SiBE18-821_C Indoor Unit Control (RA Models)
Function 105
COMFORT
AIRFLOW
Operation
Wall Mounted Type E-Series, J-Series, G-Series
îš„
The fan speed is controlled automatically within the following steps.
Cooling: L tap – MH tap (same as AUTOMATIC)
Heating: ML tap – M tap ~ MH tap (depending on the model)
îš„
The latest command has the priority between POWERFUL and COMFORT AIRFLOW.
7.5 Program Dry Operation
Outline Program dry operation removes humidity while preventing the room temperature from lowering.
Since the microcomputer controls both the temperature and airflow rate, the temperature
adjustment and fan adjustment buttons are inoperable in this mode.
Detail The microcomputer automatically sets the temperature and airflow rate. The difference between
the room thermistor temperature at start-up and the target temperature is divided into 2 zones.
Then, the unit operates in the dry mode with an appropriate capacity for each zone to maintain
the temperature and humidity at a comfortable level.
Room thermistor
temperature at start-up
Target temperature
X
Thermostat OFF point
Y
Thermostat ON point
Z
24ºC or more
Room thermistor
temperature at start-up
X
–
2.5ºC
X
–
0.5ºC
or
Y + 0.5ºC (zone B)
continues for 10 min.
23.5ºC
X
–
2.0ºC
X
–
0.5ºC
or
Y + 0.5ºC (zone B)
continues for 10 min.
~
18ºC
18ºC X
–
2.0ºC
X
–
0.5ºC = 17.5ºC
or
Y + 0.5ºC (zone B)
continues for 10 min.
17.5ºC
~
Z
X
Y
Zone B
Zone B
Zone A = Thermostat OFF
Zone C = Thermostat ON
+0.5ºC
(R11581)