C.I.B. UNIGAS - M039175CD
18
Electrical wiring diagram for burners provided with printed circuit (standard configuration).
.
As far as connections, refer to the terminal block shown on Fig. 19.
1
Connect the signal conductors from the boiler to the burner, as for the next elements (Fig. 20 - Fig. 22):
ST
: thermostat/pressure switch series
TAB
: High/low flame thermostat
2
Connect the signal conductors from the burner to the boiler, as for the next elements (Fig. 20 - Fig. 22)
LB
: Burner’s lockout signalling LED
LSPG
: Gas proving system lockout signalling LED
3
In case of modulating burners, the 5, 6 and 7 terminals, on the
MA
teminal block, are already connected to the output controller
(mod.
RWF40
). A 4-pole plug coming out from the electrical panel is provided for the temperature and pressure probes connec-
tions (see Fig. 21).
Note:
the output controller modulator is provided according to the ordered probe
Fig. 19: Terminal board for connections on printed circuit
Fig. 20: Progressive burners
Fig. 21: Probes connection
Fig. 22: Fully modulating burners
Probes connection by means of the 7-pins plug (Fig. 23) - see Fig. 21 for connections.
Fig. 23
RWF40 >>>