DC INVERTER AIR TO WATER HEAT PUMP split type 20KW heat output, Heating&Cooling Durable,Economical,High-COP CE,RoHS approval DC INVERTER R410A ... , flow switch, WILO water pump, plate heat Exchanger and inside connectionOutside unit with DC inverter R410a, electrical expansion valve, compressor heater, ... contact our Website or Company. Durable Air To Water DC INVERTER Heat Pump 20KW (split type)