Staircase Pressurized Fan Duct connection labeling.

[bluenote49]

What should I print on the labeling sticker for a Staircase pressurized fan duct?
Is "pressurized air duct" applicable? If not please provide the proper or standard way of naming it.

Thanks

 

[willard3]

General notation is positive or negative pressure ducts and is shown on the ductwork legend. For symbols, Use ASHRAE.

 

[ChasBean1]

It's really about whatever works for your facility. I'd label it by the fan name, and what it does, e.g., "SF-3, Stairwell Pressurization."