Secure C1727 Installation And Commissioning Manual page 18

Make connections
2x heating zone system
A3
N 1 3
L 2
1.0/1.5 mm
2
Torque <0.5 Nm
*Note : The receiver has voltage free contacts.
A link between terminal L and terminal 2 is
required for mains voltage applications
Note: Connections shown for mains operated 2x heating zone system. These may vary for
di erent boiler types.
18
4
This diagram is schematic and should be used for guidance only.
N L 1 2 3 4