256918 Rev. K1 0921
Figure 1 Outlet Box Mounting
290A2450-02
NB
Semi-Flush Mounting
Semi-flush wall mounting requires the use of
Federal Signal Model SF Semi-Flush Mounting
Plate accessory. This accessory mounts to a
user-provided two-gang plaster ring attached to a
recessed 4-inch square electrical box. To mount the
horn in this manner:
1. Attach the Semi-Flush Mounting Plate
accessory to plaster ring using the (4) 6-32 by
1/4-inch screws provided.
2. Connect the wires per the Electrical
Connections section below.
3. Mount the horn to the Semi-Flush Mounting
Plate accessory using the two 8-32 by
1-5/8-inch screws provided. Install the two
10-32 by 5/8-inch tapping screws into the
two unused screw openings on the horn. See
Figure 2.
Figure 2 Semi-Flush Mounting
290A2450-04
Flush Mounting
Flush wall mounting requires the use of Federal
Signal Model FB Flush Wall Mount Box and FG Flush
Mount Grille accessories. To flush mount the horn:
1. Mount the Model Flush Wall Mount Box wall
box into the wall with the box edge flush with
the finished wall.
2. Connect the wires per the Electrical
Connections section below.
3. Mount the horn and Flush Mount Grille
accessory to the Flush Wall Mount Box wall
box using the two 8-32 by
1-5/8-inch screws provided.
4. Install the two 10-32 by 5/8-inch tapping
screws into the two unused screw openings
on the horn. See Figure 3.
Figure 3 Flush Mounting
290A2450-08
FB
FG
Weatherproof Box Mounting
Weatherproof surface mounting requires the use of
Federal Signal Model WB Weatherproof Back Box
accessory. To mount the horn in this manner:
1. Mount the Weatherproof Back Box to the
mounting surface using the appropriate user-
supplied hardware.
2. Connect conduit/cabling to the Weatherproof
Back Box box as required.
3. Plug all unused conduit entries with the
provided plugs.
4. Connect the wires per the Electrical
Connections section.
5. Mount the horn to Weatherproof Back Box
box using the two 8-32 by 1-5/8-inch screws
provided.
6. Install the two 10-32 by 5/8-inch tapping
screws into the two unused screw openings
on the horn. See Figure 4.
