SiEBE18-526 Indoor Unit (SkyAir Models)
Function 95
8.3 Function Details
Thermostat
Control
Freeze-up
Protection
Control
The thermostat turns OFF under the following temperature conditions to prevent freezing of the
indoor unit heat exchanger.
The motorized valve is controlled to maintain the indoor unit heat exchanger temperature
(Te) above 0°C.
The outdoor unit fan speed is reduced to prevent freeze-up protection control from activating
during cooling operation under low outside air temperature. (For details, see the section on
cooling operation under low outside air temperature.)
Cooling
Display
Heating
thermostat OFF
Cooling
thermostat OFF
(S1962)
Cooling
thermostat ON
Set temperature
-2.5 -2 +1 +2.5+20
16 17 18 19 20 21 22 23 24 25
Initial setting
25
25
25
25
25
26 27 28 29 30 31 32 33 34
-1
Heating
thermostat ON
Setting DisplayDisplaySetting
HeatingCool/Heat Automatic
Outdoor unit heat exchanger temperature
(Te)
Freeze prevention control
7°C
-1°C
-3°C
-5°C
(S1116)
Reset after 10 continuous minutes
Thermostat OFF after
40 cumulative minutes
Thermostat OFF after 1 continuous minutes
from 8 min. after starting (FHQ only)
Thermostat OFF after
1 continuous minutes from 8 min. after starting (FFQ only)
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