Riello DB 12 LSE FGR Installation, Use And Maintenance Instructions page 43

Wiring layout key
PA Air pressure switch
PGM Maximum gas pressure switch
POm Minimum oil pressure switch
POM Maximum oil pressure switch
PX Oil lance proximity switch
QRI Flame sensor
SM... Servomotors
TA Ignition transformer
VP1 Pilot valve 1
VP2 Pilot valve 2
VR1 Safety valve on oil return 1
VR2 Safety valve on oil return 2
VS1 Safety valve on oil delivery 1
VS2 Safety valve on oil delivery 2
VU Nozzle valve
XSM1 Servomotors connector
XT1 Burner terminal strip
XTB Burner ground (earth) connection
Appendix - Electrical panel layout
41 GB
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