Haier AS25THMHRA-C Service Manual page 360

state). TC=indoor coil temp.
The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger. If the
temperature is higher than 63 ℃ , decrease the rotate speed of the compressor and do the high
temperature-preventing protection of the indoor heat exchanger; if the temperature of the indoor heat
exchanger is lower than 4
TC(℃)
Fgh_t1－2
Fgh_t2－2
Fgh_t3－2
Fgh_t4—2
Fgh_t5—2
Normal
N：Decreasing at the speed of 1HZ/1 second
P：Decreasing at the speed of 1Hz/10 seconds
Q：Continue to keep the last-time instruction cycle
R：Increasing at the speed of 1Hz/10seconds
Remarks: the outdoor unit
7.1.5.3 The control of preventing the over current of the compressor:
●During the starting process of the compressor, if the current of the compressor is greater than 12.5A
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 power is off.
●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 7.5A, 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.
7.1.5.4 The protection function of AC current:
During the starting process of the compressor, if the AC current is greater than 12.5A 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
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 7.5A, the frequency of
5℃, recover to the normal control.
●
Q Prohibiting increasing the frequency
R Increasing slowly
●
the compressor, if the AC current is greater than 9A, the frequency of the
●
The compressor stops
N Decreasing the frequency rapidly
P Decreasing the frequency slowly
●
18
Functions and control
(09K12K)
Fgh_t1 63℃/63℃
Fgh_t2 60℃/59℃
Fgh_t3 57℃/56℃
Fgh_t4 52℃/53℃
Fgh_t5 40℃/40 ℃
Domestic air conditioner