Carbon Monoxide Alarm User`s Manual

Carbon Monoxide Alarm User`s Manual
Carbon Monoxide Alarm User’s Manual
Read these instructions carefully before operating or serving and retain for future
DC operated carbon monoxide alarm
Test / Hush button
High and stable sensitivity
Quick fix mounting bracket for easy installation
Fitting and battery tamper-resist feature
LED operation indicator
Low-battery and battery missing warning indicator
Auto reset after the CO is clear
Model Number:
Detection Type:
Power Source:
Standby Current:
Alarm Current:
Alarm Level:
Alarm Sound Level
9V DC Battery
50ppm (Between 60-90 min)
100ppm (between 10-40 min)
300ppm (Between<3min.)
85 Decibels at 1 meter
Operation Temperature:
Ambient Humidity:
5℃ to 38 ℃
15% to 90% Relative Humidity
Carbon monoxide is a colorless, odorless and tasteless poison gas that can be fatal when inhaled. CO blinds to the hemoglobin
in the blood and inhibits its capacity to carry oxygen. CO kills hundreds of people each year and injures many more because it
is difficult to be detected with the human senses. In high concentrations, CO can kill in minutes.
Inside your home, appliances used for heating and cooking are the most likely sources of CO. Vehicles running in attached
garages can also produce dangerous levels of CO. CO can be produced when burning any fossil fuel, such as gasoline, propane,
natural gas, oil and wood. It can be produced by any fuel-burning appliance that is malfunctioning, improperly installed, or not
ventilated correctly, such as:
z Automobiles, furnaces, gas ranges/stoves, gas clothes dryers, water heaters, portable fuel burning space heaters and
generators, fireplaces, wood-burning stoves and certain swimming pool heaters.
Blocked chimneys or flues, back drafts and changes in air pressure, corroded or disconnected vent pipes, loose or cracked
furnace exchangers.
Vehicles and other combustion engines running in an open or closed garage, attached or near a home.
Burning charcoal or fuel in grills and hibachis in an enclosed area.
The following conditions can result in transient CO situations:
z Excessive spillage or reverse venting of fuel-burning appliances caused by outdoor ambient conditions, such as, wind
direction and/or velocity, including high gusts of wind, heavy air in the vent pipes (Cold/humid air with extended periods
between cycles).
z Negative pressure resulting from the use of exhaust fans.
z Simultaneous operation of several fuel-burning appliances competing for limited internal air.
z Vent pipe connections vibrating loose from clothes dryers, furnaces, or water heaters.
z Obstructions in, or unconventional, vent pipe designs which can amplify the above situations.
z Extended operation of unvented fuel-burning devices (range, oven, fireplace, etc.).
z Temperature inversions which can trap exhaust gases near the ground.
z Vehicle idling in an open or closed garage, or near a home.
To be safe, know the possible sources of CO in your home. Keep fuel-burning appliances and their chimneys and vents in good
working condition. Learn the early symptoms of exposure, and if you suspect CO poisoning, move outside to fresh air and get
emergency help. Your first line of defense is an annual inspection and regular maintenance of your appliances. Contact a
licensed contractor or call your local utility company for assistance.
35 ppm
The maximum allowable concentration for continuous exposure for healthy adults in any 8 hour period
200 ppm
Slight headaches, fatigue, dizziness, nausea after 2-3 hours
400 ppm Frontal headaches within 1-2 hours, life threatening after 3 hours
800 ppm Dizziness, nausea and convulsions within 45 minutes. Unconsciousness within 2 hours and death within 3 hours
1600 ppm Headache, dizziness and nausea within 20 minutes. Death within 1 hour.
6400 ppm Headache dizziness and nausea within 1-2 minutes
The following symptoms related to CO POISONNING and are to be discussed with ALL members of the household:
Mild Exposure: Slight headache, nausea, vomiting, fatigue (often described as “flu-like” symptoms)
Medium Exposure: Severe throbbing headache, drowsiness, confusion, fast heart rate.
Extreme Exposure: Unconsciousness, convulsions, cardio respiratory failure, death.
