- Working temperature: general model 18-40;low temp model 10-40;high temp model 18-50. - Polar water chilled conditioner is designed for both industrial and business sectors. Available are water cooled packaged air conditioner, water cooled ceiling air conditioner, and water cooled split air conditioner. - Components are sourced from worlds leading manufacturers, ensuring stable, accurate, and long-lasting performance. - Condenser and Evaporator employ premium screw copper pipe that facilitates heat exchanging. Stable, durable, easy maintenance. Evaporator fin is made of high-performance thickened material. Ideal for adverse working conditions. - Refrigerant: R22 (also available are R407C/R410a/R134a/R404a) - Complete protection devices equipped include high pressure protection, low pressure protection, over current & over load protection, time delay, phase sequence protection, phase shortage protection, and water shortage protection, as well as interlocking protection.