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weppy

toy web viewer for eppy

You can view the files but cannot edit it yet.

Shows some of the interconnections between the idf objects

Playing with weppy

  • open one of the idf files (5ZoneReturnFan.idf is a good one)
  • click on CONSTRUCTION
  • click on one of the constructions
    • click on the "?"
    • click on "docs"
    • click on "show links to other objects"
      • follow the new links
      • go back
    • click on "run functions of this object"
      • go back
    • click on "Show objects that mention this object"
      • follow the new links
  • go to PLANTLOOP
    • click on one of the loops
    • click on "show node connections"
      • It will show you what components this connected to.
  • go to CHILLER:ELECTRICS
    • click on "Central Chiller"
    • at the bottom of that page click on "prev objects & next objects"
      • will show you a list of objects the chiller is connected to with a diagram of the connection

You can try this with other objects

that is all so far.

Notes

  • Weppy was initially written in about 2-3 days. It was written to assist in a presentation on E+.
  • Now it has become a useful tool to understand how E+ builds it's HVAC.
  • This understanding is being used to further develop functions in eppy
  • Apart from this, weppy is showing potential for being a good viewer for E+.
  • You are welcome to fork it and build such a viewer.
    • the eppy team may be motivated to write functions that will assist you in this.
  • Any comments or ideas for further development can be posted as an issue (or as a comment in an issue) in weppy

Installation

  • clone weppy
  • git clone https://github.com/santoshphilip/weppy.git into a folder of your choice
  • create a virtual environment
  • pip install -r requirements.txt

Note 1: weppy uses a modified version of eppy. If you already have eppy installed, unistall it by doing pip uninstall eppy then do pip install -r requirements.txt

Note 2:Install graphviz from here to view the diagrams

Running weppy

where do the idf files come from

take a look at the file idffilenames.txt

where does the idd file come from

It is hard coded in eppystuff.py. Change it if you need to.