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4-4. Freeze Prevention (Cooling)
G This function prevents freezing of the indoor heat exchange coil.
G When the compressor has been running for 10 minutes 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.
T+1 ° C
Set temp. T ° C
Indoor heat exch.
coil temp.
–1 ° C
Compressor
Indoor fan
4-5. Overload Prevention (Heating)
G This function prevents overheating of the indoor heat exchange coil.
G When the temperature of the indoor heat exchange coil rises above 59°C, and if the indoor fan is L (low speed),
then the fan speed changes from L (low speed) to M (medium speed).
G When the temperature of the indoor heat exchange coil rises above 61°C, the outdoor fan stops.
Indoor heat
exch. coil
temp. ° C
Outdoor fan
Indoor fan
Compressor
Room temp.
6 minutes
More than
10 minutes
OFF
ON
Set speed
61
59
52
49
ON
H or M or L
More than
10 minutes
ON
ON
OFF
H © H, M © M, L © M
ON
12
Thermo. OFF
Thermo. ON
More than
6 minutes
OFF
ON
Set speed
ON
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