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FORT PIERCE ENGINEERING, INC. IRC Maintenance 4.6 Unless suitably protected against dust, paint, etc. , spot type smoke detectors shall not be installed until the final construction clean-up has been completed. In the event of contamination during construction, the detectors must be replaced. CAUTION: Covers supplied with smoke detector heads do not provide protection against heavy construction dust, spray painting, etc., and must not be used for that purpose. They are suitable only during final, minor cleanup or touchup operations. 4. 7 A detector installed where accidental damage or deliberate abuse is expected shall be provided with a guard that is listed for use with it and is acceptable to the AHJ. 4.8 Identification of individual detectors is not required, but each detector location shall be shown on the fire alarm construction plan and as-built drawing. 4.9 All air duct/plenum detectors must have a Remote Alarm Indicator Lamp (RAIL) installed in the nearest corridor or public area and identified by an engraved label affixed to the wall or ceiling. Duct smoke detectors are permitted to be installed only inside an air duct. It is not appropriate to mount them in front of a return air opening. Duct detectors shall also be installed in a manner that provides suitable, convenient access for required periodic cleaning and calibration (see 4. 11 ) . 4. 10 Duct detector sampling tubes shall extend the full width of the duct and shall extend through the far side of the duct. An appropriate and durable air-tight seal shall be made around the tube where it penetrates the duct wall. The end of the tube shall be plugged with a rubber stopper. This facilitates visual inspection, intake tube cleaning, and injection of smoke or equivalent aerosol for testing the detector. 4. 11 Each duct detector installation shall be accessible for sampling tube inspection and cleaning. Indicate airflow direction on the duct, adjacent to the detector, using stencil or permanent decal . 4. 12 Install smoke detectors in interior exit access corridors, M/E rooms, computer rooms, unsprinklered storage rooms, and customarily unoccupied rooms or spaces containing flammable materials. 5.0 Reserved. 6.0 System Conflguration and Installation 6. 1 Reserved. 6. 2 Reserved. 6.3 All fire alarm system wiring shall be in '/, inch or larger diameter metal conduit, surface metal raceway, or (in finished areas only, for improved appearance) surface non-metallic raceway. PVC conduit is permitted to be used underground, in concrete, and in locations subject to severe corrosion. 6 .4 All conduits that penetrate outside walls from air conditioned space must have internal sealing 16965 FIRE DETECTION & ALARM SYSTEM Page 6 OF 10