Service Manual

Function of CTXS, FTXS, CDXS, FDXS, FVXS Series SiUS121502E
36 Function and Control
Frequency Limits The following functions regulate the minimum and maximum frequency:
Forced Cooling
Operation
Refer to page 178 for detail.
1.3 Airflow Direction Control (CTXS, FTXS, FVXS Series)
Power-Airflow
Dual Flaps
The large flap 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 flap retracts into the indoor unit. Then, cool air can be blown far
and distributed all over the room.
<Heating>
During heating operation, the large flap directs airflow downward to spread the warm air to the
entire room.
Wide-Angle
Louvers
The louvers, 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:
CTXS, FTXS Series
Frequency Functions
Low  Four way valve operation compensation. Refer to page 65.
High  Compressor protection function. Refer to page 66.
 Discharge pipe temperature control. Refer to page 66.
 Input current control. Refer to page 67.
 Freeze-up protection control. Refer to page 68.
 Heating peak-cut control. Refer to page 68.
 Defrost control. Refer to page 70.
Flap (up and down)
Louver
(right and left)
Cooling / Dry Heating Fan
07/09/12 class
15/18/24 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
˚