SiMT041311E Control SpecificationFunction and Control 502.5 Freeze-up Protection ControlDuring 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.)2.6 Heating Peak-cut ControlDuring heating operation, the indoor heat exchanger temperature determines the frequencyupper limit to prevent abnormal high pressure.Zone 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 cancelled.(R14746)Reset zoneIndoor heat exchangerthermistor temperatureUp zoneKeep zoneDropping zoneStop zone0˚C3˚C5˚C7˚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 cancelled.A (°C) B (°C) C (°C) D (°C) E (°C)54.5 51.5 48.5 46.5 44.0Indoor heat exchangerthermistor temperatureStop zoneDropping zoneKeep zoneUp zoneReset zone(R14645)D˚CC˚CB˚CA˚CE˚C
