GEA Grasso - Page 14

OPERATING INSTRUCTIONS
CO
2
/NH
3
CASCADE UNIT
250 - 1000 KW
14 _551511_om_kas_gbr_1_.doc
Cooling medium outlet
temp in °C
Manufacturer Oil grade Basis
Viscosity
at 40°C in
cSt
Flash
point in °C
Pour point
in °C
> -30,0 Mobil Gargoyle Arctic Oil 300 M 64 202 -40
> -30,0 Esso Zerice 46 M 46 204 -41
> -20,0 Petro-Canada Reflo 68A M* 58 236 -42
> -20,0 TEXACO Capella Premium M* 67 262 -42
> -40,0 Mobil
Gargoyle Arctic Oil C
Heavy
M 44 187 -50
> -40,0 CPI CP 4600-46 PAO
4
46 268 -51
> -40,0 Mobil
Gargoyle Arctic SHC
226E
PAO 67 266 -54
> -40,0 Mobil
Gargoyle Arctic SHC
326 (NH68 also)
AB + PAO 61 211 -54
> -40,0 Castrol Icematic 2294 PAO 69 233 -60
< -40,0
on request only
The screw compressors are fitted in the factory with suitable O-ring elastomers at the sealing points; these are
selected depending on the refrigerant and lubricant.
Refrigerant / oil M AB PAO, M* AB/ PAO
R717 (ammonia CR CR HNBR CR
CO
2
circuit
Manufacturer Trademark Oil grade O-ring material
Fuchs Reniso TRITON C 170 HNBR
The screw compressors are fitted in the factory with suitable O-ring elastomers at the sealing points; these are
selected depending on the refrigerant and lubricant.
4
Polyalphaolefin