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Shinco Service Manual
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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.