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Service Manual
3 Other control function introductions
(1) Swing function (the unit is with up&down swing and left&right swing)
a. Up&down swing control
① After energization, swing motor will firstly have the horizontal louver rotate anticlockwise to position O to close air outlet. If swing
function has not been set after start-up of the unit, horizontal louver will turn clockwise to position D in heating mode, or turn clockwise
to position L in other modes.
② If swing function is set when turning on the unit, the horizontal louver will swing between L and D.
Horizontal louver has 7 swing statuses:
◆ Stay at position L: control by remote controller:
◆ Stay at position A: control by remote controller:
◆ Stay at position B: control by remote controller:
◆ Stay at position C: control by remote controller:
◆ Stay at position D: control by remote controller:
◆ Swing between L and D: control by remote controller:
◆ Stop at any position between L and D (angles between L and D are equiangular), control by remote controller: OFF
③ When turning off the unit, horizontal louver will close at position O.
④ Swing action is valid only when swing command has been set and the IDU fan motor is operating.
b. Left&right swing control
① After energization, swing motor will firstly have the vertical louver rotate anticlockwise to position O to close air outlet. If swing
function has not been set after start-up of the unit, vertical louver will turn clockwise to position D in heating mode, or turn clockwise to
position L in other modes.
② If swing function is set when turning on the unit, the vertical louver will swing between L and D.
Vertical louver has 7 swing statuses:
◆ Stay at position L: control by remote controller
◆ Stay at position A: control by remote controller
◆ Stay at position B: control by remote controller
◆ Stay at position C: control by remote controller
◆ Stay at position D: control by remote controller
◆ Swing between L and D: control by remote controller
◆ Stop at any position between L and D (angles between L and D are equiangular), control by remote controller: OFF
③ When turning off the unit, vertical louver will close at position O.
④ Swing action is valid only when swing command has been set and the IDU fan motor is operating.
(2) Sleep function
◆ If start up sleep function under cooling or drying mode, the system will increase set temperature automatically within 3℃ and then
operate at increased temperature.
◆ If start up sleep function under heating mode, the system will decrease set temperature automatically within 3℃ and then operate at
decreased temperature.
(3) Turbo function
Turbo function can be set under cooling and heating modes (Turbo function is not available in auto, drying and fan mode). During
operation of turbo function, the IDU fan motor operates at the highest fan speed.
(4) X-FAN function
X-FAN function can be set under cooling and drying modes (Turbo function is not available in auto, heating and fan mode). During
operation of X-FAN function, the IDU fan motor will stop operation after operating for 10 mins at lowest fan speed when turning off the
unit and then the system stops operation.
(5) Auxiliary heating function
When auxiliary heating function is set in heating mode: IDU fan motor operates and auxiliary electric heater operates; when ambient
temperature has reached a certain degree, the auxiliary electric heater stops operation.
(6) Timer function
The controller has timer function. The precision of timer is 0.5 hour. 24 hours circulated timer can't be set.
Timer ON: Timer ON can be set at unit OFF. If selected ON time is reached, the unit will start to operate according to previous setting
Technical Information
Set this position as starting point 0（0
L
A
B
C
，
，
，
D
L
A
B
，
，
，
Set this position as starting point 0（0
D
C
O
）
O
）
27
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