3.8 Frequency control when Td is too high
Purpose: make compressor frequency control if the discharging temp. is too high, to lower the discharging
temp. efficiently and ensure the system can run normally.
3.9 Frequency control when there is CT over current protection
1.0 I
0.95I
0.93I
0.90I
0.88I
0.85I
Stop immediately, if abnormal stop 3 times in 1 hour, the
unit will stop and alarm.
Reduce FQY rapidly 2HZ/S
Reduce FQY rapidly 1HZ/S
Reduce FQY slowly 1HZ/10S
Remain FQY
Increase FQY slowly 1HZ/10S
Dischar
gin
g tem
p. TD
If keeping for 10s, the unit stops, 3 minutes later, the unit can
re-startup. If in 60 minutesthe unit occurs alarm for 3 times, the
failure can be eliminated.
Reduce FQY rapidly 2HZ/S
Reduce FQY rapidly 1HZ/S
Reduce FQY slowly 1HZ/10S
Remain FQY
Increase FQY slowly 1HZ/10S
120
℃
115
℃
110
℃
105
℃
100
℃
95
℃
-52-
Commercial Air Conditioner
Model: AU18
/22
2XFERA
AS072/092/122XVERA
