Haier AS09/12GS2ERA Service Manual page 30

Remarks: the outdoor unit
5.2.6.3 The control of preventing the overcurrent of the compressor
During the starting process of the compressor, if the curren of the compressor is greater than 11A for
3 seconds, stop the compressor and alarm, after 3 minutes, start it again, if such state appears 3
times in 20 minutes, stop the compressor and alarm, and confirm the malfunction. Then continue to
run it only after the the power is off.
During the starting process of the compressor, if the AC current is greater than 8.5A, the frequency
of the compressor decreases at the speed of 1HZ/second.
During the starting process of the compressor, if the AC current is greater than 8A, the frequency of
the compressor decreases at the speed of 0.1HZ/second.
During the starting process of the compressor, if the AC current is greater than 7A, the frequency of
the compressor increases at the prohibited speed.
During the starting process of the compressor, if the AC current is greater than 6.5A, the frequency
of the compressor increases at the speed of no faster than 0.1HZ/second.
5.2.6.4 The protection function of AC current:
During the starting process of the compressor, if the AC current is greater than 9A, the frequency of
the compressor decreases at the speed of 1HZ/second.
During the starting process of the compressor, if the AC current is greater than 8A, the frequency of
the compressor decreases at the speed of 0.1HZ/second.
During the starting process of the compressor, if the AC current is greater than 7A, the frequency of
the compressor increases at the prohibited speed.
During the starting process of the compressor, if the AC current is greater than 6.5A, the frequency of
the compressor increases at the speed of no faster than 0.1HZ/second.
Remarks: when the outdoor temperature is high, there's compensation for AC current protection.
When the outdoor environment temperature is higher than 40 , AC current protection value
decreases by 1.0A
When the outdoor environment temperature is higher than 50 ,AC current protection value
decreases by 3.0A
5.2.6.5 Antifreezing protection of the indoor heat exchanger
When refrigerating/heating, prevent freezing.
Tpg_indoor
running state).
AS09/12GS2ERA 1U09/12BS1ERA-SM
is the minimum value of the effective indoor unit (start it and it is in accord with the
28
Function and control
Domestic Air Conditioner