GEA Bock HG12e CO2 - Manual (Page 8)

8
D
GB
F
E
96282-02.2015-DGbFEI
Evaporation temperature (°C)
Condensing temperature (°C)
Suction gas superheat (K)
R744
3| Areas of application
The compressors are filled at the factory with the following oil type:
GEA Bock C 85 E (only this oils may be used)
3.1 Refrigerants
•
CO
2
: R744
3.2 Oil charge
Fig. 5
Maximum admissible
operating pressure (g)
(LP/HP) 1) : 40/55 bar
1) LP = Low pressure
HP = High pressure
Unlimited
application range
max. oil level
min. oil level
Fig. 4
ATTENTION The oil level must be in the
visible part of the sight
glass; damage to the com-
pressor is possible if over-
filled or underfilled!
∆t
0h
= 10 K
ATTENTION Compressor operation is possible within the operating limits
shown in the diagrams. Please note the significance
of the shaded areas. Thresholds should not be selected as
design or continuous operation points.
- Max. permissible discharge end temperature 160°C.
- Max. permissible ambient temperature -30°C - +60°C
- Max. permissible switching frequency 12x /h.
- A minimum running time of 3 min. steady-state condition
(continuous operation) must be achieved.
For operation with frequency converter:
- The maximum current and power consumption must not be
exceeded. In the case of operation above the mains frequency,
the application limit can therefore be limited.
3.3 Limits of application