INSTALLATION AND MAINTENANCE INSTRUCTIONS
Selectable Output Chimes and Chime/Strobes
3825 Ohio Avenue, St. Charles, Illinois 60174
800/736-7672, FAX: 630/377-6495
www.systemsensor.com
D690-04-00 1
I56-2783-001R
For use with the following models: CHSR, CHSW, CHR, CHW.
Specifications
General Specifications
Standard Operating Temperature:
32°F to 120°F (0°C to 49°C)
Humidity Range:
10 to 93% non-condensing
Strobe Flash Rate:
1 flash per second
Nominal Voltage:
Regulated 12DC/FWR or regulated 24DC/FWR
1
Operating Voltage Range:
8 to 17.5 V (12V nominal) or 16 to 33 V (24 nominal)
Operating Voltage with MDL:
9 to 17.5 V (12V nominal) or 17 to 33 V (24 V nominal)
1
CHS
products will operate at 12 V nominal only for 15 & 15/75 cd.
Mechanical Specifications
Input terminal wire gauge:
12 to 18 AWG
Chime/strobe dimensions (including lens):
5.6˝L×4.7˝W×2.5˝D (142 mm L×119 mm W×64 mm D)
Chime dimensions:
5.6˝L×4.7˝W×1.3˝D (142 mm L×119 mm W×33 mm D)
The products in this manual may be covered by one or more of the following patents: 5,593,569; 5,914,665; 5,850,178; 5,598,139; 6,049,446; 6,127,935; 6,133,843;
6,661,337; 6,833,783; 6,856,241; 6,822,400; 6,522,261.
General Description
Chimes and chime/strobes are private mode notification
appliances used to alert trained personnel to investigate
possible emergency situations and take appropriate action.
SpectrAlert Advance chimes and chime/strobes are electri-
cally backward compatible with the previous generation of
notification appliances. While they are specifically designed
for use on the wall, the products are listed to be used on
the wall or ceiling. SpectrAlert products are designed to be
used in either 12 or 24 volt DC or full wave rectified (FWR)
systems. If required, the MDL module may be used in order
to provide synchronization.
NOTICE:
This manual shall be left with the owner/user of
this equipment.
Fire Alarm System Considerations
The National Fire Alarm Code, NFPA 72, requires that all
horns, used for building evacuation installed after July 1,
1996, produce temporal coded signals. Signals other than
those used for evacuation purposes do not have to produce
the temporal coded signal.
Power Supply Considerations
Panels typically supply DC filtered voltage or FWR (full
wave rectified) voltage. The system design engineer must
calculate the number of units used on a loop based on the
type of panel supply. Be certain the sum of all the device
currents does not exceed the current capability of the panel.
Calculations are based on using the device current found
in the subsequent charts and must be compatible with the
current specified for the panel or power supply used.
NOTE:
SpectrAlert chimes and chime/strobes must be pow-
ered from a non-coded power supply.
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 smaller
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
to simulate worst case. For the most accurate voltage drop
calculations use the System Sensor voltage drop calculator
available on the web or CD-ROM.
Approximate wire resistance:
18 AWG solid: 8 ohms/1000 ft.
16 AWG solid: 5 ohms/1000 ft.
14 AWG solid: 3 ohms/1000 ft.
12 AWG solid: 2 ohms/1000 ft.
NOTE:
If Class A wiring is installed, the wire length may be
up to twice as long as on non-fault tolerant circuits.
Candela Selection for CHS series models
For strobe candela selection, adjust the slide switch located
on the rear of the product while watching the viewing win-
dow under the reflector on the front of the unit. Use Table
1 to determine current draw at various candela and chime
tone settings. Tables 2 and 3 can be used to determine
strobe light output at various viewing angles.
NOTE:
SpectrAlert products set at 15 and 15/75 candela au-
tomatically work on either 12V or 24V power supplies. The
products are not listed for 12V operating voltages when set
to any other candela settings.
