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Mod Con 300
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45
GAS-FIRED BOILER Boiler Manual
PART 8: FIELD WIRING (CONTINUED)
UNUSED COMMUNICATION
BUS JACK AVAILABLE TO
CONNECT TO VISION 2.
UNUSED COMMUNICATION
B JACK AVAILABLE TO
CONNECT TO VISION 2.
4. Connect the boilers in a daisy chain
configuration as shown below. It is best to
wire the boilers using the shortest wire runs
rather than trying to wire them in the order
that they are addressed. The communication
bus jacks on the customer connection panel
are interchangeable so you can use either
one or both in any order to connect the cable
to. If you have connected the boilers to each
other properly, two of the boilers will have
one open connection port on them.
Fig. 8-2 LP-205-JJ

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