[Equest-users] EE4 Modeling Question

[Brad Robinson]

I am not sure if this is the right forum, but I can't seem to find an EE4 
specific list.  My question is concerning the way an HRV is modelled in EE4. 
 Currently I have a rooftop unit with a supply fan only, and a separate HRV.  In 
EE4, there is not option to use a separate HRV.  In order to model an HRV, a 
return fan must be specified. My first thought was to put the power for the HRV 
fans as the return fan power.  The problem is in EE4 this return fan will see 
the full flow of the unit (or almost - exhaust) where as my HRV is less than 1/4 
of the flow.  In EE4 I can only specify static pressure and efficiency for the 
fan.  Is there an accepted way model the power of the HRV fans?  Thanks for any 
help.
 
Brad Robinson P.Eng, LEED AP
brobinson at arcengineering.ca

ARCEngineering Inc.
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