[Equest-users] ERV used as make-up air

[B. Fountain]

I would just model each RTU with their own ERV of the equivalent
effectivenss as the combined unit and proportion the ERV fan energy
between the 3 systems.

You can then apply the DCV control strategy (which is not available if you
try the OA-FROM-SYSTEM path).

> Hello all,
>
>
>
> Is there anyone who can give me some pointers on how to model this?
> Basically, I am trying to model a standalone store, with the retail area
> being served by three unitary RTU's.  I have divided the retail area
> into three thermal zones (for each RTU).  However, a separate ERV is
> supplying OA to the entire retail area @ 900cfm continuously during
> store hours.  The RTUs has CO2 sensors such that it will bring in
> additional fresh air if demand is greater than the ERV supply.  How
> should I model this?
>
>
>
> Regards,
>
>
>
> Victor Yeung, BASc, LEED AP
>
> Inviro Engineered Systems Ltd.
>
>
>
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