... mode:cooling,heating,cooling/heating+hot water,hot water only. Water Source Heat Pump multi-function typeCooling Capacity 4.5kw-75 ... material.CONDENSERHigh efficiency tube in tube heat exchanger, factory insulated with flexible close cell material.REFRIGERANT CIRCUITCopper tube ... which must be installed in factory,Source side water flow switch,Source side water pump,Anti-vibration rubber,Metallic ...