Siemens FDBZ492-RP

The Siemens ─ Fire Safety Model ‘FDBZ’-series of air-duct-detector housings are designed for use with Siemens Model ‘H’-series, ‘FD’-series and Model OP121 detectors. (see: Details for Ordering for a complete list of compatible devices). Designed for installation directly to heating, ventilating and air-conditioning (HVAC) duct systems, the Model ‘FDBZ’-series of duct housings complies with National Fire Protection Association Standard (NFPA) No.’s 72 and 90A, and is Underwriters’ Laboratories Listed. When equipped, the air-duct detector housing will signal the presence of smoke being carried through the duct system. Air-duct detectors are not intended to be substituted for open-area detection.