Riello DB 4 SE FGR Installation, Use And Maintenance Instructions page 73

Industrial gas burners
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Legenda schemi elettrici
PA
Pressostato aria
PGM
Pressostato gas di massima
PGmin
Pressostato gas di minima
PGVP
Pressostato controllo di tenuta
PSX
Pressostato gas di sicurezza
QRI
Sensore fiamma
SM...
Servomotori
TA
Trasformatore di accensione
XP...
Prese pressostati...
XPGM
Connettore pressostato gas di massima
XQRI
Connettore sensore fiamma
XSM
Connettore servomotore aria
XTB
Terra bruciatore
XT1
Morsettiera bruciatore
Y
Rampa gas
Appendice - Appendix
Wiring layout key
PA
PGM
PGmin
PGVP
PSX
QRI
SM...
TA
XP...
XPGM
XQRI
XSM
XTB
XT1
Y
37
Air pressure switch
Max. gas pressure switch
Min. gas pressure switch
Pressure switch for leak detection control device
Safety gas pressure switch
Flame sensor
Servomotors
Ignition transformer
Pressure switch sockets
Connector for max. gas pressure switch
Connector for sensor flame
Connector for air servomotor
Burner earth
Burner terminal strip
Gas train
20169009

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