Match the suppression design to the current cooking equipment layout under each hood, then trace the fuel and power shutoffs, exhaust, and alarm connections. AI can flag document conflicts; the listed system designer and installer confirm coverage and compliance.
What does NFPA 17A cover?
NFPA 17A is the Standard for Wet Chemical Extinguishing Systems. NFPA describes minimum requirements for pre-engineered wet chemical fire extinguishing systems, for those who purchase, design, install, test, inspect, approve, list, operate, or maintain them.
NFPA’s official NFPA 17A page identifies the 2027 edition as current when checked on October 1, 2026. Confirm the edition, local amendments, and project scope that actually govern the work. The publisher’s newest edition does not establish local adoption.
Wet chemical systems are pre-engineered and listed, so the manufacturer’s listed design and installation information governs much of the detail. Record which system the specification names and which hood and appliances it protects. The NFPA 96 guide covers the exhaust and hood construction that the suppression system protects.
Bring the cooking line and every shutoff
Collect the kitchen equipment plan and schedule, hood shop drawings or hood schedule, mechanical exhaust plans, plumbing and gas plans, electrical plans for appliance and hood circuits, the suppression layout or submittal, and fire alarm interface documents. Include the kitchen equipment and suppression specifications.
Kitchen equipment often changes late. Compare the issue dates of the equipment schedule and the suppression layout, and record any appliance shown on one but not the other.
Check the cooking line against the suppression design
| Review question | Sources to compare | Decision to record |
|---|---|---|
| Appliances under the hood | Equipment plan and schedule, hood drawings, suppression layout | Identify appliances added, moved, or replaced since the suppression layout was drawn. |
| Hood and duct protection | Hood schedule, exhaust plans, suppression layout | Confirm the same hoods, plenums, and ducts are named in each document. |
| Fuel shutoff | Gas piping plan, suppression notes, shutoff valve details | Trace the shutoff the suppression system operates for each fuel supply. |
| Electrical shutoff | Electrical plans, panel schedules, appliance circuits | Match the appliance circuits the design expects to de-energize. |
| Alarm connection | Fire alarm plans and matrix, suppression panel notes | Reconcile how system operation reports to the building alarm, where one exists. |
| Manual release and extinguisher | Suppression layout, egress path, extinguisher locations | Ask the designer to confirm the location of manual pull stations and portable extinguishers. |
Use the commercial kitchen drawing checklist to follow equipment and services across the package, and the NFPA 10 extinguisher guide for the portable extinguisher near the cooking line.
Example: a new fryer appears on only the equipment plan
Hypothetical example. The revised kitchen equipment schedule adds a second fryer at the end of the cooking line, while the hood suppression layout still shows the earlier line-up. The gas piping plan includes the new fryer connection.
The current equipment schedule and gas plan add a fryer under the hood that the suppression layout does not show. Please confirm the protected appliances and coordinate the suppression design with the current cooking line.
The suppression designer updates the layout using the manufacturer’s listed design information, and the kitchen consultant confirms the final line-up. The conflict is a question for the designer, not a coverage calculation.
Review hood suppression documents with Groundbook
Upload the current project PDFs and relevant specifications to Groundbook. Identify the governing issues and add the applicable NFPA 17A reference from a copy you are licensed to use, where the license permits uploading it. State the edition, amendments, review area, and known exclusions in your instructions.
Compare the kitchen hood suppression layout with the current kitchen equipment schedule, hood drawings, exhaust plans, gas and electrical shutoffs, and fire alarm interface. Flag appliances or shutoffs that appear in one document but not another. Use the supplied NFPA 17A reference where applicable and cite both sources.
Groundbook links each potential finding to the plan or schedule it came from. Verify the appliance identity and revision before sending a question, and route gas, electrical, and alarm items to their disciplines.
Document review does not confirm nozzle coverage, agent quantity, listing compliance, or system acceptance. Those depend on the manufacturer’s listed design and the qualified installer, inspector, and authority having jurisdiction.