Technical data

66
Figure 6.19 – Connexion câble CAN BUS for plants with more unit
Connexion câble CAN BUS between one DDC and more unit
LEGEND DDC direct digital control SCH electronic board S61 J1 Jumper CAN-BUS in board S61 J21 Jumper CAN-BUS in board DDC A terminal nodes connection - (3 wires; J1 e J21 = "closed") B intermediate node connection - (6 wires; J1="open") H,L,Gnd data signal wires (rif. cables table)
How to connect the system water circulation pumps
Control of the plant water circulation pump from the appliance’s controller depends on
the power rating of the pump itself. 2 cases may be distinguished: