<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>Hi,</DIV>
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<DIV>I model a PSZ system with exhaust air heat recovery. I set the static pressures of supply/exhaust fans as zero in ERV tab. Therefore, the fan energy is the same with or without ERV. However, there is an increasing cooling load in the cooling model. I changed the hourly report and didn't find the reason. Any suggestions are highly appreciated.</DIV>
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<DIV>Thanks</DIV>
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<DIV>Shaojie </DIV></td></tr></table><br>