Makeup air is the system nobody thinks about until the building goes negative and doors get hard to open, exhaust fans stop pulling and combustion appliances start backdrafting. Because its failure shows up as symptoms elsewhere in the building, it is diagnosed late and often replaced rather than serviced.
The failure modes worth designing a maintenance schedule around — in rough order of what they cost when they happen.
Recording that a PM was "done" tells you nothing next quarter. These are the readings that let you see a failure coming — and the reason ChatterFix captures measurements against the asset rather than just completions.
The parts whose absence turns a short repair into a long outage.
The PMs ChatterFix schedules against this equipment, with intervals and time estimates.
ChatterFix builds this asset, its components, and its PM schedule automatically when you pick your industry — then your technicians update it by talking, not typing.