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96446-09.2020-DGbFEIRu

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.

GEA Bock HG66e Series User Manual

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