The R1234ze option is available on the Italian manufacturers new Kappa Rev range. Unlike most, it has eschewed the use of the Turbocor compressor in favour of a “German-built” stepless screw compressor specifically developed for use with the new HFO refrigerant.
Significantly, Blue Box has also gone for an aluminium micro-channel heat exchanger for increased efficiency, superior corrosion resistance, lower refrigerant charge and 10% overall chiller weight reduction.
Units with two to four compressors are available in capacity ranges from 245-1229kW with freecooling options and EERs of up to 3.3.
The chiller also has in-built leak detection located in the compressor compartment and features a pump down function to enclose the refrigerant in the condensing coil.