Specifications

SMOKE & HEAT ALARMS
Frequently Asked Questions
10
False alarms are usually a result of incorrect siting of the Smoke
Alarm, by contamination as a result of building/redecoration
operation, or poor levels of maintenance. For instance, if Ionisation
alarms are sited too close to a Kitchen, false alarm will often result
due to invisible cooking fumes reaching the alarm. Optical alarms
are liable to contamination from dust and fibres, often associated
with building work being undertaken without the alarms being
properly covered. The 140, 150 and 160 series smoke alarms are
supplied with a ‘hush button’ that can be pressed to desensitise
them to allow time for the source of the problem to be investigated.
Use of the ‘hush button’ will only silence the alarm for 8 - 10 minutes
after which the alarm will automatically reset. If the cause of the
false alarm is contamination, the only method of permanently
silencing the alarm is to remove the contamination source. This may
not be possible without removal and cleaning of the alarm itself. It
can be difficult to reach the hush button in some instances,
particularly for the elderly and infirm, so the installation of a wall
mounted System Remote Control Switch Ei1529RC should be
considered to overcome this problem.
The National Radiological Protection Board (NRPB), UK have carried
out extensive tests on Ei professional Ionisation Smoke Alarms and
have concluded that they are radiologically safe. They estimate that
we recieve 10,000 times as much radiation from our surroundings as
we would from an ionisation alarm in normal use.
The early 150 series alarms contained a NiCad battery and some may
now be reaching their end of life. The Cadmium contained within the
battery is a restricted substance under The Batteries and
Accumulators Regulations 1994 and cannot be disposed of in normal
waste. Aico Ltd and Ei Electronics take their responsibilities to the
environment seriously, and will accept redundant Ei product back for
recycling/disposal. The Ei151TL, Ei156TL, Ei156TLH, 140 and 160 series do
not contain NiCAd batteries, so are not subject to disposal restrictions.
These have been designed to be fully compatible with previous
Smoke and Heat Alarm models. Therefore if an old model 150 series
mains powered alarm should require replacement, the equivalent
model in the new 150 series can be easily and safely installed in it’s
place. All 140, 150 and 160 series alarms are also fully compatible
with each other.
30. How do I
stop nuisance
alarms?
31. What is the
radiation risk
from Ionisation
Smoke Alarms?
32. How do I
dispose of
redundant Ei
alarms that
contain a
NiCad
battery?
33. Are the Ei
alarms with
rechargeable
Lithium Cells
compatible
with previous
models?