Areas Of Application; Refrigerants; Oil Charge; Limits Of Application - BOCK HGX22e S CO2 Series Assembly Instructions Manual

3 | Areas of application

3.1 Refrigerants

• CO : R744 (Recommendation CO2 quality 4.5 (< 5 ppm H
2

3.2 Oil charge

The compressors are filled at the factory with the following oil type:
Bock C 85 E (only this oils may be used)
ATTENTION Property damage possible.

3.3 Limits of application

ATTENTION Compressor operation is possible within the operating limits.
D
GB
F
E
t (°C)
C
15
10
5
0
-5
-10
-15
-20
-50 -45
Fig. 5
8
The oil level must be in the
visible part of the sight
glass; damage to the com-
pressor is possible if overfil-
led or underfilled!
These can be found in Bock compressor selection tool (VAP)
under vap.bock.de. Observe the information given there.
- Permissible ambient temperature (-20°C) - (+60°C).
- Max. permissible discharge end temperature 160°C.
- Min. oil temperature ≥ 30°C.
- Min. pressure gas temperature ≥ 50°C.
- Max. permissible switching frequency 8x /h.
- A minimum running time of 3 min. steady-state condition
(continuous operation) must be achieved.
For operation with frequency converter:
- Frequency range 25-70 Hz
- 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.
R744
?t = 10 K
Oh
-40 -35 -30 -25
O))
2
max.
oil level
min.
Evaporation temperature (°C)
Condensing temperature (°C)
Suction gas superheat (K)
Suction gas temperature (°C)
Max. permissible operating
pressure (LP/HP)
t (°C)
-20
-15 LP = Low pressure
1)
O
HP = High pressure
HGX22e S CO
~ ~
0,5 Ltr.
HGX34e S CO
~ ~
0,7 Ltr.
Fig. 4 Fig. 4 Fig. 4
Unlimited
application range
: 40/55 bar
1)
2
2