Water coolers PED certificated, with water / air condensation and axial fans complete with optional "Free-cooling"section to guarantee a high energy saving.

The range includes models that covera refrigeration capacity ranging from1 to 1500 kW. Compact chillers are for outdoor installation.

The range has beende-signed for use both in the processand comfort sectors. The machines areequipped with all the components that ensure automatic cooling of water ora water/glycol solution.

To guarantee maximum operating safety the units have (or can have) two completely independent refrigeration circuits. All units are supplied with a full oil and refrigerant load afterhaving been factory tested.

The chillersare divided in two product ranges: chillerswith scroll compressors and chillers with screw compressors. For scrolls refrigerants used are R407C/R410A/R404A, while for screw compressors refrigerants areR407C/R134a/R404A.

Models where scroll compressors are used are installed with shell and tube evaporators or plates  evaporators (or coaxials). Models with screw compressors are installed with shell and tube evaporators, with optional opportunity of high efficiency evaporators forR134a refrige-rant, which reach energetic class A.

Big water Chillers available with Inverter Technology and Free-Cooling Function.Our free cooling system is managed to maximize heat exchange and guarantees heat extraction no matter whatthe external environmental conditions or process load. Our use of modulating free cooling valves, combined with ourvariable speed fans allows us to reach the best solution in any climatic conditions, from -40ºC winter temperatures to summer temperatures in excess of 50ºC. Evaporators can be plates type or shell and tubes type (orcoaxial).

Shell and tube are built for maximum exchange of heat between the refrigerant and the fluid to chill. The outer shell is completely insulated with a closed cell Anticondensate sheet. Shell and tubes evaporators can be inspected (optional for some models), chillers with R134a refrigerant are at high efficiency normally considering for heat exchange fouling factors for water (glycol) as 0.043m²K/kW (0.086 m²K/kW). Chillers are designed to consider a water velocity until 1.5 m/s.  

For information, you can send email to skaya@polmakplastik.com or

you can send message by Whatsup to +90 532 613 8359