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FORT PIERCE ENGINEERING, INC. IRC Maintenance <br /> 3 . 1 The system shall be equipped with a 4-channel (minimum) Digital Alarm Communicator <br /> Transmitter (DACT) for transmission of fire alarm, supervisory, and trouble signals to the <br /> customary monitoring service utilized by Indian River County. The following signals shall be <br /> reported as applicable: <br /> • Fire Alarm <br /> • Security Alarm <br /> • Carbon Monoxide Alarm <br /> • Fire Alarm System AC Power Trouble (only if 120vac interrupted for 1 -3 hours) <br /> EXCEPTION : Other appropriate means of transmitting fire alarm system signals off-premises <br /> may be permitted to be used, at the discretion of the AHJ who approves the plans . <br /> 3 .2 The precedence of signals transmitted to the Supervising Station shall be as follows: <br /> 1 . Fire Alarm <br /> 2. Carbon Monoxide Alarm <br /> 3 . Security Alarm <br /> 3 . Supervisory Signal <br /> 4. Trouble Signal* <br /> *Loss of AC power to FACU must not be sent transmitted until it has continued for at least 1 <br /> hour but no more than 3 hours. This avoids nuisance transmissions to the supervising station <br /> for brief power outages (switching transients, thunderstorms). <br /> 3 . 3 The Contractor must provide a type of DACT that is compatible with the Indian River County <br /> monitoring service's alarm receiving equipment. He must also program the PROM, connect each <br /> DACT to the telephone line(s) provided to him, and verify proper signal receipt by the monitoring <br /> service. The transmission means shall comply with NFPA 72 (which does not permit VOIP). <br /> 4.0 Smoke Detector Application and Installation • <br /> 4. 1 All spot type and duct smoke detectors shall automatically compensate for detector sensitivity <br /> changes due to ambient conditions and dust build-up within detectors. This feature must be <br /> armed and sensitivities set prior to acceptance of the system. <br /> 4.2 Reserved. <br /> 4 .3 Spot-type detectors must be the plug-in type, with a separate base (not a mounting ring), to <br /> facilitate their replacement and maintenance. The base shall have integral terminal strips for <br /> circuit connections, rather than wire pigtails (see 6. 5 for details). Each detector or detector base <br /> shall incorporate an LED to indicate alarm. <br /> 4.4 Spot-type smoke detectors shall have a built-in locking device to secure the head to the base, for <br /> tamper resistance. For detectors mounted within 12 feet of the floor, activate this lock after the <br /> system has been inspected and given final acceptance. <br /> 4.5 Spot-type smoke detectors shall not be used where ceiling height exceeds 25 feet because it <br /> makes access for maintenance very difficult and could impede response. <br /> 16965 FIRE DETECTION & ALARM SYSTEM Page 5 OF 10 <br />