Make Connections - Secure H3747 Installation And Commissioning Manual

Make connections

4 zone heating system
A3
E
N
L
Note: Connections shown for mains operated 4x heating zone system. These may vary for
di erent boiler types.
16
This diagram is schematic and should be used for guidance only.
Receiver back plate
1
N L
ON
Call
N L
Boiler
*
3 4
2
ON
Call Call
Zone 1 Zone 2
valve valve
*Note : The receiver has voltage free contacts. A
link between terminal L, 2 and 4 is required for
mains voltage applications.
5 6
ON ON
Call
Zone 3 Zone 4
valve valve