[CAUT] large and rapid humidity changes!

[Jim Busby]

John,

What rooms (size) were these in? Why is one graph "smoother" or less
"jerky" than the other?

Boy, I'll never complain about our building again. (as much...)

Jim Busby BYU

-----Original Message-----
From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of
John Minor
Sent: Monday, November 27, 2006 1:00 PM
To: caut at ptg.org
Subject: [CAUT] large and rapid humidity changes!

Paul,

I can sympathize! I've been fighting the same battle here at the
University of Illinois for 13 years! Unfortunately, there seems to be
considerable animosity between the facilities management people and the
academics who run the department. Outdated HVAC equipment that won't
function properly also plays a large roll. There are HUGE systems that
can only be repaired so far before they need wholesale upgrades.

Part of the problem has to do with fresh air dampers being wide open,
thus bringing in outside air that needs to be cooled and/or heated to
acceptable temperatures. There are laws that require  outside air to be
brought into the system to maintain healthy air quality. These can
operate poorly, causing more outside are than is really needed. 

It is helpful to print out the data from the graph on the DICKSON DATA
LOGGER and send it to department managers to forward to facilities
people. I've attached a couple of examples. 

It can be extremely frustrating to have to work around these conditions
and I don't have any failsafe solutions, although it may be of help to
gain support/sympathy/outrage from the faculty who have the ear of the
directors and or chancellors.

Good luck!

John Minor
University of Illinois