Materials And Special Tools Needed; Din Rail Mount Applications; Wall Mount Applications - Johnson Controls IOM3711 Installation Instructions Manual

Materials and Special Tools Needed

• three fasteners appropriate for the mounting surface
(M4 screws or #8 screws)
• one 20 cm (8 in.) or longer piece of 35 mm DIN rail
and appropriate hardware for DIN rail mount (only)
• small straight-blade screwdriver for securing wires in
the terminal blocks
Mounting
Observe these guidelines when mounting an expansion
module:
• Ensure the mounting surface can support the
expansion module, DIN rail, and any user-supplied
enclosure.
• Mount the expansion module horizontally on 35 mm
DIN rail whenever possible.
• Mount the expansion module in the proper mounting
position (Figure 1).
• Mount the expansion module on a hard, even surface
whenever possible in wall-mount applications.
• Use shims or washers to mount the expansion module
securely and evenly on the mounting surface.
• Mount the expansion module in an area free of
corrosive vapors and observe the Ambient Conditions
requirements in Table
• Provide for sufficient space around the expansion
module for cable and wire connections for easy cover
removal and good ventilation through the expansion
module (50 mm [2 in.] minimum on the top, bottom,
and front of the expansion module).
• Do not mount the expansion module on surfaces
prone to vibration, such as duct work.
• Do not mount the expansion module in areas where
electromagnetic emissions from other devices or
wiring can interfere with expansion module
communication.
Observe these additional guidelines when mounting a
expansion module in a panel or enclosure:
• Mount the expansion module so that the enclosure
walls do not obstruct cover removal or ventilation
through the expansion module.
• Mount the expansion module so that the power
transformer and other devices do not radiate
excessive heat to the expansion module.
• Do not install the expansion module in an airtight
enclosure.
IOM3711 Input/Output Module Installation Instructions
9.
Figure 1: Expansion Module Mounting Positions

DIN Rail Mount Applications

Mounting the expansion module horizontal on 35 mm
DIN rail is the preferred mounting method.
To mount a expansion module on 35 mm DIN rail:
1. Securely mount a 20 cm (8 in.) or longer section of
35 mm DIN rail horizontal and centered in the desired
space so that the expansion module mounts in the
horizontal position shown in
2. Pull the two bottom mounting clips outward from the
expansion module to the extended position
2).
3. Hang the expansion module on the DIN rail by the
hooks at the top of the (DIN rail) channel on the back
of the expansion module
expansion module snugly against the DIN rail.
4. Push the bottom mounting clips inward (up) to secure
the expansion module on the DIN rail.
To remove the expansion module from the DIN rail,
pull the bottom mounting clips out to the extended
position and carefully lift the expansion module off
the DIN rail.

Wall Mount Applications

To mount a expansion module directly on a wall or other
flat vertical surface:
1. Pull the two bottom mounting clips outward and
ensure they are locked in the extended position as
shown in Figure 2.
2. Mark the mounting hole locations on the wall using
the dimensions in Figure 2
positions shown in Figure
module up to the wall or surface in a proper mount
position and mark the hole locations through the
mounting clips.
Figure 1.
(Figure
(Figure 2), and position the
and one of the mount
1. Or hold the expansion
2