When the CO Alarm detects abnormal levels of CO (above 50ppm CO) the red
light starts to flash immediately and the horn will sound within 90 minutes. At
higher levels of CO the alarm will turn on sooner (see table B - page 8).
The CO Alarm will automatically reset once the CO has cleared. Pressing the
test/hush button resets the CO Alarm immediately (below 300ppm CO). If CO is
still present the red light and horn will turn on again after about 4 minutes.
The CO Alarm is no substitute for keeping chimneys and flues clear and in good
condition, and all of your appliances serviced regularly according to the
manufacturer’s instructions.
Do not fit alarm until all building work is completed to avoid contamination.
2. WHAT TO DO WHEN THE ALARM SOUNDS
(1) Open the doors and windows to ventilate the area.
(2) Turn off all fuel appliances where possible and stop using them. (The alarm
can be silenced immediately by pushing the test/hush button).
(3) Evacuate the property leaving the doors and windows open.
(4) Get medical help immediately for anyone suffering the effects of Carbon
Monoxide poisoning (headache, nausea), and advise that Carbon Monoxide
poisoning is suspected.
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