Airwell AWAU-YGD009-H11, Руководство по обслуживанию

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CONTROL SYSTEM
SM HGD-009/012 1-A.1 GB 11-9
11.12.1 Indoor Coil Defrost Protection
Conditions for Start Controlling
Judge the controlling start with the ICT (Indoor Coil Temperature) after 6min from operation start.
During cooling operation, the signals being sent from the indoor unit allow the operating frequency
limitation and then prevent freezing of the indoor heat exchanger.
Compressor will operate at reduced frequency when ICT
≤ 2
o
C
Compressor will stop when ICT ≤ -1
o
C for continuous 3 mins. And the indoor fan and louver will
remain at the original state.
Compressor will resume its original operation state when ICT
≥ 10
o
C AND Comp OFF time ≥ 3min
If the unit stops as such protection for 6 times, it can not resume running automatically and display
malfunction, it can resume by pressing ON/OFF.
11.12.2 Indoor Coil over Heating Protection
Conditions for Start Controlling
Judge the controlling start with the ICT after 2 sec from operation start.
During heating operation, the signals being sent from the indoor unit allow the operating frequency
limitation and prevent abnormal high pressure.
Compressor frequency is prohibited going up when ICT
≥ 53
o
C
Compressor will operate at reduced frequency when ICT ≥ 56
o
C
Compressor will stop when ICT ≥ 60
o
C. And the indoor fan will stop after residual heating blowing
function finished.
Compressor will resume its original operation state when ICT
≤ 50
o
C AND Comp OFF time ≥ 3min
If the unit stops as such protection for 6 times, it can not resume running automatically and display
malfunction, it can resume by pressing ON/OFF.
11.12.3 Outdoor Coil over Heating Protection
Conditions for Start Controlling
Judge the controlling start with the OCT after 2 sec from operation start.
During heating operation, the signals being sent from the outdoor unit allow the operating frequency
limitation and prevent abnormal high pressure.
Compressor frequency is prohibited going up when OCT
≥ 55
o
C
Compressor will operate at reduced frequency when OCT ≥ 58
o
C
Compressor will stop when OCT ≥ 62
o
C. And the indoor fan will run at preset speed.