Tecfluid CU Series - Manual (Page 7)

7
2.1.1 Power supply wiring
Before starting the installation of the instrument, check that the supply voltage available is
the same as marked on the label of the converter.
Terminal Description Relay
C1
Common Relay 1
NC1 Normally Closed Relay 1
NO1 Normally Open Relay 1
C2
Common Relay 2
NC2 Normally Closed Relay 2
NO2 Normally Open Relay 2
Terminal Power supply
Earth
N Neutral
L Phase
It is important to connect the mains earth to the instruments with AC power supply due to
the presence of a mains filter inside that requires this connection.
2.1.2 Relay output wiring
2
INSTALLATION OF THE ELECTRONIC CONVERTER