Orange County NC Website
Browse       Search
Construction Documents <br />20033 <br />Orange County Europa Center <br />28 4600 - 8 FIRE DETECTION AND ALARM <br />2. The Display shall also provide four Light-Emitting-Diodes (LEDS), that will indicate the <br />status of the following system parameters: AC POWER, SYSTEM ALARM, SYSTEM <br />TROUBLE, and SIGNAL SILENCE. <br />3. The system display shall provide a touch key-pad with control capability to command all <br />system functions, entry of any alphabetic or numeric information, and field programming. <br />Two different password levels shall be accessible through the display interface assembly <br />to prevent unauthorized system control or programming. <br />H. Initiating Devices: <br />1. Addressable Systems: <br />a. Addressable Devices: Individually identifiable by addressable fire alarm control unit. <br />b. Provide suitable addressable interface modules as indicated or as required for <br />connection to conventional (non-addressable) devices and other components that <br />provide a dry closure output. <br />2. Addressable Devices - General: All initiating devices shall be individually addressable. <br />Addressable devices shall comply with the following requirements: <br />a. All addressable spot type and duct smoke detectors shall be the analog type and the <br />alarm system shall automatically compensate for detector sensitivity changes due to <br />ambient conditions and dust build-up within detectors. This feature must be armed <br />and sensitivities set prior to acceptance of the system. <br />b. Address Setting: Addressable devices shall provide an address-setting means. <br />c. Connections: Addressable devices shall be connected to a Signaling Line Circuit <br />(SLC) with two (2) wires. <br />d. Operational Indications: Addressable initiation devices shall provide dual alarm and <br />power LEDs. Both LEDs shall flash under normal conditions, indicating that the device <br />is operational and in regular communication with the control panel. Both LEDs shall <br />be placed into steady illumination by the FACP to indicate that an alarm condition has <br />been detected. The flashing mode operation of the detector LEDs shall be optional <br />through the system field program. An output connection shall also be provided in the <br />device base to connect an external remote alarm LED. <br />e. Intelligent Initiation Devices: All smoke detectors shall be the “intelligent” in that <br />smoke detector sensitivity shall be set through the FACP and shall be adjustable in <br />the field through the field programming of the system. Sensitivity shall be capable of <br />being automatically adjusted by the FACP on a time-of-day basis. Using software in <br />the FACP, detectors shall be capable of automatically compensating for dust <br />accumulation and other slow environmental changes that may affect performance. <br />The detectors shall be listed by UL as meeting the calibrated sensitivity test <br />requirements of NFPA Standard 72. <br />f. Spot-type detectors must be the plug-in type, with a separate base (not a mounting <br />ring), to facilitate their replacement and maintenance. The base shall have integral <br />terminal strips for circuit connections, rather than wire pigtails. Each detector or <br />detector base shall incorporate an LED to indicate alarm. <br />3. Smoke Detectors General Requirements: <br />a. Spot-type detectors must be the plug-in type, with a separate base (not a mounting <br />ring), to facilitate their replacement and maintenance. The base shall have integral <br />terminal strips for circuit connections, rather than wire pigtails. Each detector or <br />detector base shall incorporate an LED to indicate alarm. <br />b. Device mounting Base: Unless otherwise specified all detectors shall be ceiling-mount <br />and shall include a separate twist-lock base with locking tamper proof feature. <br />c. Sounder Base: Where indicated on plans provide bases with a built-in (local) sounder <br />rated at 85 dBA minimum, measured at 10 ft. Configure sounder bases such that <br />sounders are activated under conditions as described in the Matrix. <br />d. Test Means: The detectors shall provide a test means whereby they will simulate an <br />alarm condition and report that condition to the control panel. Such a test may be <br />initiated at the detector itself (by activating a magnetic switch) or initiated remotely on <br />command from the control panel when in the “test” condition. <br />DocuSign Envelope ID: ECCAC5A0-6CC8-4B37-8AD3-89D69F0AE1AE