Wall Mount Applications - Johnson Controls IOM3731 Installation Manual

Figure 2: Controller mounting positions
DIN rail mount applications
Mounting the controller horizontal on 35 mm DIN rail is
the preferred mounting method.
To mount a field controller 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 controller mounts in the horizontal
position shown in Figure 2.
2. Pull the bottom mounting clips outward from the
controller to the extended position as shown in
Figure 3.
3. Hang the controller on the DIN rail by the hooks
at the top of the (DIN rail) channel on the back of
the controller (Figure 3), and position the controller
snugly against the DIN rail.
4. Push the bottom mounting clip inward (up) to secure
the controller on the DIN rail.
To remove the controller from the DIN rail, pull the bot-
tom mounting clip out to the extended position and care-
fully lift the controller off the DIN rail.

Wall mount applications

To mount a field controller 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 3.
2. Mark the three mounting hole locations on the wall
using the dimensions in Figure 3 and one of the
mount positions shown in Figure 2. Or, hold the
controller up to the wall or surface in a proper mount
position and mark the hole locations through the
mounting clips.
3. Drill holes in the wall or surface and insert
appropriate wall anchors in all of the mounting holes
(if necessary).
4. Hold the controller in place, and insert the screws
through the mounting clips and into the holes (or
anchors). Carefully tighten all of the screws.
Important: Do not overtighten the mounting
screws. Overtightening the screws may damage the
mounting clips.
Mounting features and dimensions
Figure 3: Back of Controller showing extended
mounting clips, DIN rail channel, and mounting
dimensions, mm (in.)
Wiring
Risk of Electric Shock
Disconnect or isolate all power supplies before mak-
ing electrical connections. More than one disconnect
or isolation may be required to completely de-energize
equipment. Contact with components carrying haz-
ardous voltage can cause electric shock and may re-
sult in severe personal injury or death.
Avertissement
Risque de décharge électrique
Débrancher ou isoler toute alimentation avant de
réaliser un branchement électrique. Plusieurs iso-
lations et débranchements sont peut-être néces-
saires pour -couper entièrement l'alimentation de
l'équipement. Tout contact avec des composants con-
ducteurs de tensions dangereuses risque d'entraîner
une décharge électrique et de provoquer des
blessures graves, voire mortelles.
IOM3731 Input/Output Module Installation Guide
Warning
3