<div dir="ltr"><div><div class="im" style="font-family:arial,sans-serif;font-size:13px">Thanks James,but what do you mean by LAT, in addition to the fact that i<br>have modeled the chilled water supply temperature reset as per the<br>
requirement the rest based on outdoor dry bulb temp using :44 F at 80 f and<br>above,  54 f at 60 f and below, so how can i compromise this since the<br>actual thermostat cooling set point is 71.6, and i don't have AHU in<br>
baseline,  its system 8.<br>Thanks alot<br clear="all" style="color:rgb(34,34,34);font-family:arial;font-size:small"><div style="color:rgb(34,34,34);font-family:arial;font-size:small"><br></div><span style="color:rgb(34,34,34);font-family:arial;font-size:small">-- </span><br style="color:rgb(34,34,34);font-family:arial;font-size:small">
<div dir="ltr" style="color:rgb(34,34,34);font-family:arial;font-size:small"><p><font color="#3333ff">Hala Jaber.</font></p><p><font color="#3333ff">Sustainable Design Engineer.; LEED AP BD +C .</font></p><p><font color="#3333ff">+962-79-7570197</font></p>
<p><font color="#3333ff">email: </font><a href="mailto:halajaber82@gmail.com" target="_blank"><font color="#3333ff">halajaber82@gmail.com</font></a></p></div></div><div class="im" style="font-family:arial,sans-serif;font-size:13px">
<br></div><div class="im" style="font-family:arial,sans-serif;font-size:13px">On Jan 22, 2014 8:24 PM, "James Hansen" <<a href="mailto:JHANSEN@ghtltd.com">JHANSEN@ghtltd.com</a>> wrote:<br><br>> If your CHW supply temp is 44F, and your LAT setpoint for the AHU is 51.6,<br>
> then you are 6F higher.  Check your reset schedules - if you allow reset<br>> for CHW without also allowing reset for the AHU (both per ASHRAE), you may<br>> have a condition where the CHW supply is within 6 degrees of your LAT.<br>
><br>><br>><br>> GHT Limited<br>><br></div><span style="font-family:arial,sans-serif;font-size:13px">> *James Hansen, PE, LEED AP, BEMP*</span><br style="font-family:arial,sans-serif;font-size:13px"><span style="font-family:arial,sans-serif;font-size:13px">></span><br style="font-family:arial,sans-serif;font-size:13px">
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</span></div><span style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><div><span style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><br></span></div><div>> Hey eQuest users,<br>> I have a new challanging  requirement in the appendix G section G3.1.2.8,<br>
> its required the supply air-to room air cooling temperature difference is<br>> 20 degrees for each HVAC system. Now my question is how can i achieve this<br>> if my baseline is system 8 and the chilled water leaving temperature is<br>
> specified 44 F with return delta t=12,at the same time that in my design<br>> the indoor thermostat temp=71.6 F , and the supply cooling temp should be<br>> 51.6F,  here when i set this value i got an error in eQuest stating that"<br>
> the cooling coil leaving temperatures must be at least 6 F higher than<br>> entering water temp" and when i set the cooling supply air temp<span style="color:rgb(80,0,80);font-family:arial,sans-serif;font-size:13px"><br>
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