Many cases of reported CARBON MONOXIDE POISONING indicate that while victims are aware they are not well. They
become so disoriented they are unable to save themselves by either the building or calling for assistance. Yong children and
household pets are typically the first affected.
Installation of your CO alarm is only one step in your safety plan. Educate yourself and family to the sources and
symptoms of CO poisoning and how to use your carbon monoxide alarm:
z Test your CO alarm weekly
z Replace the battery immediately once depleted
z Buy appliances accepted by a recognized testing laboratory
z Install the appliances properly, following the manufacturer’s instructions
z Have installations done by professionals
z Have your appliances checked regularly by a qualified serviceman
z Clean chimneys and flues yearly
z Make regular visual inspections of all-fuel-burning appliances
Check appliances for excessive rust and scaling
Open windows when a fireplace or wood burning stove is use
Be aware of CO poisoning symptoms
z Burn charcoal inside your home, RV, camper, tent or cabin
z Install, convert or service fuel burning appliances without proper knowledge, skill and expertise
z Use a gas range, oven or clothes dryer for heating
z Operate unvented gas burning appliances using kerosene or natural gas in closed room
z Operate gasoline powered engines indoors or in confined areas
z Ignore a safety device when it shuts an appliance
z Ignore any warning from your CO alarm
z Do not barbecue indoors, or in attached garage
Typical single-story home
For minimum protection you should fit an alarm in the bedrooms or in the
hallway of sleeping areas. Place it as near to the sleeping areas as possible and
ensure the alarm is audible when the bedrooms are occupied.
Typical Multi-story or split level home
For minimum protection, you should fit at least one alarm on each floor.
Note: For maximum protection an alarm should be fitted in or near every room
that contains a fuel-burning appliance such as any central heating boilers, gas fires,
room heaters, water heaters, cookers, grills, etc.
● Maximum Protection
○Minimum Protection
CAUTION: CO alarms can only sense CO that reaches the unit’s sensor. It’s possible that CO may be present in other
areas without reaching the alarm.
This carbon monoxide alarm is designed to detector carbon monoxide gas from ANY source of combustion.
designed to detect smoke, fire or any other gas.
It is NOT
Carbon Monoxide has a similar density to warm air and can be fitted in various locations. If it is fitted to a wall, it should be
fitted at least 1.5 meters (5 feet) above the floor level and at least 1.85 meters (6 feet) from the appliance to ensure the
maximum effectiveness.
Improper location can affect the sensitive electronic components in this alarm. To avoid causing damage to the unit,. to provide
optimum performance, and to prevent unnecessary nuisance alarms:
1. The alarm is not be located within 1.5m (5 feet) of any cooking appliance.
2. Situations where the temperature may fall below 5℃ or rise above 38℃.
3. In a damp or humid area such as near bathrooms or in shower areas.
4. Any area where high levels of dusty, dirty or greasy emissions could contaminate or clog the sensor.
5. Behind drapes or furniture.
6. In the path o fair discharged from a furnace/air conditioning vent or ceiling fan.
7. Outside the building.
8. Directly above a sink or cooker.
This CO alarm is designed for indoor use only. Do not expose to rain or moisture It will not
protect against the risk of CO poisoning when the battery has drained.
DO NOT open or tamper with the alarm as this could cause malfunction.
This CO alarm is powered by a battery and requires no additional wiring. It can be installed either on the ceiling or the wall
using the fixings provided.
WARNING: CO alarm installation must be in accordance with the requirements of the national electrical code and any
local codes that may apply and by a competent person.
1. From back of CO alarm, remove the mounting plate by turning it counterclockwise.
(To later engage tamper-resist feature, twist out and set aside one of the pins molded into plate. Both pins are exactly the
2. Secure plate to ceiling or wall with mounting screws.
3. Lift open battery pocket door.
4. Connect new 9-volt battery to battery connector inside battery pocket. Be sure battery is
securely connected. Red LED may blink briefly when battery is installed.
5. Close battery pocket door, snapping it into place.
6. Position CO alarm to mounting plate and turn clockwise to lock into place. To engage
tamper-resist feature, insert pin into notch on edge of CO alarm after alarm is properly
positioned in base.
