Air Make-Up Units for Fabricated Metal Parts
Finishing equipment for fabricated metal parts can exhaust a large volume of air through paint booths, blast areas and coating systems. An air make-up unit helps replace that air in a controlled way so booths and surrounding work areas operate as intended. Double D Mechanical installs, relocates and connects air make-up units with coordination for ductwork, heat, controls, roof or pad placement and service access.
Discuss your installationMatching Supply Air to Exhaust Loads
Booth exhaust, blast dust collection and oven ventilation can all affect plant pressure. The air make-up unit should be reviewed with the exhaust equipment it serves so supply location, airflow direction and control sequencing support the finishing process.
Unit Placement and Duct Routing
Roof, mezzanine, exterior pad and indoor locations each create different duct, structure and service requirements. Duct routing should account for booth openings, ceiling obstructions, cranes, lights, sprinklers and maintenance paths.
Heat Source and Controls
Gas, electric or other heating arrangements need coordinated fuel or power connections, safeties and control wiring. Controls should be planned with booth operation, fan status and temperature requirements in mind.
Service Clearance Around the Equipment
Filters, belts, motors, burners or heaters, control panels and dampers need space for inspection and replacement. Access should remain practical after ductwork, piping and electrical work are complete.
Information for Field Review
Useful details include the booths or systems being served, exhaust fan data, desired unit location, available utilities, roof or wall construction, control expectations and photos of the proposed installation area. Existing drawings help identify pressure and routing issues early.
Frequently asked questions
Why is make-up air important for finishing areas?
Exhausted air must be replaced so booths and surrounding spaces can maintain stable airflow, temperature and pressure relationships.
Can one unit serve more than one booth?
Sometimes, depending on airflow requirements, operating sequence, duct routing and control design. The equipment and process should be reviewed together.
Where can an air make-up unit be installed?
Common options include rooftop placement, exterior pads, mezzanines or indoor mechanical areas, depending on structure, access, duct routing and utility availability.
What utilities are commonly coordinated?
Electrical service, gas piping or other heat source connections, controls, ductwork, dampers and sometimes roof curbs or structural supports are coordinated.
What should be ready before planning a replacement?
Have existing unit information, exhaust fan data, photos, utility details, roof or pad access notes and any current airflow or comfort concerns ready.