Which sheets should be coordinated?
Use the approved equipment outline and project requirements to decide the sheets. Keep the GA, detail sheets and schedules connected through tags and references.
| Sheet | Purpose | Source |
|---|---|---|
| General arrangement | Overall envelope and access | Equipment and site data |
| Elevations | Openings and interfaces | Approved GA |
| Panel detail | Construction and joint detail | Design detail |
| Louver detail | Airflow and weather interface | Product data |
| Penetrations | Cable, exhaust and fuel | Interface register |
Sources: National Fire Protection Association: NFPA 110, Standard for Emergency and Standby Power Systems, ASHRAE: ASHRAE Handbook
How should revisions be managed?
Record the source revision, affected sheet, change reason and reviewer. A vendor outline change can affect every downstream drawing, so the drawing list should be checked as a set.
- Register vendor changes
- Cross-check all affected sheets
- Keep open items visible
- Issue native and review files together
- Retain the prior revision
What remains outside the pack?
Performance certification, acoustic guarantees, structural engineering and final equipment approval remain outside a drafting pack unless qualified review is separately arranged.
Sources: US Environmental Protection Agency: Generator enclosure design guidance, ASHRAE: ASHRAE Handbook
Common questions
What else should the bid team know?
Does a drawing pack certify acoustic or thermal performance?
No. Acoustic predictions, ventilation performance and certification require qualified review against the project inputs and applicable requirements.
Can enclosure dimensions be guessed from the genset name?
No. Use the approved vendor outline, service clearances and project constraints. Missing dimensions remain open.
Who approves the engineering design?
The responsible registered engineer or qualified project reviewer approves engineering content and performs sign-off.
Primary sources
- Generator enclosure design guidanceUS Environmental Protection Agency
- NFPA 110, Standard for Emergency and Standby Power SystemsNational Fire Protection Association
- ASHRAE HandbookASHRAE