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<p class="MsoNormal"><span style="color:#1F497D">FCU = Fan Coil Unit. It would be used to temper air, someplace before your cleanroom filters. An FCU is not the appropriate equipment to supply air to a cleanroom as it typically would not have enough fan power
to push are through an appropriate filter. You may be able to upgrade the FCU filters to a MERV 13 [and I would] because any load you take off your HEPA final filters will save you money] but they cannot BE your final filter. An FCU would be used to address
a identified heat load as an example. - TAT <o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> labnetwork-bounces@mtl.mit.edu [mailto:labnetwork-bounces@mtl.mit.edu]
<b>On Behalf Of </b>Morrison, Richard H., Jr.<br>
<b>Sent:</b> Thursday, April 09, 2015 1:02 PM<br>
<b>To:</b> Shivakumar Bhaskaran; labnetwork@mtl.mit.edu<br>
<b>Subject:</b> Re: [labnetwork] Filter type for the FCU<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="color:#1F497D">Here is a good cross-reference guide.
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">We have MERV-8 as pre-filters in our makeup air unit they have plastic frames they are 2” thick. The final filter in the MAU is 4” thick Merv-15 Precision Cell ll 95% filters, again plastic frame. This air is
then feed to the chases and passed into Fan Filter HEPA ceiling units. Hope this helps<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">I am not familiar with a FCU, what does that stand for.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Rick<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Draper Laboratory<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Principal Member of the Technical Staff<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Group Leader Microfabrication Operations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">555 Technology Square<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Cambridge Ma, 02139-3563<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="http://www.draper.com">www.draper.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><a href="mailto:rmorrison@draper.com">rmorrison@draper.com</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">W 617-258-3420<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">C 508-930-3461<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">
<a href="mailto:labnetwork-bounces@mtl.mit.edu">labnetwork-bounces@mtl.mit.edu</a> [<a href="mailto:labnetwork-bounces@mtl.mit.edu">mailto:labnetwork-bounces@mtl.mit.edu</a>]
<b>On Behalf Of </b>Shivakumar Bhaskaran<br>
<b>Sent:</b> Thursday, April 09, 2015 11:34 AM<br>
<b>To:</b> <a href="mailto:labnetwork@mtl.mit.edu">labnetwork@mtl.mit.edu</a><br>
<b>Subject:</b> [labnetwork] Filter type for the FCU<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My building Facility Engineer was trying to change the filters in the FCU. He found that the FCU was installed with MERV8 type filter. I looked into the specs and it mentioned its used in commercial building.
<o:p></o:p></p>
<p class="MsoNormal">For cleanroom the filter type is MERV20. Before we change , I want to consult with you guys on what type of filters do you use in your FCU. Our FCU is located in the Chase area of the Cleanroom ceiling.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The filter that was installed were Pre-pleat 40 LPD. The filter frame is cardboard, I am worried that this cardboard framed filter shouldn’t be used in the FCU instead it should be metal frame or plastic.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-Shiva<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Shivakumar Bhaskaran, Ph.D.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Searle CleanRoom Manager<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">The University of Chicago<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">5735 S.Ellis, Room 032<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Chicago-60637<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif"">Ph:773-795-2297<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Times New Roman","serif""><a href="https://searle-cleanroom.uchicago.edu/">https://searle-cleanroom.uchicago.edu/</a><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Times New Roman","serif"">Notice: This email and any attachments may contain proprietary (Draper non-public) and/or export-controlled information of Draper Laboratory. If you are not the intended
recipient of this email, please immediately notify the sender by replying to this email and immediately destroy all copies of this email.
<o:p></o:p></span></p>
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