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3. Unscrew the terminal cover screw.
4. Disconnect the wires from the terminal block and make safe, particularly if the
circuit is going to be turned on again after the CO Alarm is removed.
5. Unscrew from the wall.
Ei220EN only
1. Unplug the unit.
2. Slide cover up as shown in figure 7.
3. Unscrew from the wall.
8. LIMITATIONS OF CO ALARMS
(1) The CO Alarm will not work without mains power. The green power light must be
on at all times as far as possible.
(2) Carbon Monoxide must enter the unit for it to be detected. There may be Carbon
Monoxide in other areas of the house (e.g. downstairs, in a closed room etc). but not
in the vicinity of the CO Alarm. Doors, air draughts and obstructions can prevent the
CO reaching the Alarm. For these reasons we recommend CO Alarms are fitted both
near and in bedrooms, particularly if bedroom doors are closed at night. Additionally
install in rooms where members of the household spend much of their time, and in
rooms with potential sources of CO gas.
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