[EnergyPlus_Support] Measuring energy input to the rooms [1 Attachment]

[<qureshi.faran@xxxxxxxxx>]

Hello,

I am currently trying to measure from the amount of energy entering/leaving  in the rooms through the heating system.
I have found out that the   
Output:Variable,*,Zone/Sys Sensible Cooling Rate,hourly; !- HVAC Average [W] might do the trick but I now noticed something that makes me wonder.

I am currently using the ASHRAE standard commercial building model MediumOffice (location, Baltimore). It can be found there. I enclose a copy that i translated to version 7.2 of E+. This building has 3 stories with 3x5 zones + 3 plenums, where the return air paths are located. There is no terminal unit in the plenums. However, the record of Zone/Sys Sensible Cooling Rate for the plenums is non zero, but it is not clear for me where this energy is supposed to come from.

Can someone give me pointers on that or indicate the right way of isolating what i am looking for ?

Thanks in advance,

Tomasz

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Attachment not found:
d:\eudora\attach\ASHRAE30pct.PI.Final11_OfficeMedium_STD2010_Baltimore.idf