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This can set fire to the Alarm and damage the house.
We do not recommend testing with smoke or heat as the
results can be misleading unless special apparatus is used.
Check for any sign of contamination such as cobwebs or
dust and clean the alarm as described below if necessary.
Interconnected alarms
Test the first unit by pressing the button. All the detectors
should alarm within about 5 seconds of the first horn
sounding and the red light on the first unit only will flash
once a second. The relay contacts should change over
within 6 seconds after the horns sound. Check all the other
units similarly. (Note: Ionisation and Heat alarms signal to
other interconnected alarms, about 4 seconds after their
own horn sounds. Optical alarms signal within about a
second).
Checking Battery Back-up
The Alarm automatically monitors the battery every 40
seconds to ensure that it is satisfactory. If it is depleted it will
give a short beep every 40 seconds.
Before replacing the battery, check that the beeps are not
due to one of the following:
(i) Battery snaps not connected properly.
(ii) On the Optical Smoke Alarms only (Ei186) if the unit
beeps and the red light does not flash at the same time it
indicates a problem with the smoke chamber – see
Cleaning the Smoke Alarm section below:
If the beeps have continued for over 20 minutes (and the
other causes of beeps have been ruled out – see below) the
battery must be replaced.
(iii) Switch off the panel voltage supply and remove the unit
as shown in fig 1a. CAUTION: Do not attempt to remove
the Alarm without first releasing the tamper clip. Remove
depleted battery and replace with one of the specified 9V
alkaline batteries. The alarm cannot be replaced on the
mounting plate unless a battery is installed. After replacing
the battery, slide on to the mounting plate and then press
the test button and ensure horn sounds loudly before you
turn on the panel supply. Note: Only use the specified
Alkaline batteries shown on the base label (Duracell
MN1604, Eveready 522 or Energizer 6LR61). We
recommend that the "use by date" on the battery should still
have at least 2 years to go. Older batteries will give beeps
prematurely.
We recommend that the battery is replaced each year for
optimum performance.
Please note: The ionisation and heat alarms (Ei181 &
Ei184) give two short beeps about a second apart at the
end of the hush period (i.e. about 10 minutes after test/hush
button has been pressed). These two beeps should not be
confused with low battery beeps.
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