Shinco KFR-25GWZ, BM Indoor heat exchanger anti-frozen, Outdoor heat exchanger anti-overheated

Shinco Service Manual

A-—E: rise the present frequency one class (for example, from F3 to F4)

F: Frequency keep unchanged

G：lower the present frequency on class( for example, from F4 to F3), and the maximum frequency is F3 in G area.

H：The compressor stops.

c. Frequency will change due to outdoor temperature, details see following fig.

4.3.2 Indoor heat exchanger anti-frozen

When indoor air sensor temperature is less than 3℃, the frequency will lower down to protect indoor heat exchanger. When indoor air sensor temperature is higher than 6℃ for more than 10 minutes, the air conditioner will return to former mode.

When indoor air sensor temperature is less than -1℃,the compressor will stop to protect indoor heat exchanger. When indoor air sensor temperature is higher than 6℃ for more than 10 minutes, the air conditioner will return to former mode.

4.3.3 Outdoor heat exchanger anti-overheated

When condenser temperature is higher than 54℃, the compressor frequency will be lowered down to protect the heat exchanger , and the outdoor fan runs in high speed. When condenser temperature lower down to 52℃, the compressor frequency rise up, and when the condenser temperature lower to 50℃ and keep for 5 minutes, and compressor frequency will rise to former value.

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