Default Fan EIR Not Allowed to Edit

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Hi Users,

On the SV-A report, the supply fan diversity factor for one HVAC system is 0, which leads to unreasonalbly low fan-power. In order to find out where the problem is, I edited the default Fan EIR into ForCurve w Dischage Dampers FPLR (before editing, the space is n/a in grey), and for "fan control" I chose Fan EIR FPLR accordingly (as shown in attachment 1). However, after simulation, I found the supply fan diversity factor is still 0. I reopened the model and found the edited Fan EIR jumped back to "n/a" in grey (as shown in attachment 2), refusing to be changed. I even tried to edit the .inp file directly, but the problem remains.

I have been wasting days on this issue, which is really killing me. It is obvious that a bad-looking SV-A report (attachment 3) doesn't work. Any help will be greatly appreciated.

Best Regards,

Rick, LEED AP

YinRic's picture
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Joined: 2011-09-30
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Try simply making it constant volume instead of fan EIR then try playing with your kw/cfm or static pressure to get the results your looking for

Charles Land's picture
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It sounds to me like eQUEST is trying to prevent you from doing something
you shouldn't do. If you want real help, zip up the .pd2 and .inp files and
send them to us.

Carol

2010/4/21 Charles Land

cmg750's picture
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