Which interfaces belong on the GA?
Use the approved generator outline and project basis, then route each unresolved interface to the responsible discipline.
| Layer | Show | Reviewer |
|---|---|---|
| Equipment | Footprint and service faces | Genset supplier |
| Air | Inlet and discharge path | Mechanical engineer |
| Noise | Treatment and test positions | Acoustic specialist |
| Access | Doors, lift and maintenance zones | Project team |
| Utilities | Fuel, cable and exhaust entries | Discipline owners |
Why is air-path coordination critical?
Cummins' application manual explains that ventilation supplies combustion air, removes heat and fumes, and applies its room principles to enclosures. Caterpillar notes that restriction and heating affect the ambient capability of an enclosed generator set.
Sources: Cummins: Application Manual: Liquid Cooled Generator Sets, ventilation chapter, Caterpillar: Ambient Capability of Enclosed Generator Sets
What remains an engineering decision?
Cooling performance, acoustic treatment, structural capacity, fire requirements and code compliance need qualified project review. Engineering sign-off is performed only by the registered engineer responsible for the job.
Common questions
What else should the bid team know?
Can one GA define all engineering requirements?
No. It coordinates approved inputs and points to the calculations and specifications that control them.
Should clearances be copied from another genset?
No. Use the selected equipment data and applicable project requirements.
Are these drawings for portable generator boxes?
No. The site addresses engineered industrial genset packages and enclosures.
Primary sources
- Application Manual: Liquid Cooled Generator Sets, ventilation chapterCummins
- Ambient Capability of Enclosed Generator SetsCaterpillar
- ISO 8528-10:2022, Measurement of airborne noiseInternational Organization for Standardization
- ISO 3744:2025, Determination of sound power levelsInternational Organization for Standardization