|
[DPRG] Re: Rs-232 Thermometer
Subject: [DPRG] Re: Rs-232 Thermometer
From: Ed Okerson
ed at okerson.com
Date: Wed Dec 19 15:07:52 CST 2007
David,
> Dan suggested at last night's RBNO that the system may be cycling in
> outside
> air at night. I'm going to log the data for a week or so and then take
> a hike over to the physical plant and see'f anybody there thinks this
> is normal --- it may well be. My limited knowledge of heat and air
> suggests that it is a real booger in big institutional buildings and
> a significant expense for the university.
Is this one of those big water cooled systems for the data center? Does
it share water with other systems? If so, those other systems might be
shut off or turned down during the night. That could cause all kinds of
strangeness in how the system reacts. Check other thermostats in the
building, especially programmable ones.
Ed Okerson
More information about the DPRG mailing list
|
