... price 2.high quality 3.fast delivery water cooler detailsSDL series screw water chiller (low-temperature refrigerant) unit is ... specifications in total, with refrigeration range of air conditioning condition chosen between 101,450~1,565,250Kcal/h and ... air conditioner. Compared to ammonia refrigeration equipments, the cold water (low-temperature refrigerant) unit is safer, more automated with ...