Riello RLS 650/E MX Installation, Use And Maintenance Instructions page 55

Wiring layout key
AZL Display and operating unit
A5 Control box
B1 Internal output power regulator RWF50
B2 External output power regulator RWF50
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 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 Gas operation voltage free contact relay
K7 Light oil operation voltage free contact 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
PGVP Gas pressure switch for leak detection control device
PO Oil pressure switch
PO1 High-limit oil pressure switch on return line
QRI Infrared sensor
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
SM1 Air servomotor
SM2 Gas servomotor
SV Main safety valve
Appendix - Electrical panel layout
TA
TL
TR
TS
T1
UV
VF
VP1
VP2
VR
VR1
VS
X1
X2
X4
XAUX
XAZL
XM
XPGM
XPGM1
XRWF
XS
XSM
XVP1
XVP2
Y
53 GB
Ignition transformer
Limit pressure switch/thermostat
Control pressure switch/thermostat
Safety pressure switch/thermostat
Electronic cam transformer
Flame sensor
Light oil operation valve
Pilot valve 1
Pilot valve 2
Light oil return valve
Light oil return valve
Light oil safety valve
Main supply terminal strip
RWF50 terminal strip
Light oil assembly terminal block
Auxiliary terminal strip
AZL connector
Light oil assembly connector
Maximum gas pressure switch connection plug
Minimum gas pressure switch connection plug
Output power regulator RWF50 terminal strip
Flame detectors connector
Air and gas servomotors connector
Pilot valve 1 connector
Pilot valve 2 connector
Gas adjustment valve + gas safety valve
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