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Operation — �continued) <br /> • smoke sensitivity is within the range Model OP921 can be applied within the maximum 30-feet <br /> indicated on the nameplate label center spacing(900 sq_ft_areas),as referenced in NFPA 72. <br /> • smoke in its sensing chamber This application guideline is based on ideal conditions— <br /> • Internaf sensors and electronics are functional specifiCally,smooth ceiling surfaCes,minimal air <br /> Based on the monitoring results, the LED indicator movement,and no physical obstructions between potential <br /> flashes the foUowing colors based on the fo{lowing fire sources and the actual detector. Do not mount <br /> conditions: detectors in close proximity to ventilation or heating and air <br /> ' Flash conditioning outlets. Exposed joints or beamed ceilings : <br /> 1. ��Flash�� � � � � � may also affect safe spacing limitations for detectors. � <br /> � ����Color' � Co�diti�on � In�ter�al � � <br /> (in seconds) Should questions arise regarding detector placement, <br /> Normal supervisory operation. observe NFPA 72 guidelines. Good fire-protection system <br /> Green*:' Smoke sensitivity is within rated �o engineering and common sense dictate how and when <br /> limits. fire detectors are installed and used. Contact your local <br /> Detector is in trouble and needs Siemens Industry—Fire Safety distributor or sales office <br /> Yellow: replacement. 4 whenever you need assistance applying Model OP921 in <br /> Alarm condition. � unusual applications. Be sure to follow NFPA guidelines <br /> and�UL Listed/�ULC Pending installation instructions— <br /> No Flash: �etector is not powered. -- included with every Siemens—Fire Safety detector—and <br /> * �Eo�an be c�rned oFF. local codes as for al!fire-protection equipment. <br /> Please tollow the corresponding description of the panel used. <br /> A quick,visual inspedion is sufficient to indicate the condition of Technical Data <br /> the detector at any time. If more detailed information is required, Operati ng <br /> a printed reportcan be provided from the Model FC9-series FACPs Temperature +32�F (O�C) to 120°F (49°C) <br /> indicating the status and settings assigned to each individuaf Range: <br /> detector. <br /> IriSt111atlOri Relative Humidity: 0—95%; non-condensing <br /> All Model OP921 detectors use a surface-mounting base,Model Air Pressure: No effect <br /> DB-11 or Model DB-11 E,which mounts on a 4inch octagonal, <br /> square or single-gang electrical box. The base utilizes screw-clamp Air Velocity: 0—4,000 ft. I min (0-20m ! sec) <br /> contacts for electrical connections and self-wiping contacts for Input Voltage Range: 16VDC—30VDC <br /> increased reliability. <br /> The Model DB-11 base can be used with the optional Model LK 11 Alarm Current(max.): 410NA <br /> detector locking kit,which contains 50 detector locks and an Standby Current(max.): 250NA, max. (average) <br /> installation tool to prevent unauthorized removal of the detector <br /> head. Model DB-11 hasdecorativeplugstocovertheouter- Maximum Spacing: 30-foot centers(900 sq.ft.), <br /> mounting screw holes. per NFPA 72 <br /> Model OP921 may be installed on the same initiating circuit <br /> with the Siemens Model'H'series detectors[when used with Detector Weight: <br /> the Model FC9-series of FACPs]— 0.317 Ibs. <br /> • Model HFP-11 (0.144 kg.) <br /> • Model'HMS'-series manual stations MeChaniCal ProteCtion Guard• <br /> • Model'HTRI'-series interfaces �UL Listed 1�11LC Pending • <br /> • Model HCP output-control devices <br /> • Model'HZM'-series of addressable, with STI Guard Mode{ STI-9604 <br /> conventional zone modufes <br /> Application Data <br /> Installation of Model OP921 detectors requires a two-wire <br /> circuit. In many retrofit cases,existing wiring may be used. <br /> T-tapping'is permitted only for Style 4(Class B)wiring. <br /> Model OP921 is polarity insensitive,which can greatly reduce <br /> installation and debugging time. <br /> SIEMENS Industry, Inc. CerberusT"" PRO <br /> Building Technologies Division <br />