Owner manual

D
GB
F
E
I
Ru
23
09912-01.2015-DGbFEIRu
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.
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.
INFO! Inordertoprotectthe compressor against inadmissible operating
conditions,high-pressureandlow-pressurepressostatscontrols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!
6.2 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.
6.3 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.