Secure C1727 Installation And Commissioning Manual page 19

Make connections
1x heating + 1x water heating system
A3
N L 1 2 3
1.0/1.5 mm
2
Torque <0.5 Nm
Note: Connections shown for 1x heating and 1x water heating. Connections may vary for
di erent boiler types.
4
This diagram is schematic and should be used for guidance only.
N L 1 2 3 4
19