3003 W CASINO RD BLDG 45-715 2024-12-05

Product Overview — (continued) Sensitivity Settings Model 87201 DPU operates on AC power or rechargeable Application Parameter Sets batteries,providing flexibility and convenience in programming Model OP921 provides four(4)pre-programmed sensitivity and testing equipment from practically any location. parameter sets that can be selected by the FACP to match the Model OP921 is a plug-in,two-wire and addressable photoelectric expected application or environmental conditions: smoke detector. Model OP921 is®Underwriters'Laboratories • Sensitive Listed[OUL268A Listed for direct in-air duct usage]. • Standard • Robust Each detector consists of a dust-resistant photoelectric chamber • Air-duct and microprocessor-based electronics with a low-profile plastic Sensitive: This application parameter set is practically housing. Every Model OP921 fire detector is shipped with a suitable for areas where few misleading sources of false protective dust cover: alarm are present, and is appropriate where priority is given to detecting open fires as soon as possible(e.g.— typically a clean application with controlled 1 environmental conditions.) Standard: This application parameter set is practically apt for normal office, hotel-lobby-type applications, and is the default setting. 2 Robust: This application parameter set offers improved resistance to false alarms in areas where misleading sources, such as cigarette smoke or exhaust fumes, may cause a nuisance alarm. 1. Dustcover Air-Duct: This application parameter set is used when 2. Smoke detector the detector is used a oUL268A (DI) compliant direct in- air duct application without a duct housing. Operation Model OP921 does not require a field sensitivity test. Model OP921 is a wide-spectrum,photoelectric smoke detector Model OP921 is®UL Listed as a self-testing device and incorporating an infrared light-emitting diode(IRLED),and complies with NFPA 72 as a self monitoring detector infrared light-sensing photodiode. Under normal conditions,light and control panel arrangement. This parameter set is transmitted by the LED is directed away from the photodiode and also used when Model OP921 is used in air-duct scattered through the smoke chamber in a controlled pattern. housings (Models FDBZ492 and FDBZ492-HR). The visible LED flashes green every 10 seconds to The smoke chamber is designed to manage light dissipation and indicate communication with the FACP, and to notify extraneous reflections from dust particles or other non-smoke, Model OP921 has passed its self-test. Should Model airborne contaminants in such a way as to maintain stable, OP921 sense a fault or failure within its system, the LED consistent detector operation. When smoke enters the detector will flash amber, and the detector will transmit the data chamber,light emitted from the IRLED is scattered by the smoke to the FACP. particles,and is received bythe photodiode: A quick visual inspection is sufficient to indicate the —__ condition of Model OP921 at any time. If more detailed information is required, a printed report can be provided from the compatible FACP, indicating the status and settings assigned to each individual detector. When Model OP921 moves to Alorm mode, the detector will flash red and continue flashing until the system is = (� reset at the FACP. At that same time, any user-defined, system-alarm functions programmed into the system are activated. 1. Labyrinth Model OP921 contains a tri-color LED indicator, capable 2. Optical transmitter of flashing any one (1) of three (3) distinct colors: 3. Optical receiver green, or red. During each flash interval, the microprocessor-based detector monitors the following: SIEMENS Industry, Inc. CerberusTM PRO Building Technologies Division