Status indicators give information about <br />whether the main fire alarm power is on, or they <br />report on the condition of devices external to the <br />alarm system. <br />Examples of Status Indicators: <br />■ Main system power on <br />■ Main system trouble <br />■ Fire pump running <br />■ Fire pump fault, <br />■ Fire pump phase reversal <br />■ Generator run <br />■ Generator fault <br />■ Stair doors unlocked <br />■ Smoke control system in operation <br />Controls are switches that control features exter- <br />nal to the fire alarm system. <br />Examples of Control Switches: <br />■ Remote fire pump start <br />■ Remote generator start <br />■ Smoke control manual switches <br />■ Stair unlocking switches <br />Considerations - Zoning and Annunciation <br />■ Provide separate panel for each building <br />served. <br />■ Locate for rapid fire department access near <br />the primary entrance or in the fire command <br />center. <br />■ Include basic information: Floor, zone, <br />device type (alarm or supervisory). <br />■ Meet zone size limitations. <br />■ Arrange devices subject to unwanted alarms <br />as supervisory. <br />■ Indicate area covered by sprinkler systems, <br />not location of switches. <br />■ Include status indicators for power and <br />external devices. <br />■ Include control switches for other fire pro- <br />tection features. <br />GRAPHIC DISPLAYS <br />If an annunciator shows any location-related infor- <br />mation that is not obvious, a graphic diagram should <br />be provided. Examples are zone boundaries, room <br />names, or room numbers. Diagrams enable fire- <br />fighters to determine where to investigate alarms <br />originating in locations with designations such as <br />"Zone 2 East, " "Suite 121, " or "Main Electric <br />Room. " <br />The graphic display may be a separate, printed <br />diagram mounted on the wall adjacent to the <br />annunciator. Or, it may be integrated with the <br />annunciator, in which case it is called a "graphic <br />annunciator. " Some jurisdictions may require <br />graphic annunciators. <br />The design of the diagram is very important in <br />enabling firefighters to rapidly obtain needed infor- <br />mation. Fire departments may have regulations or <br />policies outlining their requirements or preferences. <br />Some code officials require annunciators through- <br />out their jurisdiction to have standardized features. <br />Orientation of the diagram will be important in <br />aiding firefighters to visually process the informa- <br />tion it contains. The farthest point of the building <br />beyond the annunciator's location should be at the <br />top of the diagram. <br />Designers should begin with the building's <br />outline in creating diagrams. Zones would be <br />identified by the boundary lines between them. <br />Likewise, for alarms designated by room, suite, or <br />tenant, these locations should be shown. A "You <br />Are Here" indicator shows the viewers where they <br />are in the building. <br />NFPA 13 permits most sprinkler zones to cover <br />as much as 52,000 square feet. Therefore, multiple <br />alarm zones may cover one sprinkler zone. If there <br />is one sprinkler zone on a floor and multiple alarm <br />zones, lamp or LED annunciators should report <br />only the floor and device type. An alarm from <br />another device type will light the appropriate zone <br />lamp. If there are multiple sprinkler zones per floor, <br />and sprinkler and alarm zone boundaries are not <br />coordinated, separate diagrams can show each. <br />'F'IRE .SERVICE FEATURES, OT BUILDIWGS AND FIRE,PWOTECTIO,N' S`V'.ST,EfMS 53 <br />169 <br />• <br />