Airflow Direction Control; Fan Speed Control For Indoor Unit - Daikin CTX Series Service Manual

Main Functions
1.3

Airflow Direction Control

Power-Airflow The large flap sends a large volume of air downward to the floor and provides an optimum
Flap control in cooling and dry 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.
Wide-Angle
The louvers, made of elastic synthetic resin, provide a wide range of airflow that guarantees
Louvers
comfortable air distribution.
Auto-Swing The followings explain the auto-swing process for cooling, dry and fan:
1.4

Fan Speed Control for Indoor Unit

FTK(X) Outline
Phase control and fan speed control contains 5 steps: SL, L, M, H, SH.
The airflow rate can be automatically controlled depending on the difference between the room
thermistor temperature and the set temperature.
In heating mode, the indoor fan speed will be regulated according to the indoor heat exchanger
temperature and the difference between the room temperature and the required set
temperature.
Automatic Fan
In automatic fan speed operation, the step SL, & SH is not available.
Speed Control
set to automatic.
24
Class Cooling / Dry / Fan (A-B)
07/09/12
Step
L
M
H
= The airflow rate is automatically controlled within this range when FAN setting button is
Series Class
07
CTX 09
12
40 - 65
Cooling
SL L
142 ( C) / 195( H) 249
142 ( C) / 195( H) 249
142 ( C) / 195( H) 249
DAMA-SM-21-003
Heating (A - B)
45 - 90
Heating
M H SH
280 310 350
300 350 402
340 430 470
Functions and Control