System Sensor SPRLA Installation And Maintenance Instructions page 2

SHORTING SPRING FEATURE
System Sensor notification appliances come with a shorting spring that is
provided between terminals 2 and 3 of the mounting plate to enable system
continuity checks after the system has been wired, but prior to installation
of the final product. (See Figure 3.) This spring will automatically disengage
when the product is installed, to enable supervision of the final system.
FIGURE 3. SHORTING SPRING
AVAILABLE POWER SETTINGS
System Sensor offers a wide range of power settings for your life safety
needs, including ¼, ½, 1, and 2W.
Sound levels data per UL can be found in Table 1. Directional characteristics
can be found in Table 2.
TABLE 1. SOUND LEVELS FOR EACH TRANSFORMER POWER
SETTING
Setting
¼ W
½ W
1 W
2 W
Signal levels exceeding 130% rated signal voltage can damage the speaker.
Consequently, an incorrect tap connection may cause speaker damage. This
means that if a 25V tap is selected when a 70.7V amplifier is being used,
speaker damage may result. Therefore, be sure to select the proper taps for
the amplifier voltage/input power level combination being used.
TABLE 2 DIRECTIONAL CHARACTERISTICS
Angle (degrees)
70°
90°
UL Anechoic
(dBA @10 ft)
79
82
85
88
CAUTION
Decibels
-3dB
-6dB
MOUNTING
1. Attach mounting plate to junction box. The mounting plate is compatible
with 4" x 4" x 2 / " or deeper junction boxes. (See Figures 4 and 5.)
1
8
FIGURE 4. WALL SPEAKER
A0499-00
FIGURE 5. CEILING SPEAKER
A0501-00
1. Connect field wiring to terminals, as shown in Figure 1.
2. If the product is not to be installed at this point, use the protective dust
cover to prevent contamination of the wiring terminals on the mounting plate.
3. To attach product to mounting plate, remove the protective dust cover, hook
tabs on the top of the product housing into the grooves on mounting plate.
4. Then, hinge the product into position to engage the pins on the product
with the terminals on the mounting plate. Make sure that the tabs on the back
of the product housing fully engage with the mounting plate.
5. Secure product by tightening the single mounting screw in the front of the
product housing.
The "hold in place" snaps are not intended to secure the product to the back
box. The product must be secured to the back box using the screws provided.
Factory finish should not be altered: Do not paint!
Do not over tighten mounting plate screws; this may cause mounting plate
to flex.
2
CAUTION
CAUTION
CAUTION
I56-3577-000
A0500-00