... unit can match heat recovery function and hot water tank, provide hot (sanitary) water . So,give user a integration air ... world famous fittings,high and low voltage protection device,water temperature protection,inside coil antifreezing and refrigerant anti-leak protection. ... 3)High enironmental adaptation Reasonable system design,good performance,inlet water temp. range: A: cooling:10-40 Deg C. B: ...