Service Manual

SiUS091133 Main Functions
Function and Control 30
Frequency Limits The following functions regulate the minimum and maximum frequency:
Forced Cooling
Operation
Refer to page 384 for detail.
1.3 Airflow Direction Control (FTXS Series)
Power-Airflow
Dual Louvers
The large louver sends a large volume of air downward to the floor and provides an optimum
control in cooling, dry, and heating operation.
<Cooling / Dry>
During cooling or dry operation, the louver retracts into the indoor unit. Then, cool air can be blown
far and distributed all over the room.
<Heating>
During heating operation, 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
comfortable air distribution.
Auto-Swing The following table explains the auto swing process for cooling, dry, heating, and fan:
Frequency Functions
Low  Four-way valve operation compensation. Refer to page 45.
High  Compressor protection function. Refer to page 46.
 Discharge pipe temperature control. Refer to page 46.
 Input current control. Refer to page 47.
 Freeze-up protection control. Refer to page 48.
 Heating peak-cut control. Refer to page 48.
 Defrost control. Refer to page 50.
Vertical Swing (up and down)
Horizontal Swing
(right and left)
Cooling / Dry Heating Fan
09/12 class
15/18/24/30/36
class
15˚
45˚
35˚
55˚
(R13527)
30˚
70˚
30˚
65˚
(R11402)
5˚
80˚
30˚
65˚
(R11403)
45˚
45˚
(R11404)
(R9303)
60
°
50
°
25
°
15
°
(R9304)
70
°
40
°
75
°
30
°
(R9305)
75
°
15
°
25
°
70
°
(R9306)
45
°
45
°