Carbon Monoxide Alarm
Installation Instructions
P.1.
For models: SMAC-2
Main Features
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Long life electrochemical sensor
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Easy installation.
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Test / reset button
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Low battery warning
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Self test function
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Supplied with wall plugs & screws
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Cannot be fitted with battery missing
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Approved to EN50291-1:2010
This installation must be carried out by an electrician.
Please read these instructions carefully before installation.
Leave a copy for the user/maintenance engineer for future reference.
Specification
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Model: SMAC-2
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Power Source: 220-240V AC 50-60Hz, 9.6 Watts, with a
9V battery back-up (battery included).
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Battery back-up: 9V Alkaline battery PP3 (Gold Peak
1604A, Duracell MN1604, Energizer 1222, IEC 6LR61,
IEC6LF22).
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Battery back-up life: In the event of a break in the mains
supply the battery will give detector operation for 1 month
minimum.
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Operation current: <35mA operation (in alarm).
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Type of gas sensed: Carbon Monoxide.
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Sensor life: Up to 5 years
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Alarm response time: 50PPM (between 60 to 90min),
100ppm (between 10 to 40min), 300ppm (less than 3min).
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Operation temperature: -10°C ~ 40°C
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Ambient humidity: 10%-90%
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Sounder level: 85 Decibels at 1m
WHAT IS CARBON MONOXIDE
Carbon Monoxide (CO) is an insidious poison that is released
when fuels are burnt. It is a colourless, odorless, tasteless gas
and therefore very difficult to detect with the human senses.
CO kills hundreds of people each year and injures many
more. It binds to the hemoglobin in the blood and reduces
the amount of oxygen being circulated in the body. In high
concentrations, CO can kill in minutes.
CO is produced by the incomplete combustion of fuels such as
wood, charcoal, coal, heating oil, parraffin, petrol, natural
gas, propane, butane etc.
Common Sources of CO:
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Attached garages
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Oil and gas furnaces
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Wood stoves
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Barbecues
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Wood and gas fireplaces
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Gas appliances
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Portable generators
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Gas or kerosene heaters
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Clogged chimneys
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Cigarette smoke
LOCATING THE CO ALARM
Carbon Monoxide alarm is designed to detect the toxic
CO fumes that result from incomplete combustion, such as
those emitted from appliances, furnaces, fireplace and auto
exhaust.
Ideally, a CO alarm should be installed in every room
containing a fuel burning appliance. Additional apparatus
may be installed to ensure that adequate warning is given for
occupants in other rooms, by locating apparatus in:
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Remote rooms in which the occupant spend considerable time whilst awake and from which they may not be able to
hear an alarm from apparatus in another part of the premises, and
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Every sleeping room.
However, if there is a fuel burning appliance in more than one room and the number of CO alarm is limited, the following
points should be taken into consideration when deciding on the best location:
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A apparatus should be located in a room containing a flueless or open-flued appliance.
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If there is an appliance in a room where people spend most time, a apparatus should be placed in that room.
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If there is an appliance in a room where people sleep, a apparatus should be placed in that room.
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In a bedsit, the apparatus should be placed as far from the cooking appliances as possible but near to where the person
sleeps.
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If the appliance is in a room not normally used, such as a boiler room, the apparatus should be placed just outside the
room so that the alarm will be heard more easily.
CAUTION
This alarm will only indicate the presence of carbon monoxide gas at the sensor. Carbon Monoxide gas may be present
in other areas.
This carbon monoxide alarm is designed to detect carbon monoxide gas from ANY source of combustion. It is NOT
designed to detect smoke, fire or any other gas.
POSITIONING THE CO ALARM
Carbon Monoxide has a similar density to warm air and can be fitted in various locations.
Apparatus located in the same room as a fuel-burning appliance:
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If the apparatus is located on a wall, it should be located at a height greater than the height of any door or window but
at least 150mm from the ceiling. If the apparatus is mounted on a ceiling, it should be at least 300mm from any wall.
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The apparatus should be at a horizontal distance of between 1m and 3m from the potential source.
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If there is partition in a room, the apparatus should be located on the same side of the partition as the potential source.
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In rooms with sloped ceilings, the apparatus should be located at the high side of the room.
Apparatus located in sleeping rooms and in rooms remote from a fuel burning appliance:
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The apparatus should be located relatively close to the breathing zone of the occupants.
Areas to be avoided include the following:
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Situations where the temperature may drop below -10°C or exceed 40°C.
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In a damp or humid area.
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Any area where high levels of dusty, dirty or greasy emissions could contaminate or clog the sensor.
