.Buildings.Controls.OBC.ASHRAE.G36.AHUs.SingleZone.VAV.SetPoints.ReturnFan

Information

Sequence for controlling return fan yRetFan for single AHUs. It is implemented according to Section 5.18.10 of ASHRAE Guideline G36, May 2020.

• Exhaust damper shall open whenever associated supply fan is proven on.
• Return fan shall run whenever associated supply fan is proven on.
• Return fan speed shall be the same as supply fan speed with a user adjustable offset. See Section 3.2.1.5 for details about the offset.
• Exhaust damper shall be closed when return fan is disabled.

Revisions

• May 20, 2021, by Jianjun Hu:
  First implementation.