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53
13.5.3 Horizontal Airflow (CU-E18RKUA CU-E24RKUA)
Automatic horizontal airflow direction can be set using remote control; the vane swings left and right within the
angles as stated below. For heating mode operation, the angle of the vane depends on the indoor heat
exchanger temperature as Figure 1 below.
Operation Mode Vane Angle (°)
Heating with heat exchanger temperature
A 68 ~ 112
B 90
Cooling and Soft Sry 68 ~ 112
Manual vertical airflow direction can be set using remote control; the angles of the vane are as stated below and
the positions of the vane are as figure below:
13.6 Quiet Operation (Cooling Mode/Cooling Area of Dry Mode)
Purpose
o To provide quiet cooling operation compare to normal operation.
Control condition
o Quiet operation start condition
When “Quiet” button at remote control is pressed.
Quiet LED illuminates.
o Quiet operation stop condition
When one of the following conditions is satisfied, quiet operation stops:
POWERFUL/QUIET button is pressed.
Stop by OFF/ON button.
OFF Timer activates.
POWERFUL/QUIET button is pressed again.
When quiet operation is stopped, operation is shifted to normal operation with previous setting.
When fan speed is changed, quiet operation is shifted to quiet operation of the new fan speed.
When operation mode is changed, quiet operation is shifted to quiet operation of the new mode.
During quiet operation, if ON timer activates, quiet operation maintains.
After off, when on back, quiet operation is not memorised.
Control contents
o Auto fan speed is change from normal setting to quiet setting of respective fan speed. This is to reduce
sound of Hi, Me, Lo for 3dB.
o Manual fan speed for quiet operation is -1 step from setting fan speed.
Indoor Heat Exchanger
Temperature
109.4°F
104.0°F
A: swing
B: fix front
0°
To p Vi e w
5
4
3
Figure 2
2
1
Figure 1
54321nrettaP
Airflow Direction
Patterns at Remote
Control
Vane Angle (° ) 90 68 78 102 112
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