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Where the air flow to the apparatus would be obstructed by curtains or furniture.
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Next to a door or window or in the path of air discharged from a furnace / air conditioning vent or ceiling fan.
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Outside the building.
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Directly above a sink or cooker.
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In or below a cupboard.
The following conditions can result in transient CO situations in the home:
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Excessive spillage or reverse venting of fuel burning appliances caused by:
1.
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).
2.
Negative pressure differential resulting from the use of exhaust fans.
3.
Simultaneous operation of several fuel burning appliances competing for limited internal air.
4.
Vent pipe connection vibrating loose from clothes dryers, furnaces, or water heaters.
5.
Obstructions in or unconventional vent pipe designs which amplify the above situations.
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Extended operation of unvented fuel burning devices (range, oven, fireplace, etc.)
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Temperature inversions which can trap exhaust gases near the ground.
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Car idling in an open or closed attached garage, or near a home.
WARNING
This carbon monoxide alarm is designed for indoor use only. Do not expose to rain or moisture. It will not protect against
the risk of carbon monoxide poisoning when the battery has drained.
Do not open or tamper with the alarm as this could cause malfunction.
Installation of the apparatus should not be used as a substitute for proper installation, use and maintain of fuel burning
appliances including appropriate ventilation and exhaust system.
INSTALLING THE CO ALARM
WARNING
This apparatus is mains powered and requires wiring by a qualified electrician in accordance with the current IEE
Regulations for Electrical Installations (BS7671).
The circuit used to power the apparatus must be a dedicated permanent supply that cannot be switched off accidently by
the normal user. Before installing ensure the electrical supply is isolated.
WARNING: To prevent injury, this apparatus must be securely attached to the wall / ceiling in accordance with the
installation instructions.
Wall mount installation:
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Disconnect the AC main power from the circuit that is going to be used.
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Having established the mounting location ensure that there is no electrical wiring or pipe work in the area adjacent to
the mounting surface.
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Mark the two mounting hole locations.
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Drill holes in the positions marked.
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Insert wall plugs into the drilled holes.
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Screw mounting bracket to mounting surface. DO NOT OVER TIGHTEN.
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Unlock the apparatus unit from the base by pushing up the temporary latch with a screw driver.
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Strip the Live / Neutral wires.
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Connect the wires to the correct terminals (on the mounting plate) to incoming supply.
The alarm must be wired in accordance with National wiring codes.
LIVE: connect to house wires coloured Brown or maked with L.
NEUTRAL: connect to house wires coloured Blue or maked with N.
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Insert a 9V battery firmly into battery compartment on the rear of the apparatus. NOTE POLARITY OF
CONNECTIONS. NOTE - for the safety of the end user the CO alarm cannot be fitted without its battery.
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Assemble the alarm onto the mounting plate.
OPERATING YOUR CO ALARM
Normal Operation
After battery installation, the green LED will flash five times. Then the unit will enter into the normal operation mode.
When no carbon monoxide is present, the green light will flash approximately once per minute and is an indication that
your alarm is powered and functional.
During normal operation the CO alarm perform a self-check test every minute.
IMPORTANT
After installation, test your alarm (see paragraph “Test your CO alarm”)
Alarm Condition
When the apparatus detects dangerous levels of CO gas, it will give an alarm signal. The red LED will flash and the
buzzer will chirp 6 times simultaneously every second.
After 30 minutes, when the apparatus remains alarming, the red LED will flash and the buzzer will chirp 6 times
simultaneously every minute. During alarming, the green LED will flash once every 10 seconds.
CO LEVEL (PPM)
RESPONSE TIME (MIN)
50 60-90
100
10-40
300
<3
WARNING
This product may not alarm at low carbon monoxide levels. Individuals with medical problems may consider using
warning devices which provide audible signals for carbon monoxide concentrations under 30 PPM.
Low Battery Signal
In case the battery is at the end of its life, the apparatus will sound a short chirp with a yellow LED flash simultaneously
in every minute. The battery should be replaced immediately. This low voltage warning will be given for at least 30 days.
Note: Constant exposure to high or low humidity may reduce battery efficiency.
Unit Malfunction
Your CO alarm performs an internal self-diagnosis every minute to make sure that it is functioning properly. In the
rare event that your alarm malfunctions, the apparatus will sound a double short chirp and the yellow LED flash
simultaneously in every minute. In this case the alarm must be replaced.
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.
TESTING YOUR CO ALARM
It is recommended that you test your CO alarm once a month to ensure the alarm is working correctly.
