>>Hello: After new HVAC equipment for a gallery has been installed, what is the shortest AND longest period of time you have tested the new equipment before bringing art and artifacts into the galleries?
Many thanks in advance for your feedback. Noel Valentin Permanent Collection Manager El Museo del Barrio 1230 Fifth Avenue New York, NY. 10029 212 660 7120 voice 347 749 4890 mobile 212 831 7927 fax [email protected] www.elmuseo.org<< Generally with Minnesota Historical Society (MNHS) buildings, we already have collections inside the spaces when new HVAC systems are installed or existing systems are upgraded. We've never really had a chance to monitor a space for any set period of time before installing collections. If you can, it's important to wait until the system has gone through complete testing and balancing. Commissioning the system is important, but it's often not funded so it doesn't happen. It's critical to work with your facilities engineers and get the exact temperature and RH set-points that are actually programmed into the HVAC system so you can correlate your monitoring data and give the engineers correct feedback. Is the system a BAS? If so, you might be able to get access via the Internet so you can see what the duct sensors are measuring and be able to better diagnose problems. I would suggest monitoring with the Image Permanence Institute's (IPI) PEM2 monitors and analyzing your data via eClimateNotebook (eCNB). That way you can access outdoor data for comparison and provide dew point statistics to the engineers which is essential for monitoring system performance. I'd say the minimum pre-installation time would be a month, and the ideal a year so you can see the system responses to all seasonal changes. Paul Storch Collections and Exhibits Liaison-Historic Properties Minnesota Historical Society -- *Paul S. Storch* *Collections and Exhibits Liaison - Historic Properties* Project Specialist III Facilities and Risk Management Division Minnesota Historical Society 345 Kellogg Blvd. West <https://maps.google.com/?q=345+Kellogg+Blvd.+WestSaint+Paul,+MN+55102&entry=gmail&source=g> Saint Paul, MN 55102 <https://maps.google.com/?q=345+Kellogg+Blvd.+WestSaint+Paul,+MN+55102&entry=gmail&source=g> -1906 (651) 259-3257 [email protected] Visit Historic Sites! www.mnhs.org ****** Unsubscribe by sending a message to [email protected] Searchable archives: http://cool.conservation-us.org/byform/mailing-lists/cdl/
