System Sensor SP2R1224MC and SP2W1224MC - Manual (Page 3)

Flush mount back box
The speaker/strobe can be flush mounted on a 4˝Ч4˝Ч
2
1 /
8
˝ back box (Fig. 5) as follows:
A. Select the appropriate pair of diagonally opposite mount-
ing holes in the speaker grille that will be used to attach
the speaker/strobe to the back box. Do not insert any
mounting screws at this point.
B. Use two 8-32 × 1 3 /
4
˝ pan head screws to attach the
speaker to the back box.
C. Plug the remaining two holes that will not be used for
attachment with the plugs provided.
NOTE: Two drywall screws (provided) may be used to
fasten the mounting plate to the wall. To use the drywall
screws, it will be necessary to first remove the strobe
and hinge the strobe module away from the mounting
plate (Fig. 7).
Figure 4: Reversible strobe module
Figure 5: Flush mount back box
4-INCH BACK BOX
Figure 6. Removal of strobes from mounting plates
To remove units from mounting plates, insert Quick Click
Removal Tool as shown to unlock snap. While pushing in
Removal Tool to release the snap, pull back on the strobe.
Hinge the strobe module, disengage the Locking Rib, and
lift the strobe away from the mounting plate.
SNAP LEVER
LOCKING RIB LOCKING RIB SLOT
INSERT REMOVAL TOOL
Viewing Window
D900-29-00 3 I56-1809-009R
A0105-01
A0133-00
A0106-00
Candela Selections:
Figure 3. For strobe candela selections, adjust slide
switch located on the rear of the product while watch-
ing the viewing window on the side of the reflector.
NOTE: SpectrAlert Selectable Output strobes, set at 15
and 15/75cd, automatically work on both 12V and 24V
power supplies.
NOTE: The strobe is not listed for 12V operating voltages
when set to 30, 75 or 110 candela. Use only those settings
marked as OK in this chart:
Permissible Candela Settings:
Candela
Setting
Operating Voltage
12V 24V
15 OK OK
15/75 OK OK
30 OK
75 OK
110 OK
WARNING
When using a 12V panel, this device will yield required
light output only in the 15 or 15/75 candela setting.
Mounting
Reversible strobe module
Should the back box be located near an obstruction such as
a doorway, the strobe module is field-reversible (Fig. 4).
To reverse the strobe module: first remove the strobe from
the mounting plate (Fig. 6). Turn the module so that it is
upside down from its original position, re-insert the mod-
ule into the mounting plate (be sure to insert the Locking
Tab into the slot), and press the module into the mounting
plate. The strobe module will make a “click” when it has
locked into place. Turn the entire assembly so that the word
“FIRE” is right side up. The unit can now be mounted.
A0100-00