GEA FK40/560 N Assembly Instructions Manual

Also see for FK40/390 K: Assembly instructions Maintenance manual Maintenance manual

Contents

GEA FK40/560 N Assembly Instructions Manual Manual pdf 15 page image

1509716-01.2013-DGbFEITrCnDGBFEITRCN5| Commissioning5.1 Preparations for start-up5.4 EvacuationFirst evacuate the system and then include the 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 theinstallation side.The compressor has undergone trials in the factory and all functions have been tested. There aretherefore no special running-in instructions.Check the compressor for transport damage!5.2 Pressure strength testDANGER! Bursting! The compressor must only be pressurised using nitrogen(N2). Never pressurise with oxygen or other gases!The maximum permissible overpressure of the compressor must notbe exceeded at any time during the testing process (see name platedata)! Do not mix any refrigerant with the nitrogen as this couldcause the ignition limit to shift into the critical range.The compressor has been factory-tested for pressure resistance. The following must be observed ifthe 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 testDANGER! Bursting!Do not mix any refrigerant with the nitrogen (N2) as this could causethe 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 correspondingsafety standard without including the compressor.