Daikin BACnet Series - Installation Procedures; Mounting and Rough-in Preparation

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Installing the BACnet™ Thermostat
This secon provides important instrucons and guidelines for
installing the BACnet Thermostat. Carefully review this informaon
before installing the controllers.
Mounng the BACnet Thermostat
For the most accurate performance, install the BACnet Thermostat on
an inside wall where it can sense the average room temperature. Avoid
locaons with direct sunlight, heat sources, windows, air vents, and air
circulaon or obstrucons such as curtains, furniture, etc.
The BACnet Thermostat must not be:
• Mounted on an exterior wall
• Mounted on or near an object with a large thermal mass such as a
concrete block wall
• Blocked from normal air circulaon by obstrucons
• Exposed to heat sources such as lights, computers, copiers, or
coee makers, or to direct sunlight at any me of the day
• Exposed to dras from windows, diusers, or returns
• Exposed to air ow through connecng conduits or empty spaces
behind walls
Rough-in Preparaon
Complete rough-in wiring at each locaon before mounng a BACnet
Thermostat. This includes the following steps.
• Install the supplied mounng base directly to a wall, a vercal
electrical box, or a box with a wall plate kit
• Roung the connecng cable or cables from the BACnet
Thermostat to the equipment it is controlling
• Block leaks and airow from conduits with plumber’s puy or
similar material
• If replacing an exisng thermostat, label exisng wires for
reference when removing the exisng thermostat
Figure 2: BACnet Thermostat Mounng Base Details
Installing the BACnet Thermostat
CAUTION
Can cause equipment damage.
To prevent mounng screw heads from touching the circuit board
in the controller, use only the mounng screw supplied by Daikin.
Using screws other than the type supplied may damage the
BACnet Thermostat.
To install the controller on a mounng base, do the following:
1. Turn the Allen screw in the base of the sensor clockwise
unl it clears the case.
2. Swing the BACnet Thermostat away from the mounng base
to remove it.
3. Route wiring for the BACnet Thermostat through the
mounng base.
4. Posion the base with the embossed UP toward the ceiling
and fasten it directly to a vercal 2 × 4 inch electrical box.
5. Connect the wires for the BACnet Thermostat to the terminals
in the mounng base.
6. Place the top of the sensor over the top of the mounng base
and swing it down over the Allen screw bracket. Be careful not
to pinch any wiring.
7. Turn the Allen screw counterclockwise unl it backs out of the
mounng base and engages the case.
Figure 3: Allen Head Direcons
Installaon