Chillers & Heat Pumps GEA RedAstrum

Top performance, minimum footprint

GEA RedAstrum is the new series of standard ammonia heat pumps designed for an increasing demand of efficient heating solutions.

This new generation consists of four heat pump models based on the GEA Grasso M screw compressors H, L, M, N newly developed for 52 bar applications. The GEA RedAstrum transfers heat to a heating carrier at temperature levels between 55 to 80 °C which can be utilized in any industrial processes or fed into a district heating network.

Highlights & Technical Features:

  • Optimum performance
  • Compact footprint, comes in one piece
  • Natural refrigerant Ammonia (R717)
  • Maximum design pressure up to 52 bar(a)
  • Single screw compressor / single stage operation
  • Continuous capacity adjustment by VSD
  • Heating capacity appr. 600 to 2,000 kW
  • Hot water (glycol) supply up to 80°C
  • Heat source (secondary refrigerant) inlet between -7 and +40 °C
  • Heat source (secondary refrigerant) outlet between -10 and +37 °C
  • Fully welded shell & plate heat exchanger
  • Different plate materials available (acc. media requirements)
  • Subcooler if required
  • Combined heating and cooling possible
 
GEA RedAstrum
HEATING APPLICATION (heat source at ambient temperature level *)
GEA
RedAstrum
Heat
carrier (°C)
Heating
capacity (kW)
Cooling
capacity (kW)
COP 1)
heating
model inlet/outlet at 3600 rpm line
HE +40/+70
+70/+80
1120
1000
940
760
5.75
3.85
HG +40/+70
+70/+80
1320
1185
1120
915
5.95
3.95
MH +40/+70
+70/+80
1740
1545
1475
1200
6.00
4.10
ML +40/+70
+70/+80
2000
1700
1700
1305
6.10
3.90
* secondary refrigerant inlet / outlet +40 / +35 °C
GEA RedAstrum
COMBINED HEATING & COOLING APPLICATION (heat source at low temperature level **)
GEA
RedAstrum
Heat
carrier (°C)
Heating
capacity (kW)
Cooling
capacity (kW)
COP 1)
combined
model inlet/outlet at 3600 rpm line
HH +40/+65 770 560 5.75
LL +40/+65 890 650 5.85
MM +40/+65 1160 855 5.95
NN +40/+65 1430 1060 6.00
** secondary refrigerant inlet / outlet +12 / +6°C

1) COP = heating capacity / electrical consumption at net, COP combined = combined heating and cooling capacity / electrical consumption at net