Air Make Up Units for Offshore Module Finishing
Large paint booths and preparation areas for offshore and LNG modules can exhaust substantial air from the building. Double D Mechanical installs, relocates and services air make up units and the duct, controls and utility connections that support balanced finishing operations.
Discuss your installationBalancing Exhaust From Large Booths
Module coating booths may run high exhaust volumes to capture overspray around large steel assemblies. Air make up planning should consider exhaust demand, booth modes, door positions and how replacement air affects nearby work areas.
Supply Air Around Tall Frames
Replacement air should enter the finishing area without creating drafts that disturb spray patterns or uncomfortable conditions for painters. Discharge points need to account for module height, open framing and occupied work zones.
Unit Location and Utility Routing
Air make up units require space for intake, discharge, fuel or electrical service, controls and maintenance. Roof, grade or platform locations should be reviewed with structure, crane paths, wall penetrations and service clearances.
Controls With Booth Operation
The air make up unit should be coordinated with exhaust fans, booth controls, heating equipment and operating modes. Control wiring and interlocks need to be planned with the installed equipment and the plant's production needs.
Data for the Site Walk
The first review should tie air supply needs to the exhaust systems already planned or installed.
- Booth exhaust volumes or equipment data
- Preferred unit locations and duct route options
- Fuel, electrical and control panel locations
- Door usage, staging areas and production flow
Frequently asked questions
Why do module coating areas need make up air?
Exhaust fans remove large volumes of air, and replacement air helps maintain booth airflow, building pressure and workable conditions.
Can make up air be heated?
Many systems use tempered replacement air, with heating requirements coordinated around the selected equipment, utilities and coating process needs.
What affects unit placement?
Placement depends on available space, structural support, intake location, duct routing, utility access, crane clearance and maintenance reach.
What should be gathered before a walkthrough?
Gather booth and exhaust data, building drawings if available, utility locations, photos of possible unit locations and notes on operating modes.