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[EnergyPlus_Support] Re: HVACtemplate:system:unitary or HVACtemplate:system:unitaryheatpump:airtoair

Thanks for your help. Then, I understand that the HVACtemplate:system:unitary ONLY includes the systems which generate heating by means of an electrical coil and the other template includes heat pump systems. Is it correct? 








--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, Jim Dirkes <jim@...> wrote:
>
> A heat pump is a "reversible" air conditioning system, so it can remove heat from the indoor air (and reject it outdoors) or the opposite.  The normal supplemental heating for cases when it is too cold outdoors for this to be effective is an electric coil.
> A typical split (unitary) system can use any type of heating coil.
> Relative efficiencies of the two systems vary greatly.
> p.s., Also, become familiar with the EnergyPlus Input Output Reference. It contains a LOT of useful information about these systems./
> 
> James V Dirkes II, PE, BEMP, LEED AP
> www.buildingperformanceteam.com<http://www.buildingperformanceteam.com/>
> Energy Analysis, Commissioning & Training Services
> 1631 Acacia Drive, Grand Rapids, MI 49504 USA
> 616 450 8653
> 
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of migue885
> Sent: Wednesday, October 17, 2012 1:31 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] HVACtemplate:system:unitary or HVACtemplate:system:unitaryheatpump:airtoair
> 
> 
> 
> 
> Hello,
> 
> I'm trying to model a split and a rooftop system but I don't know if I have to use a HVACtemplate:system:unitary or HVACtemplate:system:unitaryheatpump:airtoair.
> Could anyone tell me what is the difference between the two templates?
> 
> Thanks
>



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