System Sensor SPRLA Installation And Maintenance Instructions page 3

TAMPER SCREW
For tamper resistance, the standard captive screw may be replaced with the
enclosed Torx screw.
1. To remove the captive screw, back out the screw and apply pressure to
the back until it disengages from the housing. Replace with the supplied Torx
screw. (See Figure 6.)
FIGURE 6. TAMPER SCREW
NOTE: Wall speaker shown in this example.
SURFACE MOUNT BACK BOX MOUNTING
1. The surface mount back box may be secured directly to the wall or ceiling. A
grounding bracket with ground screw capability is provided if needed. For wall
see Figure 7, and for ceiling see Figure 8.
FIGURE 7. WALL SURFACE MOUNT BACK BOX
FIGURE 8. CEILING SURFACE MOUNT BACK BOX
2. The wall mount box must be mounted with the up arrow pointing up. (See
Figure 9.)
FIGURE 9. SMBB UP ARROW
NOTE: Ceiling Surface Mount Back Box, SBBCRL/CWL is a common back
box for ceiling horn strobes, strobes and ceiling speakers and speaker
strobes. Use the top mounting holes for ceiling speaker and speaker strobe
products. (See Figure 10.)
FIGURE 10. CEILING SURFACE MOUNT BACK BOX MOUNTING
KEY HOLE PATTERN
A0502-00
3. Threaded knockout holes are provided for the sides of the box for ¾ inch
conduit adapter. Knockout holes in the back of the box can be used for ¾
inch rear entry.
4. To remove the ¾ inch knockout, we recommend you use a flat head screw-
driver, place the blade of the flat head screwdriver in the inner edge of the
knockout. Strike the screwdriver as you work your way around as shown in
Figure 11.
5. V500 and V700 raceway knockouts are also provided. Use V500 for low
profile applications and V700 for high profile applications.
6. To remove the knockout turn pliers up, as shown in Figure 12.
FIGURE 11 AND 12. KNOCKOUT REMOVAL FOR SURFACE MOUNT
BACK BOX AND WIRE MOLD REMOVAL
A0503-00
A0482-00
NOTE: Use caution not to strike the knockout near the top edge of the wall
version of the surface mount back box.
A0504-00
3
Wire Mold Removal
¾ inch
A0481-00
A0505-00
A0466-01
I56-3577-000