[Bldg-sim] Solar Water Heater & Residential Classification for Hotel

[Loren Appin]

Tom,

Thanks for responding so quickly.  Yeah, I have been using those tables for
the building envelope, which come out to be the same residential vs. non
residential in my climate zone, but, sorry, I don't think I clarified my
doubt well enough.  What I am actually more concerned about is the type of
HVAC system to use for the base case model, as a residential building asks
you to use PTAC, but VAV for non-residential.

So what do you do when it comes to the hvac systems?

Thanks!

On Feb 20, 2008 6:04 PM, Tom Momeyer <tom at momeyer.com> wrote:

>  Loren,
>
>
>
> For building envelope compliance on hotel mixed use projects, using
> prescriptive tables (Tables 5.5 in 80.1 2004), I check the required values
> using the Residential column U, R, etc values applied to the guestroom areas
> and the Nonresidential column values applied to the offices, dining, back of
> house, etc. areas.  This is per definitions for Residential and
> Nonresidential; for Residential it says "hotel/motel guest rooms".  And,
> 5.5.1 says for conditioned space, the exterior building envelope shall
> comply with either the "nonresidential" or "residential" requirements in
> Tables 5.5-1 through 5.5-8.
>
>
>
> Tom
>
>
>
> Thomas E. Momeyer, AIA, CCS, LEED AP
>
>
>
> *From:* bldg-sim-bounces at lists.onebuilding.org [mailto:
> bldg-sim-bounces at lists.onebuilding.org] *On Behalf Of *Loren Appin
> *Sent:* Wednesday, February 20, 2008 8:28 AM
> *To:* bldg-sim at lists.onebuilding.org
> *Subject:* [Bldg-sim] Solar Water Heater & Residential Classification for
> Hotel
>
>
>
> Hi Everyone,
>
> Was wondering if someone could clarify if a hotel falls under
> "residential" within the ASHRAE 90.1 guidelines.  I'm modeling a hotel
> that is G+6, and is filled with guest rooms except for the ground floor
> which includes a lobby and small cafeteria.  I find that this clarification
> becomes especially important when doing the base case model using the
> guidelines from appendix G as it makes a large difference in the type of
> system to use.  In the user manual, on page G-22 to be specific, The last
> paragraph states that "Residential spaces in buildings are used primarily
> for living and sleeping.  They include, but are not limited to, dwelling
> units, hotel/motel guest rooms, dormitories... etc." And for this reason I
> have assumed the building to be residential, but because it says
> "residential SPACES" instead of "buildings" I am starting to question it.
>
> Also, has anyone had any experience modeling solar hot water heaters in
> VisualDOE and if so, how have you gone about modeling it?
>
> Thanks for the help!
>
>
> Loren
>
> MECSD
>
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