With the new GEA Grasso BluAstrum range, GEA presents highly efficient chillers with compact dimensions. The basic element of this range is a new generation of highly efficient screw compressors that achieve an excellent degree of efficiency for both full and partial loads thanks to speed regulation and variable Vi control. The intelligent user-friendly PLC control guarantees both maximum efficiency and low operating costs.

GEA Grasso BluAstrum offers a long-lasting and sustainable solution using the natural refrigerant R717. The series fulfils the highest expectations for meeting cooling and refrigerant requirements in the temperature range from -15 °C to 15 °C.

Technical features: Flooded expansion Refrigerant ammonia (R717) Plate heat exchanger as evaporator Separator as compact unit Optimised screw compressor with speed control as standard using a frequency converter All condensing unit designs possible (liquid-cooled, air, evaporation) Compact design Optionally with noise insulation housing Low refrigerant content (~90g/kW) Optimised percentage content of evaporator and condensing unit; best ESEER values

GEA Grasso BluAstrum
Model	Cooling capacity (kW) R717 12/6 °C	Condensing unit capacity (kW) R717 30/35 ℃
BluAstrum   500	592	695
BluAstrum   800	772	906
BluAstrum   900	892	1046
BluAstrum 1000 *	1140	1334
BluAstrum   1500	1424	1663
BluAstrum   1800	1768	2067

* The BluAstrum 1000 is available from 2011, other models will follow in 2012