1)LCD Control with induction key for Water Source Heat Pump Split Type/ water to water heat pump . 2) Electrical Auxiliary Heater 3/6/9kw for Water Source Heat Pump Split Type/ water to water heat pump 3)Time display( hour, date, year), real clock for Water Source Heat Pump Split Type/ water to water heat pump 4) Alarm system for Water Source Heat Pump Split Type/ water to water heat pump 5) Auto restart for Water Source Heat Pump Split Type/ water to water heat pump 6) Higher COP for Water Source Heat Pump Split Type/ water to water heat pump