GEA Bock HGZ Series - 3 Areas of Application; Refrigerants; Oil Charge; Limits Of Application

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3 | Areas of application
ATTENTION! Compressor operation is possible within the operating limits
shown in the diagrams. Please note the signicance
of the shaded areas. Thresholds should not be selected as design
or continuous operation points.
- 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:
- Use only oils with high thermal stability.
- Avoid continuous operation near the threshold.
With enterprise with output regulator:
- in the frontier sometimes reduction and/or individual attitude
of the suction gas overheating necessarily.
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.
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!
Thecompressorsarelledatthefactorywiththefollowingoiltype:
-forR404A/R507,R410A FUCHSRenisoTritonSE55
 -forR22 FUCHSRenisoSP46
Compressorswithesteroillling(FUCHSRenisoTritonSE55)aremarkedwithanXinthetype
designation(e.g.HGZX7/2110-4R404A).
3.1 Refrigerants
• HFC:    R404A/R507,R410A
• (H)CFC:   R22
3.2 Oil charge
3.3 Limits of application
INFO!
Forrefilling,werecommendtheaboveoiltypes.
Alternatives: seelubricantstable,Chapter8.5.
The oil level must be in the visible
part of the sight glass; damage
to the compressor is possible if
overfilled or underfilled!
ATTENTION!
Fig.6
max.oillevel
min.oillevel