CARBON MONOXIDE DETECTOR
NB-983CO SERIES USER’S MANUAL
INTRODUCTION
W
iz
m
art’s Carbon Monoxide Detector is effective for detecting any
buildup of carbon monoxide, also known as CO gas, in your home
or office . The features of your CO gas detector includes:
(1)
Easy to install. It allows connecting to fire control panel or
security monitoring system.
(2) Monitoring for carbon monoxide in a continuous manner.
(3)
Giving a loud alarm (75 dB) when it detects a buildup of
carbon monoxide.
(4) Self-testing its operative functions continuously.
(5) Offering a 5-year warranty for the carbon monoxide sensing
unit.
YOU SHOULD KNOW ABOUT CARBON
MONOXIDE
Carbon monoxide, also known as "CO" by the chemical form, is
considered to be a highly dangerous poisonous gas, because it is
colorless, odorless or tasteless and very toxic. In general,
biochemistry phenomena have shown that the presence of CO gas
inhibits the blood's capacity to transport oxygen throughout the body,
which can eventually lead to brain damage.
In any enclosed space (home, office, recreational vehicle or boat)
even a small accumulation of CO gas can be quite dangerous.
Although many products of combustion can cause discomfort and
adverse health effects, it is CO gas which presents the greatest
threat to life.
Carbon monoxide is produced by the incomplete combustion of
fuels such as natural gas, propane, 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 maintained, your natural gas furnace
and hot water heater do not pollute your air space with CO. Natural
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
combustion are exhausted from furnaces and water heaters to the
outside by means of a fuel duct or chimney.
Correct operation of any burning equipment requires two key
conditions:
(a) An adequate supply of air for complete combustion.
(b) Proper venting of the products of combustion from the
furnace through the chimney, vent or duct to the outside.
Typical carbon monoxide gas problems are summarized here:
(a) Equipment problems, due to defects, poor maintenance,
damaged and cracked heat exchangers
(b) Collapsed or blocked chimneys or flues, dislodged,
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 conditions
(d) Improper installation or operation of equipment, chimney or
vents
(e) Air tightness of house envelop/inadequate combustion of
air
(f)
Inadequate exhaust of space heaters or appliances
(g) Exhaust
ventilation/fireplace competing for 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.
POSSIBLE SYMPTOMS OF CARBON MONOXIDE
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 following symptoms are related to CO poisoning and should be
discussed with all members of the household so that you know what
to look for:
(a) Extreme exposure: unconsciousness, convulsions,
cardiorespiratory failure, death
(b) Medium exposure: severe throbbing headache, drowsiness,
confusion, vomiting, fast heart rate
(c) Mild exposure: slight headache, nausea, fatigue (similar to
"flu-like" symptoms)
Young children and household pets may be the first affected.
Exposure during sleep is particularly dangerous, because the victim
usually does not awaken.
LOCATIONS TO INSTALL YOUR ETECTOR
Since CO gas moves freely in the air, the suggested location is in or
as near as possible to sleeping areas of the home. The human body
is most vulnerable to the effects of CO gas during sleeping hours.
For maximum protection, a CO detector should be located outside
primary sleeping areas or on each level of your home. In the figure
below, are suggested locations in the home. The electronic sensor
detects carbon monoxide, measures the concentration and sounds a
loud alarm before a potentially harmful level is reached.
Do not place the detector in the following areas:
(a) Where the temperature may drop below 40oF (4.4oC) or
exceed 100oF (37.8oC)
(b) Near paint thinner fumes
(c) Within 5 feet (1.5 meter) of open flame appliances such as
furnaces, stoves and fireplaces
(d) In exhaust streams from gas engines, vents, flues or chimneys
(e) Do not place in close proximity to an automobile exhaust pipe;
this will damage the detector
WIRING DIAGRAM FOR NB983CO SERIES
CARBON MONOXIDE DETECTORS
Figure 2 shows the wiring diagram for NB983CO series carbon
monoxide detectors.
INSTALLING THE BASE OF DETECTOR
(1) All the wires in the base compartment should be flattened and
L
C
CONTROL
PANEL
POWER
2 3
5
6
2 3
5 6
E
ND OF DE
V
ICE
FIRST DETECTOR BASE
LAST DETECTOR
BASE
P
P
