Riello 40 FS5 Installation, Use And Maintenance Instructions page 33

Wiring layout key
A Flame control
B4 Operation signal
+BB Burner components
+BC Boiler components
C Motor capacitor
E Ignition electrode
F1 Filter
h1 Hour counter
IN Manual stop switch
MV Fan motor
Q1 Single-phase disconnecting switch
PA Air pressure switch
PG Min. gas pressure switch
S3 Remote lock-out signal
ION Ionisation probe
TA Ignition transformer
TB Burner earth
TL Limit thermostat
TS Safety thermostat
VR Adjustment valve
VS Safety valve
Y Gas valve
YVPS Gas valve leak detection
WF.. Filter connector
WM Motor connector
WPA Air pressure switch connector
WS Ionisation probe connector
X6 6 pin plug
X7 7 pin plug
XP6 6- pole socket
XP7 7-pole socket
Appendix - Electrical panel layout
31 GB
20065652