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<p class="MsoNormal"><span style="color:#1F497D">Anil,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Adding a Dummy zone you can try by putting it as Unit Ventilator and make the heating source as “not installed”. Assign the fan schedule and input Design supply fan …..kw/cfm in fan power parameters.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.5pt;color:#C00000">Soham Babu</span></b><span lang="EN-US" style="font-size:10.5pt;color:#C00000"> | </span><b><span lang="EN-US" style="font-size:10.5pt;color:#7F7F7F"> Project Lead</span></b><span lang="EN-US" style="font-size:13.5pt;font-family:"Times New Roman","serif";color:black"><o:p></o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Anil Jangid<br>
<b>Sent:</b> 23 April 2015 06:17<br>
<b>To:</b> equest-users@lists.onebuilding.org; bldg-sim@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Fresh Air Unit supply fan power<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;color:black">Hi, Everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;color:black">I’m modeling a VRF system with 30% extra fresh air as per ASHRAE standards.</span><span lang="EN-US" style="font-size:12.0pt"> The building has a Fresh Air Unit (without cooling coil
and Heat recovery wheels) which is supplying calculated amount of fresh air to VRF indoor units.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">As the Fresh Air Unit does not have cooling coil and heat recovery wheels, entire cooling load of fresh air will be taken care by VRF indoor units.
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">I am doubtful about the Fresh Air Unit supply fan power. How should I model the fan power of Fresh Air Unit supply fan? Should I break the fan power and add it with the VRF indoor unit fan power
as per the fresh air fraction provided in that VRF unit?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt">Thanks in advance!<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;color:black">Regards,<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;color:black">Anil Jangid<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span lang="EN-US" style="font-size:12.0pt;color:black">Project Engineer
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="color:black"><o:p> </o:p></span></p>
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