7. Push test button to test CO alarm. See TESTING THE CO ALARM.
Normal Operation
When no carbon monoxide is present, the green light flashes ONCE A MINUTE and is an indication that your alarm is powered
and functional.
Alarm Condition
When the unit detects dangerous levels of CO, Red LED flashes rapidly and alarm sounds loudly (repeating 4 beeps,
pause).This will continue as long as there is a dangerous level of CO present. Should the CO levels return to normal, the unit
will stop beeping.
WARNING: This product may not alarm at low carbon monoxide levels. Individuals with medical problems may
consider using warning devices which provide audible concentrations under 30 ppm.
Hush Feature
• The Hush Feature is for your convenience only and will not correct a CO problem. Always check your home for a potential
problem after any alarm. Failure to do so can result in injury or death.
NEVER remove the batteries from your CO Alarm to silence the horn. Use the silence feature.Removing the batteries removes
your protection! See “If Your CO Alarm Sounds” for details on responding to an alarm.
The Hush Feature is intended to temporarily silence your CO Alarm’s alarm horn while you correct the problem—it will not
correct a CO problem. While the alarm is silenced it will continue to monitor the air for CO .When CO reaches alarm levels the
alarm will sound— repeating horn pattern: 4 beeps, a pause, 4 beeps, etc. Press and hold the Test/Silence button until the horn is
silent. The initial Silence cycle will last approximately 4 minutes.
NOTE: After initial 4-minute Silence cycle, the CO Alarm re-evaluates present CO levels and responds accordingly. If CO
levels remain potentially dangerous or start rising higher the alarm will start sounding again.
While the detector is silenced:
If the CO Alarm...
This means...
Is silent for only 4 minutes, then starts sounding
loudly—4 beeps, pause, 4 beeps, pause
CO levels are still potentially dangerous.
If the CO Alarm...
This means...
Remains silent after you pressed the Test/Silence
CO levels are dropping.
Low Battery Signal
The horn “chirps” once every minute. This warning should last for up to 30 days, but you should replace the batteries as soon as
NOTE: With normal use the batteries will last for 1 year minimum. However, battery life will be reduced if either a fault occurs
with the battery or the alarm remains in alarm for long periods of time.
Unit Malfunction
Your CO alarm performs an internal self-diagnosis to make sure that it is functioning properly. If the unit has
detected an error, there is a failure warning. The horn sounds 3 short “chirps” every minute. Push and hold
Test/Hush button, Red LED is on. Release Test/Hush button, Red LED is off. In case of the above failure
warning happened, the CO alarm should be replaced to a new one.
End of Life warning
The horn sounds 2 short “chirps” following with 1 long “chirp”every minute. In case of the above warning
happened, the CO alarm is end of life, and the CO alarm should be replaced to a new one.
If your CO alarm sounder is beeping, and you are not sure if it is a CO alarm or malfunction alert, reset the alarm, open
windows for ventilation, turn off fuel-burning appliance (like kerosene or oil heaters, furnaces, wood-burning stoves, water
heaters, or other fossil-fuel burning appliances)
Never ignore a CO unit’s alarm. A true alarm is an indication of potentially dangerous levels of carbon monoxide. CO alarms
are designed to alert you to the presence of carbon monoxide before an emergency, before most people would experience
symptoms of carbon monoxide poisoning, giving you time to resolve the problem calmly.
• Test the CO Alarm once a week. If the CO Alarm ever fails to test
correctly, have it replaced immediately! If the CO Alarm is not working
properly, it cannot alert you to a problem.
• DO NOT stand close to the Alarm when the horn is sounding.
Exposure at close range may be harmful to your hearing. When testing,
step away when horn starts sounding.
Push and hold the Test/Silence button on the cover until the LED flashes. The alarm horn will sound 4 beeps, a pause, then 4
beeps. The ALARM (RED) light will flash.
The alarm sequence should last 5-6 seconds. If it does not alarm, make sure fresh batteries are correctly installed, and test it
again. If the unit still does not alarm, replace it immediately.
Testing with Carbon Monoxide
The unit checks for CO every 4 seconds and as soon as it detects CO it flashes the red light (as per Table A) to
confirm that is detecting CO gas.
The unit can be tested with CO by using one of the kits that comes with CO either in a glass phial or aerosol can.
