Air Make-Up Units for Aerospace MRO
Aerospace MRO finishing and prep areas depend on controlled air replacement when paint booths, hangars, blast rooms and exhaust systems are operating. Double D Mechanical installs, relocates and services air make-up units with attention to component access, pressure balance, duct routing, utilities and maintenance space.
Discuss your installationPressure Support Near Aircraft Work
MRO facilities may handle nacelles, fairings, control surfaces, ground support equipment or full aircraft areas. Exhaust from finishing and prep equipment can pull on adjacent spaces if replacement air is not planned with the process. Air make-up layout should consider open hangar doors, masking zones, lifts, staging carts and controlled work areas.
Routing Above Busy Maintenance Bays
Duct and unit placement must work around overhead doors, fall protection, cranes, lighting, fire protection, access platforms and roof structure. The route from outdoor intake to discharge points should avoid creating uncomfortable drafts across work stands while keeping filters, dampers and fans reachable for service.
Utilities and Operating Modes
Electrical service, heat source connections, controls and interlocks should be coordinated with booth or hangar operation. When multiple exhaust points run at different times, control logic and balancing become part of the mechanical planning rather than an afterthought.
Walkdown Details to Collect
Before a site review, gather booth or hangar drawings, exhaust fan information, ceiling and roof constraints, utility locations, aircraft or component envelopes and planned work shifts. Photos of existing duct, access doors and roof equipment help identify connection points and clearance issues.
Frequently asked questions
What does an air make-up unit do in an aerospace MRO facility?
It replaces air exhausted by paint, prep or blast equipment so the work area can maintain more stable pressure and temperature during operation.
What makes MRO air make-up planning different from a smaller shop?
Large openings, tall work stands, aircraft clearances and multiple controlled areas can make duct placement and air distribution more complex.
Can an existing unit be relocated during a shop reconfiguration?
Relocation can be evaluated by reviewing unit condition, duct paths, utility changes, roof openings, controls and the new equipment sequence.
What should remain accessible after installation?
Filters, fan sections, heat components, dampers, access panels, sensors and controls should have clear maintenance space.