Dear East Lab Wing User,

Physical Facilities has complete the investigation on the air handling unit and unfortunately we have bad news to report.  There was serious damage to the main fan wheel bearing and fan shaft (attached photo).  Adding to the issue Monday is a holiday for most companies will be closed and shipping carriers will not be delivering to Purdue campus leading to more delays with getting repair parts needed for the fan.  We could be looking at the middle to late next week before we have that unit operational.  We are currently investigating different options to speed up the repairs when possible.  

Being this interruption turned into a long term outage, attention to labs with high heat loads (e.g. lab 1039, lab 1043, and lab 1031) where research owners and users will need to manually monitor temperatures inside their labs and take appropriate action to protect research equipment from overheating.   Additionally there will be no humidity control and we will be at the mercy of the outside ambient conditions and to expect higher humidity levels in ALL labs in the east lab wing. 

Physical Facilities department knows this is a critical issue for research at the center and this is a high priority for them.  I will kept you posted on the progress of the repairs when new information becomes available.   

Thank you,

Mark Voorhis

Building Manager

Purdue University

Birck Nanotechnology Center

Office: (765) 494-3036

From: Bnc-facility-notice <bnc-facility-notice-bounces@ecn.purdue.edu> On Behalf Of Voorhis, Mark L.
Sent: Friday, September 4, 2020 9:19 AM
To: bnc-facility-notice@ecn.purdue.edu
Subject: [Bnc-facility-notice] NOTICE - East Wing General Lab Ambient Temperature and Humidity Control

Dear East Lab Wing User,

This morning there it was discovered there could be a motor or belt failure causing a serious vibration at the air handling unit that is transferring to the concrete floor causing vibration issue down into the lab areas. 

We need to shutdown this air handling unit that controls ambient temperature and humidity for all the following labs and galleys. 

1031	2031
1039	2037
1043	2043
1045	2066
1066	2069
1069	2077
1077	2081
1081	2087
1083	2087A
1089	2087B

We are not sure how long the down time will be until we complete the investigation of the unit and review parts needed.   For safety reason we plan to maintain normal BIO and chemical exhaust levels.  When you enter these lab spaces you may experience higher static pressure levels effecting how easy the lab doors will open. 

We plan to shut down the unit at 10AM.  Sorry for the shut notice but we don’t want to cause more possible damage to the Air handling unit.

Mark Voorhis

Building Manager

Purdue University

Birck Nanotechnology Center

Office: (765) 494-3036