nanog mailing list archives

Re: Effects of Cold Front on Internet Infrastructure - U.S. Midwest


From: Mark Tinka <mark.tinka () seacom mu>
Date: Wed, 30 Jan 2019 19:42:55 +0200



On 30/Jan/19 19:37, Naslund, Steve wrote:


 

A good HVAC team is critical because we have noted that the building
management systems often are not flexible enough to automatically deal
with super extremes and require some human intervention to tell them
to do things like run heat and cooling simultaneously.  Other actions
like closing down louvers on evaporators may or may not be automated
depending on your systems.  If any part of the system does fail in
these conditions you have to move super quick or you could get serious
damage fast.  Our biggest monitoring points are flow rate/pressure
(which could indicate a freeze up beginning or a pump failing), output
and return temp on the loops.


This was one of the things I was concerned about, fluids going smudgy or
just simply freezing up...

Mark.

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