N L
M
N L
OFF
230 V~
50 Hz
OFF
OFF
230 V~
50 Hz
OFF
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After connecting the electrics, reposition
the terminal cover and close up the
device
F
, making sure you hook it into
the relevant slots.
U2
CLOSED
OPEN
U1
LOAD
VALVE
Electrical connections.
The connections are made according to
the type of equipment controlled by the
programmable thermostat.
KEY
Mains power supply wires
N = neutral – L = live
Relay contacts
NC = normally closed contact
C = common
NO = normally open contact
NOTE: In the event of a power failure, the
relay does not lose its status.
Loads
U1 = burner, circulation pump, solenoid
valve, etc.
U2 = motorised valve
NOTE: Before connecting up the device,
see the technical documentation for the
device to be controlled.
