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Only for training and service purposes
Part 2 Functions & Controls
5.9 Total Current Control (Over Current Protection)
5.9.1 9,12kBtu/h Model
1) CT1 control
• If the operating current reaches CT1, the operating frequency of the compressor decreases.
• After decreasing the operating frequency by 4Hz, if operating current is below I1 for 60 seconds continuously, the
operating frequency of compressor increases to setting frequency.
2) CT2 control
• If the operating current of the appliance reaches CT2, the compressor stops instantly and two minutes later the com-
pressor restarts again.
• If CT2 occurs 5 times within one hour, the appliance turns off and displays ERROR CODE 7.
Model CT 1 CT 1
CT 2
(kBtu/h) (Cooling) (Heating)
9 7.5A 9A 10A
12 7.5A 9A 10A