Riello DB 6 LSM C13 Installation, Use And Maintenance Instructions page 71

4.15.3 Wiring diagram (SQM 40)
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Fig. 31
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Key (Fig. 31)
ASZ Servomotor potentiometer (optional)
XT1 Burner terminal strip
PA Air pressure switch
PGM Max. gas pressure switch
PO Maximum oil pressure switch
SM Servomotor
TA Ignition transformer
XTB Burner earth
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UV UV sensor
VF Operation valve
VP1-2 Gas pilot safety valve
VR Oil return valve
VRS Oil return valve
VS Oil safety valve
X1-X2-X3 Servomotor terminal board
XS1-XP1 Servomotor connection plug-socket
After carrying out maintenance, cleaning or
checking operations, refit the cover and all the
safety and protection devices of the burner.
28 GB
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