[Bldg-sim] ASHRAE 62.1 unoccupied space minimum outdoor air supply

[Brian Fountain]

This is not my understanding.   ASHRAE 62 defines ventilation is for 
acceptable air quality.  When the space is unoccupied, there is no 
requirement for ventilation. 


Maudud Quazi wrote:
> I believe there is a minimum outdoor air requirement/sq.ft.  When 
> there is no occupancy, we can eliminate the CFM/person and keep only 
> CFM/sq.ft.  Can any one else give some more advice on this please? 
>  
>  
>
>
>  
> On Thu, Nov 12, 2009 at 7:09 AM, Guin, Michael 
> <Michael.Guin at wspgroup.com <mailto:Michael.Guin at wspgroup.com>> wrote:
>
>
>     Dear all,
>
>     ASHARE 62.1 2007 deifned zone as an occupied space. Table 6-1
>     provides the calculation for different spaces based on occupancy
>     and floor area of the occupied space.
>
>     If we consider an unoccupied office space at night (i.e. not
>     strictly a "zone  anymore" ); is there any requirement to provide
>     minimum fresh air wihin the office space.
>
>
>     Thanks in advance for your help
>     Michael 
>
>
>
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