LightwaveRF Comfy LW920 Professional Series Instruction Manual page 16

Install 1: combi boiler
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 di er, so please refer to your specific boiler manual for guidance.
'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.
Room thermostat
terminals