Secure H3747 Installation And Commissioning Guide

Make connections
Note: Connections shown for mains operated 2x heating zone + 1x water heating system.
These may vary for dierent boiler types.
2 zone heating and hot water system
A3
N L
1
2
3 4
5
6
Receiver back plate
N L
Boiler
*
Zone 1
valve
Zone 2
valve
Zone 3
valve
ON ON ON
Call CallCall
C
Cylinder
stat
E
N
L
Mains supply
This diagram is schematic and should be used for guidance only.
*Note : The receiver has voltage free contacts. A
link between terminal L, 2 and 4 is required for
mains voltage applications.
17

Secure H3747 Specifications

General

Brand	Secure
Model	H3747
Category	Thermostat
Language	English