How To Distinguish Between Co Alarm & Smoke Alarm Warnings - Ei Electronics Ei262 Leaflet

5.2.5. If the Alarm fails to operate when the Test/Hush button is pressed, switch off the mains supply at
the distribution fuse board and remove unit from mounting plate for 3 minutes. Put unit back on mounting
plate. Reconnect the mains and test again. (This procedure resets the microprocessor in the unit).
5.2.6. If the unit beeps every 40 seconds (without a light flash) it means the battery is depleted. Connect
mains power (ensure green light is on) to allow cells to charge.
5.2.7. Once a year check the rechargeable battery by switching off the mains supply and pressing the
Test /Hush button for 10 seconds. The horn should sound loudly. Reconnect the mains supply.
If the Alarm fails any of the above tests it must be replaced immediately (see section 10 "GETTING
YOUR CO ALARM SERVICED").
5.2.8. TESTING WITH CARBON MONOXIDE
The Test/Hush button on the Alarm is the normal way of testing the Alarm. However, the Alarm can be tested with CO by using
one of the kits that comes with CO either in a glass phial or aerosol can. Follow the instructions on the kit. It is best if possible
to inject the CO gas into the gas entry holes (see Figure 4).
The alarm checks for CO every 4 seconds and as soon as it detects CO, it flashes the red light (as per Table B on page 7) to
confirm that is detecting CO gas.
Testing with CO does not activate the memory function unless a high level of CO remains in the sensor for a few minutes.
(This can be checked by pressing the Test/Hush button. If the red light flashes continuously the memory has been activated -
therefore, hold the Test/Hush button for 20 seconds until the red light stops flashing as the memory resets).
6. HOW TO DISTINGUISH BETWEEN CO ALARM & SMOKE ALARM WARNINGS
The CO Alarm has a distinctive on-off sound of 3 pulses followed by a pause, as compared with a typical
Smoke/Heat Alarm which has a rapid pulsing sound.
In addition, when your CO Alarm is sounding due to sensing CO, the red alarm light on the cover will
be flashing.
Testing both your CO Alarms and Smoke/Heat Alarms weekly will help you and your family to clearly
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