System Model Help

[GoogleCodeExporter]

I am having trouble modeling a building with its designed system. This building 
has a Packaged Rooftop Air Conditioning unit with a DX coiling coil (AC-1) and 
rooftop Air Handling Unit with hot water heating and DX coiling coil (AC-2). 
The AC-1 system is zoned using fan powered terminal units with , modeled as VAV 
boxes with a series fan. I am having trouble modeling this in Energy Pro 
because it is requiring at Built-up VAV unit and won’t allow me to use the 
Packaged System. Could you provide guidance on how I could model this properly?

Original issue reported on code.google.com by f.le...@gmail.com on 25 Feb 2015 at 9:32

[GoogleCodeExporter]

I am unable to help you through your project in EnergyPro but here is how I 
would model the system you describe in CBECC-Com:

1.  In the Mechanical tab of CBECC-Com, Create an Air System of type PVAV
2.  Create Supply and Return segments for the PVAV
3.  Create an Outside Air Control object by right clicking on the AirSystem and 
fill in all details for the Economizer. If the design does not have an 
economizer choose option “NoEconomizer” under ControlMethod
4.  Right click on the supply segment and create a cooling coil of type DX, Fan 
and fill in the design capacity and efficiencies for each. 
5.  Right click on the AirSystem and create all the terminal units that are 
served by this system. Choose SeriesFanBox as option for Terminal Unit Type
6.  On each terminal unit, right click and create one Heating Coil (of capacity 
1 Btu/h  if the actual design does not have a reheat coil) and a Fan. Note that 
you will have to create a heating coil with minimum capacity (1 Btu/h) even if 
the actual design does not have reheat so that EnergyPlus has all the 
components it requires to successfully the system.

The image below is a representation of how the system should look like with all 
the required components:

Original comment by cnambiar@archenergy.com on 26 Feb 2015 at 12:05

• Changed state: WontFix