SiBE05-722EE
Main Functions
Functions and Control
31
1.3
Airflow Direction Control
Auto-Swing
The following table explains the auto-swing process for cooling, dry, fan, and heating:
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 control, 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.
Up and Down
Cooling / Dry / Fan
Heating
Ceiling
Floor
40˚
20˚
(R2964)
(R2963)
95˚
65˚
(R2967)
40˚
20˚
(R2966)
95˚
65
˚
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)