Free-Cooling, Screw compressors and shell and tube exchanger
TO 1467 KW
TO 417 TON)
Aircooled liquid Chillers Free-Cooling with axial fans, Screw compressors and shell and tube exchanger
The liquid Chillers of the CRE-FCY 2230÷21430 series, with R134a refrigerant and FREE-COOLING technology, are specifically designed to maximize the energy efficiency on cooling of big size data centres.
During the cold months, in FREE-COOLING operating mode, the liquid returning from the system is cooled directly by forced convection of outdoor air through the condensing coil, thus saving energy by not operating the unit’s Screw compressors.
A 3-way valve system is controlled by the electronic microprocessor controller, allowing functioning in CHILLER, FREE-COOLING or MIXED (simultaneously CHILLER and FREE-COOLING) modes.
Units are featured as standard with an electronic proportional device that ensures efficient continuous functioning of the unit with outside air temperature down to –20°C.
On request, units can be supplied with R513A refrigerant.