<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Can you please provide a more detailed description of the proposed guest room fan coils? Are they water source heat pumps? Are only the DOAS served by the chiller?<br><br><div dir="ltr">Sheila<div>Sent from my iPhone</div></div><div dir="ltr"><br>On Feb 2, 2021, at 4:41 PM, Saif A via Bldg-sim <bldg-sim@lists.onebuilding.org> wrote:<br><br></div><div dir="ltr"><div dir="ltr"><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">Hello,</p><p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">I’m working on a hotel that has an air cooled chiller, the
guest rooms are conditioned by fan coil units and the outdoor air is provided
via a DOAS that uses natural gas for heating. According to the energy cost
budget method each system should be mapped one-to-one on figure 11.5.2. The
fan coils will be mapped as system 8 (heat pump), but I am not sure how to map
the dedicated outside air system, I thought to model it identical to the
proposed building, but that means a chiller needs to be added to the baseline
model which does not make sense to me. I thought of using only system 8 for conditioning
and providing the outside air to the guest rooms, but the energy cost budget requires
to model the secondary heating source identical to the proposed model so I am
not sure how to separate the heating source for outside air from the space
heating. Any thoughts on how to model the baseline?</p>
<p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif"> </p>
<p class="MsoNormal" style="margin:0in;font-size:11pt;font-family:Calibri,sans-serif">Thank you,</p></div>
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