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4 | Areas of application
4.1 Refrigerants
• HFKW / HFC:
• (H)FCKW / (H)CFC:
4.2 Oil charge
The compressors are filled at the factory with the following oil type:
- für R134a, R404A/R507, R407C, R407F
- für R22
Compressors with ester oil charge ( BOCK lub E55 ) are marked with an X in the type
designation (e.g. HGX44e/770-4).
ATTENTION The oil level must be in the
D
GB
4.3 Limits of application
F
ATTENTION Compressor operation is possible within the operating limits.
E
10
R134a, R404A/R507, R407C, R407F
R22
INFO
For refilling, we recommend the above oil types.
Alternatives: see chapter 9.4
visible part of the sight glass;
damage to the compressor
is possible if overfilled 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 140°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 supplementary cooling:
- U se only oils with high thermal stability.
- Avoid continuous operation near the threshold.
For operation with capacity regulator:
- Continuous operation, when the capacity regulator is activated,
is not permissible and can cause damage to the compressor.
- T he suction gas superheat temperature may need to be reduced
or set individually when operating near to the t hreshold.
- When the capacity regulator is activated, the gas velocity in the
system can not under certain circumstances ensure that suffi-
cient oil is transported back to the compressor.
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.
BOCK lub E55
BOCK lub A46
max.
oil level
min.
HG44e
~ ~
1,6 Ltr.
HG56e
~ ~
1,4 Ltr.
Fig. 4
Fig. 4
Fig. 4
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