7-4. Freeze Prevention (Cooling)
●
This function prevents freezing of the indoor heat exchange coil.
●
When the compressor has been running for 10 minutes
*1)
or more and the temperature of the indoor heat
exchange coil falls below –1°C, the control circuit stops the compressor for at least 6 minutes. The compressor
does not start again until the temperature rises above 8°C or 6 minutes has elapsed.
*1) Functionally, compressor running period, or time are of two types, 10 minutes and 6 minutes depending upon
production date.
NOTE
ON
ON
ON
ON
OFF
OFF
Set speed
More than
10 minutes
6 minutes
T+1
°
C
Indoor heat exch.
coil temp.
–1
°
C
Compressor
Indoor fan
Room temp.
Thermo. OFF
Thermo. ON
Set temp. T
°
C
More than
10 minutes
More than
6 minutes
Set speed
*1) *1)
37
