condensing unit use in many kinds of refrigerants such as R22, R134A,R404,R407C. condensing unitUsability:being used in many kinds of ... oil separator, high &lower pressure controller Usability: The compressor unit can for use in many kinds of refrigerants such as ... R22,R134a,R404,R407c.The same serial compressor unit,is suitable for different applications. Excellent functions: Equipped ...