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Thank you for purchasing the CBFC28 carbon
monoxide (CO)
alarm.
This unit uses advanced electrochemical sensor, and with LCD
digital display for CO concentra on. Please take a few minutes to
thoroughly read the user manual before opera ng or servicing
and familiarize yourself andyour family with its opera on. And
save for future reference.
CAUTION:
This CO alarm is designed for indoor use only. Do not expose to
rain or moisture. Do not knock or drop the detector. Do not open
or tamper with the alarm as this could cause malfunc on. The
alarm will not protect against the risk of carbon monoxide
poisoning when the ba ery has drained. Installa on of the alarm
should not be used as a subs tute for proper installa on, use
and maintenance of fuel burning appliances including
appropriate ven la on and exhaust systems.
WARNING!
- Do NOT try to repair the device, it has the risk of
electric shock or malfunc on if the device is tampered with.
Table of Contents
1. Installa on instruc ons
2. Product overview
3. Understanding your CO alarm
4. What to do if the alarm sounds
5. Ba ery installa on/replacement
6. General maintenance
7. Carbon monoxide overview
8. Specifica on
1. INSTALLATION INSTRUCTIONS
1.1 Installa on loca on
When choosing your installa on loca ons, make sure you can
hear the alarm from all sleeping areas. If you install only one CO
alarm in your home, install the alarm near bedrooms. Not in the
basement or furnace room. The recommended posi on for the
unit should be at least 1.8 meters (about 6 feet) above the floor
level.
CAUTION:
This alarm should be installed by a competent person.
1.2 Moun ng step
1. Drilling two ф5.0mm holes in the wall, the distance between
two holes center is 52mm, then inser ng two plas c stopper
provided into the holes.
2. Insert the two screws provided un l the screw heads are
approximately 5mm from wall.
3. Test the unit by using the TEST/SILENCE bu on. Ensure the
unit sound is alarm pa ern.
4. Hook the unit over the screws onto keyholes in back of unit.
1.3 Recommended installa on loca ons:
The following sugges ons are intended to help you with the
placement and installa on of your CO alarm.
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Place out of the reach of children. Under no circumstance
should children be allowed to handle the CO alarm.
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Install in a bedroom or hallway located close to the sleeping
area. Take special care to verify the alarm can be heard in
sleeping areas.
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It is recommended that a CO alarm be installed on each level
of a mul level home.
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Locate 1~3 meter (3.3~10feet) away from all fuel burning
appliances.
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Placing at eye level allows for op mum monitoring of the red
and green indicator lights.
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Insure that all vents of the unit are unobstructed.
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Do not install in dead air spaces such as peaks of vaulted
ceilings, or gabled roofs.
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Do not install in turbulent air from ceiling fans.
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Do not place near fresh air vents or close to doors and
windows that open to the outside.
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Keep the CO alarm away from excessively dusty, dirty, or
greasy areas such as kitchens, garages and furnace rooms.
Dust, grease and household chemicals can affect the sensor.
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Keep out of damp and humid areas such as the bath room.
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Avoid spraying aerosols near the CO alarm.
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Do not install in areas where the temperature is below -10°C
or ho er than 45°C.
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Do not place behind curtains or furniture. CO must be able to
reach the sensor for the unit to accurately detect CO.
2. PRODUCT OVERVIEW
2.1 FAULT indicator
The FAULT indicator (yellow LED) is used to indicate fault or
warning status of the CO alarm.
2.2 POWER indicator
The POWER indicator (green LED) is used to indicate power
status of the CO alarm. The POWER indicator will flash every 40
seconds.
2.3 ALARM indicator
The ALARM indicator (red LED) is used to indicate alarm status of
the CO alarm.
2.4 TEST/SILENCE bu on
The TEST/SILECNE bu on is used to test the unit. Press and hold
to enable TEST func on.
2.5 Alarm sounder
The alarm sounder is used to send out CO alarm warning and
fault warning informa on.
2.6 LCD screen
Indicates CO concentra on and alarm status.
3. UNDERSTANDING YOUR CO ALARM
3.1 Start up
When first power on, the POWER indicator (green) flash every
second, This is preheated state, 60 seconds later the POWER
indicator (green) flashing every 40 seconds indicates the unit is
func oning properly. The LCD displays all segments 4s and count
down. When the countdown is "0", the product goes into normal
opera on.
3.2 Normal opera on
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The POWER indicator (green) flashing once every 40 seconds.
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The LCD alternately displays current CO concentra on and
temperature every 40s.
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CO concentra on display range 0~999PPM.
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If the CO concentra on is under 20PPM, the LCD will
display "0PPM".
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If the CO concentra on overruns 999PPM, the LCD will
display "999PPM".
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Temperature display range: -9~50°C.
CARBON MONOXIDE ALARM
2.5
2.4
2.6
2.2
2.3
2.1
