Illinois Air Make-Up Units for Booths, Ovens and Blast Rooms
In a heated Illinois plant, replacing exhaust air with untempered outdoor air is a fast way to make a shop miserable and a coating process unpredictable. Heated air make-up units bring outside air to a controlled temperature before it reaches the booth or the floor. Double D Mechanical installs, replaces and services AMUs for Illinois finishing operations.
Discuss your installationBig Exhaust Volumes in Trailer Plants
Trailer manufacturing, like Hyundai Translead's plants in Will County, typically involves long paint booths, blast rooms and coating lines that move a lot of air. Each needs replacement air, and in a plant with several finishing systems, the combined make-up requirement is substantial. Planning AMUs per system or for the building as a whole is a key early decision.
Burner Capacity and Temperature Rise
AMU burner size depends on airflow and how much the air must be heated. In cold weather, raising large volumes of air to a comfortable or process-appropriate temperature takes significant gas input. Gas service capacity often becomes a constraint, so we check meter and piping size early.
Controls That Track the Booth
Modern AMU setups integrate with booth controls.
- Supply starts with the booth exhaust fan
- Discharge temperature setpoint for spray and cure modes
- Damper control for recirculation during cure on some booths
- Pressure sensing to hold booth balance
- Safety interlocks and flame supervision
Seasonal Service
Before heating season, AMU burners, flame safeguards, filters, belts and dampers should be checked. We service AMUs and recommend preseason inspections so units are ready when cold air arrives.
Planning a booth or oven project in Illinois
Crews mobilize from Houston; Illinois is roughly 950 miles away, so equipment, panels and tooling are staged and shipped ahead of the install crew.
Manufacturing in Illinois is concentrated around Chicago, Peoria, Rockford, and Champaign. The sectors most likely to be specifying spray booths, blast rooms, powder systems and cure ovens there include heavy equipment and machinery, food processing, metal fabrication, and transportation equipment.
Cold winters mean make-up air heaters are sized for sub-freezing intake, and booth or oven placement has to account for frost lines, snow loads on roof penetrations and winter slab work.
Frequently asked questions
Our booth runs cold on winter mornings. Where do we start?
The AMU may be undersized, the burner may not be firing properly, or controls may not be holding setpoint. A service visit can diagnose it.
Can gas service limit AMU size?
Yes. Large burners need adequate gas pressure and volume. Meter and piping upgrades may be needed.
Should each booth have its own AMU?
Dedicated units simplify control and balancing. Shared units are possible with proper design.
Do blast rooms need heated make-up air?
Blast room collectors exhaust a lot of air. In heated buildings, tempered make-up air keeps the building comfortable and balanced.