Computerised Control Circuit : Adopting IGBT Module, inverter model has more energy saving than normal evaporative cooling. Overload Protection • Overheat Protection • Waterlack Protection Drain Valve : To automatically drain hard & dirty water out 50,000 times super long life. Water Pump : Permanent magnet synchronous motor. Inlet Valve : Self regulating float valve to maintain required water level LCD Touch Screen Wall Controller : Big Blue backlit display with real time clock, live current display, dual temperature display, humidity display, auto ON/OFF, date & time clock.