[Build] HVAC FAQ

[Ben Kochie]

I answered the why with the FAQ, but I can say it again.

Air from the windows is not filtered.

The wind isn't always moving the way we want, or as much as we want for a 
given number of people in the space.

The HVAC part of the build is to provide air quality.  This requires more 
than just venting of some areas.

-ben

  "UNIX is user-friendly, it's just picky about its friends."

On Thu, 3 Sep 2009, Shannon Lee wrote:

> My question wasn't *what* the plan was, it was *why* that was the plan.  We seem to get plenty
> of air from the windows, and the whole reason for having an HVAC component in the build was
> negative venting for the shop, electronics space, etc.
> --S
> 
> On Thu, Sep 3, 2009 at 1:07 PM, Ben Kochie <ben at nerp.net> wrote:
>       To respond to questions I just stuck it all in one email.
>
>       * The HVAC system is to provide fresh air when large numbers of people are in the
>       space.
>       * The fan system has filters to remove some of the "Mission" from the incoming air.
>       * A large fan doesn't do either of these things
>       * "For the 2 days a year when we need it" isn't solved by any fan-only solution, we
>       would need active cooling for those days.
>       * Active cooling/heating is as easy add-on option with the air mover, but I doubt
>       we'll add cooling/heating.
>       * Part of the HVAC plan is to also provide negative venting as well as the fresh-air
>       feed.  The ammount of negative venting (cubic-ft/min) we need is small compared to
>       the fresh-air needs.
>
>       Yes, I understand that we're over budget.  This is why we're getting most of the
>       HVAC stuff for free.  The HVAC guy and I are still scrounging around for more free
>       stuff to minimize anything we might need to buy.
>
>       Right now I'm working with a $0 budget to install this unit.
>
>       -ben
>
>        "UNIX is user-friendly, it's just picky about its friends."
>
>       On Thu, 3 Sep 2009, Shannon Lee wrote:
>
>             Maybe I'm misunderstanding something, but I thought that out primary
>             goal was a negative
>             ventilation system -- ie, removing things (fumes &c) from the space,
>             rather than bringing more
>             air in?
>             --S
>
>             On Thu, Sep 3, 2009 at 11:08 AM, Ben Kochie <ben at nerp.net> wrote:
>                  I also got word from the HVAC guy that he was able to find a
>             smaller more
>                  appropriate fan unit for our space.  He might be able to deliver it
>             this
>                  weekend.
>
>                  -ben
>
>                   "UNIX is user-friendly, it's just picky about its friends."
>
>             On Thu, 3 Sep 2009, Zedd Epstein wrote:
>
>             >
>             > Drywall:
>             > The shop space is done. We have 11 more pieces to put up, then all of
>             the drywall is up.
>             If I
>             > can get some people here in the next few hours, we should be mudding
>             by this afternoon,
>             and be
>             > done by Friday night.
>             >
>             > Electrical:
>             > Both of the runs to the panels are pulled.
>             >
>             > We're going to need another dump run done in the near future.
>             >
>             > Thanks to everyone that's been coming out to help.
>             >
>             > Zedd
>             > 415-318-0296
>             >
>             >
>             _______________________________________________
>             Build mailing list
>             Build at lists.noisebridge.net
>             https://www.noisebridge.net/mailman/listinfo/build
> 
> 
> 
>
>             --
>             Shannon Lee
>             (503) 539-3700
>
>             "Any sufficiently analyzed magic is indistinguishable from science."
> 
> 
> 
> 
> --
> Shannon Lee
> (503) 539-3700
> 
> "Any sufficiently analyzed magic is indistinguishable from science."
> 
>