<html><body bgcolor="#FFFFFF"><div>Matt,</div><div><br></div><div>Am not sure what kind of system you are sizing, CAV reheat or VAV, however HAP will size the reheat coil to provide reheat of the supply air at your min setting (2 ACH) which you have set to 55F plus any additional heat needed to warm the zone to 57F (60-3), which is heating Tstat - throttling range. The "zone sizing summary" report will indicate the reheat coil load. Given that you have such low Tstat setpoint there may be very little zone heat required. Hope this helps. </div><div><br></div><div>BTW, you should just call Carrier software support with questions as this is free provided you have a license. 800-253-1794. </div><div><br></div><div>-Craig<br><br>Sent from my iPhone</div><div><br>On Mar 17, 2010, at 10:09 PM, "Kimball, Matthew" <<a href="mailto:Matthew.Kimball@jacobs.com">Matthew.Kimball@jacobs.com</a>> wrote:<br><br></div><div></div><blockquote type="cite"><div>
<div>I am not looking for HAP to size, I just want to know the btu output from the coils. It gave me preheat coil btu's and cooling coil btu's, but not reheat btu's.</div>
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<div><font size="2">-----Original Message----- <br><b>From:</b> C. J. Gann [mailto:cjg04austin@swbell.net] <br><b>Sent:</b> Wed 3/17/2010 6:26 PM <br><b>To:</b> Kimball, Matthew <br><b>Cc:</b> <<a href="mailto:hap-users@lists.onebuilding.org">hap-users@lists.onebuilding.org</a>> <br><b>Subject:</b> Re: [Hap-users] Constant Air Flow<br><br></font></div>
<div>HAP will not size your reheat coil because you specified "user-defined" sizing. Use computer sizing and it will size it. </div>
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<div>Regards,</div>
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<div>Craig J. Gann, P.E.; LEED AP</div>
<div><a href="http://www.energysimulators.com/"><a href="http://www.EnergySimulators.com">www.EnergySimulators.com</a></a><br><br>Sent from my iPhone</div>
<div><br>On Mar 17, 2010, at 4:59 PM, "Kimball, Matthew" <<a href="mailto:Matthew.Kimball@jacobs.com"><a href="mailto:Matthew.Kimball@jacobs.com">Matthew.Kimball@jacobs.com</a></a>> wrote:<br><br></div>
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<div dir="ltr" align="left"><span class="935034921-17032010"><font color="#0000ff" size="2" face="Arial">Anyone care to analyze what I am doing below and tell me why I'm not getting a terminal heating coil load when I run a simulation on the system? Thanks, Matt.</font></span></div>
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<font size="2" face="Tahoma"><b>From:</b> Brendan Arnold [mailto:BrendanA@MKE-Inc.com] <br><b>Sent:</b> Tuesday, March 16, 2010 12:58 PM<br><b>To:</b> Kimball, Matthew; <a href="mailto:hap-users@lists.onebuilding.org"></a><a href="mailto:hap-users@lists.onebuilding.org"><a href="mailto:hap-users@lists.onebuilding.org">hap-users@lists.onebuilding.org</a></a><br><b>Subject:</b> RE: [Hap-users] Constant Air Flow<br></font><br></div>
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<div dir="ltr" align="left"><span class="379144116-16032010"><font color="#0000ff" size="2" face="Arial">You can specify a constant volume system under your "general" tap. Make sure if you are using chilled water select "Chilled Water Air Handling Units" under Equipment Type. Then select CAV single zone or terminal reheat (dependant on your situation) in the Air System Type. Under the "sizing data" tap you can select "user define", then specify your supply air and ventilation CFM's. </font></span></div>
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<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="379144116-16032010">In order to determine cost for heating and cooling water you will need to construct a building to be simulated. Thus you will need to create a chiller and boiler plant and specify all pump requirements. Then implement these into your building. </span></font></div>
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<div><span class="379144116-16032010"><font color="#0000ff" size="2" face="Arial">Brendan</font></span></div>
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<font size="2" face="Tahoma"><b>From:</b> <a href="mailto:hap-users-bounces@lists.onebuilding.org"><a href="mailto:hap-users-bounces@lists.onebuilding.org">hap-users-bounces@lists.onebuilding.org</a></a> [mailto:hap-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Kimball, Matthew<br><b>Sent:</b> Tuesday, March 16, 2010 9:12 AM<br><b>To:</b> <a href="mailto:hap-users@lists.onebuilding.org"></a><a href="mailto:hap-users@lists.onebuilding.org"><a href="mailto:hap-users@lists.onebuilding.org">hap-users@lists.onebuilding.org</a></a><br><b>Subject:</b> [Hap-users] Constant Air Flow<br></font><br></div>
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<div><font size="2" face="Arial"><span class="527570416-16032010">Is there a way to force HAP to supply a constant air flow through a "system" (this includes specifying return air and outside air requirements) and calculate the cost of providing the cooling and heating water to the "system" and "zone" reheats? Any explanations would be helpful.</span></font></div>
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<div><font size="2" face="Arial"><span class="527570416-16032010">Thanks,</span></font></div>
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<div align="left"><font size="2" face="Arial"><strong><em>Matthew Kimball</em></strong></font></div>
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