The recall involves G-series Fire Alarm Control Panels that are professionally installed and have model numbers that end in GV4 and use D192G Notification Appliance Circuit (NAC) modules. The NAC module monitors the circuit connections and signals when alarms are not operational. The Bosch name, logo and model number D9412GV4, D7412GV4 or D7212GV4 are on the board of recalled GV4 fire alarm control panels. The control panels and modules are used in residences and commercial facilities and can be mounted inside a variety of enclosures with a minimum size of 16 inches x 16 inches x 3.5 inches, which may or may not be labeled with the Bosch name or logo.
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