[Dsg-htcc] HTCC Dry Air Purge

[nick markov]

after two hours of monitoring differential pressure seems to be stable at about 0.05.
Initial drop is when we open the output valve, then we gradually increased flow from 1.4 to 10 to 15 to 17.5 lpm.

> On Jan 4, 2017, at 3:34 PM, Will Phelps <wphelps at jlab.org> wrote:
> 
> Hello Everyone,
> I would like inform everyone that we are now purging the HTCC volume with dry air at 17.5L/min (subject to change) with the exhaust line open. Please do not close the exhaust or modify the flow rate. 
> Thanks,
> -Will
> 

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