System Sensor PC4RLA Installation And Maintenance Instructions

INSTALLATION AND MAINTENANCE INSTRUCTIONS
Selectable Output
Four-wire Horn Strobes – Ceiling Mount
For use with the following models:
Ceiling Mount Horn Strobes: PC4RLA and PC4WLA. Add suffix "-E" for English, "-F" for French.
PRODUCT SPECIFICATIONS
Standard Operating Temperature:
Humidity Range:
Strobe Flash Rate
Nominal Voltage:
Operating Voltage Range:
Operating Voltage with MDL3 Sync Module:
Input terminal wire gauge:
DIMENSIONS FOR PRODUCTS AND ACCESSORIES
CEILING PRODUCTS
Horn Strobe
Horn Strobe with SBBCRL/WL Surface Mount
Back Box
NOTICE: This manual shall be left with the owner/user of this equipment.

BEFORE INSTALLING

Please read the System Sensor Audible Visible Application Reference Guide,
which provides detailed information on notification devices, wiring and
special applications. Copies of this manual are available from System Sensor.
CAN/ULC S524 guidelines should be observed.
Important: The notification appliance used must be tested and maintained
following CAN/ULC S536 requirements.

GENERAL DESCRIPTION

System Sensor series of notification appliances offer a wide range of audible
and visible devices for life safety notification. Our 4-wire horn strobes come
with 10 field selectable tone and volume combinations and 7 field selectable
candela settings. Intended for indoor applications and approved for ceiling
mount installations.
The horn is listed to CAN/ULC S525 and the strobe is listed to CAN/ULC S526.
System Sensor strobes are designed to be used in 12 VDC, 24VDC, or 24V FWR
(full wave rectified) systems. System Sensor AV devices can be activated by a
compatible fire alarm control panel or power supply. Refer to the appropriate
fire alarm control panel manufacturer or power supply for more information.
System Sensor ceiling 4-wire horn strobes are electrically backward compat-
ible with the previous generation, since 1996, of notification appliances. They
come enabled with System Sensor synchronization protocol which requires
connections to a power supply capable of generating the System Sensor syn-
chronization pulses, a FACP NAC output configured to System Sensor synchro-
nization protocol, or the use of MDL3 module to generate the synchronization
protocol.

FIRE ALARM SYSTEM CONSIDERATIONS

The National Building Code of Canada requires that all notification appli-
ances, used for building evacuation produce temporal coded signals. Signals
other than those used for evacuation purposes do not have to produce the
temporal coded signal. System Sensor recommends spacing notification appli-
ances in compliance with CAN/ULC S524.

SYSTEM DESIGN

The system designer must make sure that the total current draw by the devices
on the loop does not exceed the current capability of the panel supply, and
that the last device on the circuit is operated within its rated voltage. The
32°F to 120°F (0°C to 49°C)
10 to 93% Non-condensing
1 flash per second
Regulated 12VDC or regulated 24DC/FWR
8 to 17.5V (12V nominal) or 16 to 33V (24V nominal)
8.5 to 17.5V (12V nominal) or 16.5 to 33V (24V nominal)
12 to 18 AWG
Diameter Depth
6.83" 2.47"
(173.5mm) (62.7mm)
6.92" 2.50"
(175.8mm) (63.5mm)
current draw information for making these calculations can be found in the
tables within the manual. For convenience and accuracy, use the voltage drop
calculator on the System Sensor website (www.systemsensor.com).
When calculating the voltage available to the last device, it is necessary to
consider the voltage due to the resistance of the wire. The thicker the wire, the
smaller the voltage drop. Wire resistance tables can be obtained from electri-
cal handbooks. Note that if Class A wiring is installed, the wire length may
be up to twice as long as it would be for circuits that are not fault tolerant.
The total number of strobes on a single NAC must not exceed 69 for 24 volt
applications.

AVAILABLE TONES

System Sensor offers a wide variety of tones for your life safety needs, includ-
ing temporal 3 pattern (½ second on, ½ second off, ½ second on, ½ second
off, ½ second on, 1½ off and repeat) which is specified by ANSI and National
Building Code of Canada for standard emergency evacuation signaling.
To select the tone, turn the rotary switch on the back of the product to the
desired setting. (See Figure 1.)
Available horn settings can be found in Table 1.
NOTE: The standard mini-horn sound is 3.1 kHz. The legacy sound of the
SpectrAlert Advance line is EM (Electro-mechanical): this hops frequencies
between 2Hz and 4Hz. For EM Coded positions, temporal coding must be
provided by the NAC. If the NAC voltage is held constant, the horn output will
remain constantly on.
FIGURE 1. AUDIO SELECTOR
1
6335 Edwards Blvd. Mississauga, ON L5T 2W7
800/736-7672, FAX: 905-812-0771
MOUNTING BOX OPTIONS
4-wire Indoor Products
4" x 4" x 1½", Double Gang,
4" Octagon, SBBCRL/WL (ceiling)
www.systemsensor.ca
A0473-00
I56-9110-001
12/13/2018