Technical data

Installation, user and maintenance manual – GAHP-GS/WS
63
Roll the shielding and connect it to a 4-mm eyelet terminal, as illustrated in Figure 5.
6.10 Connection from CAN BUS to connector P8 → 55, details C and D. Now pro-
ceed as follows:
If the DDC is an 6. terminal node connect the three coloured wires to the orange
connector "P8", following the diagram provided in detail "A" of Figure 6.16 detail
wires and jumpers J21 - terminal/intermediate node CCI/DDC → 63. Observe the
terminal markings L, H, GND (on the DDC at the base of the socket "P8") which are
given both in Table 6.2 CAN BUS cables type → 51 and in the example.
If the DDC is an 7. intermediate node repeat the operations from step 2 to step 4 for
the other length of CAN bus cable required. Connect the six coloured wires to the
orange connector "P8", following the diagram provided in detail "B" of Figure 6.16
detail wires and jumpers J21 - terminal/intermediate node CCI/DDC → 63. Observe
the terminal markings L, H, GND (on the DDC at the base of the socket "P8") which
are given both in Table 6.2 CAN BUS cables type → 51 and in the example.
Insert the orange connector ("P8") with the wires first into the opening prepared in 8.
the cover of the DDC, and then into the appropriate socket on the DDC itself, mak-
ing sure it is correctly inserted.
Use the rear cover bolts located near the CAN BUS socket to secure the 4 mm 9.
eyelet (or 2 eyelets) (detail D, Figure 6.10 Connection from CAN BUS to connector
P8 → 55). The cable should be secured against pulling out.
Figure 6.16 – detail wires and jumpers J21 - terminal/intermediate node CCI/DDC
Detail terminal and intermediate node: jumpers position J21: "closed" - "open".
LEGEND
DDC CCI/DDC
J21 Jumper CAN-BUS in CCI/DDC board
A detail case "terminal node" (3 wires; J21=jumper "closed")
B detail case "intermediate node" (6 wires; J21=jumper "open")
H,L,GND data signal wires
How to connect the DDC
The DDC requires a low voltage power supply (24 V) with a 230/24 V AC, 50 Hz safety
transformer; the minimum power requirement is 20 VA. For the connection use a cable
with the minimum specifications 2 x 0.75 mm
2
.