Daikin FTX50GV1B - Fan Speed Control for Indoor Unit

SiBE041029EC Main Functions
Function and Control 22
1.4 Fan Speed Control for Indoor Unit
Outline Phase control and fan speed control contains 9 steps: LLL, LL, SL, L, ML, M, MH, H, and HH.
The airflow rate can be automatically controlled depending on the difference between the room
thermistor temperature and the target temperature.
Automatic Fan
Speed Control
In automatic fan speed operation, the step SL is not available.
= The airflow rate is automatically controlled within this range when the FAN setting
button is set to automatic
.
<Cooling>
The following drawing explains the principle of fan speed control for cooling.
<Heating>
In heating operation, the fan speed is regulated according to the indoor heat exchanger
temperature and the difference between the room thermistor temperature and the target
temperature.
Step Cooling Heating
LLL
LL
L
ML
M
MH
H
HH (POWERFUL)
(R6833)
(R6834)
Room thermistor temperature – target temperature
+1.5˚C
+0.5˚C
+2˚C
+1˚C
M
ML
L
Fan speed
(R12390)