D900-03-00 1 I56-380-04
V400R (Red), V400B (Beige) Speakers for
Fire Protective Signaling Systems and
Strobes SS12LO, SS24LO, SS24LOC,
SS24M, and SS24MC for these Speakers
INSTALLATION AND MAINTENANCE INSTRUCTIONS
A Division of Pittway
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
General Description
The National Fire Protection Association has published
standards and recommended practices for the installation
and use of the appliances described in these instructions.
System Sensor recommends that the installer become fa-
miliar with these standards and practices, local codes, and
any special requirements of the authority having jurisdic-
tion.
The speaker can operate at any one of four input power lev-
els (1/4, 1/2, 1, or 2 watts) at either of two input voltages
(25V
rms
or 70.7V
rms
). The rms voltage and power levels are
selected at the time of installation, but can be changed, if
necessary.
The speaker is equipped with a capacitive input to allow
for DC supervision.
Optional strobes are available for use with the speaker. Al-
though they are assembled into a unit at the time of instal-
lation, the strobe and speaker are electrically independent
and require separate power sources. Strobes must be pow-
ered by means of an uncoded full-wave rectified, filtered or
unfiltered supply. Model SS12LO is for use with 12 volt
panels and Models SS24LO and SS24M are for 24 volt pan-
els. The strobe CANNOT be supervised when it is attached
to the speaker and is considered a supplementary signaling
device.
Specifications
Voltage Input: 25 V
rms
or 70.7 V
rms
Input Power Taps: 1/4 Watt, 1/2 Watt, 1 Watt, or 2 Watts
Frequency Range: 400 to 4000 Hz
Supervision: Capacitive input for supervisory DC voltage
Grille Size: 4" X 4"
Cone Material: Weather resistant
Mounting: Standard 4" X 4" electrical box
Surface mount directly to box
Semiflush mount, using model MP-SF or MP-SFB (red or beige)
Flush mount, using Model MP-F or MP-FB.
Ceiling mount, using flush mount kit MP-F or MP-FB. Use Models SS24LOC and
SS24MC Strobes (optional) for ceiling-mounted installations.
Input Terminals: 14 to 18 AWG
Operating Temperature Range: 32° to 120°F
Installation
Electrical
Install the electrical wiring in compliance with all appli-
cable local codes as well as any special requirements of the
authority having jurisdiction, using the proper wire size.
1. Connect the speaker and strobe as shown in Figure 1.
Keep in mind that if an optional strobe has been at-
tached to the speaker, the speaker and strobe are electri-
cally independent. The speaker must be connected to a
25V
rms
or 70.7 V
rms
amplifier and the strobe to an
uncoded DC power supply.
Even though V400 series speakers can be used with 25
V
rms
or 70.7 V
rms
amplifiers, permanent damage can result
if the speaker is improperly connected. Therefore, be
sure to use the COM and 25 terminals when a 25 V
rms
amplifier is being used. Similarly, use the COM and 70
terminals if a 70.7 V
rms
amplifier is in the system.
NOTE: Do NOT loop electrical wiring under terminal
screws. Wires connecting the device to the control
panel must be broken at the device terminal con-
nection to ensure electrical supervision.
2. See Figure 1. The speaker is equipped with five posts
and an associated plug with red and black wires. The
center post is labeled COM (common) while the others
are labeled 2W, 1/4W, 1/2W, and 1W, respectively.
These posts enable the installer to select any one of four
power levels by installing the plug onto COM and the ap-
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