InTroduCTIon
www.DaikinApplied.com 5 IM 968-4 • MICROTECH III CHILLER UNIT CONTROLLER
Component Data
The LonWorks communication module is a printed circuit
board with a plastic enclosure. It connects directly to the left-
hand side of the MicroTech III chiller unit controller as shown
in Figure 3. It may be possible that another module is also
connected to the unit controller. In this case, the LonWorks
communication module simply attaches directly to the left side
of the existing module instead of the unit controller.
Figure 3: LonWorks Communication Module Attached to Unit Controller
Figure 4 shows the important features of the LonWorks
communication module, which are described in the following
section.
Figure 4: LonWorks Communication Module - Main
Features
Service Pin
The service pin generates a service-pin message that contains
the Neuron
®
ID and the program code identication of the node.
The service pin message is used to commission the LonWorks
communication module by broadcasting it on the network
(Figure 4 and Figure 5).
The service pin button is located below the enclosure just left
of the LEDs. The service pin is activated by inserting a small
tool into the button. See Commissioning section for details.
Figure 5: Service Pin Detail
BSP LED
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