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<DIV><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I’m trying to specify separate, constant CFMs for heating and cooling mode operation (Ex: 5,000 Heating & 7,500 Cooling). <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The system I created is Variable Air Volume which serves multiple thermal zones.<o:p></o:p></p><p class=MsoNormal>The Fan Flow Parameter MIN-FLOW-RATIO is set to 1.00. I read this as the minimum supply CFM during cooling mode.<o:p></o:p></p><p class=MsoNormal>The Fan Flow Parameter HMAX-FLOW-RATIO = 5000/7000. I read this to be the maximum supply CFM during heating mode.<o:p></o:p></p><p class=MsoNormal>The Fan Flow Parameter HMIN-FLOW-RATIO = 5000/7000 -0.01. I read this to be the minimum supply CFM during heating mode.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>But from the hourly report the CFM supplied, defined by SUPPLY-FLOW = 7,500, is the cooling quantity during heating mode when I would have expected it to be 5,000. As far as I can tell no flows are specified at the zone level that would override it. Any thoughts on things to look at would be greatly appreciated.<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Thanks, <span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Todd<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></DIV></BODY></HTML>