Air Make-Up Unit Installation

Equipment · Double D Mechanical

Air Make-Up Unit Installation and Service

An air make-up unit replaces air removed by paint booths, blast rooms, ovens and exhaust systems so the building can maintain stable pressure and process airflow. Double D Mechanical installs, relocates and services make-up air equipment with coordination for ductwork, heating, controls, roof placement and production needs.

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Matching Exhaust Demand

Make-up air planning starts with the equipment that exhausts air from the facility. Paint booths, prep stations, blast rooms, cure ovens and general exhaust fans can interact with each other, so the unit needs to be considered as part of the full ventilation system.

Placement and Duct Routing

The unit location affects structural support, service access, weather exposure, intake air quality and duct runs to the work area. Roof-mounted, indoor and sidewall arrangements each bring different clearance and maintenance considerations.

Heat Source and Controls

Make-up air units may include heating and control sequences that respond to booth operation or building conditions. Gas service, electrical power, control wiring, dampers and interlocks should be coordinated before installation begins.

Pressure and Production Effects

When replacement air is not balanced with exhaust, doors can slam, booth airflow can drift, dust can move between departments and ovens can see unwanted drafts. Proper installation and service help the finishing area operate more predictably.

Information for a Site Review

Useful information includes exhaust equipment details, existing unit data, building layout, roof access, utility locations, control requirements, photos of intake and discharge areas, and any known pressure or comfort issues in the plant.

Project questions

Frequently asked questions

Why does a paint booth need make-up air?

A booth exhausts a large volume of air. Replacing that air helps maintain booth airflow, building pressure and operator comfort.

Can one make-up air unit serve multiple systems?

Sometimes, but the exhaust loads, control sequence, duct layout and operating schedule need to be reviewed to avoid pressure swings.

What maintenance access is needed?

Filters, belts, motors, burners or heat exchangers, dampers, controls and access panels should be reachable for inspection and service.

What signs point to make-up air problems?

Hard-to-open doors, drifting overspray, dust movement, unstable booth balance, cold drafts or changing oven performance can all point to replacement air issues.