Control Specification SiBE041010EA35 Function and Control3.6 Freeze-up Protection ControlOutline During cooling operation, the signal sent from the indoor unit controls the operating frequencylimitation and prevents freezing of the indoor heat exchanger. (The signal from the indoor unit isdivided into zones.)Detail The operating frequency limitation is judged with the indoor heat exchanger temperature.3.7 Heating Peak-cut ControlOutline During heating operation, the indoor heat exchanger temperature determines the frequencyupper limit to prevent abnormal high pressure.DetailA (°C) B (°C) C (°C)11 9 7(R14718)Reset zoneIndoor heat exchangerthermistor temperatureUp zoneKeep zoneDropping zoneStop zone0˚CC˚CB˚CA˚C13˚CZone ControlStop zone When the temperature reaches the stop zone, the compressor stops.Dropping zone The upper limit of frequency decreases.Keep zone The upper limit of frequency is kept.Up zone The upper limit of frequency increases.Reset zone The upper limit of frequency is canceled.A (°C) B (°C) C (°C) D (°C) E (°C)65 55 52 50 45Indoor heat exchangerthermistor temperatureStop zoneDropping zoneKeep zoneUp zoneReset zone(R14645)D˚CC˚CB˚CA˚CE˚C
