 temperature is raising from 24°C or below, but it does not exceed 39:.

(7) SWING MODE ( )

By selecting SWING mode with VANE CONTROL button, the horizontal vane swings vertically. The remote controller

displays “

”

. SWING mode is cancelled when VANE CONTROL button is pressed once again.

(1) In COOL and DRY operation

(2) In HEAT operation

Vane angle is fixed to Angle 1.

When air comes out from upper

air outlet, vane angle is fixed to

Angle 4.

When air comes out from upper

and lower air outlets, vane angle

is fixed to Angle 2.

NOTE : The horizontal vane automatically moves in certain intervals to determine its position, and then it returns to the

set position.

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