[Bldg-sim] economiser for climate zone 1

[Chris Yates]

Hi Joe,

1a I understand. But we are looking at a 1b location (Hot/ Dry). Surely the
best approach would be economiser with DB control?

Curiously, in my copy (90.1 2007) economisers are not required in *1b
*(table G3.1.2.6A).
However, the following table (G3.1.2.6B) denotes that economiser high limit
shutoff should be 75degF for *1b*.

Am I missing something fundamental about the physics of non-extant
economisers?

Chris

On Thu, Jun 13, 2013 at 11:54 AM, Joe Huang <
yjhuang at whiteboxtechnologies.com> wrote:

> **
> I'm more agnostic about this. ASHRAE Climate Zone 1 (Miami) is very hot as
> well as humid.  Hopefully, there was some analysis done showing that
> economizers are not cost-effective under such climate regimes.
>
> Joe
>
> Joe Huang
> White Box Technologies, Inc.
> 346 Rheem Blvd., Suite 108D
> Moraga CA 94556yjhuang at whiteboxtechnologies.comwww.whiteboxtechnologies.comhttp://weather.whiteboxtechnologies.com for simulation-ready weather data
> (o) (925)388-0265
> (c) (510)928-2683
> "building energy simulations at your fingertips"
>
>
> On 6/13/2013 3:36 AM, Chris Yates wrote:
>
> Is it just me, or is does it seem terrifically wasteful that a climate 1
> building doesn't require an economiser? Or am I missing something?
>
>  KR / Chris
>
>
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