ZB Copeland compressor can be used for heat pumps, can be for R22,R404,R407. If you have any need, feel free to contact us The ZB series is optomized for high and medium temperature applications in the right choise for:1.Medium temperature:Cold rooms,beverage cooling, vegetable cooling,display cases,plastic molding.2.High temperature: Process cooling,milk production,grain drying, food preparation ...