Re: [EnergyPlus_Support] Roof Top Units (RTUs)

["Michael J. Witte" <mjwitte@xxxxxxxx>]

Ian:

Examples which should help you for a rooftop unit are:

5ZoneAutoDXVAV, PSZ, PSZDrawThru, SmOffPSZ.  

You will need to curve-fit your own performance curves from the 
manufacturer's catalog data.

Makeup air units would essentially be the same equipment in 
EnergyPlus, just different performance curves.

How could you have found these on your own?  That's difficult.  There 
is a list of example files in the OutputDetailsAndExamples.pdf doc 
file, but we have not filled in very many descriptions yet.  When 
this document is complete, this will be the place to look.

Mike




On 18 Apr 2003, at 19:46, Ian Campbell wrote:

> Hello
> Thanking you in advance for any assistance
> 
> I am a newbie having difficulty finding roof top unit models to use in
> E+. I need to model RTUS (for example Lennox and Carrier) and MTUs
> (for example Engineer Air) and electrical loads and sophisticated
> control systems for existing buildings.
> 
> I want to study existing buildings and reduce energy consumption by
> improving operations. Most of the buildings I am interested in have
> gas fired roof top units (RTU) and make up air units (MAU). They are
> commercial and industrial buildings. They have extensive electrical
> loads, and at least one has replaced lamps with new high efficiency
> versions, thereby increasing gas consumption. I want to find out the
> overall ROI from changing lamps in this case.
> 
> How can I have reviewed all the example files and find out which
> example files offer a reasonable starting place for me to begin this
> RTU/MAU analysis? In particular, how can I find RTU and MTU examples? 
> Do I have to make them from scratch?
> 
> How could I have found them myself and not have bothered all of you?
> 
> Thanks for any comments
> 
> Ian Campbell
> 
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
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