DOA unit with dummy

2 posts / 0 new
Last post

Hi All,

I would like to know if anyone can find out the reason for below.

* We created DOA unit with dummy space, dummy zones and dummy schedule. Then in the simulation output report SV-A we are able to get 10942 CFM and power demand 6.98 kW with floor area 1SF, max people zero. My question here is how we are able to get around 11000 CFM for the dummy space created. Any help is greatly appreciated.

Regards,

Soham Babu

Soham Babu's picture
Offline
Joined: 2011-09-30
Reputation: 0

Is the DOA unit set up so that other HVAC systems get their outside
air from the DOA unit? That is generally how such a DOA unit would
have that much airflow when assigned to a small dummy zone with no
real loads. On the outside air tab of the other HVAC systems, see if
the OA from system option is selected and referenced to your DOA unit.
In this manner, the DOA unit will be picking up the Outside Air
requirements of the other HVAC systems.

Regards,

James

Sent from James' iPod

James Hess's picture
Offline
Joined: 2011-09-30
Reputation: 601