Housegard SA411S, User Manual

Page: 8 / 60

8 - English
HOW TO INSTALL YOUR SMOKE ALARM
There are four terminals in the supply terminal block, marked L, E/LOOP, N, I. It is important that the alarm
is wired correctly to ensure correct operation. Incorrect wiring to the smoke alarm will damage the unit and
invalidate the warranty.
The terminal that is used to operate the smoke detector must be a separate permanent course that cannot
be turned off accidentally by the normal user. Before installing, make sure the circuit is secured and that the
power is turned off.
Use a conducted cable of at least 1 mm². Maximum cable length between 38 detectors is 250 meters.
All serial connected smoke detectors must be on the same phase throughout the circuit (L to L to L etc.).
The phases must not be crossed.
Do not connect the smoke detector to any other models than stated in this manual.
Terminal at back of mounting base are marked as follows: