I've seen multiple posts regarding 2004 Appendix G Fan Power and one
post from Ming Zeng suggested the following:
"Baseline model fan usually gives 0.00078KW/cfm. For proposed fans,
typically it is 0.00016-0.00018 KW/cfm/in static*"*

I have two problems related to this because my Baseline KW/cfm is closer
to 0.001 KW/cfm for a bunch of unitary Type-3 systems, which is
indefinitely way too high.

FIRST
Many people have referred to the calculated fan power as an allowance,
which to me, would appear to be a threshold not to exceed based on the
20deg-F delta for Appendix G Fan Sizing. I figure this is not the case
because others refer to the fan power as something that is simulated in
the model as a KW/cfm.
I've also seen posts where numbers are expressed as KW/kcfm, which would
indicate fan power KW per thousand cfm; which again is not an applicable
figure for simulation using eQuest.

SECOND
I'm struggling with these items because a recent GBCI reviewer has asked
me to re-calculate my fan power because my BHPs are a bit higher than
they should be. When I "re-calculate" these values I do not come up with
the numbers they do (BHP ASHRAE - attached).

I'm trying to reconcile my response and eQuest inputs before we
re-submit, but I'm not sure what to do.

Much thanks.

--
Matthew Higgins, LEED AP + ASHRAE-HBDP