Indoor Unit Outdoor Unit CS-PS9NKV CS-PS12NKV CS ... - Panasonic

12.5 Low Pressure Prevention Control (Gas Leakage Detection)• Control start conditionso For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A.o During Cooling and Soft Dry operation:Indoor suction temperature – indoor piping temperature is below 4°C• Control contentso Compressor stops (and restart after 3 minutes).o If the conditions above happened 2 times within 20 minutes, the unit will:• Stop operation• Timer LED blinks and “F91” indicated.12.6 Compressor Tank Temperature Rise Protection Control• Control start conditionso For 5 minutes, the compressor continuously operates and outdoor total current is between 0.65A and 1.65A.o During Cooling and Soft Dry operation:• Indoor suction temperature -indoor piping temperature is below 4°C.• Indoor temperature and outdoor temperature is 30±5°C.• Remote Control setting 16°C and Hi Fan Speed.• Control contentso Compressor stops (and restart after 3 minutes)o If the conditions above happened 2 times within 20 minutes, the unit will:• Stop operation• Timer LED blinks and “F91” indicated.12.7 Low Frequency Protection Control 1• When the compressor operates at frequency lower than 24Hz continued for 20 minutes, the operation frequencywill be changed to 23Hz for 2 minutes.12.8 Low Frequency Protection Control 2• When all below conditions comply, the compressor frequency will changed to lower frequency.Temperature, T, for:Cooling / Soft DryIndoor intake air (°C) T < 15 or T ≥ 30Outdoor air (°C) T < 16 or T ≥ 38Indoor heat exchanger (°C) T < 3012.9 Outdoor Air Temperature Control• The compressor operating frequency is regulated in accordance to the outdoor air temperature as shown in thediagram below.• This control will begin 1 minute after the compressor starts.• Compressor frequency will adjust based on outdoor air temperature.38°CFreeLimited Frequency37°COutdoor air temperature52