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<p class="MsoNormal">The University Energy Saving Project is installing a power feed to a large new heat recovery unit and requires a 2 hour shutdown of Main Distribution Switch MDS1.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The work will be done from 5:00 am - 7:00 am on Monday December 9<sup>th</sup>.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This date and time was selected after consultation with experimentalist faculty, the Chair’s office, FOD, and the University Energy Partner.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Shutting down MDS1 will cause power loss to many systems and will create the following known impacts for the 2 hour work span:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">1.) All air handlers and exhaust fans will shut off and offices, labs, and clean rooms will lose primary supply air flow and all exhaust including fume hoods.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">2.) All computing assets in farm room 4175 will shut down. <o:p>
</o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">3.) All, or at least most, lab overhead lighting will go out.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">4.) Lab air compressor and dryer will shut off<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">5.) Misc Building equipment (scissor lift, glycol circulation pumps, domestic hot water circulation pumps, temperature control air compressor) will be off.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">6.) Some circuits will shift to the emergency generator when a loss of power is detected and should restart within a few seconds after the automatic transfer switch activates.<o:p></o:p></p>
<p class="MsoNormal"> (Items on generator include Liebert in 4179, emergency lighting, UPS in 4179, all elevators, Process Cooling Water pumps P9/P10, Campus Chilled Water Pumps P7/8, Heating Hot Water Pumps P5/6, and a few other minor items)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">7.) Networks and computing assets in room 4179 are expected to run from UPS/Generator, but may experience bridging shutdowns from speed of UPS/generator transfers and may not all fully reboot without human interventions.<o:p></o:p></p>
<p class="MsoNormal"> (Networks are predicted to be down for approximately 5 minutes and not for the full duration of the work outage)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Power panels that serve individual labs are fed from Main Distribution Switch 2 (MDS2) and are not part of this outage. This means power to equipment inside of labs will remain on.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">It should be noted however, that the physical size of the MDS1 switch (see attached PDF), the large amperages being manipulated, and the lack of known side effects for such a maneuver present a risk factor.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Therefore, labs are encouraged to adopt a defensive posture by shutting down sensitive equipment to the extent it is practical and can be done without major consequences.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Other significant outages for the University Energy Savings Project are yet to come in early 2020 and additional messaging will follow for these events.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">This is notice 2 of 3 for this power outage event.<o:p></o:p></p>
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