Haier 1U25YEEFRA - Page 20

Functions and control
18 Domestic air conditioner
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
●
5℃, recover to the normal control.
TC(℃) The compressor stops
Fgh_t1 63℃
Fgh_t1－2
Fgh_t2－2 N Decreasing the frequency rapidly Fgh_t2
６０℃
P Decreasing the frequency slowly
Fgh_t3 57℃
Fgh_t3－2
Fgh_t4—2 Q Prohibiting increasing the frequency
Fgh_t4
52℃
R Increasing slowly
Fgh_t5 40℃
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 9A
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 8A, 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
than7A, the frequency of
the compressor decreases at t
he speed of 0.1HZ/second.
●During the starting process of the compressor, if the AC current is greater
than 6A, the frequency of
the compressor increases at the prohibited speed.
●During the starting process of the compressor, if the AC current is greater than
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 9A 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 than8A, 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
than7A, 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 th
an 6A, the frequency of