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Installation
• These smoke alarms must be installed by a registered electrician.
• Due to "noise" from electromagnetic interference, no more than 24 of these smoke
alarms may be interconnected.
• There are three terminals in the supply terminal block, marked A, S, N. It is important
that the alarm be wired correctly to ensure correct operation. Incorrect wiring to the
Smoke Alarm will damage the unit and void the warranty.
• A total maximum of 250 meters (820 feet) of wire can be used in interconnecting
smoke alarms.
• All final sub-circuit conductors including the signal conductor must be a minimum
size of 1mm2 with 250V grade insulation.
• Interconnected Smoke Alarms must be connected to the same final subcircuit.
• Do not use any wire that could later be confused with the normal house wires for the
interconnect wire. For example, green/yellow earth wire.
• Do not connect AC power wires to S interconnect terminal. These will damage smoke
alarms.
• Do not connect the S interconnect wire to any device, except the S interconnect
terminal of the smoke alarm. Otherwise, the smoke alarm will be damaged.
• Smoke alarms should be interconnected only within the confines of a single family
living unit. If smoke alarms are interconnected between different units, there may be
excessive nuisance alarms. Residents may not be aware that smoke alarms are being
tested or that it is a nuisance alarm caused by cooking etc.
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