Riello RX 1800 S/E Installation, Use And Maintenance Instructions page 84

Wiring layout key
A1 Electronic cam
A2 Display and calibration unit
B Suppressor
B1 Output power regulator RWF50 internal
B2 Fuel level measurer
BA Output probe in current
BA1 Output device in current to modify remote setpoint
BP Pressure probe
BP1 Pressure probe
BR Remote setpoint potentiometer
BT Thermocouple
BT1 Thermocouple probe
BT2 Probe Pt100, 2 wires
BT3 Probe Pt100, 3 wires
BT4 Probe Pt100, 3 wires
BTEXT External probe for climatic compensation of the set-
point
BV Output probe in voltage
BV1 Output devicein voltage to modify remote setpoint
F1 Fan motor thermal relay
FU Auxiliary circuits safety fuse
FU1 - FU2 Auxiliary circuits safety fuses
G1 Load indicator
G2 Communication interface for Modbus system
H Burner working lighting signal output
H1 - H2 Light signal on the burner
IN Burner manual stop electric switch
UV Flame sensor
KMV Direct start up contactor
K1 Clean contacts output relay burner switched on
K2 Clean contacts output relay burner lockout
K3 Clean contacts output relay "Warning" air filter
MV Fan motor
PA Air pressure switch
PAF1 "Safety" filter air pressure switch
PAF2 "Warning" filter air pressure switch
PE Burner earth
PGMax Maximum gas pressure switch
PGMin Minimum gas pressure switch
PGVP Gas pressure switch for valve leak detection control
device
RS Burner reset switch
S2 ON/OFF selector
SM1 Air servomotor
SM2 Gas servomotor
TA Ignition transformer
TL Limit thermostat/pressure switch
TR Adjustment thermostat/pressure switch
TS Safety thermostat/pressure switch
Y Gas regulator valve + gas safety valve
Y1 Ignition pilot valve
X1 Main terminal supply board
X2 "Warning air filter" remote signal terminal board
XP1 Output power regulator connector RWF50
XPD Plug for on board display
XPGMax Maximum gas pressure switch connector
20152087
Appendix - Electrical panel layout
XPGMin
XPGVP
XRWF
XTA
XVP
W...
82 GB
Minimum gas pressure switch connector
Gas pressure switch connector for valve leak detec-
tion control device
Terminal board for output power regulator RWF50
Ignition transformer connector
Ignition pilot valve connector
Electric cables