Fire Suppression Systems Compliance Checklist for LA Restaurants

LAFC Hood System and Ductwork Requirements

Los Angeles Fire Code Article 9.02 mandates that all Type I and Type II commercial cooking appliances must be protected by an approved wet chemical suppression system. Your hood system must be fully ducted, sealed, and UL-listed for your equipment type. Ductwork requires inspection at minimum annually by a certified fire protection contractor, with documentation retained on-site. Grease accumulation in ducts is a primary violation—ductwork must be cleaned at intervals specified by your suppression system manufacturer (typically quarterly for high-volume operations). The hood must be equipped with a thermoplastic or stainless steel baffle system to direct heat away from the discharge duct.

Suppression System Maintenance and Agent Compliance

LAFC requires wet chemical suppression systems (using Class K agents like potassium acetate or potassium carbonate compounds) to be inspected and serviced every 6 months by a licensed fire protection company—inspections must be documented on the system nameplate. Pressure gauges must show green zone readings at all times; red-zone readings trigger immediate service. Dry powder systems serving grease-laden operations require similar compliance schedules. All agent cartridges and tanks must have current hydrostatic test certificates if applicable. Your suppression system must be tied to manual pull stations within 5 feet of cooking equipment and integrated with kitchen ventilation shutoff controls where required by LAFD.

Common LAFD Inspection Violations and Prevention

Frequent violations include missing or expired inspection tags, inadequate hood cleaning records, undersized or non-compliant suppression agents for your equipment type, and blocked access to manual pull stations. LAFD inspectors verify that suppression system servicing records match the inspection schedule—gaps of more than 6 months result in citations. Grease deposits visible in hood filters or plenum areas are automatic violations. Missing laminar flow baffles, corroded ductwork, or improperly mounted nozzles are structural violations requiring immediate remediation. Maintain a digital or physical log of all hood cleaning, suppression service visits, and any repairs—these documents are your primary defense during inspection.

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