Manual

09917-02.2015-DGbFEI

6| Commissioning

WARNING! Whenthecompressorisnotrunning,dependingonambient

 temperatureandamountofrefrigerantcharge,itispossiblethat 

the pressure may rise and exceed permitted levels for the

 compressor.Adequateprecautionsmustbetakentoprevent 

 thishappening(e.g.usingacoldstoragemedium,areceivertank,

 asecondaryrefrigerantsystem,orpressurereliefdevices).

6.1 Preparations for start-up

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!

6.4 Evacuation

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.

6.2 Pressure strength test

DANGER! Bursting! The compressor must only be pressurised using nitrogen

).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

) 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.