Johnson Controls FAC3611, Installation Manual

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• Mount the controller in the correct mounting position
(Figure 2).
• Whenever possible in wall-mount applications, mount
the controller on a hard, even surface.
• Use shims or washers to mount the controller securely
and evenly on the mounting surface.
• Mount the controller in an area free of corrosive vapors
and observe the ambient conditions requirements in
Technical specifications .
• Provide sufficient space around the controller for
cable and wire connections, easy cover removal, and
good ventilation through the controller (50 mm [2
in.] minimum on the top, bottom, and front of the
controller).
• Do not mount the controller on surfaces prone to
vibration, such as ductwork.
• Do not mount the controller in areas where
electromagnetic emissions from other devices or wiring
can interfere with controller communication.
Observe these additional guidelines when mounting a
field controller in a panel or enclosure:
• Mount the controller so that the enclosure walls do
not obstruct cover removal or ventilation through the
controller.
• Mount the controller so that the power transformer
and other devices do not radiate excessive heat to the
controller.
• Do not install the controller in an airtight enclosure.
Figure 2: Controller Mounting Positions
DIN rail mount applications
Mounting the field controller horizontally on 35 mm DIN
rail is the preferred mounting method.
To mount a field controller on 35 mm DIN rail, complete
the following steps:
1. Securely mount a 23 cm (9.125 in.) or longer section
of 35 mm DIN rail, horizontally and centered in the
desired space.
2. Pull the two bottom mounting clips outward from
the controller to the extended position (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 clips inward (up) to
secure the controller on the DIN rail.
To remove the controller from the DIN rail, pull the bot-
tom mounting clips 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, complete the following steps:
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 mounting hole locations on the wall using
the dimensions in Figure 3 and one of the mount
positions shown in . 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 at the marked
locations, and insert appropriate wall anchors in the
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.
Figure 3: Back of Controller showing extended
mounting clips, DIN rail channel, and mounting
dimensions, mm (in.)
FAC3611 Advanced Application Controller Installation Guide 3