[Equest-users] outside air flow during unoccupied/setback hours

[Ramana Koti]

That worked, thanks. It took me while to figure out the schedule type was
Frac/Design but the results showed that my model was using OA during
unoccupied hours.

Ramana.

On Wed, Apr 25, 2012 at 12:12 PM, R B <slv3sat at gmail.com> wrote:

> I should have written min OA sch (at the OA tab, system level) instead of
> the min sch at the zone level. Thanks to Ramana for pointing this out.
> -Rohini
>
> On Tue, Apr 24, 2012 at 11:54 AM, R B <slv3sat at gmail.com> wrote:
>
>> I normally have a min sch specified at the zone level - 0 for unoccupied
>> hours and -999 for other hours that takes care of this comment.
>> There is an hourly report for fan coming on during night cycle flag (or
>> something similar). If you do not have the fan coming on or do not have the
>> night cycle control, you should be ok. You can also look at the hourly
>> report for OA ratio and whether fan is on/off during the unoccupied time.
>> -Rohini
>>
>>
>>
>> On Tue, Apr 24, 2012 at 11:23 AM, Ramana Koti <ramana.koti at gmail.com>wrote:
>>
>>> Dear All,
>>>
>>> One of the LEED review comments on a university building project I'm
>>> working on suggests to verify that all systems in baseline and proposed
>>> models contain zero outside air flow when fans are cycled on to meet
>>> setback temperatures during unoccupied hours.
>>>
>>> What is the best way to go about verifying this? In the 'Hourly Report
>>> Block' options under a system, I find 'Hourly summed zone OA CFM for DCV
>>> calculation (cfm)' and 'Hourly max zone OA/total flow for DCV calculation
>>> (cfm/cf/). Is one or both of these options under an hourly report, the way
>>> to go or is there a better way of doing it?
>>>
>>> Thanks,
>>> Ramana.
>>>
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>>
>
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