Instruction Manual

16
D
GB
F
E
96246-07.2014-DGbRu
5| Commissioning
5.2 Pressure strength test
5.1 Preparations for start-up
5.3 Leaktest
5.4 Evacuation
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!
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 cau-
se the ignition limit to shift into the critical range.
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 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.
Carry out the leak test of the refrigerating system in accordance with EN 378-2 or a corresponding
safety standard without including the compressor.
ATTENTION Ifthecapacityregulatorismountedatthefactory,thecontrolcom-
ponent(pilotvalve)ismountedandconnectedsubsequentlybythe
customer.Ifthecontrolcomponentisnotconnected,thecylinderbank
isswitchedoffpermanently.Damagetothecompressorispossible!
See chapter 7.