Follow the instructions on the kit. When it senses the CO,it will have a Pre-Alarming status, please refer to
table A for all detailed alarming indicators:
CO Alarm Response
CO Level
0 ppm
50 ppm
100 ppm
300 ppm
Pre-Alarming status:
(Red LED only without
2 Flashes / 4 Seconds
3 Flashes / 4 Seconds
4 Flashes / 4 Seconds
Response Time
(Table A)
Red LED Indictor
Alarming Horn
4 Flashes / 4 Seconds
4 Flashes / 4 Seconds
4 Flashes / 4 Seconds
4 Beeps / 4 Seconds
4 Beeps / 4 Seconds
4 Beeps / 4 Seconds
If the alarm does not test properly:
1. Make sure that fresh batteries are installed correctly.
2. Be sure the Alarm is clean and dust-free.
3. Install fresh 9V batteries* and test the Alarm again. “For a list of acceptable replacement to batteries, see “CHOOSING A
• DO NOT try fixing the Alarm yourself – this will void your warranty! If the CO Alarm is still not operating properly, and it is
still under warranty, please see "How to Obtain Warranty Service" in the Limited Warranty. Install a new CO Alarm
• The Test/Hush button is the only proper way to test the CO Alarm. NEVER use vehicle exhaust! Exhaust may cause
permanent damage and voids your warranty.
Your alarm will alert you to potentially hazardous CO concentrations in your home when maintained properly. To maintain your
alarm in proper working order, it is recommended that you:
1. Test your alarm at least once a week.
2. Clean your CO alarm regularly to prevent dust build up. See “CLEAN THE CO ALARM”
Replace battery at least once a year or immediately when the low battery signal sounds once a minute.
This low voltage warning will be given for at least 30 days. Batteries should be replaced regularly as necessary.
WARNING: Use the recommended batteries as specified in this manual.
Do not use rechargeable batteries.
Explosion will happen if battery is incorrectly replaced.
You’d better use good battery to make the alarm work long.
1. Seperate the pin from the CO alarm.
Turn the alarm counterclockwise to detach it from the mounting plate.
2. Gently pull down CO alarm.
3. Remove battery from the compartment.
4. Insert a new 9-volt battery to connector. NOTE POLARITY OF CONNECTIONS.
Ensure the metal tab is fully depressed when the battery has been fitted.
5. Using the Push-to-Test button, test the CO alarm to verify 9V DC battery.
6. Reattach the CO alarm to the mounting plate by turning smoke alarm clockwise until it snaps into place.
7. Insert the two tamperproof tabs back into the notch on edge of CO alarm after alarm is properly positioned in base.
8. Turn on power supply and test smoke alarm using push-to-test button. See “TESTING THE CO ALARM”
Note: If the unit fails to operate when being tested, Please refer to “TROUBLESHOOTING”.
Do not attempt to remove the cover to solve the problem yourself. This will void your warranty.
The unit requires one standard 9V battery. The expected life of normal carbon-zinc 9V battery is one year maximum under
normal operation. The expected life of normal alkaline 9V battery is three years under normal operation. The following
batteries are acceptable as replacements:
Golden Power #6F22, Megaton #6F22; New Leader #6F22; Gold Peak #1604; Eveready #522, #1222;
Golden Power G6F22; Golden Power GL6F22A.
Clean the CO alarm at least once a month to remove dust, dirt, or debris. Using the soft brush or wand
attachment to a vacuum cleaner, vacuum all sides and cover of CO alarm. Be sure all the vents are free of
debris. If necessary, use a damp cloth to clean CO alarm cover.
IMPORTANT: Do not attempt to remove the cover to clean inside the CO alarm. This will void your
CO Alarms don’t last enduringly. CO Alarms are sophisticated electronic devices with many parts. Although the alarm and its
component parts have undergone stringent tests, and are designed to be very reliable, it is possible that parts can fail. Therefore,
you should test your CO Alarm weekly. The CO Alarm must be replaced in 3 years or by the replacement date on the label of
unit on back side
z Never use detergents or solvents to clean the alarm. Chemicals can permanently damage or temporarily contaminate the
z Avoid spraying air fresheners, hair spray, paint or other aerosols near the alarm.
z Do not paint the alarm. Paint will seal the vents and interfere with proper sensor operation.
