G N - 5 0 3
S E R I E S
Standard Product Features
• GN-503 available in 120VAC with 9VDC battery back-up
• Horn frequency 3100 Hz (nominal)
• Meets sensitivity requirements of ANSI/UL 2034
• F Model: One (1) set of Form A/Form C contacts that activate
for smoke and/or CO events
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•
Relay contacts operate on battery back-up
•
Push button self test feature
• Push button functional test feature
• Quick-disconnect wiring harness
• Non-latching (self restoring) alarm
• Fully insect protected
• Red
LED pulses every 30 seconds, green LED for AC
power on
• Mounting hardware adapts to standard junction boxes,
including but not limited to 4x4x2-1/8 octagon
• Dust cover to prevent contamination during installation
• Low or missing battery indicator
• 1 year warranty from date of purchase
• 5 year limited warranty on CO sensor
Additional Smoke Alarm Features
• Photoelectric smoke sensing technology
• Temporal 3 evacuation sounding pattern for smoke
annunciation
• Nominal 2.5% sensitivity (smoke)
• Solid state red
LED to indicate smoke presence
Additional CO Alarm Features
• Electrochemical sensor
• Temporal 4 sounding pattern for CO annunciation
• End of life signal indicates CO sensor has reached
depletion state and unit must be replaced
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•• CCSSFFMM ## 55227766--00556699::114444
Combination Photoelectric Smoke
and Carbon Monoxide Alarm
120VAC/9VDC Single/Multiple Station Smoke
and CO Alarm
Product Listings
Applications
The GN-503 (120VAC/9VDC) Series of combination photoelectric smoke and
electrochemical sensor carbon monoxide alarms are for use as evacuation devices in all
dwelling units, including but not limited to homes, apartments, hospitals, hotels, motels
and other commercial occupancies. The GN-503 Series is listed in compliance with
ANSI/UL 217, ANSI/UL 2034, for installation per NFPA 720 and NFPA 72.
Available in three models, the GN-503 Series is engineered to virtually eliminate
nuisance alarms and deliver outstanding performance wherever reliable smoke and CO
protection is required. The GN-503F features one (1) set of Form A/Form C contacts that
activate for smoke and/or CO events.
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Both the GN-503F and GN-503FF provide a connection
to a protected premises alarm system to provide a supervisory/trouble signal.
The GN-503 Series is provided with a 9VDC alkaline battery for electrical back-up in the
event building power is lost. The battery impedance is verified and the alarm provides a
low or missing battery warning. The battery drawer provides easy replacement without
removing the unit from the wall or ceiling.
The GN-503 Series is designed with a self test feature that quickly notifies if the alarm is
functioning properly or needs attention (signified by a series of chirps) by simply pressing
the test button. The functionality tests that the smoke/CO alarm is operating properly
(signified by going into alarm). The self and functionality tests are in compliance with
NFPA 72, NFPA 720 and ANSI/UL Standards.
The GN-503 Series provides a temporal 3 evacuation tone for smoke alarm annunciation
and all units provide a temporal 4 tone for CO alarm annunciation. Per NFPA 720, the
temporal 3 evacuation tone for smoke alarm will take precedence over the temporal 4
tone for CO alarm.
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Product Compliance
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