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CO inhibits the blood’s capacity to carry oxygen.
Possible Sour
ces
CO can be produced when burning any fossil fuel:gaso-
line,propane,natural gas,oil and wood. It can be pro-
duced by any fuel-burning appliance that is malfunction-
ing,improperly installed,or not ventilated correctly.
Possible sources include furnaces,gas ranges/stoves,gas
clothes dryers,water heaters,portable fuel burning
space heaters,fireplaces,wood-burning stoves and cer-
tain swimming pool heaters. Blocked chimneys or flues,
back drafting and changes in air pressure,corroded or
disconnected vent pipes,and a loose or cracked furnace
exchanger can also cause CO. Vehicles and other com-
bustion engines running in an attached garage and using
a charcoal/gas grill or hibachi in an enclosed area are all
possible sources of CO.
The following conditions can result in transient CO
situations:
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),negative pressure dif-
ferential resulting from the use of exhaust fans,simulta-
neous operation of several fuel-burning appliances com-
peting for limited internal air,vent pipe connections
vibrating loose from clothes dryers,furnaces,or water
heaters,obstructions in,or unconventional,vent pipe
designs which can amplify the above situations,extend-
ed operation of unvented fuel-burning devices (range,
oven,fireplace,etc.),temperature inversions which can
trap exhaust gasses near the ground,car idling in an
open or closed attached garage,or near a home.
Carbon Monoxide Safety Information
23
22
•Never use detergents or other solvents to clean
the unit.
•Avoid spraying air fresheners,hair spray,or other
aerosols near the Smoke/CO Alarm.
Do not paint the unit. Paint will seal the vents and
interfere with the sensor’s ability to detect smoke and
CO. Never attempt to disassemble the unit or clean
inside. This action will void your warranty.
Move the Smoke/CO Alarm and place in another loca-
tion prior to performing any of the following:
• Staining or stripping wood floors or furniture
•Painting
•Wall papering
• Using adhesives
Storing the unit in a plastic bag during any of the above
projects will protect the sensors from damage. Do not
place near a diaper pail.
WARNING: Reinstall the Smoke/CO Alarm as soon as
possible to assure continuous protection.
When household cleaning supplies or similar contami-
nates are used,the area must be well ventilated. The fol-
lowing substances can effect the CO sensor and may
cause false readings and damage to the sensor:
Methane,propane,iso-butane,iso-propanol,ethyl
acetate,hydrogen sulfide,sulfide dioxides,alcohol based
products,paints,thinner,solvents,adhesives,hair spray,
after shave,perfume,and some cleaning agents.
Carbon Monoxide Safety Information
General CO Information
Carbon monoxide (CO) is a colorless,odorless,and
tasteless poison gas that can be fatal when inhaled.
General Maintenance