The Acceptance Test That Was Not an Acceptance Test
Final inspection of a new four-story, 120-room hotel (Group R-1) is set for a Friday, with the certificate of occupancy scheduled for the following Wednesday. The fire alarm acceptance test is the last item. The inspector observes and times the following. A manual pull station at the third-floor elevator lobby does not produce a general alarm until 3 minutes 10 seconds later, because the contractor left the panel's positive alarm sequence enabled for the entire system. Sound pressure measured with the guest room door closed is 62 dBA at the pillow and 78 dBA in the corridor. Standing at the panel, only 12 of the 118 initiating devices have been tested; the technician offers the manufacturer's factory certification for the remainder and says 'they are addressable, the panel would tell us.' The two elevator lobby smoke detectors were not tested because the elevator is not yet energized. The duct detector on the corridor HVAC unit performed correctly, and all notification appliance circuits operate.
1. Evaluate the 3-minute-10-second delay on the manual pull station. Is it acceptable, and what instruction do you give?
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No. The delay is a programming error, and the panel's factory defaults are not a defense.
A positive alarm sequence is a narrow tool. It permits a short delay before general alarm so that staff can investigate, and it applies to automatic detection only. It may not be applied to manual pull stations or to sprinkler waterflow, because those signals are already the product of a human decision or of fire. Even where PAS is properly used, it carries conditions: the signal must be acknowledged at a constantly attended location within a specified time, the total delay before general alarm is bounded (commonly 180 seconds), and an unacknowledged signal must automatically escalate to general alarm.
Here the sequence is enabled globally, so a person pulling a station in a lobby gets three minutes of delay - the opposite of what PAS is for - and there will be no constantly attended panel until the front desk is staffed.
Instruction: reprogram so that manual stations and waterflow bypass PAS entirely, and disable PAS unless the owner documents a staffed, trained, attended location and accepts the acknowledgment obligations in writing. Then retest and independently time every manual station. Do not accept a written explanation in place of a retest; the timing you measured is the test result, and three minutes on the record is a deficiency.
2. Assess the audibility results and explain the remedy and verification the contractor must provide.
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The measurement was taken in the wrong place, and where it was taken it fails.
For a hotel guest room, the criterion is not the corridor. It is the sound level at the pillow, in the sleeping room, with the door closed, sufficient to rouse an occupant - commonly 75 dBA at the pillow, and in any case not less than the general rule of 15 dBA above ambient where that yields the higher number. The 78 dBA corridor reading is irrelevant because the corridor is not where the sleeping occupant is, and the door and wall assembly will attenuate the signal.
Why it matters here: in-room notification is the primary alarm for a sleeping occupant of an R-1 occupancy, and 62 dBA may sit below the ambient sound of the room's own fan-coil unit, which should also be recorded.
Remedies available to the contractor: add listed sounder bases or in-room audible appliances, rebalance notification appliance circuit loading with a voltage-drop calculation, or both. Verification must be room by room - worst cases are rooms farthest from the circuit source and rooms adjacent to mechanical equipment - not a sample in the room nearest the riser. Record the sound level meter's calibration date and the ambient reading alongside each result, because both get challenged in the appeal.
3. What is your recommendation on the certificate of occupancy, and how do you handle the 12-of-118 testing and the untested elevator lobby detectors?
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The certificate of occupancy decision belongs to the building official, but the inspector's report drives it. Three deficiencies make sign-off impossible: the PAS delay on manual stations, failed in-room audibility, and an incomplete acceptance test.
On completeness: an initial acceptance test verifies the installation, so every initiating device, every notification circuit, and every interface is tested and recorded. Factory certification proves a device works on a bench; it does not prove the device was installed in the right location, addressed correctly, wired to the right circuit, or that the panel's program maps it to the correct outputs. Twelve of 118 is a spot check, not an acceptance test. The elevator lobby detectors must be tested with the elevator energized, because recall is the function being verified; deferring them leaves the test incomplete rather than passed.
Report: issue a written deficiency list with a defined retest scope, and recommend that occupancy not be authorized until the alarm deficiencies are corrected - or, if the building must be occupied, that documented interim measures such as a fire watch or a temporary monitored detection arrangement be imposed with a firm correction date. Record the duct detector pass and the functioning notification circuits so the owner receives credit for what did pass and the retest can be tightly scoped.