Submittals

Fire Alarm Shop Drawings: What Reviewers Look For

FUEGOAI Engineering Team · August 2026 · 6 min read

A fire alarm submittal is judged in the first few minutes of review. Complete packages with consistent numbers move fast; packages missing a calculation or a matrix accumulate comment cycles — and every cycle costs schedule. Here's what a complete shop drawing package contains, and what reviewers check first.

The core checklist

• Floor plans with every device located, addressed, and labeled — plus circuit routing and end-of-line locations.
• Riser diagram showing panels, power supplies, circuits, and device counts that reconcile with the plans.
• Sequence of operations / input-output matrix — what each initiating event does to notification, HVAC, elevators, doors, and monitoring.
• Battery calculations for the panel and every power supply, reflecting final device counts.
• Voltage drop calculations per notification circuit at worst-case voltage.
• Device data sheets (cut sheets) for every product model in the package, marked to show which model applies.
• Symbol legend and general notes including wiring types, survivability requirements, and mounting heights.
• Code summary — applicable codes and editions, occupancy classification, and the AHJ of record.

What gets checked first

Reviewers triage. In our experience the first pass almost always covers: do the device counts match between plans, riser, and calcs; are the battery and voltage drop calculations present and current; does the matrix cover the building's interfaces (elevator recall, door holders, HVAC shutdown, kitchen suppression); and does the title block carry the right project and licensure information. Pass those four and the detailed review starts from trust instead of suspicion.

Practices that shorten approval

• Respond to every comment in writing, item by item, and cloud every change on the resubmittal — make the reviewer's second pass trivial.
• Keep one source of truth. When counts change on the plan, the riser and calcs must update in the same revision. Most bounced resubmittals fail on exactly this.
• Ask the AHJ early. A five-minute call about local amendments before design starts beats a comment cycle after submittal.
• Design for the installer too. Clear addressing schemes and wire tagging reduce RFIs during construction — which reflects back on the design firm.