3003 W CASINO RD BLDG 45-312 2024-12-06

Product Overview — (continued) Model 87201 DPU operates on AC power or rechargeable batteries, providing flexibility and convenience in programming and testing equipment from practically any location. Model OP921 is a plug-in, two -wire and addressable photoelectric smoke detector. Model OP921 is® Underwriters' Laboratories Listed [OUL268A Listed for direct in -air duct usage]. Each detector consists of a dust -resistant photoelectric chamber and microprocessor -based electronics with a low -profile plastic housing. Every Model OP921 fire detector is shipped with a protective dust cover: 1. Dust cover 2. Smoke detector Operation Model OP921 is a wide -spectrum, photoelectric smoke detector incorporating an infrared light -emitting diode (IRLED), and infrared light -sensing photodiode. Under normal conditions, light transmitted by the LED is directed away from the photodiode and scattered through the smoke chamber in a controlled pattern. The smoke chamber is designed to manage light dissipation and extraneous reflections from dust particles or other non -smoke, airborne contaminants in such a way as to maintain stable, consistent detector operation. When smoke enters the detector chamber, light emitted from the IRLED is scattered by the smoke particles, and is received by the photodiode: 1. Labyrinth 2. Optical transmitter 3. Optical receiver Sensitivity Settings Application Parameter Sets Model OP921 provides four (4) pre-programmed sensitivity parameter sets that can be selected by the FACP to match the expected application or environmental conditions: • Sensitive • Standard • Robust • Air -duct Sensitive: This application parameter set is practically suitable for areas where few misleading sources of false 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 environmental conditions.) Standard: This application parameter set is practically apt for normal office, hotel -lobby -type applications, and is the default setting. 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. Air -Duct: This application parameter set is used when the detector is used a oUL268A (DI) compliant direct in - air duct application without a duct housing. Model OP921 does not require a field sensitivity test. Model OP921 is®UL Listed as a self -testing device and complies with NFPA 72 as a self monitoring detector and control panel arrangement. This parameter set is also used when Model OP921 is used in air -duct housings (Models FDBZ492 and FDBZ492-HR). The visible LED flashes green every 10 seconds to indicate communication with the FACP, and to notify Model OP921 has passed its self -test. Should Model OP921 sense a fault or failure within its system, the LED will flash amber, and the detector will transmit the data to the FACP. 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. Model OP921 contains a tri-color LED indicator, capable of flashing any one (1) of three (3) distinct colors: green, or red. During each flash interval, the microprocessor -based detector monitors the following: SIEMENS Industry, Inc. Building Technologies Division CerberusTM PRO