GE Security 250-CO Specsheet
GE
Fire & Life Safety
Security
Overview
The GE SafeAirTM 250-CO carbon monoxide (CO) detector is an accurate and reliable means of alerting building occupants of potentially
dangerous levels of CO in the protected area. The internal electrochemical sensor communicates with a sophisticated on-board
microprocessor that accurately tracks CO levels over time.
This commercial-grade detection technology results in quick
response, reliable sensing, fast reset time, and superior false alarm
immunity. Its small size allows the 250-CO to blend inconspicuously
with any decor, and its smooth contoured design is compatible with
both residential and commercial environments.
Unaffected by normal indoor temperature variations, the GE 250CO actually self-adjusts for environmental changes and operates
reliably under a wide variety of conditions. It also monitors its own
performance and automatically compensates for sensitivity drift
throughout the course of its service life.
Like all CO detectors, the 250-CO has a limited service life. When it
reaches this point, the 250-CO’s six-year end-of-life timer automatically triggers a warning, locally, at the control panel, and optionally,
at a central monitoring station, indicating that the device should be
serviced.
An integrated temporal four-horn provides local signaling capability
for the 250-CO, and it easily interfaces with any Listed intrusion or
fire alarm system by means of its 150mA output relay, which may be
connected to the auxiliary input on the control panel. Its low current
draw results in little additional demand on the system power supply.
The 250-CO fully complies with the latest UL 2075 requirements
which allows for installation in a wide range of residential and commercial settings.
Conventional Initiating Devices
Standard Features
• Uses highly reliable, commercial-grade, electro-chemical sensing technology
• Self-diagnostics keep the device operating optimally throughout
its service life
• Sensor is unaffected by fluctuations in normal indoor temperature
• Built-in trouble/power supervision relay
• 12 or 24VDC operation and 150mA relay contact configurable
for normally open or normally closed operation
• Long-life six-year sensor
• Transmits sensor end-of-life to the control panel and central station if the system is monitored
• Fully listed to the latest UL 2075 CO standard for residential or
commercial occupancies
• Large terminals ease wiring installation 14 to 22 AWG
• One-touch TEST/HUSH button simplifies local operation
• Integrated 85 dBa temporal 4-sounder for local notification
• On-board LED provides local alarm and trouble indication
• Inconspicuous footprint and attractively contoured design
• Adapter plate makes replacing GE 240-COe CO detector simple
SafeAir
Carbon
Monoxide Detector
250-CO
TM
Not to be used for installation purposes. Page 1 of 4
Data Sheet GES85001-0618 Issue 2
Application
The SafeAir 250-CO Carbon Monoxide Detector is intended for
ordinary indoor-dwelling unit applications in both residential and
commercial occupancies, including single/multiple family residential
occupancies, hotel rooms, dorm rooms, and other areas approved
by the authority having jurisdiction (AHJ). The 250-CO detector can
connect to either UL 985 (Household Fire Warning) or UL 864 (Commercial Fire) control panels. It is not intended for use in industrial
applications such as gasoline refineries or parking garages, which require different listings. The 250-CO detector has an optional adapter
mounting plate. To purchase the plate order P/N 250-COPLT-5PKG.
Selecting a suitable location is critical to the operation of CO detectors. Install the 250-CO in accordance with NFPA 720 Standard for
the Installation of Carbon Monoxide (CO) Detection and Warning
Equipment. Place wall-mounted detectors at least 5 ft. (1.5 m) up
from the floor. For ceiling mounted applications, place the detector
at least 1 ft. (0.3 m) from any wall.
Recommended CO detector locations:
Within 10 ft. (3 m) of all sleeping areas, including areas such as
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hotel rooms and dorm rooms.
In a suitable environment: areas with a temperature range of
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32 to 104°F (0 to 40°C) and with a relative humidity range of 0
to 90% noncondensing.
In residential dwellings, locate detectors in every bedroom,
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within 10 ft. (3 m) of sleeping areas, and on each level. At a
minimum, place one detector outside the sleeping areas.
Operation
Test/hush button: Use the test/hush button to test the alarm and
silence an activated alarm. Pushing the test/hush button silences
the integral sounder for five minutes. The red alarm light stays on
and if CO is still present after five minutes, the detector once again
sounds in the temporal-four pattern. The hush feature does not
operate at CO levels above 350 ppm (parts per million).
Distinct 85 dB temporal four-sounder alarm: The 85 dB temporalfour sounder provides a distinctive alarm notification that is easy
to differentiate from smoke alarm notification devices. The alarm
beeps four times, rests five seconds and then repeats the pattern.
The built-in sounder is a supplementary alarm notification device.
The control panel is considered the primary alarm notification device. To silence the detector, push the test/hush button.
WARNING: Use only with a UL Listed control panel capable of
differentiating between alarm signals (fire, burglary, CO etc.) and
providing distinct identification for each.
End of sensor life indicator: The detector uses both a flashing green
LED and intermittent sounder chirps to indicate that the detector
needs replacing. To silence the detector, push the test/hush button.
The detector also begins signaling a trouble when the CO sensor is
approaching end-of-life. When connected to a Listed control panel,
the trouble relay can report a trouble condition locally at the panel
and optionally at the central station, if the system is monitored.
Common trouble relay: The trouble relay opens to indicate a
trouble condition upon lost power, CO sensor cell trouble, or cell
end-of-life.
Recommended CO detector locations in commercial occupancies:
On every habitable level of the building based on an engineer-
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ing evaluation considering potential sources and migration of
carbon monoxide
In any area required by local building codes, legislation, or
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authorities having jurisdiction
On a firm, permanent surface
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Do not install the CO detector:
Within 10 ft. (3 m) of a fuel-burning appliance
8
Near air conditioners, heating registers, and any other ven-
8
tilation source that may interfere with CO gas entering the
detector
Where furniture or draperies may obstruct the airflow
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In a recessed area
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Recommended locations for CO detectors
Installation
The 250-CO Carbon Monoxide Detector is a four-wire device
designed to use a Class 2 output from a control panel or auxiliary
power supply Listed to UL 985 or 864 standards.
All wiring must conform to the NFPA 70 National Electric Code, UL
2075, NFPA 720, an applicable codes. Use 14 to 22 AWG wire.
WARNINGS: Connect the CO detector only to a zone dedicated
exclusively for CO detection and that is monitored 24 hours a
day. Do not connect to an initiating circuit with fire or security
devices. Failure to properly install, test, and maintain a CO detector may cause it to fail, potentially resulting in loss of life.
The 250-CO/240-COe adapter plate
Use the 250-COPLT-5PKG adaptor plate when replacing a 240-COe
with a 250-CO to cover the footprint of the 240-COe. For example,
use the plate to cover any paint discoloration left behind from the
240-COe.
Not to be used for installation purposes. Page 2 of 4
Data Sheet GES85001-0618 Issue 2
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