Siemens FDBZ492-RP

DescriptionThe 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.