Description
The Model 1551F dual-chamber ionization intelligent sensors utilize a state-of-the-art, unipolar sensing chamber. This sensor is designed to provide open area protection and is intended for use with compatible control panels only. Model 1551F is suitable for use with panel Model IRC3 series, zone card ZAS series with a maximum number of detectors per loop of 99: See the IRC3 technical manual, issued 11-88, for installation and wiring diagrams (For installation in Canada, refer to CAN/ ULC-S524-M86, Standard for the Installation of Fire Alarm Systems and CEC Part 1, Sec 32).