Ei Electronics Ei261ENRC Manual page 12

5.1 INTERCONNECTING
With interconnected alarms, when one unit detects
CO all units alarm. All horns will sound but only units
detecting CO will flash their red lights.
A maximum of twelve Ei261ENRC / Ei261DENRC
CO Alarms may be interconnected along with an
Ei128RBU & Ei128COV relay module.
Alternatively, up to twelve Ei261ENRC / Ei261DENRC
CO Alarms and compatible Mains Powered Smoke/
Heat Alarms may be interconnected provided an
Ei1529RC Remote Control is used in the system.
Do not connect these Alarms to any other model
produced by another manufacturer, or to any
other model of Ei Alarm, apart from those listed
above. Doing this may damage the Alarms and could
result in a shock or fire hazard.
The interconnect wire (minimum 0.75mm
must be treated as if it was Live. It should be
insulated and sheathed.
MAINS
POWER
L N
Figure 7 - Interconnect Wiring Diagram
A maximum of 250 metres (820 ft) of wire can be
used (maximum resistance between detectors 50
Ohms). Connect as shown in Figure 7.
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 etc.
If interconnected CO and Smoke/Heat Alarms are
all sounding, the LOCATE switch on the Ei1529RC
Remote Control should be pressed. This will just
leave the alarm that triggered the system sounding.
This is very important to determine because the
actions to take in each situation are very different.
In the case of CO the premises should be fully
ventilated by opening doors and windows. The user
should call the gas supplier etc.
In the case of fire, doors and windows should be
closed to slow the spread of fire. The user should call
the fire brigade etc.
IC - INTERCONNECT
N - NEUTRAL
L - LIVE
IC
12
TO OTHER
ALARMS
AS REQUIRED
(see list above)
L N IC
cable)
2