North Carolina Air Make-Up Units for Finishing Systems
Large paint booths for heavy equipment move huge volumes of air, and replacing that air is a design job as big as the booth itself. Double D Mechanical installs, replaces and connects air make-up units for North Carolina finishing operations, sized for the exhaust and planned for the building.
Discuss your installationHeavy Equipment Booths, Heavy Airflow
Paint booths for heavy equipment components, like those tied to Deere's excavator plant in Kernersville, are large, and airflow scales with booth size. AMUs for those booths are correspondingly large, often roof-mounted or on structural platforms. Structural support, crane access for setting the unit and roof penetrations are part of the planning.
Building-Wide Air Balance
Plants with several finishing systems, such as booths, blast rooms, ovens and washers, need a building air balance. If one AMU is undersized or a system without make-up air is added, the whole building goes negative and every system suffers. We map exhaust and supply across the building as part of AMU projects.
Installation Checklist
On a North Carolina AMU install we cover:
- Structural support or curb for the unit
- Rigging and setting
- Gas piping and regulator
- Supply duct to booth or space
- Electrical coordination for fan and controls
- Interlocks with booth exhaust
- Startup, burner tuning and air balancing
Questions to Answer Before a Visit
Which systems exhaust air now, and how much? Are there plans for more? Where can a unit sit? What is the gas service size? Photos of the roof, gas meter and existing equipment help.
Planning a booth or oven project in North Carolina
Crews mobilize from Houston; North Carolina is roughly 950 miles away, so equipment, panels and tooling are staged and shipped ahead of the install crew.
Manufacturing in North Carolina is concentrated around Charlotte, Raleigh and Durham, Greensboro, and Winston-Salem. The sectors most likely to be specifying spray booths, blast rooms, powder systems and cure ovens there include aerospace, automotive and EV, furniture, and heavy trucks.
Hot, humid summers and mild winters put the emphasis on make-up air cooling or tempering, filter change schedules and keeping intake away from loading doors.
Frequently asked questions
How do we know how much make-up air we need?
Add up the exhaust from all systems running at the same time. Make-up air should replace that volume, with adjustments for intended building pressure.
Can an AMU be floor-mounted?
Yes, where roof mounting is impractical. Intake ducting brings outside air to the unit.
Why are our doors hard to open?
The building is likely negative because exhaust exceeds make-up air. Adding or adjusting AMU capacity usually fixes it.
Do you set AMUs with a crane?
Large roof units are typically set by crane. We coordinate rigging as part of the install.