Secutron MR-2306-DDR, MR-2320 Series, MR-2320-R, MR-2320-W, MR-2320-DR Addendum For Installation Instructions

MR-2300 and MR-2320 Series

17"

22.5"

Adhere trim ring to

wall surface around

the MR-2303 and

MR-2306 backboxes.

PLACE MR-2306-FT 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 -fl ush mounti ng
using the flus h tri m ri ng

1" is the minimum depth
above the wal l required
for semi -fl ush mounting
using the flus h tri m ri ng

Mounting Holes for
Surface Mounting

Mounting Holes for
Surface Mounting

Addendum for New Chassis

Installation Instructions

Mechanical Installation for the MR-2300 and MR-2320 Series Backboxes and
Chassis

All the MR-2300 Series Fire Alarm Panels including the MR-2320 Series have a new chassis. See the following diagrams;
Figure 1 for the small panel versions of all the series and Figure 2 for the larger panel version of the MR-2300 series.

Figure 1: Backbox and Trim Ring Dimensions for Models MR-2303-DR/-DDR,

MR-2306-DDR, and MR-2320-R/-W/-DR/-DW

LT- 1087SEC Rev. 0 Nov 2010 Page 1 of 2

Figure 2: Backbox and Trim Ring Dimensions for Models MR-2308-LR/-LDR and

Mounting Holes

Mounting Holes

11”

20.5”

1.5”

14.5”

14.5”

26”

4”

4.5”

17”

28.5”

Adhere trimring to

wall surface around

the MR-2308 and

MR-2312 backboxes.

PLACE MR-2312-FT TRIM RING OVER BACKBOX

TRIM RING

WALL

WOOD OR

METAL STUD

BACKBOX

MR-2312-LDR/-DDR

Mounting the Boards to the Chassis

The main board is mounted to the chassis and is shipped out this way. All adder modules are mounted in the same manner
as explained in the respective fire alarm manual.

Figure 3: Cross-Section of Flush Mounted Backbox

Wiring

All wiring is as explained in the respective fire alarm panel manual.

LT- 1087SEC Rev. 0 Nov 2010 Page 2 of 2