BITZER has expanded the application limits of its semi-hermetic CSSH screw compressors which can now be used in large, industrial heat pumps.
Using electricity from renewable sources, electrically powered heat pumps now offer 100 per cent carbon-neutral operation thanks to the expanded application limits.
BITZER CSH screw compressors allow OEM system manufacturers to design next-level industrial heat pumps with a water-leaving temperature of up to 85 °C.
The capacity range of the approved CSH screw compressors extends from approximately 250 kW to around 1,000 kW heating capacity at 35 °C evaporation and 80 °C condensing temperature in economiser operation with the refrigerant R1234ze(E).
With its expanded application limits, the CSH series can now be operated with the refrigerants R134a, R513A and R1234yf at an evaporation temperature of up to 30 °C and a condensing temperature of up to 80 °C.
With R1234ze(E) and R515B, it can even reach an evaporation temperature of up to 40 °C and a condensing temperature of up to 93 °C.
BITZER has developed the expanded application limits on the basis of laboratory measurements and a series of tests with selected partner companies in recent years.
Heat pump manufacturers now have the compressor technology necessary to develop and produce large-scale, high-performance commercial and industrial heat pumps.
The new application limits are currently being integrated into the BITZER software. If users require assistance with calculation, they can get in touch with their BITZER contact.