Installation, user and maintenance manual
– AY Condensing line, AY series
57
Figure 5�13 – Connection from CAN BUS to connector P8
Connection detail of cable CAN BUS.
LEGEND
A
Insulating tape to protect board/shield
B
CAN BUS cable wires
C
CAN bus cable shield
D
terminal and screw for fixing
To connect a CAN BUS cable to a DDC, proceed as follows (references in Figure 5.14
detail wires and jumpers J21 - terminal/intermediate node DDC
→
58):
You will need: DDC not powered up. Necessary equipment and materials.
Depending on the type of node being configured, set the DDC's jumpers as
1.
shown in detail "A" or detail "B" in the figure. If necessary, open the DDC’s back
panel (4 bolts); after the jumpers have been correctly positioned, close the cover
again and retighten the 4 bolts;
if the DDC is an
•
intermediate node on the network (with no. 6 wires in the
orange connector): set the jumpers as shown in detail "B" of the figure: Jumpers
OPEN;
if the DDC is a
•
terminal node on the network (with no. 3 wires in the orange con-
nector): set the jumpers as shown in detail "A" of the figure: Jumpers CLOSED.
