GEA Bock HG44e Series - Operating mode of the lockable service connections

16
D
GB
F
E
96416-08.2020-DGbFEIRu
6 | Compressor assembly
Pipeconnection
Pipeconnection
6.7 Operatingmodeofthelockableserviceconnections
Fig.9
Openingtheshut-offvalve:
Spindle:turntotheleft(counter-clockwise)asfarasitwillgo.
—>Shut-offvalvecompletelyopened/serviceconnectionclosed.
Theconnectionwhichcannotbeshutoffisintendedforsafetydevices.
Fig.10
Openingtheserviceconnection
Spindle:Turn½-1turntotherightclockwise.
—>Serviceconnectionopened/shut-offvalveopened.
Theconnectionwhichcannotbeshutoffisintendedforsafetydevices.
Serviceconnection
closed
Connection
blocked
Spindle
Connectioncannot
beshutoff
Connectioncannot
beshutoff
Serviceconnection
opened
Spindle
Connection
open
Compressor
Compressor
Afteractivatingthespindle,generallytthespindleprotectioncapagainandtightenwith14-16Nm.
Thisservesasasecondsealingfeatureduringoperation.
For systems with long pipes and higher degree of contamination, a lter on the suction-side is
recommended.Thelterhastobebereneweddependingonthedegreeofcontamination(reduced
pressureloss).
Moisture in the refrigeration circuit can lead to crystal andhydrate formation. For this reason,we
recommendusingalterdrierandasightglasswithamoistureindicator.
6.8Suctionpipelterandlterdrier