Owner manual

15
09704-09.2013-DGbFITrCn
D
GB
F
I
TR
CN
5| Commissioning
5.1 Preparations for start-up
5.4 Evacuation
 Firstevacuatethesystem andthenincludethe compressor in the evacuation process.
 Relievethecompressorpressure.
 Openthesuctionanddischargeline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theprocessasoftenasisrequired.
INFO! To protect the compressor against inadmissible operating conditions,
high-pressure and low-pressure pressostats are mandatory on the
installation side.
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!
5.2 Pressure strength test
DANGER! 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.
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.
5.3 Leak test
DANGER! Bursting!
Do not mix any refrigerant with the nitrogen (N
2
) as this could cause
the ignition limit to shift into the critical range.
CarryouttheleaktestoftherefrigeratingsysteminaccordancewithEN378-2oracorresponding
 safetystandardwithout including the compressor.