CARBON MONOXIDE DETECTOR
ZETA 200 CO
USER’S MANUAL
PLEASE READ THESE INSTRUCTIONS BEFORE INSTALLING OPERATING
THE CO ALARM
INTRODUCTION
This 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.
(2) Monitoring for carbon monoxide in a continuous manner.
(3) Giving a loud alarm (85 dB) when it detects a buildup of carbon
monoxide.
(4) Having a Test button for you to test the detector anytime.
(5) Self-testing its operative function continuously.
(6) Complying the requirements of EN Standard 50291.
(7) 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, cardio
respiratory 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 DETECTOR
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
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(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
INSTALLING YOUR DETECTOR
The Carbon Monoxide Detector is easy to install to protect you and
your family in your home, cottage, cabin and office.
The product can be installed flush mounted set into a wall/partition.
You will need the following tools to install the unit:
Drill with a 6mm bit
Phillips screwdrivers
The product is designed with the cables emerging from the bottom
of the unit.
Flush mounting
In order to flush mount the unit a suitable hole will needs to be cut
in the wall. This will need to be 150mm wide by 90mm high and a
minimum of 40mm deep. The power supply cabling and
connections for the Remote LED and relay (if used) will need to
come from behind or inside the wall. This will normally be via
conduit in solid wall or from inside the outer skin of a partition wall.
Once mounted in the hole in the wall, the unit can be secured to the
wall using the two screws provided (and if needed the raw plugs)
through the two holes either side of the base.
Figure 1 – Flush Mounting
Before connecting power ensure you have selected the correct
connection for either mains or DC installation, checking the label on
the product.
Feed the cables for the power (and, if used, the relay and Remote
LED) up from the underside of the base. The cables are then
secured using the cable clamps provide. The cable clamp can be
reversed to accommodate larger cables as shown.
Figure 2 Cable Clamps
Mains Powered Connect
CAUTION: ISOLATE THE MAINS BEFORE STARTING WORK
The detector should be wired to the mains supply via an
unswitched fused outlet to BS5733. The fuse should be rated at 3
Amps. The brown or red wire should be connected to the live
terminal shown L below and the blue or black wire should be
connected to the neutral terminal shown N. The earth terminal is
not required.
Figure 3 AC Supply Wiring
DC Powered Connect
The detector should be wired to the 12V or 24V supply with a fuse
rated at 3 Amps. The red wire should be connected to the terminal
shown below with a + (plus) sign and the black wire to the negative
terminal shown with a – (minus). Reversing the connections may
damage the product.
In caravans and motorhomes the detector should be connected to
the battery supply via the main switch. This will ensure operation
when the caravan is occupied. Permanent connection for prolonged
periods may cause a flat battery if the battery remains uncharged
Figure 4 DC Supply Wiring
HOW TO USE THE RELAY FACILITY
The relay provides a means of signalling an alarm condition to an
external warning device such as control panel or remote audible
buzzer. It can also be used to shut off a gas valve in the event of a
detected leak. The relay is a single pole changeover type that
allows contacts to be either open or closed when gas is detected.
Relay contacts can be wired in parallel to provide an alarm signal
when any of the units connected detect gas.
For the mains powered versions the relay contact is specified up to
240V @ 6A ac and for DC powered versions its is specified at 24V
@ 6A
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