Super Match
3.2.8 Frequency control when Td is too high
Purpose: make compressor frequency control if the discharging temp. is too high, to lower the discharging
temp. efîš¿ciently and ensure the system can run normally.
Discharging temp.
Td
Reduce
FQY rapidly 2HZ/S
Reduce FQY rapidly 1HZ/S
Reduce FQY slowly 1HZ/10S
Remain FQY
Increase FQY slowly 1HZ/10S
118℃
115℃
112℃
109℃
105℃
95℃
Unitary:
Multi:
Discharging temp. TD
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℃
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.
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.
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