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13.2. Protection Control For Cooling & Soft Dry Operation
13.2.1. Outdoor Air Temperature Control
• The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in the diagram below.
• This control will begin 1 minute after the compressor starts.
13.2.2. Cooling Overload Control
• Detects the Outdoor pipe temperature and carry out below restriction/limitation (Limit the compressor Operation frequency)
• The compressor stop if outdoor pipe temperature exceeds 63qC
• If the compressor stops 4 times in 20 minutes, Timer LED blinking (F95: outdoor high pressure rise protection)
13.2.3. Freeze Prevention Control
1. When indoor heat exchanger temperature is lower than 0qC continuously for 6 minutes, compressor will stop operating.
2. Compressor will resume its operation 3 minutes after the indoor heat exchanger is higher than 13qC.
3. At the same time, indoor fan speed will be higher than during its normal operation.
4. If indoor heat exchanger temperature is higher than 13qC for 5 minutes, the fan speed will return to its normal operation.
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