Air Make-Up Unit Code Compliance for Paint Booths
Air make-up unit code compliance for a paint booth starts with the relationship between exhaust volume and replacement air. The review should account for unit placement, intake location, discharge ductwork, heating, dampers, controls, utilities and maintenance clearance.
Discuss your installationReplacement Air Matched To Booth Demand
A paint booth exhaust system can pull a large volume of air from the building. The make-up air unit should be reviewed with the booth exhaust fans, filter condition, door behavior and adjacent room pressure so the finishing area does not fight drafts or unstable airflow.
Outdoor Intake And Discharge Layout
Unit location affects outdoor air intake, discharge duct routing and service reach. Roof curbs, wall penetrations, louvers, dampers and weather exposure should be checked along with the distance between intake openings and exhaust discharge points.
- Document where outdoor air enters the unit.
- Confirm access to filters, burners, belts, motors and dampers.
- Note roof, wall or mezzanine constraints before equipment changes.
Heat, Fuel And Electrical Interfaces
Heating equipment, fuel piping, electrical service, disconnects, control panels and interlocks need to be identified before changes are made. Facility teams should know which trades will isolate utilities, reconnect controls and confirm that the air unit starts and stops with the booth sequence.
Records To Gather Before Review
Useful preparation includes booth drawings, air unit submittals, maintenance records, filter sizes, photos, control diagrams and notes about pressure complaints, cold air complaints or door movement during spray cycles.
Frequently asked questions
Why is the air make-up unit part of booth compliance planning?
The unit replaces air removed by the booth exhaust. If it is undersized, restricted or poorly sequenced, booth pressure and airflow can become difficult to control.
What should be checked around the outdoor intake?
Review intake location, screens, louvers, nearby exhaust discharge, roof or wall penetrations, weather protection and access for filter and damper service.
Can controls affect make-up air performance?
Yes. Interlocks, dampers, temperature controls and start-stop timing can affect whether replacement air arrives when the booth exhaust is operating.
What information helps before a site visit?
Have unit drawings, booth drawings, photos, filter data, utility locations, control information and a list of operating symptoms ready for review.