... , three-wire electric valve, and heating or cooling two valves system. Main Function1. Working model selection: Cool, Heat, Ventilation2. ... , Medium, Low, Auto3. Working status memorizes when power supply loses4. The system can be set into four zones for one day5 ... FahrenheitWorking environments0~45°C, 5~95% RH(without dew)Power consumption< 2WPower supplyAC 85~260V,50/60HZLoad limitation2A with ...