System Manager Wiring Diagram; Optional Varican Adapter Wiring Diagram - Keston HEAT 2 45 Installation & Servicing

4.2 SYSTEM MANAGER WIRING DIAGRAM

4.3 OPTIONAL VARICAN ADAPTER WIRING DIAGRAM

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SECTION 4 - WIRING
SM X3
ChipCom
1 2 3 4 5
4 3
CAN Bus (High power)
To SM
Terminal (CAN TTL)
1 2 3
Varican TTL lead from KM821‐i5 X8
SM X2
OpenTherm
1 2 3 4
OpenTherm lead
From I9
2 1
RJ11 6P4 / 1
CAN Bus External Interface
RJ11 6P4 / 2
CAN Bus External Interface
4 5 6 7
SM X1
Terminal (CAN TTL)
1 2 3 4 5 6 7
Varican TTL lead from KM821‐i5 X8
Varican TTL lead
To SM X1
CAN Bus
CAN Bus
Installation & Servicing