3003 W CASINO RD BASE FILE 2023-10-24

Seatronics, Inc. Boeing 787 JV . Aircraft Early Warning Fire Detection Systems Job: 111137 Fire Alarm System Submittal Manual Section 1 VESDA Detector Unit: The VESDA Detector Unit is a NEMA 1 enclosure which contains the VESDA detector and aspirator. This panel is located on the respective aircraft forward tool platform near the aircraft entry point. Air samples drawn into the detector from the air sampling hose network are illuminated within a chamber in the detector by a high intensity laser light source. Particles within the air sampling chamber reflect some of this light to a highly sensitive photocell. The photocell produces a signal which is conditioned and sent to the VESDA Control Panel for processing. VESDA Control Panel: The VESDA Control Panel is NEMA 1 enclosure with hinged locking door and viewing window. This enclosure houses the VESDA Control/Display module, power supply, standby batteries, auxiliary relays and addressable interface modules required to transmit alarm and trouble signals to the Main Fire Alarm Panel. A power shutdown interface relay junction box is mounted directly above the VESDA Control Panel. The power shutdown interface relay is connected to the power shutdown control panel for the position, to provide power shutdown capabilities for the aircraft assembly position. The power shutdown function is activated by the activation of a VESDA High Level Smoke Alarm or manual station. The VESDA Controller module is a microprocessor based control module that monitors, interprets and processes control signals from the VESDA detector. The controller continuously monitors the detector for proper operation (air flow, sensitivity, light source, etc.) and processes the smoke level input signal to display on a bargraph. Three alarm output levels are programmable based on the smoke level reading as well as a time delay for each level before it latches into alarm. The controller is also programmable for day and night sensitivity and alarm levels. The VESDA Controller communicates to the VESDA System Management computer at the Boeing Fire Department Dispatch Office, via a web enable communications interface module in the Vesda Control Panel, to present a real time graphical display of alarm and/or fault conditions. Main Fire Alarm Panel: The Main Fire Alarm Panel (MFAP) is a Siemens model Cerberus Pro Modular microprocessor based fire alarm panel. The panels are located at the south end of each line near the last aircraft position. This panel annunciates and processes alarm and trouble signals from the VESDA Control Panel, Manual Stations and power shutdown Save Switches. A communications loop is run from the MFAP for each line to all of its respective VESDA Control Panels. Addressable interface modules located in the VESDA Control Panel are used to input alarm and trouble signals from the VESDA Control Panel into the MFAP communications loop. It also controls power shutdown functions to each aircraft through an addressable relay module located in the VESDA Control Panel. The MFAP provides connections to JCI for remote trouble and alarm reporting. Seatronics, Inc. PO BOX 1138 Auburn, WA 98001 253-939-6060