Fire Alarm and Sprinkler Modifications Without Permit
A 30,000 ft², three-story office building has an existing addressable fire alarm system and a wet sprinkler system. A tenant remodel on the second floor adds 12 offices and a break room, relocates 15 sprinkler heads, and adds four smoke detectors. The contractor completed the work without an alarm permit. The fire alarm panel shows a supervisory tamper signal and a trouble signal for a missing device. The contractor provides a handwritten sketch but no as-built drawings, no battery calculations, and no acceptance test records. The building owner wants a certificate of occupancy for the suite. You are the inspector assigned to the final inspection. The suite is 4,200 ft² and will have 38 occupants. The building is fully occupied on the other floors. The suite has a new break room sink and microwave.
1. What approvals and submittals are missing, and why can't you accept the handwritten sketch?
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Missing items include an alarm permit, approved shop drawings, as-built drawings, battery calculations, device listing, sequence of operations, and acceptance test records. A handwritten sketch does not show device locations, circuiting, candela or strobe coverage, or voltage drop. Without approved drawings, you cannot verify that the four new smoke detectors and relocated sprinkler heads are correctly spaced and that the alarm system will operate as intended. The tamper and trouble signals are evidence that the system is not normal. Require the contractor to submit a permit application and approved drawings before further inspection.
2. Describe the acceptance test and inspection you would require for the alarm and sprinkler modifications.
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Require a technical acceptance test by the contractor in your presence. For the fire alarm, test each new smoke detector and any affected existing device; test manual pull stations; verify notification appliance audibility and visible coverage; test supervisory signals for sprinkler tamper and flow; verify battery capacity and charger; verify monitoring transmission; and confirm the sequence of operations. For sprinklers, verify head spacing, clearance, and relocation; require a hydrostatic test if the modification meets the threshold; verify pipe sizing and hangers. Require signed test forms and as-builts. Because the panel has a trouble, the test cannot be completed until the missing device is repaired.
3. How do you handle the tamper and trouble signals before issuing occupancy?
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Clear the trouble before occupancy; a trouble signal means a circuit or device is impaired. The tamper is supervisory and must be restored. Require the contractor to repair and then re-test the affected circuit. After repairs, re-inspect and verify the panel is normal, the monitoring company receives signals, and the owner has documentation. If the building is occupied, require a fire watch or other approved mitigation until restoration. Do not issue the certificate of occupancy for the suite based on the handwritten sketch or a verbal assurance. Coordinate with the building official if the owner pressures for occupancy.