Hood Fire Suppression Issues, Same-Day Hood-Side Coordination

Important distinction. Fire suppression installation, certification, and recharge after discharge is regulated trade requiring California State Fire Marshal contractor license — separate from BHGS appliance repair. We don't do new Ansul installation, post-discharge recharge, or annual UL-300 certification. We do hood-side coordination: gas shut-off valve operational test (verifies the gas valve responds to suppression trigger), fusible link inspection (180°F or 220°F rating depending on cooking equipment underneath), manual pull station accessibility, hood plenum detection link routing, baffle filter compliance with suppression coverage map. We work alongside your Ansul service contractor (Cintas, ADT Commercial, Allied Universal, local LA fire-protection specialists) on the hood-side integration.

Both are wet-chemical UL-300 systems used in commercial kitchen hoods. Ansul R-102 (Tyco/Johnson Controls brand) has the largest LA installed base — most restaurant hoods we service have R-102. Pyro-Chem KitchenGard (also Tyco) is the secondary line, common at chain restaurants and operations standardized on Pyro-Chem branding. Amerex KP and Buckeye Kitchen Mister are the minority. Hood-side coordination work we do is similar across all four (gas valve trigger test, link inspection, manual pull access). Customer-side contractor relationship for actual suppression service is brand-specific.

Fusible links inside the hood plenum melt at specific temperature thresholds to trigger suppression discharge automatically. Two common ratings in LA commercial kitchens: 180°F links for low-temperature cooking equipment underneath (steamers, kettles, holding equipment) and 220°F links for high-temperature cooking (charbroilers, fryers, ranges, woks). Each cooking position needs a link sized to that equipment's normal operating temperature ceiling. Replacement cadence: visually inspected at every annual NFPA 96 hood cleaning, replaced on schedule per California State Fire Marshal contractor recommendation (typically year 5-7 even without discharge). Link inspection is included in our hood-side service; actual link replacement is suppression-contractor work.

Two separate requirements that often confuse operators. NFPA 96 covers the hood + duct + exhaust fan grease-management cleaning, frequency depending on cooking volume (monthly for high-volume frying like commercial fryers; quarterly mid-volume; semi-annual low-volume; annual minimum for any commercial cooking operation). We do NFPA 96 hood cleaning — see grease-buildup page. UL-300 certification on the fire suppression system is six-month inspection by California State Fire Marshal licensed contractor — separate scope, separate license. We coordinate with your suppression contractor to align scheduling so both inspections happen efficiently.

California Fire Code requires manual pull stations be readily accessible for kitchen staff to trigger suppression manually if automated detection lags or fails. Common compliance issues: pull station blocked by stored equipment, mounting height non-compliant (must be 42-48 inches from floor), signage faded or missing, pull station mounted in path-of-egress conflict. LA Fire Marshal flags these on routine inspection. We document accessibility on every hood service visit; if the pull station is blocked or the signage is faded, we report it on the invoice and the operator addresses before the next inspection. About 15 percent of LA Fire Marshal hood inspection failures we see resolve at simple accessibility issues, no equipment work needed.

When fire suppression discharges, the gas supply to all cooking equipment under the hood must shut off automatically (mechanical or electric solenoid valve, depending on installation era and code). The shut-off valve is suppression-contractor work to install and certify; hood-side, we verify the valve is in the supply line, trigger-line is connected from suppression panel, gas-line connections are tight and unblocked, and that the valve passes a manual operational test under controlled conditions (we don't trigger actual suppression — we test the gas valve closure independently). About 8 percent of hood service calls in our experience identify gas shut-off valve issues that escaped suppression-contractor attention; we coordinate the fix with the suppression contractor.

90 days SDAR labor and parts on hood-side work we perform. Suppression-system work (Ansul, Pyro-Chem, Amerex, Buckeye) processed separately by California State Fire Marshal licensed contractor. We coordinate with your suppression vendor on scheduling and paperwork. BHGS #A49573, BBB A+ accredited, EPA 608 Universal certified #1346255700410. CSLB C-20 HVAC scope for ventilation-system work.