Free-cooling

Packaged air cooled chillers with integrated free cooling section are suitable for outdoor installation and can be used to cool glycol fluid solutions for air conditioning or in industrial applications.

The coupling of high-efficiency finned exchangers and the thermo physical purity of R410A refrigerant, particularly glide-free at state exchanges, allows this range to attain EER nominal values close to 3 with ESEER higher than 4,5 during mechanical working and is possible to achieve values of EER more than 25 on free cooling operation.

Multiscroll technology allows to reach great efficiency improvements at part load, if compared to the other traditional systems for cooling capacity control.
The integrated free cooling section allows to partially or totally recover cooling capacity from external air without big consumption of energy. Units are equipped with an additional coil crossed by the liquid to be chilled and invested by the complete air flow generated by the condenser fans.
As soon as the external air temperature is lower than the temperature of the fluid at the inlet of the unit (return from the plant), free cooling is going to be activated allowing the fans system to achieve the maximum cooling capacity recovered at the above conditions.
The benefit obtained by the free cooling system is much bigger as much lower is the external air
temperature in respect to the temperature value of fluid to be chilled. That’s why such kind of units are suitable to be installed on air conditioning and refrigeration plants located on places where the weather annual profile is characterized by medium and low external temperatures and where the cooling demand is significant and for long periods of time.

Available capacities from 80 to 600 kW. 

For more information ask our project managers.