Component Data; Service Pin - Daikin MicroTech III Installation And Maintenance Manual

Component Data

The L W communication module is a printed circuit
on orks
board with a plastic enclosure. It connects directly to the left-
hand side of the MicroTech III chiller unit controller as shown
Figure 3: L W Communication Module Attached to Unit Controller
on orks
Figure 4 shows the important features of the L
communication module, which are described in the following
section.
Figure 4: L W Communication Module - Main
on orks
Features
Pin CLA
Pin CLB
Network
Connector

Service Pin

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in Figure
connected to the unit controller. In this case, the L
communication module simply attaches directly to the left side
of the existing module instead of the unit controller.
W
Service Pin
on orks
The service pin generates a service-pin message that contains
the Neuron
The service pin message is used to commission the L
communication module by broadcasting it on the network
(Figure 4
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
Figure 5: Service Pin Detail
BUS LED
BSP LED
5 IM 968-4 • MICROTECH III CHILLER UNIT CONTROLLER
3. It may be possible that another module is also
ID and the program code identification of the node.
®
and Figure 5).
Commissioning
I
nTroduCTIon
W
on orks
W
on orks
section for details.