[Equest-users] SS-R Report - Part Load Hours

[Karen Walkerman]

Report SS-R gives the number of hours the fans are in each part load range.
Generally, with heat pumps, the minimum fan ratio is 1, which means that the
heat pump fans cycle on (100%), then off (0%).  So the report is correct.
If you have variable speed fans for this system, you need to change your
input parameters to allow the fans to cycle at less than 100%.

--
Karen

On Tue, Jul 8, 2008 at 11:00 AM, Alison Staudinger <astaudinger at jdrm.com>
wrote:

>  I'm stumped...
>
>
>
> I let eQuest select the size of my heat pumps, but when I look at the SS-R
> report to see my unmet hours and part load performance every heat pump is
> operating at maximum capacity.  Not a single unit has any part load
> performance.  I would think this could happen if I selected the size of the
> units, but if the program is sizing it, wouldn't it select a unit that is
> large enough to meet capacity which would have to result in some part load
> performance?  There are some units that have many unmet hours (typically
> heating) and others that have no unmet hours.  Both cases have no part load
> hours.  Any input would be appreciated.
>
>
>
> Thanks!
>
>
>
> *Alison Staudinger P.E., LEED AP*
>
> JDRM Engineering
>
> 5604 N. Main St.
>
> Sylvania, OH  43560
>
> (419) 824-2400
>
>
>
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