SiUS041111 Main Functions
Function and Control 23
Frequency Limits The following functions regulate the minimum and maximum frequency:
Forced Cooling
Operation
Refer to page 222 for detail.
1.3 Airflow Direction Control
Power-Airflow
Louver(s)
The large louver sends a large volume of air downward to the floor and provides an optimum
control in cooling, dry, and heating mode.
Cooling / Dry Mode
During cooling or dry mode, the louver retracts into the indoor unit. Then, cool air can be blown far
and distributed all over the room.
Heating Mode
During heating mode, the large louver directs airflow downward to spread the warm air to the entire
room.
Wide-Angle Fins The fins, made of elastic synthetic resin, provide a wide range of airflow that guarantees a
comfortable air distribution.
Auto-Swing The following table explains the auto swing process for cooling, dry, heating, and fan:
COMFORT
AIRFLOW
Operation
09/12 class
The horizontal blade (louver) is controlled not to blow the air directly on the person in the room.
Frequency Functions
Low Four-way valve operation compensation. Refer to page 37.
High Compressor protection function. Refer to page 37.
Discharge pipe temperature control. Refer to page 39.
Input current control. Refer to page 40.
Freeze-up protection control. Refer to page 41.
Heating peak-cut control. Refer to page 41.
Defrost control. Refer to page 43.
Vertical Swing (up and down)
Cooling Dry Fan Heating
09/12
class
15/18/24
class
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