24
5.2.5.3 The protection function of AC current:
During the starting process of the compressor, if the AC current is greater than 15A, 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 13A, 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 11A, the frequency o
f
the compressor increases at the prohibited speed.
During the starting process of the compressor, if the AC current is greater than 10A, 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.
(1)
When the outdoor environment temperature is higher than 40
, AC current protection value
decreases by 10AD
(2)
When the outdoor environment temperature is higher than 46
,AC current protection value
decreases by 15AD
(3)
When the outdoor environment temperature is higher than 50
,AC current protection value
decreases by 20AD
Functions and Control
Domestic Air Conditioner
When Tpg_indoor ice_temp_2 , the frequency of the compressor decreases at the speed of
1HZ/10seconds.
When Tpg_indoor begins to rise again, and ice_temp_2≤ Tpg_indoor≤ ice_temp_3
, the frequency
of thecompressor doesn’t change.
When ice_temp_3
Tpg_indoor ice_temp_3+3 , the frequency of the compressor increases at the
speed of 1HZ/10seconds.
For example, Tpg_indoor≤ 0
last for 2 minutes, and then the outdoor unit will stop, and report
underload malfunction, but don’t send malfunction report to the indoor.
The compressor stops for more than 3 minutes, Tpg_indoor> ice_temp_3+2
, the compressor
recovers.
When Tpg_indoor
ice_temp_1 , the frequency of the compressor decreases at the speed of
1HZ/1second.
11
//ice_temp_3+5
9
ice_temp_3+3
Increasing slowly
8
//ice_temp_3+2
Keeping the frequency
ice_temp_3 6
6
ice_temp_2 5 Decreasing slowly
ice_temp_1 3
Decreasing rapidly ice_temp_1
0
Stop
5.2.5.4 Antifreezing protection of the indoor heat exchanger
When refrigerating, prevent freezing.
Tpg_indoor is the minimum value of the effective indoor unit (start it and it is in accord with the
running state).
To Next Page
Loading...
Need help?
General
