Installation; Environmental Air Space Information; Backbox Module; Ceiling Mounting - Bosch LTC 7490 Installation Instructions Manual

EN
4

INSTALLATION

Attention: Installation should be performed by
qualified service personnel only, in accordance with
the National Electrical Code or applicable local
codes.
4.1 Environmental Air Space
Information
The AutoDome system is suitable for use in environmental
air spaces or in an air handling plenum of a non-fire
resistant ceiling.

4.2 Backbox Module

The module consists of a Backbox and a Base Bracket
Assembly (FIGURE 2). Wiring is via one entry hole located
in the side of the backbox. If the conduit is not used, a
strain relief bushing is required, in accordance with the
National Electrical Code or applicable local codes.
Figure 2 AutoDome Assembly

4.3 Ceiling Mounting

4.3.1 BACKBOX MODULE MOUNTING IN

SUSPENDED CEILING

Mount the backbox in a suspended ceiling grid
using the existing ceiling tile as follows.
1. Locate the bracket assembly in the desired
location (FIGURE 3). Loosen the securing
screws (see FIGURE 5) on the base bracket
assembly enough to retain the suspension bars
during handling, but allowing for adjustment
during installation.
© 2003 Bosch Security Systems
Ceiling
Tile
Figure 3 Ceiling Mounting (Top View)
2. Snap the bar clips over the ceiling rails (FIGURE 4).
Slide the base plate to the desired position on top
of the tile.
x 4
Figure 4 Bracket Clip Fitting
3. Tighten the four (4) bracket screws located in
each corner (FIGURE 5).
Figure 5 Bracket Securing Screws
Installation
Suspension
Bars
Ceiling Base
Bracket
x 4
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