C-TEC AVAC Installation And Maintenance Manual page 11

Planning the cable layout in the enclosure
All low voltage wiring coming into the enclosure should be segregated away from the 100 V
loudspeaker lines and incoming mains voltages. Refer to the diagram below for guidance and
important information on how to remove the enclosure's knockouts. Always ensure that if a
knock-out is removed, the hole is filled with a good quality cable gland. Any unused knock-
outs must be securely blanked off.
Location of knockouts for cable entry and knockout removal details
Fixing the base to the wall
Using the five mounting holes provided (see diagram below), fix the base securely onto/into
the wall. The mounting holes are suitable for use with No.8-10 or 4-5mm countersunk screws.
Assess the condition and construction of the wall and use a suitable screw fixing.
Any dust or swarf created during the fixing process must be kept out of the enclosure and
great care must be taken not to damage any wiring or components.
Internal view of the back box with PCBs removed / side view for flush mounting
AVAC Installation and Maintenance Manual • Approved Document No. DAU000040 Rev 6 • Page 11
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AVAC VOICE ALARM SYSTEM
Bring mains into the enclosure
through one of these knockouts
CAUTION
If mounting multiple
AVAC masters (or slaves)
next to each other, take
care to leave a gap of at
least 80 mm between
each of their bases to
allow their lids to swing