Delta Dore RF 642 - Manual (Page 5)

- 9 -
Connecting a boiler
without thermostat
input
If the boiler does not have a
thermostat input, you can
directly control the circulator
located next to the boiler.
To control electric
convectors, you MUST use
a power contact switch that
is suitable for the total power
to be controlled.
N
L
circulator
power supply
230V/50Hz
230V
contact switch (not
supplied) fitted in the
electrical switchboard
N
N
L
L
convector(s)
mains supply
230V/50Hz
power supply of the
contact switch coil
230V
convector(s)
N
OR
direct convector
control if power
< 3000 W
Connection to the heating
- 8 -
Connecting a boiler with thermostat input
Connect receiver terminals 3 and
4 to both terminals of the boiler
thermostat input.
If necessary, remove the shunt (electric wire)
connecting the two
thermostat input
terminals.
If the boiler has a clock
input, do not mistake it
for the thermostat input.
boiler
thermostat
input
boiler
230V
remove
the shunt
wires to be
connected to
the receiver
Example of a boiler
terminal box
do not mistake for
the clock input
(on some boiler
models)