dear all
i am overhauling NH3 system 280 tons(scew type). before i charged with NH3 and refrigeration oil(2 barells), i want to clean the piping and exchangers from rust and debrises; my inquiry is:could i charge the system with(air compressor oil) and run the compressor without charging it with NH3 for several hours ?then i drain the (air compressor oil )and charged with NH3 and refrigeration oil for normal operation.
thanks and all regards