Air Make-Up Units for Rail Transit Shops
Rail transit paint and maintenance facilities need controlled replacement air when car body booths, component coating areas, prep spaces and exhaust systems operate. Double D Mechanical installs, relocates and services air make-up units with practical coordination around tracks, large doors, duct routes, utilities and maintenance access.
Discuss your installationReplacement Air Beside Track Work
Rail cars, trucks, doors, panels and support equipment can create long work envelopes. Air make-up should be introduced so it supports exhaust capture without creating cross drafts along the car body or pulling air from repair areas into finishing spaces. Track alignment and clearance along platforms are important parts of the layout review.
Duct Routing in Transit Facilities
Transit shops often include high doors, overhead utilities, pits, platforms, cranes and lighting over fixed tracks. Ductwork and unit placement should avoid those constraints while keeping fan, filter, damper and heat sections accessible for service.
Controls With Booth and Exhaust Systems
The air make-up unit should be coordinated with paint booth exhaust, component room exhaust or other process ventilation. Electrical power, fuel, control wiring and interlocks need to be sequenced with other trades so startup activities can proceed cleanly.
Information to Bring to the Walkthrough
Have track layouts, equipment drawings, exhaust fan data, car clearance envelopes, utility locations and roof or wall access details ready. Photos of existing fans, ductwork and service platforms help identify routing options and maintenance constraints.
Frequently asked questions
Why is make-up air important in rail transit paint areas?
Rail paint and prep exhaust can move large volumes of air, so replacement air helps stabilize pressure and airflow around long vehicles and components.
What shop features affect unit placement?
Tracks, pits, platforms, high doors, cranes, roof structure, utility mains and service aisles all affect where the unit and duct can go.
Can an air make-up unit support a rail car booth?
It can be planned as part of the booth ventilation system when airflow, duct routing, controls and heating requirements are reviewed together.
What access should remain clear?
Filters, fans, dampers, heat sections, control panels and roof or platform service points should remain reachable after installation.