How model variables in Vista are all related

[sasacemesova]

Hi,

I have been working with IES for a while now but I haven't managed to find anywhere exactly what all the variables are composed from. I have managed to break some down by myself (i.e. total system energy is made of Ap Sys Chillers energy + Ap Sys Boilers Space Cond'g energy +...) but it would be really useful to know what all the variables include.

Any help would be much appreciated, thank you in advance!
Sasa