Bosch LTC 7420C, Руководство по установке

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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.
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.
Figure 4 Bracket Clip Fitting
3. Tighten the four (4) bracket screws located in
each corner (FIGURE 5).
Figure 5 Bracket Securing Screws
Installation EN
© 2003 Bosch Security Systems Page 8 of 16
Suspension
Bars
Ceiling Base
Bracket
Ceiling
Tile
x 4
x 4