green cooling initiative: Best practice example

Product: Reciprocating compressor for subcritical CO2 application

Bitzer’s OCTAGON SL series of semi hermetic reciprocating compressors have cooling capacities ranging from 2.7 and 80 kW (–35° C/–5° C) for different subcritical applications.

Bitzer’s CO2 compressors have been boasting with an efficient suction gas-cooled motor, high-quality valve plates, wear-resistant drive gears as well as adjustable capacity control since 1988. The OCTAGON SL compressor series offers improved energy efficiency, and the application limits were pushed to a higher condensing temperature whilst the admissible pressure load was expanded on the high and low-pressure side (53/30 bar). 

Involved network members:

  • Transport Refrigeration, Industrial Refrigeration, Commercial Refrigeration BITZER Kühlmaschinenbau GmbH

    Compressors (piston, screw & scroll) and Condensing Units for energy efficient and climate-friendly systems in commercial and industrial refrigeration, air-conditioning and the transport sector.

OCTAGON Subcritical
Refrigerant R744 (CO2)
Cooling capacity 83,6 kW @ R744 -35/-5/-25 (to/tc/toh) @ 50Hz
Energy efficiency 4,18
Energy efficiency rating 4,18