LT- 1087 Rev. 0 Nov 2010 Page 1 of 2
FX-350, FA-300 and FR-320 Series
Addendum for New Chassis
Installation Instructions
Mechanical Installation for the FX-350, FA-300 and FR-320 Series Backboxes
and Chassis
All the FX-350, FA-300 Series Fire Alarm Panels including the FR-320 Series have a new chassis. See the following dia-
grams; Figure 1 for the small panel versions of all the series and Figure 2 for the larger panel version of the FX-350 and
FA-300 series.
Figure 1: Backbox and Trim Ring Dimensions for Models FA-300-3DR/-3DDR,
FA-300-6DDR, FX-350-60-DR and FR-320-R/-W, FR-320-DR/-DW
17"
22.5"
Adhere trim ring to
wall surface around
the FA-300 or FR-320
backbox.
PLACE FA-300-TRB TRIM RING OVER BACKBOX
14.5"
4
.
5
"
11"
20.0"
1.5"
4.0"
14.5"
3.5"
1"
3.5" is the maximum depth
for semi-flush mounting
using the flush trim ring
1" is the minimum depth
above the wall required
for semi-flush mounting
using the flush trim ring
Mounting Holes for
Surface Mounting
Mounting Holes for
Surface Mounting
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