THANKS SO MUCH. WILL TRY TO CONTACT THERMOSTAT MFG.
TO ALL:
BE SAFE..,BE WELL,,,,YOU AND YOUR FAMILIES AND STAFF AND LOVED ONES,
ichael I. Schaffer, Ph.D., F.A.B.F.T., NRCC-TC
VP Laboratory Operations
Psychemedics Corporation
5832 Uplander Way
Culver City, CA 90230
310-216-7776 (phone)
310-216-6662 (Fax)
(800) 522-7424 (toll free) Extension 140
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From: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**PRINCETON.EDU>
On Behalf Of Richard Palluzi
Sent: Saturday, March 28, 2020 12:29 PM
To: DCHAS-L**At_Symbol_Here**PRINCETON.EDU
Subject: Re: [DCHAS-L] Article
This Message Originated Outside the Company
Please feel free to give me a call. A lot depends on what type systems they are surviving. (So it you have three separate systems (a usually bad design) you would usually use 3 thermostats unless someone was smart enough to realize that
they need to do it with just one which requires some design work.)
I don't know of any standard they tells you where to place them, just a lot of guidelines. And I'd ask if you have large temperature differentials in the lab. Most times you won't due to the high turnover. And if you don't who really cares
where they placed them however strange it seems.
I have a question.
We recently remodeled our lab.
Had a ton of HVAC problems during and after construction.
Getting through them but very painful and expensive.
One of the issues was in the 4 lab areas, they installed up to three thermostats on the same wall within inches of each other!!!
We fought with the mechanical electrical engineers.
I dont know where to look to establish proper placement and force them to move them as the rooms are large and full of equipment.
Is there a standard practice?
Michael I. Schaffer, Ph.D., F.A.B.F.T., NRCC-TC
VP Laboratory Operations
Psychemedics Corporation
{5832 Uplander Way}
{Culver City, CA 90230}
310-216-7776 (phone)
310-216-6662 (Fax)
(800) 522-7424 (toll free) Extension 140
*** CONFIDENTIALITY NOTICE ***
THIS ELECTRONIC MAIL TRANSMISSION AND THE DOCUMENTS ACCOMPANYING IT CONTAIN INFORMATION BEING SENT BY PSYCHEMEDICS CORPORATION AND MAY CONTAIN INFORMATION THAT IS PRIVILEGED, CONFIDENTIAL AND/OR EXEMPT FROM DISCLOSURE. The information
is intended only for the use of the person(s) named above. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or the taking of any action in reliance on the contents of this information is strictly prohibited.
If you have received this transmission in error, please immediately notify us by telephone at (800) 522-7424 and delete/destroy all copies. Your receipt of this message is not intended to waive confidentiality or any privilege.
The above name and title are not intended to constitute any form of signature.
?
This Message Originated Outside the Company
Richard, Brilliant and very clearly written. I would only argue with the very first line which is:
"Laboratory ventilation is very different from commercial and industrial systems.
While I agree that lab ventilation is very different from commercial, heating and air-conditioning ventilation, I do not agree that it is different from industrial
ventilation. Lab ventilation is industrial ventilation. I have a problem with the heating and air-conditioning standards being used when there is a better code developed by the American Conference of Governmental Industrial Hygienists (ACGIH) which should
be used instead.
Every problem you describe is exactly the same problem in industrial ventilation design. I can't speak for large industrial systems for refineries and major manufacturing,
but I know they are identical for: wood shops; foundries; welding and metal working shops; sculpture, ceramic, and fine art studios; and theatrical scene, prop, and costume shops. Now we are seeing the same problems in the new fab labs which are full of 3D
printers, CNC routers, laser cutters, water jet cutters, and other new technology.
And I love the picture which could be titled "how not to design a canopy hood."
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