Wire the Boiler Switch
Link the Boiler Switch and boiler terminals as shown in the diagram using
the single 5 core cable. Remember that the terminal arrangement on your
boiler may differ, so please refer to your specific boiler manual for guidance.
Room thermostat
terminals
‘Normally open’,
‘common’ and
‘normally closed’
relay contacts
(closed position
shown)
NOTE: 5 core cable
shown. 3 core
(power) and 2 core
(RT connection)
cables can be used
instead if necessary.
Install 1: combi boiler