Air Make-Up Unit Installation for Mississippi Paint Booths
A Mississippi spray booth pulls a large volume of outdoor air through the room every hour it runs, and that air is often warm and damp in summer and cold enough on winter mornings to slow flash-off. Double D Mechanical installs paint booth heaters and air make-up units that temper the incoming air before it reaches the spray zone, with the unit, supply duct, gas, power and controls laid out so the booth holds steady conditions from the first coat to the last.
Discuss your installationWhat Damp Intake Air Does to a Finish
Moisture-heavy replacement air can stretch flash times, encourage blush on moisture-sensitive coatings, and leave condensation on cold steel parts rolled in from an unheated yard. Raising the air temperature lowers its relative humidity at the spray zone, even though the heater does not remove water from the air. The useful starting point is the coating's temperature window and how the booth is actually used through the year.
- Temperature and flash requirements from the coating data sheets
- Typical part temperature when parts enter the booth
- Booth run hours in the hot months compared with the cool months
One Unit per Booth or a Shared Unit
Some plants give each booth its own heater. Others feed two booths, or a booth and a prep area, from one larger unit. A shared unit saves a roof opening and a gas run, but it needs dampers and controls that still deliver the right share of air to each space when the other one is idle. Exhaust volumes for every space are mapped before the choice is made.
Enclosure and Electrical Work in the State
Mississippi has seen new electrical equipment investment, including the Siemens Energy HV switchgear plant in Richland and the Jabil data-center infrastructure plant in Marshall County. Housings, cabinets and frames for that kind of equipment are routinely painted or powder coated, and finishing rooms that run long shifts lean hard on their make-up air through every season.
Getting Ready for the Lift
Setting the unit is the short part of the job. The curb or stand, gas stub-out, electrical disconnect, control conduit and supply duct opening should all be in place before the crane shows up, so the set day ends with connections rather than open questions.
- Roof curb or equipment stand built and flashed
- Gas line sized and stubbed to the unit location
- Disconnect and control conduit in place
- Booth plenum connection measured and ready
Keeping the Heater Serviceable
Filters, belts, the burner, flame sensing parts and motors all need regular attention. The layout leaves a clear path to the access doors, room to slide filter racks out, and a safe route across the roof or platform for whoever does that work on a hot afternoon.
Planning a booth or oven project in Mississippi
Crews mobilize from Houston; Mississippi is roughly 350 miles away, so equipment, panels and tooling are staged and shipped ahead of the install crew.
Manufacturing in Mississippi is concentrated around Jackson, Gulfport and Biloxi, Hattiesburg, and Tupelo. The sectors most likely to be specifying spray booths, blast rooms, powder systems and cure ovens there include shipbuilding, automotive assembly, furniture, and power equipment.
High humidity most of the year means intake air drying, booth heater sizing for spray and bake, and corrosion-resistant hardware matter more than usual.
Frequently asked questions
Does a heater help with humidity in a Mississippi paint booth?
Heating the air lowers its relative humidity at the spray zone, which helps flash and cure. It does not dehumidify, so if moisture is the main finish problem, that should be raised during the review so the plan matches the goal.
Can one air make-up unit serve two booths?
It can, with dampers and controls set up so each booth still receives its required air. Whether it makes sense depends on how often the booths run at the same time and how far apart they sit.
Direct-fired or indirect-fired: which is used on paint booths?
Both are used. The choice depends on the coatings, fuel availability, local requirements and the booth maker's guidance, and it is settled against the booth data rather than assumed.
What needs to be finished before the unit is lifted?
The curb or stand, gas stub-out, electrical disconnect, control conduit and the duct opening into the booth plenum. Having those done keeps the set day short.
What should a plant near Jackson send ahead of a site visit?
Booth model and exhaust fan data, roof framing information, gas service size, the electrical panel schedule, photos of the roof and the proposed duct route, and notes on when finish problems tend to show up.