Freeze Prevention - Technibel GRV247M2C5VAA Technical & Service Manual

8-3. Freeze Prevention

This function prevents freezing of the indoor heat exchange coil.
When the compressor has been running for 10 minutes
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.
T+1 °C
Set temp. T °C
Indoor heat exch.
coil temp.
–1 °C
Compressor
Indoor fan
NOTE
*1) Functionally, compressor running period, or time are of two types, 10 minutes and 6 minutes depending upon
production date.
Room temp.
6 minutes
More than
*1)
10 minutes
OFF
ON
Set speed
*1)
or more and the temperature of the indoor heat
More than
*1)
10 minutes
ON ON
26
Thermo. OFF
Thermo. ON
More than
6 minutes
OFF
ON
Set speed