Secure C1727 Installation And Commissioning Manual page 20

Make connections
3 Port Valve or Y Plan
A3
*Note : The receiver has
voltage free contacts. A
link between terminal L
and terminal 2 is
required for mains
voltage applications
White
Blue
Green/
Yellow
Orange
Mid-pos.
valve
Grey
20
This diagram is schematic and should be used for guidance only.
N
N
L
Cyl
stat
Call
Receiver back plate
*
1 2
L Com
O
C
Call
Sat
3
4
ON ON
C
N
Frost
stat
if
fitted Call
Sat
L N
Pump &
Boiler
C
Room
stat