GEA Bock HG34e Series User Manual

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6| Commissioning
6.1 Preparations for start-up
6.4 Evacuation
 Firstevacuatethesystemandthenincludethe compressor in the evacuation process.
 Relievethecompressorpressure.
 Openthesuctionandpressurelineshut-offvalves.
 Evacuatethesuctionanddischargepressuresidesusingthevacuumpump.
 Attheendoftheevacuationprocess,thevacuumshouldbe<1.5mbarwhenthepumpisswitchedoff.
 Repeatthisprocessasoftenasisrequired.
Thecompressorhasundergonetrialsinthefactoryandallfunctionshavebeentested.Thereare
thereforenospecialrunning-ininstructions.
Check the compressor for transport damage!
6.2 Pressure strength test
Thecompressorhasbeenfactory-testedforpressureresistance.Thefollowingmustbeobservedif
theentireplantissubjectedtoanadditionalpressurestrengthtest:
 TesttherefrigerationcircuitaccordingtoEN378-2oracorrespondingsafetystandard.
6.3 Leak test
CarryouttheleaktestoftherefrigeratingsysteminaccordancewithEN378-2oracorresponding
 safetystandardwithout including the compressor.
INFO
To protect the compressor against inadmissible operating conditions,
high pressure and low pressure pressostats are mandatory on the
installation side.
DANGER Risk of bursting!
The compressor must only be pressurised using nitrogen (N
2
).
Never pressurise with oxygen or other gases!
The maximum permissible overpressure of the compressor must
not be exceeded at any time during the testing process (see name
plate data)! Do not mix any refrigerant with the nitrogen as this
could cause the ignition limit to shift into the critical range.
DANGER Risk of bursting!
Do not mix any refrigerant with the nitrogen (N
2
) as this could
cause the ignition limit to shift into the critical range.
ATTENTION Do not start the compressor if it is under vacuum. Do not apply
any voltage - even for test purposes (must only be operated with
refrigerant).
Undervacuum,thespark-overandcreepagecurrentdistancesofthe
terminalboardconnectionboltsshorten;thiscanresultinwindingand
terminalboarddamage.

GEA Bock HG34e Series Specifications

General

Brand	GEA Bock
Model	HG34e Series
Category	Air Compressor
Language	English