Specifications - Simplex 4100ES Installation Manual

5.5 Step 1. Mounting Back Boxes
Three different sizes of system back boxes are available, accommodating one, two, or three electronics bays. These back boxes are shipped
in large containers separate from the system electronics. If system electronics containers are shipped with the back box containers, store
the system electronics containers in a safe, clean, and dry location until the back box installation is completed, and you are ready to install
the system electronic bays.
Note:
• Conductor entrance and routing restrictions apply to power-limited systems only.
• All back box PIDs are listed in
5.5.1

Specifications

Table 4 lists the specifications for the back boxes.
PID Number Description
Size
2975-9410/2975-9407 1 Bay
/
2975-9438
2975-9411/2975-9408 2 Bay
/
2975-9439
2975-9412/2975-9409 3 Bay
/
2975-9440
Make sure that you have the necessary hardware before you begin the installation procedure. The Back Box Bay Mounting Hardware Kit
should have all of the items listed in Table 5.
Part Number Description
268-010 Lockwasher (No. 8)
490-011 Washer
426-033 Screw (No. 8 Torx, 5/16 in.)
5.5.2 Mounting the Back Boxes
Mount the back box as shown in Figure 11. Use the holes in the back box to secure it to the wall.
• For mounting to a wooden wall structure, the back box must be attached with four 3/8-inch-diameter x 1-½-inch-long (9.5 mm x
38 mm) fasteners and four 3/8-inch-diameter (9.5 mm) washers.
• For surface mounting, secure the box to the wall using the tear-drop mounting holes on the back surface.
• For semi-flush mounting, secure the box to the wall studs using the knockouts on the sides of the box. Note that the front surface
of the back box must protrude at least ½ inch (sheet metal door) or 3 inches (plastic door) from the finished wall surface.
Important:
Power-limited systems have back box entrance and routing restrictions for field wiring. Do not locate power-limited wiring in the shaded
areas of the back box shown in Figure 11. These areas are reserved for non power-limited circuitry such as AC power, batteries, and the
city connection.
page 37
Introduction to the 4100ES Fire Alarm
Table 4: Back Box Specifications
Height
Weight Box Trim
55 lb. 20-¾ in. 23-½ in.
(25 kg) (527 mm) (597 mm)
125 lb. 36-¼ in. 39-1/8 in.
(57 kg) (921 mm) (994 mm)
185 lb. 52-1/8 in. 55 in.
(84 kg) (1,324 mm) (1,397 mm)
Table 5: Contents of the Back Box Bay Mounting Hardware Kit
4100ES Fire Alarm System Installation Guide
System.
Width
Door Box
26-3/8 in. 26-3/8 in.
(670 mm) (670 mm)
26-3/8 in. 25-¾ in.
(670 mm) (654 mm)
26-3/8 in. 25-¾ in.
(670 mm) (654 mm)
Quantity Per Back Box
1-Bay Box 2-Bay Box
4 8
4 8
4 8
Rough Opening
Height Width
21-¼ in. 26 ¼ in.
(540 mm) (667 mm)
36-¾ in. 26 ¼ in.
(933 mm) (667 mm)
52 5/8 in. 26 ¼ in.
(1,337 mm) (667 mm)
3-Bay Box
12
12
12
574-848 Rev. BQ