... R417A refrigerant 4. High COP Swimming pool heat pump water heaterSpecifications: Item/modelKYS-030RT-CXRated heating capacity( ... manufacturing process. HICOOL offers extensive range of commercial/central air conditioning system including non-refrigerant air conditioner, ... cooled chiller, water / ground source heat pump, air source heat pump, swimming pool heat pump, air / water cooled screw chiller, ...