Alarm Horn: Service and Repair

Removing And Installing The Alarm Siren

Preliminary work
1. Release the relay carrier in the plenum chamber E-box and lay it aside.

Removing the alarm siren







1. Unscrew fastening screw -arrow 1- and pull the horn aside and upwards -arrow-.







2. Release the plug -arrows A- and pull it off -arrow B-.







Installing the alarm siren
1. Connect the plug to the horn -arrow A- until the lock -B- clicks into place.







2. Tightly screw the horn to the holder using the fastening screw -1-. Tightening torque: 17 ftlb.







Subsequent work
1. Install the relay carrier in the plenum chamber E-box.