● Move the CO Alarm to a remote location, to prevent possible damage to or contamination of the sensor if you will be
staining or stripping wood floors or furniture, painting, wall-papering, or using aerosols or adhesives.
WARNING: Reinstall the CO Alarm as soon as possible to assure continuous protection.
The following is a list of substances that at high levels can damage the sensor or cause temporary false alarm that is not a
carbon monoxide alarm.
Ethylene, ethanol, alcohol, iso-propanol, benzene, toluene, ethyl acetate, hydrogen, hydrogen sulfide and sulfur dioxide.
Also most aerosol sprays, alcohol based products; paint, thinner, solvent, adhesive, hair spray, after shave, perfume, auto
exhaust (cold start) and some cleaning agents.
Actuation of your CO alarm indicates the presence of carbon monoxide (CO), which can kill you. If alarm sounds:
1. Operate Test/Hush button to reset the alarm.
2. Call your emergency services.
3. Immediately move to fresh air-outdoors or by an open door/window. Make sure that all persons are alerted. Do not
re-enter the premises nor move away from the open door/window until emergency services responders have arrived,
the premises have been aired out, and your alarm remains in its normal condition.
4. After following steps 1-3, if your alarm reactivates within a 24 hour period, repeat steps 1-3, and call a qualified
appliance technician to investigate for sources of CO from fuel burning equipment and appliances, and inspect for
proper operation of this equipment. If problems are identified during this inspection have the equipment serviced
Note any combustion equipment not inspected by the technician and consult the manufacturer’s instructions, or contact
the manufacturers directly for more information about CO safety and the equipment. Make sure that motor vehicles are
not, or have not been, operating in a garage attached or adjacent to the residence. Never restart the source of a CO
problem until it has been corrected.
WARNING: Never ignore the sound of the alarm! If the alarm is sounding, pressing the test/reset button will
terminate the alarm. If the CO condition that caused the alert in the first place continues, the alarm will reactivate. If the
unit alarms again within six minutes, it is sensing high levels of CO which can quickly become a dangerous situation.
Trouble Shooting Guide
The horn sounds 1 short
“chirp” every minute.
Low battery warning.
Install new 9V battery.
The horn sounds 3 quick
“chirps” every minute.
Malfunction signal. CO Alarm
needs to be replaced.
The CO alarm should be replaced to a
new one.
The horn sounds 2 quick
“chirps” following with 1
long “chirp”.
Malfunction signal. CO Alarm
needs to be replaced.
The CO alarm should be replaced to a
new one.
CO Alarm goes back into
alarm 4 minutes after you
press the Test/Hush button.
CO levels indicate a potentially
dangerous situation.
home and call the Fire Department. If not,
press the Test/Hush button again and keep
ventilating your home.
CO Alarm sounds
frequently even though no
high levels of CO are
revealed in an investigation.
The CO Alarm may be
improperly located. Refer to
Relocate your alarm. If frequent alarms
continue, have home rechecked for
potential CO problems. You may be
experiencing an intermittent CO problem.
This apparatus is designed to protect individuals from the acute effects of carbon monoxide exposure. It will
not fully safeguard individuals with specific medical conditions. If in doubt consult a medical practitioner.
Vs-Top Electronics Co, Ltd. (“the Company”), guarantees this Carbon Monoxide Alarm for two years from the date of
purchase against any defects that are due to faulty materials or workmanship. This guarantee only applies to normal
conditions of use and service, and does not include damage resulting form accident, neglect, misuse, unauthorised
dismantling, or contamination howsoever caused. This guarantee excludes incidental and consequential damage. Vs-Top
Electronics Co, Ltd. makes no guarantee, express or implied, written or oral, including that of merchantability or fitness for
any particular purpose with respect to battery.
Manufacturer: Xiamen Vs-Top Electronics Co., Ltd.
2nd floor, No-107 Xiaguang Road, Xinyang Industrial District, Haicang ,Xiamen, China.
Tel: 0086-592-6017700
Fax: 0086-592-6017711
E-mail: [email protected] Website:
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