SEQUENCE OF OPERATION
PAGE 33
ENGLISH
Wiring Diagrams
25
Domestic Air Conditioner
, 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 47ć, recover to the normal control.
TC The compressor stops Fgh_t1 65
ć
Fgh_t1ˉ2
Fgh_t2ˉ2 N Decreasing the frequency rapidly Fgh_t2 59ć
P Decreasing the frequency slowly Fgh_t3 55
ć
Fgh_t3ˉ2
Fgh_t4—2 Q Prohibiting increasing the frequency Fgh_t4 51ć
R Increasing slowly Fgh_t5 47
ć
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
5.2.5.3 The control of preventing the overcurrent of the compressor˖
ƽDuring the starting process of the compressor, if the curren of the compressor is greater than 17A
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.
ƽDuring the starting process of the compressor, if the AC current is greater than 12A, the frequency
of the compressor decreases at the speed of 1HZ/second.
ƽDuring the starting process of the compressor, if the AC current is greater than 10A, the frequency
of the compressor decreases at the speed of 0.1HZ/second.
ƽDuring the starting process of the compressor, if the AC current is greater than 9A, the frequency of
the compressor increases at the prohibited speed.
ƽDuring the starting process of the compressor, if the AC current is greater than 8A, the frequency of
the compressor increases at the speed of no faster than 0.1HZ/second.
3. Compressor overcurrent protection
-
-
tion.
Model
Over
current
Point
Decline
Speed
Current 1
Decline
Speed
Current 2
Decline
Speed
Current 3
4. Anti-freeze protection of the indoor heat exchanger
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