GEA RedGenium, Operating Instruction

Page: 60 / 118

5.3.2 Refrigerator oils
Caution!
In order to ensure an adequate load-bearing capacity of the sleeve bearings
and to ensure the service life of the roller bearings, a minimum viscosity of
7cSt upstream of the compressor is required. A suitable oil must be care-
fully selected in consideration of the operating conditions.
► The selection criteria and selection tables are summarised in the techni-
cal information "GEO Grasso VHP". This technical information forms part of
the product documentation.
► GEA Refrigeration Germany GmbH can provide assistance in the selec-
tion of a suitable refrigerator oil on request.
Recommended oil type: CPI CP-1009-100
Please contact the manufacturer in case of other types of oil.
5.3.3 Secondary refrigerant
• Water, non corrosive, maximum 150 ppm Cl
• other approved fluids:
– Ethylene glycol based
–
Propylene glycol based
– Temper
– NH
3
solution
– Alcohols (e.g. Ethanol)
Notice
Compatibility with the materials used must be ensured for all secondary
refrigerants.
► Recommendation: Consult with GEA Refrigeration Germany GmbH in
specific use cases.
5.3.4 Heating agents
•
Water, non corrosive, maximum 150 ppm Cl
• Approved brines:
– Ethylene glycol based
– Propylene glycol based
– Temper
Notice
Prior to their use, compatibility with the materials used must be ensured for
other heat carrier.
► Recommendation: Consult with GEA Refrigeration Germany GmbH in
specific use cases.
Technical data
Operating media
L_151511_2
60 19.12.2019