High Duct Static pressure Cut-Out Requirements

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What is the code requirements for High Duct Static pressure cutouts?

Manual cutout switches used to be required to be connected directly to the fan to stop fan when failure occurs. Is this still the case, or is transmitter running the DDC and letting DDC control the fan cutout now allowed?

 

Kindest Regards,

Brian

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Posted by Brian
Asked On July 30, 2020 3:58 PM
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