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Electrical wiring diagram for burners provided with printed circuit (standard configuration).
As far as connections, refer to the terminal block showed on Fig. 23.
1
Connect the signal conductors from the boiler to the burner, as for the next elements (Fig. 24 - Fig. 26):
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. 24 - Fig. 26)
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 regulating modula-
tor (mod. RWF40). A 4-pole plug coming out from the electrical panel is provided for the temperature and pressure probes connec-
tions (see Fig. 25).
Note: the regulating modulator is provided according to the ordered probe
CIB UNIGAS - M039177CA
Fig. 23: Terminal board for connections on printed circuit
Fig. 24: Progressive burners
RWF40 >>>
Fig. 26: Fully modulating burners
Fig. 25: Probes connection
21
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