INSTRUCTION MANUAL
A131 High Level Audible Warning System / Battery backup
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
Tel: +44 (0)208 743 8880
www.e2s.com
Fax: +44 (0)208 740 4200
Document No. D5423-D5426-IS_Issue_B 12-02-13
Sheet
2
of
5
4) Cable
Selection
When selecting the cable size consideration must
be given to the input current that the control unit
draws (see table above) and the length of the
cable run.
5) Earthing
AC powered control units must be connected to a
good quality earth. The unit is provided with
internal earthing terminal which is located next to
the power terminal (See figure 2).
6) Horn Location and Mounting
The location of the horn should be made with due
regard to the area over which the warning signal
must be audible. The horn should only be fixed to
services that can carry the weight of the unit.
The horn should be securely bolted to a suitable
surface using the stainless steel U shaped
mounting bracket. The angle can then be
adjusted in the direction that the sound is
primarily required to cover. This can be achieved
by loosening the two large bracket bolts in the
side of the unit, which allow adjustment. On
completion of the installation the two large
bracket adjustment bolts on the side of the unit
must be fully tightened to ensure that the unit
cannot move in service.
7) Control Unit Location and Mounting
The location of the control unit will depend on the
level of customer accessibility required. The
control unit should only be fixed to services that
can carry the weight of the unit.
Battery checking and maintenance should also
be taken into consideration when selecting a
mounting position. The control unit is mounted via
the cabinets internal mounting positions using 4
off suitable screws.
The overall dimensions of this cabinet are
400mm x 500mm x 210mm, see installation
figure 1-1.
8) Battery
Installation
To prevent any problems during transportation,
the system does not have the battery connected.
Once the control unit has been installed the
battery should be connected. The loose red cable
shown should be connected to the battery
terminal 4 as shown.
The battery should be routinely checked to
ensure maximum battery life and correct
charging.
Fig 1-1 Control Unit mounting Installation
1 2 3 4
