[Equest-users] HVAC unmet hours - high cfm/ton cooling

R B slv3sat at gmail.com
Tue Oct 11 08:27:33 PDT 2011


For reducing heating unmet hours I have found that reducing the min flow
helps, or sometimes increasing the reheat supply temp if that is an option.
-Rohini

On Tue, Oct 11, 2011 at 10:03 AM, nic <ffonics at gmail.com> wrote:

> Hello,
>
> I am having some issues on a EPAct project with HVAC Equipment.  The
> Quality Check Details states that My CFM/ton of Cooling is high at around
> 750cfm/ton.  I have entered the exact design flows/ sizes of the heat pumps
> as indicated in the mechanical schedules, but something seems to be short
> circuiting the heating/ cooling relationship.  Should I discard the actual
> supply flow rate?  I guess the real question stems from the fact that when I
> increase the sizing of the system above 1.0 to ~1.25, the heating actually
> gets worse.  Same thing with specifying airflow zone by zone.  At this
> point, it seems that there is something obvious I am overlooking.
>
> thanks,
> nic
>
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