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If your CO Alarm sounds, follow the instructions given at
the top of page 2.
When ventilation is provided by leaving the windows and doors
open, the CO build up may have dissipated by the time help ar-
rives and the alarm will have stopped sounding. Although your
problem may appear temporarily solved, it is crucial that the
source of the CO is determined and appropriate repairs made.
NEVER IGNORE THE ALARM
NOTE: The CO Alarm may sound if cigarette smoke is blown
into it or aerosols are released nearby.
EI
2.4 CO Alarm Memory (
205 only)
When the test button is pressed the horn sounds and the indica-
tor lights flash as follows:-
- Flashing Green Light if no CO is detected since reset or
power-up.
- Slow Flashing Red Light (every 2 seconds) if about 150ppm
CO has been detected since power-up.
- Fast Flashing Red Light (every ½ second) if about 350ppm
CO has been detected since power-up.
This tells you if the unit has detected CO in your absence and
helps to detect and locate leaks, monitor premises etc.
Reset Memory by holding down the test button for over 20 sec-
onds until the green light flashes (instead of the red). Cover the
horn with a cloth to muffle the loud alarm. Please note: The
memory will be reset when the battery is removed.
3.
Where to place CO Alarms
3.1 Suitable Locations
Ei Electronics
recommends that the advice of the Health &
Safety Exectutive (HSE) UK is followed as this is based on re-
search done at the BRE subsequent to the issueing of the BS
7860 : 1996 standard.
CO alarms should be located in the following areas - these are in
order of priorty:
- In rooms with flueless or open flued appliances
- In rooms where the occupant spends most time
- In bedrooms
5
Figure 1
*
Kitchen
*
If they contain or are near a fuel-burning appliance
3.2 Unsuitable Locations
Do not place the CO Alarm in any of the following areas.
(1) Within 1.85 metres (6 feet) of the appliance.
(2) Outside the building.
(3) In or below a cupboard.
(4) In a damp or humid area.
(5) Directly above a sink or cooker.
(6) Next to a door or window or anywhere that it would be af-
fected by draughts.
(7) Where it would be obstructed, e.g. by curtains or furniture.
(8) In an area where the temperature could drop below -5 C or
rise above 40 C.
(9) Where dirt or dust could block the sensor and stop it working.
(10) Where it could be easily knocked or damaged, or where it
could be accidentally turned off or removed.
(11) In a bathroom or where the CO alarm may be exposed to
water splashes or condensation (e.g. above an electric kettle).
(12) Near paint, thinners, solvent fumes or air fresheners.
6
3.3 Installation
The HSE, UK gives recommendations as follows:
*
Bedroom
If locating the CO Alarm in a room with an appliance
Sitting
- the alarm should be located between 1.85m and 3m horizon-
*
tally from the appliance.
Room
- the alarm should be located preferably on the ceiling. Ceiling
mounted detectors should be at least 300mm from any wall.
- if placed on a wall the CO Alarm should be as high as possible
(higher than doors and windows) but not within 150mm of the
ceiling.
If locating the CO Alarm in a room remote from the appliance
- the alarm should be located at a level similar to the breathing
zone of the occupant (typically in the living rooms at 1.5 to 2.0m
above floor level and in bedrooms at the height of the bed).
Once you have selected a suitable location, open the battery
compartment by sliding up the cover as shown in figure 2.
Install the batteries ensuring they are orientated correctly as
shown in the battery box. The green, red & amber lights will im-
mediately flash in sequence to show they are working - this is
normal.
Mark the position of the two mounting holes by using the unit as
a template. Drill two holes using a 6mm drill for the plastic plugs
supplied, (ensure you don't drill into the house wiring). Screw
the unit to the wall.
Check that the CO Alarm can be heard in all the bedrooms. If not
another CO Alarm should be located nearer the bedrooms.
7
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