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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Thought I’d share a tip for addressing unmet heating hours in VAV systems using eQUEST 3.64.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>eQUEST 3.64 adds the HMAX-FLOW-RATIO keyword in System -> Fans -> Flow Parameters. The default value is the greater of the fan MIN-FLOW-RATIO and 0.5, but this value is determined by the program and you don’t see it when you look at the Flow Parameters tab. Entering a value of 1.0 corrected an unmet heating hours problem for me that appeared when I opened a model in 3.64 that I originally created in 3.63. This works for both VAVS and PVAVS system types.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Regards,<o:p></o:p></p><p class=MsoNormal>Bill<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img width=486 height=116 id="Picture_x0020_1" src="cid:image001.jpg@01CC7459.C3C43970" alt="Senior Energy Engineer"><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>