Timeguard DCA2 - Manual (Page 8)

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iii Offer the back box up to the required position on the wall (refer to section
3.1). Feed the cables through the wiring slot in the back box (see fi g 4, ii).
Mark the positions of the two fi xing screws (No. 8 roundhead) using the back
box as a template (see fi g 4, ii). Remove the back box, drill and, if necessary
plug holes. Feed the cables through the wiring slot. Fix the back box to the
wall.
iv Make the necessary wire terminations (see fi g 2) and offer the external
intercom up to the back box. Tighten the fi xing screws as indicated (fi g 4, iii).
v Slide the two end covers inwards as shown until fully home (see fi g 4, iv).
4.2 Internal intercom
Choose a position which can be reached easily by all potential users. If one
person usually in one location will be the main user it may be considered
appropriate to locate the internal intercom within reach of that person.
Mark out two holes suitable for No. 8 roundhead screws 164mm vertically apart
at the required location on the wall (refer to section 3.1 and fi g 2). Drill and
plug the holes if necessary then screw the screws home leaving 5mm of the
shank exposed (see fi g 6) to enable keyhole fi xing points to slide behind the
screws.
Connect the two core lead from the external intercom according to fi g 2. Plug
the mains adaptor low voltage plug (see fi g 1) into the mains adaptor socket
(see fi g 2). Arrange the two cables in the cable channel on the back of the
internal intercom. Finally locate the internal intercom mounting holes on the
two fi xing screws, and slide the intercom downwards.
Fig 6
Wall surface
5mm
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