Location and positioning
Warning: The installation of this CO alarm should not be used as a substitute for proper instal-
lation, use and maintenance of fuel burning appliances including appropriate ventilation and
exhaust systems.
Ideally a CO alarm should be installed in every bedroom, in every room containing a fuel
burning appliance and in remote rooms where occupants spend a considerable amount of
time. However, if the number of CO alarms to be fitted is limited, the following points should
be considered when deciding where best to fit the alarm(s):
If there is an appliance in a room where people sleep, place a CO alarm in this room.
Locate a CO alarm in a room containing a flueless or open-flued appliance.
Locate a CO alarm in a room where the occupant(s) spend most of their time.
In a bedsit, the CO alarm should be placed as far away from the cooking appliance as possi-
ble, but near to where the person sleeps.
If the appliance is in a room not normally used, such as a boiler room, the CO alarm should
be placed just outside the room so that the alarm will be heard more easily.
Unsuitable Locations
Do not place the CO alarm in any of the following areas:
In the immediate vicinity of a cooking appliance (keep it at least 1 m horizontally from it).
Outside the building.
In an enclosed space (e.g. in or below a cupboard).
In a damp or humid area.
Directly above a sink or cooker.
Next to a door, window, air vent or anywhere that it would be affected by draughts.
Next to an extractor fan.
33
Over heat sources such as radiators or hot air vents.
Where it would be obstructed, e.g. by curtains or furniture.
In an area where the temperature could drop below -10°C or rise above 40°C.
Where dirt or dust could block the sensor.
Where it could be easily knocked or damaged, or where it could be accidentally turned off
or removed.
In a bathroom or other areas where the CO alarm may be exposed to water splashes, drip-
ping or condensation (e.g. above an electric kettle).
Near paint, thinners, solvent fumes or air fresheners.
A room with a fuel burning appliance, see Figure 1
If it is mounted on a wall, it should be located at a height greater than the height of any door
or window but still be at least 150 mm from the ceiling.
If it is mounted on the ceiling it should be at least 300 mm from any wall or light fitting.
The CO alarm should be a horizontal distance of between 1 m and 3 m from the potential CO
source.
If there is a partition in the room, the CO alarm should be located on the same side of
the partition as the potential source.
In rooms with sloped ceilings, the CO alarm should be located at the high side of the room,
see Figure 2.
A bedroom or a room remote from a fuel burning appliance, see Figure 3
Mount the CO alarm relatively close to the breathing zone of the occupants. Whatever position
you choose, make sure it is possible to view the three LED indicators, when in the vicinity of the
alarm.
Warning: Do not use the CO alarm on an intermittent basis, or as a portable detector for the
leakage of combustion products from fuel burning appliances or chimneys.
EN
34