User's Manual

Identify
Open the boiler door using the
manual, if necessary.
Find your former thermostat’s
relay. Follow its wires to identify
to which boiler terminals they are
connected.
Take a picture of the wiring.
Note: Some thermostats are
connected to different terminals from
those on the diagram’s list (for exa-
mple, eBus, EMS…). In this case,
you will have to identify the right
thermostat terminals, labeled LS-LR,
TA, or COM-NO
220V Power supply terminals
Usually blue and brown wires
Thermostat terminal
Usually black or grey
wires
P / N
L / N
or
LS / LR
TA
COM / NO
or
or
Manuel 2_EN.indd 4 13/01/2014 10:26:47