WPA Techno

Air Cooled Industrial Chiller

Air Cooled Industrial Liquid Chiller

Liquid chillers designed for process cooling 24/7, 365 days a year, air cooled with two refrigerant circuits and scroll compressors installed in tandem/trio optimized for the use of R410A, plate/tube evaporator and cooling capacity from 160 kW to 550 kW.

Cosmotec experience in process cooling has led to the development of this range of industrial chillers able to meet the wide operating limits (both ambient and user side) required by the new technologies used for energy saving.

All chillers in the WPA range are characterized by high levels of energy efficiency (Class A or B) and compliance with the limits required by Directive 2009/125/EC Ecodesign ErP 2021.

The integrated Free Cooling version available for the WPA range also allows significant energy savings, especially in the case of installations in areas with cold or temperate climates.

Even in the Low Noise version, ideal for installations near residential areas, our units maintain high performance and high energy savings, ensuring low noise.

The Electronic Expansion Valve (EEV) optimizes temperature and pressure of gas evaporation, increasing the efficiency at partial loads on the user side and helping to extend the operating range of the unit.

The Microchannel condensers are entirely made of aluminium and expressly designed to maximize the performance of the chiller, and they allow to reduce the overall dimensions and to minimize the refrigerant charge. For a better resistance to corrosion, the e-coating protective treatment is available (option).

Eco-Friendly LOW GWP version

Upon request, WPA units are available with environmentally friendly R454B refrigerant fluid that provides a reduction in global warming potential (GWP = 467). Classified as A2L R454B is non-toxic but mildly flammable, in PED safety group 1.

Free Cooling for energy saving

WPA chillers are available in an integrated Free Cooling version, which allows a strong energy saving, especially in applications that require high temperatures of the cooling fluid (plastic, data centers) and installation in areas with cold or temperate climates. By exploiting the external air to cool the fluid, the Free Cooling system can even replace the cooling circuit entirely, thus allowing the deactivation of the compressors.

Depending on the climatic conditions, the WPA chiller will use the most suitable operating mode from:

  • Compressor Mode (DX): the heat load of the utility is met by the refrigerant circuit.
  • Mix Mode: reduces energy consumption by exchanging part of the thermal heat with the ambient air. This solution partializes the operation of the compressors, as they only have to produce the missing part of the cooling capacity.
  • Total Free Cooling: with low external air temperatures, the fluid is completely cooled by the ambient air. Energy consumption is minimized thanks to the operation of only the variable speed fans and the partializing valves.


  • ISO 9001
  • ISO 14001
  • ISO 50001
  • UL Certificate
  • EAC Air Conditioner
  • Certificate F.GAS

Wide operating limits

Each application has different needs based on ambient temperature, fluid temperature, positioning, sound level, etc. Cosmotec is capable to meet the most different needs, thanks to a wide range of options and the possibility to extend the operating limits of the WPA series chillers, if required.

  • Very hot and dusty environment: WPA chillers are equipped with metal air filters to protect the condensers from dust and dirt. Operation is up to +55 °C with Unloading function. 100% cooling capacity is guaranteed down to +45 °C. If the temperature rises, the Unloading function starts the compressors without shutting them down.
  • Very cold environment: the compressor compartment is closed and heaters are installed to protect the electrical cabinet, compressors, evaporator and the entire hydraulic circuit. Free Cooling is available down to -40°C (special version) with specially selected components to ensure long life to the whole chiller.
  • High temperature water applications (plastics): cooling circuit is specially designed to reach high discharge temperatures. The compressor has wide operating limits and high suction temperature.
  • Cold water applications (Food, Beverage, Biogas): the cooling circuit is designed to reach low discharge temperatures. The thickness of the thermal insulation is increased and the antifreeze system is standard to preserve the refrigerant and hydraulic circuits both in operation and stand-by mode.


Integrated hydronic unit (option)

The hydronic unit includes the main hydraulic components and is available in different configurations: with single or double centrifugal pump (WPA060 – WPA140), with high or low head, fixed speed or controlled by inverter and inertial storage (WPA060 – WPA140).


Due to its characteristics, the use of WPA Techno is particularly suitable in the following applications:

Food Beverage

Food & Beverage


Icona settore Biogas


Icona settore Farmaceutico


Contact Us

For any technical or price information on our air cooled industrial chiller WPA Techno, please fill in the form on the right and we will get back to you as soon as possible!

Information pursuant to art. 13 of the European Regulation on the processing of personal data (GDPR – EU Reg. 679/16)

Pursuant to art. 13 of the EU Regulation 679/16, we provide you with the following information on the processing that may take place following the completion and sending of the data in the form you are about to fill in.

The data in the form will be used to answer your questions. You can consult the complete information at this link.

By submitting the form you agree to the Privacy conditions, which can be consulted at this link.


This helps us to prevent spam, thank you.