Forgot to say…..
You must create a new inlet and outlet node for the fan.
The Building Performance Team
James V. Dirkes II, P.E., BEMP , LEED AP
1631 Acacia Drive NW
Grand Rapids, MI 49504
616 450 8653
From: Jim Dirkes [mailto:jim@xxxxxxxxxxxxxxxxxxxxxxxxxxx]
Sent: Tuesday, August 02, 2011 4:05 PM
To: 'EnergyPlus_Support@xxxxxxxxxxxxxxx'
Subject: RE: [EnergyPlus_Support] Re: Insert exhaust
Jean,
It is essentially the same as any other fan for flow, pressure rise, efficiency. It is treated differently for the purpose of air / mass balance within a zone. An air loop fan is assumed to provide the same amount of air as it returns, maintaining a mass flow balance.
Keep in mind that you must know the amount of outdoor air that is introduced to each zone as a result of your Sizing, Controller:Outdoor Air or other outdoor air-introducing objects. The Fan:ZoneExhaust extracts air from the zone (only) and E+ “watches” to make sure that you’ve got an equal amount of air to replace it from your air loop or other sources. If not, it
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