Digital Security Controls Ltd. 16WS4933 ユーザーズマニュアル
heating oil, kerosene, coal, charcoal, gasoline, or
wood. The incomplete combustion of fuel can occur
in any device which depends on burning for energy
or heat such as furnaces, boilers, room heaters, hot
water heaters, stoves, grills, and in any gasoline
powered vehicle or engine (e.g., generator set,
lawnmower). Tobacco smoke also adds CO to the
air you breathe. When properly installed and main-
tained, your natural gas furnace and hot water
heater do not pollute your air space with CO. Nat-
ural gas is known as a “clean burning” fuel because
under correct operating conditions, the combustion
products are water vapor and carbon dioxide
(CO2), which is not toxic. The products of com-
bustion are exhausted from furnaces and water heat-
ers to the outside by means of a fuel duct or
chimney. Correct operation of any burning equip-
ment requires two key conditions:
wood. The incomplete combustion of fuel can occur
in any device which depends on burning for energy
or heat such as furnaces, boilers, room heaters, hot
water heaters, stoves, grills, and in any gasoline
powered vehicle or engine (e.g., generator set,
lawnmower). Tobacco smoke also adds CO to the
air you breathe. When properly installed and main-
tained, your natural gas furnace and hot water
heater do not pollute your air space with CO. Nat-
ural gas is known as a “clean burning” fuel because
under correct operating conditions, the combustion
products are water vapor and carbon dioxide
(CO2), which is not toxic. The products of com-
bustion are exhausted from furnaces and water heat-
ers to the outside by means of a fuel duct or
chimney. Correct operation of any burning equip-
ment requires two key conditions:
a.
An adequate supply of air for complete com-
bustion.
bustion.
b.
Proper venting of the products of combustion
from the furnace through the chimney, vent or
duct to the outside.
from the furnace through the chimney, vent or
duct to the outside.
Typical carbon monoxide gas problems are sum-
marized here:
marized here:
a.
Equipment problems, due to defects, poor
maintenance, damaged and cracked heat
exchangers.
maintenance, damaged and cracked heat
exchangers.
b.
Collapsed or blocked chimneys or flues, dis-
lodged, disconnected or damaged vents.
lodged, disconnected or damaged vents.
c.
Downdraft in chimneys or flues. This can be
caused by very long or circuitous flue runs,
improper location of flue exhaust or wind con-
ditions.
caused by very long or circuitous flue runs,
improper location of flue exhaust or wind con-
ditions.
d.
Improper installation or operation of equip-
ment, chimney or vents.
ment, chimney or vents.
e.
Air tightness of house envelop/inadequate com-
bustion of air.
bustion of air.
f.
Inadequate exhaust of space heaters or appli-
ances.
ances.
g.
Exhaust ventilation/fireplace competing for
air supply.
air supply.
Potential sources of carbon monoxide in your home
or office include clogged chimney, wood stove,
wood or gas fireplace, automobile and garage, gas
water heater, gas appliance, gas or kerosene heater,
gas or oil furnace, and cigarette smoke.
or office include clogged chimney, wood stove,
wood or gas fireplace, automobile and garage, gas
water heater, gas appliance, gas or kerosene heater,
gas or oil furnace, and cigarette smoke.
More information about conditions
which result in transient CO situations:
which result in transient CO situations:
1.
Excessive spillage or reverse venting of fuel
burning appliances caused by:
burning appliances caused by:
a.
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).
direction and or velocity, including high
gusts of wind; heavy air in the vent pipes
(cold humid air with extended periods
between cycles).
b.
Negative pressure differential resulting
from the use of exhaust fans.
from the use of exhaust fans.
c.
Simultaneous operation of several fuel
burning appliances competing for limited
internal air.
burning appliances competing for limited
internal air.
d.
Vent pipe connection vibrating loose from
clothes dryers, furnaces, or water heaters.
clothes dryers, furnaces, or water heaters.
e.
Obstructions in or unconventional vent
pipe designs which amplify the above situ-
ation.
pipe designs which amplify the above situ-
ation.
2.
Extended operation of unventilated fuel burn-
ing devices (range, oven, fireplace, etc).
ing devices (range, oven, fireplace, etc).
3.
Temperature inversions which can trap
exhaust gases near the ground.
exhaust gases near the ground.
4.
Car idling in an open or closed attached gar-
age, or near a home.
age, or near a home.
Possible Symptoms of Carbon Monox-
ide Poisoning
ide Poisoning
Carbon monoxide is colorless, odorless, tasteless,
and very toxic. When inhaled, it produces an effect
known as chemical asphyxiation. Injury is due to the
combining of CO with the available hemoglobin in
the blood, lowering the oxygen-carrying capacity of
the blood. In the presence of CO gas, the body is
quickly affected by oxygen starvation. The fol-
lowing symptoms are related to CO poisoning and
should be discussed with all members of the house-
hold:
and very toxic. When inhaled, it produces an effect
known as chemical asphyxiation. Injury is due to the
combining of CO with the available hemoglobin in
the blood, lowering the oxygen-carrying capacity of
the blood. In the presence of CO gas, the body is
quickly affected by oxygen starvation. The fol-
lowing symptoms are related to CO poisoning and
should be discussed with all members of the house-
hold:
a.
Mild exposure: slight headache, nausea, vomit-
ing, fatigue (often described as "Flu-like"
symptoms).
ing, fatigue (often described as "Flu-like"
symptoms).
b.
Medium exposure: severe throbbing headache,
drowsiness, confusion, fast heart rate
drowsiness, confusion, fast heart rate
c.
Extreme exposure: unconsciousness, con-
vulsions, cardiorespiratory failure, death.
vulsions, cardiorespiratory failure, death.
d.
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 exiting the building
or calling for assistance. Young children and
household pets are typically the first affected.
MONOXIDE POISONING indicate that
while victims are aware they are not well,
they become so disoriented they are unable to
save themselves by either exiting the building
or calling for assistance. Young children and
household pets are typically the first affected.
Action to Take When Alarm Sounds
In case harmful levels of CO gas are detected, your
detector will go into continuous full alarm. Try to
take the following necessary actions immediately:
detector will go into continuous full alarm. Try to
take the following necessary actions immediately:
1.
Push the detector Test/Hush switch to silence
the alarm. Warning: Never remove the battery
to silence the alarm. Removing the battery
removes your protection! Pushing the
Test/Hush button mutes the alarm for 5
minutes. After 5 minutes, the alarm resumes
if CO levels remain high.
Call your emergency service (Please write the
telephone numbers):
(tel. No. ...........................);
or fire department:
(tel. No. ..........................).
the alarm. Warning: Never remove the battery
to silence the alarm. Removing the battery
removes your protection! Pushing the
Test/Hush button mutes the alarm for 5
minutes. After 5 minutes, the alarm resumes
if CO levels remain high.
Call your emergency service (Please write the
telephone numbers):
(tel. No. ...........................);
or fire department:
(tel. No. ..........................).
2.
Immediately move to fresh air - outdoors or
by opening door/window. Do a head count to
check that all persons are accounted for. Do
by opening door/window. Do a head count to
check that all persons are accounted for. Do
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