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If you would like to operate an old boiler or any other device
that has no connection points for thermostats, then the 1
(NO) and 2 (COM) connection points of the thermostat should
be connected to the mains cable of the device, similarly as
a switch would be connected, as shown in the gure below.
ATTENTION! Always consider the loadability of the receiver unit
and follow the manufacturer’s instructions of the heating or cooling
equipment.
LN 1 2
3
NO COM NC
Rear panel of
the receiver
unit
230 V AC, 50 Hz
230 V AC
50 Hz
Pump (heater / infrapanel
etc.)
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