Riello 1301 T Installation, Use And Maintenance Instructions page 58

Wiring layout key
A Control box
B1 Internal output power regulator RWF40
B2 External output power regulator RWF40
BA Probe with current output
BA1 Device with current output for editing remote setpoint
BP Pressure probe
BP1 Pressure probe
BR Remote setpoint voltage divider
BT1 Thermocouple probe
BT2 Probe Pt100 with 2 wires
BT3 Probe Pt100 with 3 wires
BT4 Probe Pt100 with 3 wires
BTEXT External probe for the climatic compensation of the
setpoint
BV Probe with voltage output
BV1 Device with voltage output for editing remote setpoint
F1 Fan motor thermal cut-out
F2 Pump motor thermal cut-out
F3 Auxiliary fuse
H1 Signal light for burner on
H2 Signal light for fan and pump motors trip
KL1 Direct start and star/delta starter line contactor
KMP Pump motor contactor
KT1 Star-powered/delta-powered starter /delta contactor
KS1 Star-powered/delta-powered starter /star-powered
contactor
KST1 Star-powered/delta -powered starter timer
K3 Burner lock-out voltage free contact relay
K4 Light oil operation voltage free contact relay
K5 Gas operation voltage free contact relay
K6 Fuelled burner ON clean contacts output relay
KG Gas operation relay
KO Light oil operation relay
MP Pump motor
MV Fan motor
PA Air pressure switch
PE Burner ground (earth) connection
PGM Maximum gas pressure switch
PGMin Minimum gas pressure switch
PO Oil pressure switch
PO1 High-limit oil pressure switch on return line
RS Remote lock-out reset button
S1 Emergency stop push-button
S2 Dial for off - automatic - manual
S4 Power dial for increase - decrease of power
S5 Fuel selector and remote fuel selector enabling
SH3 Burner reset button and lockout warning
SM Servomotor
TA Ignition transformer
TL Limit pressure switch/thermostat
TR Control pressure switch/thermostat
TS Safety pressure switch/thermostat
20010305
Appendix - Electrical panel layout
UV
Y
YVPS
X1
X2
X4
XAUX
XM
XPGM
XPGM1
XRWF
XS
XSM
VF
VP1
VP2
VR
VR1
VS
56 GB
Flame sensor
Gas adjustment valve + gas safety valve
Gas valve leak detection control device
Main supply terminal strip
RWF40 terminal strip
Light oil assembly terminal block
Auxiliary terminal strip
Light oil assembly connector
Maximum gas pressure switch connection plug
Minimum gas pressure switch connection plug
Output power regulator RWF40 terminal strip
Flame detectors connector
Air and gas servomotors connector
Light oil operation valve
Pilot valve 1
Pilot valve 2
Light oil return valve
Light oil return valve
Light oil safety valve