GEA Bock HG66e Series - Oil Separator

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10 | Accessories
Specialaccessoriesareonlypre-mountedinthefactoryiforderedspeciallybycustomer.Retrotting
is possible in full compliance with the safety instructions and repair instructions enclosed with the kits.
Information about the use, operation, maintenance and servicing of the components is available in the
printed literature or on the internet under vap.bock.de.
ATTENTION Capacity-regulatedoperationaltersthegasspeedsandpressure
ratiosoftherefrigeratingplant:Adjustthesuctionlineroutingand
dimensioningaccordingly,donotset the control intervals too
closeanddonotletthesystemswitchmorethan12timesper
hour(refrigeratingplantmusthavereachedastateofequilibrium).
Continuousoperationinthecontrolstageisnotrecommendedas
thegasvelocityintheplantsystemundercertaincircumstances
doesnotguaranteesufcientoilreturntothecompressorwith
activatedcapacityregulator.
Werecommendswitchingtounregulatedoperation(100%capac-
ity)foratleast5minutespercapacity-regulatedoperatinghour.
Anassuredoilreturncanalsoberealisedbya100%capacity
requirementaftereachcompressorrestart.
Electricalactuationofthesolenoidvalve:Normallyopen,(corre-
spondsto100%compressorcapacity).
WARNING Severalcapacityregulatorscannotswitchatthesametimeduring
compressoroperation!Otherwisethesuddenchangeinloadcan
damagethecompressor!Complywiththeswitchingintervalof60s.
• Complywiththeswitchingsequence:
Switching on LR1 60s LR2
Switching off LR2 60s LR1
Topreventoilslugging:
The oil return from the oil separator must be guided back at the intended connection (D1) on the
compressor housing.
A direct oil return into the suction line from the oil separator is not permissible.
Ensure that the oil separator is properly dimensioned.
10.2Oilseparator
ATTENTION Oilsluggingcanresultindamagetothecompressor.