Daikin ACZ User Manual

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www.DaikinApplied.com 9 IM 968-4 • MICROTECH III CHILLER UNIT CONTROLLER
Figure 9: Communication Module with Board-to-Board
Connector Inserted
6. Insert the other end of the board-to-board connector to
the far-left side of the unit controller or other module, if
attached.
7. Connect the LonWorks communication module to
the network by inserting a network cable into the
communication module’s network connector (Figure 4).
8. Apply power to the unit controller.
The unit controller automatically resets itself approximately
30 seconds after power has been applied to it. This reset is
necessary so that the LonWorks communication module can
synchronize with the unit controller.
NOTE: There is a limit of three devices that can be attached
to the left side of the unit controller.
9. Set the Unit On/Off Switch to “On” from inside the control
panel of the unit.
Replacing a Communication Module
Follow these steps to remove an existing LonWorks
communication module from unit controller and replace it with
a new module.
1. Set the Unit On/Off Switch to “Off” from inside the control
panel of the unit. This must be done prior to replacing a
communication module. See for switch location.
2. Remove power from the unit controller.
3. Locate the LonWorks communication module to the left
of the unit controller (Figure 3).
4. Gently pull the network cable connector from the
LonWorks communication module (Figure 4).
5. Grasp the LonWorks communication module and
carefully pull it from the unit controller (or from an
adjacent module, if it is attached to one.)
6. Install the new LonWorks communication module:
a. Carefully remove the blue plastic knockout strip
on the right side of the LonWorks communication
module.
b. Insert the board-to-board connector into the
LonWorks communication module. Note that it only
ts one way and that the bafes must line up with
corresponding slots in the communication module
and the unit controller (Figure 8 and Figure 9).
7. Insert the network cable connector into the LonWorks
communication module (Figure 4).
8. Apply power to the unit controller.
The unit controller automatically resets itself approximately
30 seconds after power has been applied to it. This reset is
necessary so that the LonWorks communication module can
synchronize with the unit controller.
9. Set the Unit On/Off Switch to “On” from inside the control
panel of the unit.

Daikin ACZ Specifications

General

Brand	Daikin
Model	ACZ
Category	Controller
Language	English