GEA Bock HG22e A - Manual (Page 8)

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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.
- Permissible ambient temperature (-20°C) - (+60°C)
- Max. permissible discharge end temperature 140 °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 additional cooling:
- Use only oils that are highly thermally stable.
- Avoid continuous operation near the limits.
For operation with frequency converter:
- The potential control range of the compressor is 30-70 Hz.
- Max. permissible current consumption must not be exceeded.
At max. rotation speed therefore, the application limit can
be reduced.
- Use a thermal protection thermostat.
- Do not operate an additional capacity controller.
- Oil return at low frequency must be guaranteed.
- Consultation with GEA Bock.
For operation with capacity regulator:
- The suction gas superheat temperature may need to be
reduced or set individuallywhen operating near to the threshold.
When operating in the vacuum range, there is a danger of air
entering on the suction side. This can cause chemical reactions,
a pressure rise in the condenser and an elevated compressed-gas
temperature. Prevent the ingress of air at all costs!
3.3 Limits of application
3| Areas of application
The compressors are filled at the factory with the following oil type:
- for R134a, R404A/R507, R407C FUCHS Reniso Triton SE 55
- for R22 FUCHS Reniso SP 46
Compressors with ester oil charge (FUCHS Reniso Triton SE 55) are marked with an X in the type
designation (e.g. HG
X22e/190-4 A).
3.1 Refrigerants
• HFKW / HFC:
R134a, R404A/R507, R407C
• (H)FCKW / (H)CFC: R22
3.2 Oil charge
INFO! For refilling, we recommend the above oil types.
Alternatives: see lubricants table, Chapter 7.5.
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! ATTENTION!
max.
min.
0,7 Ltr. oil level
Fig. 4
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