System Sensor SpectrAlert SP2C Series Installation And Maintenance Instructions

INSTALLATION AND MAINTENANCE INSTRUCTIONS
SpectrAlert SP2C Series
Ceiling Mount Speaker/Strobes for
Fire Protective Signaling Systems
For use with the following models: SP2C2415, SP2C241575, SP2C2430,
SP2C2475, SP2C2495, SP2C24115, SP2C24177
U.S. Patent Nos. 5,850,178; 5,598,139; 6,049,446; 6,057,778; D424465; 5,931,569; 6,623,143
Specifications:
Mechanical
Input Terminals: 12 to 18 AWG (3.31 to 0.82 mm
Speaker Size: 4 inches (101 mm)
Overall Dimensions: 6.8˝ diameter (173 mm)
Electrical
Maximum Supervisory
Voltage (Speaker): 50 VDC
Operational Humidity Range: 10 – 93% RH (non-condensing)
For Strobes
Voltage: Regulated 24 DC/FWR
Operational Voltage Range: 16–33 Volts
Synchronous Applications
with MDL Module: 17–33 Volts
NOTE: The SP2C Series is suitable for dry and humid environments.
Note for Strobes – Do not exceed: 1) 16-33 Voltage range limit; 2) Maximum number of 70 strobe lights when connecting the MDL
Sync module with a maximum line impedance of 4 Ohms per loop and: 3) Maximum line impedance as required by the fire alarm
control manufacturer.
NOTICE: This manual shall be left with the owner/user of this
equipment.
General Description
The National Fire Protection Association (NFPA) has published
standards and recommended practices for the speaker/strobes
described in this manual. As a result, the installer must be famil-
iar with these requirements as well as all local codes and special
requirements of the authority having jurisdiction.
The SpectrAlert SP2C series ceiling mount speaker/strobe can be
operated with distribution amplifiers having an output voltage of
either 25 volts or 70.7 volts.
The speakers operate at any one of four input power levels. The
output sound level is selected at the time of installation, but can
be changed, if necessary.
The speaker is also equipped with a capacitive input to allow for
DC supervision.
The SpectrAlert SP2C series ceiling mount strobe can be installed
in systems using 24-volt panels having DC or full-wave rectified
(FWR) power supplies. The strobes can also be installed in appli-
cations requiring synchronization (MDL required) or applications
that do not require synchronization (no module required).
The SpectrAlert SP2C series ceiling mount speaker/strobes are
designed to meet the requirements of most agencies governing
these devices, including: NFPA, The National Fire Alarm Code,
UL, CSFM, MEA. Also, check with your local Authority Having
Jurisdiction for other codes or standards that may apply.
D690-02-00
Flash Rate:
2
) Light Output:
Sound Output:
Listings:
Not suitable for use in air handling spaces.
Power Supply Considerations For Strobes
Panels typically supply DC filtered voltage or FWR (full-
wave rectified) voltage. The system design engineer must cal-
culate the number of units used in a zone based on the
type of panel supply. Be certain the sum of all the device currents
do not exceed the current capability of the panel. Calculations are
based on using the device current found in Table 2 and must be
the current specified for the type of panel power supply used.
Wire Sizes
The designer must be sure that the last device on the circuit has
sufficient voltage to operate the device within its rated voltage.
When calculating the voltage available to the last device, it is
necessary to consider the voltage drop due to the resistance of the
wire. The thicker the wire, the less the voltage drop. Generally, for
purposes of determining the wire size necessary for the system,
it is best to consider all of the devices as "lumped" on the end of
the supply circuit (simulates "worst case").
Typical wire size resistance:
18 AWG solid:
16 AWG solid:
14 AWG solid:
12 AWG solid:
Note: If class "A" wiring is installed, the wire length may be up to
4 times the single wire length in this calculation.
1
firealarmresources.com
3825 Ohio Avenue, St. Charles, Illinois 60174
1-800-SENSOR2, FAX: 630-377-6495
www.systemsensor.com
1 Flash Per Second
Models with 15 only in the model number are
listed at 15 candela.
Models with 1575 in the model number are
listed at 15 candela per UL 1971 but will pro-
vide 75 candela on axis (straight down).
Models with 30, 75, 95, 115, 177 are for that
candela.
Sound output levels are
Underwriters Laboratories in their reverberant
room.
Always use the sound output specified as UL
Reverberant Room when comparing products.
UL S5512 Strobe, UL S4048 (Speaker/Strobe)
Approximately 8 ohms/1,000 ft.
Approximately 5 ohms/1,000 ft.
Approximately 3 ohms/1,000 ft.
Approximately 2 ohms/1,000 ft.
established at
I56-1455-009R