<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">Hello All,</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">I'm simulating in designbuilder V3 (detailed hvac) a building in order to</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">fulfill leed requirements.</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">I am getting now following warnings:</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">** Warning ** Coil:Cooling:DX:SingleSpeed "CL-BS-P0 AHU UNITARY COOLING COIL DX</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">COOLING COIL" - Air volume flow rate per watt of rated total cooling capacity is</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">out of range at 2.283E-005 m3/s/W.</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">** ~~~ ** Environment=ICTA, at Simulation time=01/01 00:00 - 00:30</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">** ~~~ ** Expected range for</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">VolumeFlowPerRatedTotalCapacity=[2.684E-005--6.713E-005]</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">** ~~~ ** Possible causes include inconsistent air flow rates in system</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">components,</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">** ~~~ ** or variable air volume [VAV] system using incorrect coil type.</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">....and then....</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">** Warning ** Coil:Cooling:DX:SingleSpeed "CL-BS-P0 AHU UNITARY COOLING COIL DX</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">COOLING COIL" - Full load outlet air dry-bulb temperature < 2C. This indicates</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">the possibility of coil frost/freeze. Outlet temperature = -10.33 C.</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">These warnings refer to Baseline Systems, which I have defined using directly</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">the DesignBuilder HVAC template ASHRAE 90.1, System No. 6, leaving everything as</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">defined by default, including AHU airflows.</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<span style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">Any idea on how to solve this problem would be really appreciated,</span><br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)">
<br style="font-family:Georgia;font-size:13px;background-color:rgb(255,255,255)"><br clear="all"><div><br></div>-- <br><div style="text-align:right"><div style="text-align:left"><font color="#666666" face="arial, helvetica, sans-serif"><b>___________________________________________________________<br>
<br></b></font></div><div style="text-align:left"><span lang="IT"><font color="#666666" face="arial, helvetica, sans-serif"><b>Luca Volpi Stock, </b></font></span><span style="color:rgb(102,102,102);font-family:arial,helvetica,sans-serif">A</span><span style="color:rgb(102,102,102);font-family:arial,helvetica,sans-serif">rch. </span><span style="color:rgb(102,102,102);font-family:arial,helvetica,sans-serif">Dipl.-Ing.</span><span style="color:rgb(102,102,102);font-family:arial,helvetica,sans-serif"> </span><span style="color:rgb(102,102,102);font-family:arial,helvetica,sans-serif"> </span></div>
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