LightwaveRF Comfy LW920 Professional Series Instruction Manual page 29

Install 4: S plan plus (multizone)
Wire the Boiler Switch
Use 5 core cables to connect each Boiler Switch to the wiring centre (you can
also use two 2 core and two 3 core cables instead). Connect the room
thermostat terminals, and add live, neutral and earth as shown in the diagram.
Remember that the terminal arrangement in your wiring centre may not be
identical; this is an approximate guide only.
'Normally open',
'common' and
'normally closed'
relay contacts
(closed position
shown)
NOTE: 5 core cable
shown. 3 core
(power) and 2 core
(room thermostat
connection) cables
can be used instead
Room thermostat
connections