Ei Electronics Ei100B Instruction Leaflet page 9

10277-R12-9V-UC 29/9/09 7:49 AM Page 9
batteries, an alkaline battery and a general purpose battery.
1. Connect an alkaline battery (use only Duracell MN1604 or
Eveready 522) to the blue battery connector to power the
light. This battery when fresh will normally last 1 year in the
stand by mode and provide over 15 minutes of light when in
alarm. The Smoke Alarm is normally shipped with the alkaline
battery connected to facilitate the customer - this does not
deplete the battery.
2. Connect the general purpose battery to the black battery
connector to power the smoke alarm. This battery when fresh
will normally last over one year before it needs replacement.
Replace both batteries when the smoke alarm gives a short
chirp every minute or when the light looks dim during a button
test.
Use only batteries specified on the Smoke Alarm, the use of
other batteries could have a detrimental effect on smoke
alarm operation or light output.
(c) Interconnect Model Ei100C
A maximum of 12 interconnect Ei100C or Ei105C Smoke
Alarms may be wired together such that when one unit
senses smoke all other units sound a warning. This helps
ensure smoke alarms will be heard.
Warning: Do not interconnect to any other Smoke Alarms.
A maximum of 250 metres (820ft) of 18 AWG (0.82mm) wire
can be used, (maximum resistance between detectors 50
ohm). The units are interconnected by wiring all the terminals
marked 1 together, and all the terminals marked 2 together,
as shown in Figure 10. An opening should be made in the
label covering the wiring hole in the base, and the wires
routed into the unit as shown. Note that the wiring inside the
unit must be kept clear of the test button contacts, but must
not impede the air flow. Draughts from wiring openings,
conduit, or mounting boxes/holes, may blow smoke away from
the sensing chamber, making it insensitive. It is essential that
all such openings be closed by silicone sealant or similar.
You must press in and hold the test button for at least 4 to 5
seconds, as there is a time delay on some units.
After wiring together the Interconnect Smoke Alarms, test the
first unit by pressing the button. All the detectors should alarm
and the test button on the first unit will flash about once every
2 seconds. Check all the other units similarly.
When interconnected units are in alarm, the red flashing light
indicates the unit sensing smoke.
These Smoke Alarms should be interconnected only within
the confines of a single family living unit. If they are connected
between different units there may be excessive nuisance
alarms. Everybody may not be aware that they are being
tested or that it is a nuisance alarm caused by cooking etc.
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