Relief damper control for AHUs using actuated dampers without fan
Sequence for controlling actuated relief damper
yRelDam for AHUs using actuated relief damper without
a fan. It is implemented according to Section 5.16.8 of ASHRAE
Guideline G36, May 2020.
- Relief dampers shall be enabled when the associated supply fan
is proven on (
u1SupFan = true), and disabled
otherwise.
- When enabled, use a P-only control loop to modulate relief
dampers to maintain building static pressure
dpBui at
its setpoint, which is by defaul 12 Pa (0.05
inchWC).
- Close damper when disabled.
- May 20, 2021, by Jianjun Hu:
First implementation.
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