Riello RS 68/EV O2 BLU Installation, Use And Maintenance Instructions page 57

Wiring layout key
A2 O2 module - PLL type
A5 Control box for the air/fuel ratio
AZL Display control box
B Suppressor
BA2 Load indicator
BA3 Probe for external modulation 4...20mA
BA Input in current DC 4...20 mA
BA1 Input in current DC 4...20 mA to modify remote set-
point
+BB Burner components
+BC Boiler components
BP Pressure probe
BP1 Pressure probe
BT3 Probe Pt100, 3 wires
BT4 Probe Pt100, 3 wires
BT5 PT/LG-Ni1000 probe
BV Input in voltage DC 0...10V
BV1 Input in voltage DC 0...10V to modify remote setpoint
BV2 Probe for external modulation 2...10V
CN1 Ionisation probe connector
F1 Protection fuse for three-phase line
F3 Auxiliary fuse
G2 Motor speed sensor
G10 O2 sensor - OGO20 type
G20 Probe for combustion flue gases temperature control
G30 Probe for air temperature control
GF Inverter
H1 Green indicator "POWER-ON"
H2 Green indicator "FUEL ON"
ION Ionisation probe
MV Fan motor
K2 K2 relay (free contact "VSD LOCK-OUT")
K3 K3 relay (free contact "BURNER LOCK-OUT")
K6 K6 relay (free contact "BURNER ON")
PA 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
Q1 Three-phase disconnecting switch
Q2 Single phase disconnecting switch
RS Remote burner reset button
S1 "EMERGENCY STOP" button
S2 "0/AUTO" selector
SH3 Burner lock-out reset button and lock-out light signal
SM1 Air servomotor
SM2 Gas servomotor
TA Ignition transformer
T1 Supply transformer of the control box
T2 Additional transformer (optional, where required for
the installation of O
TL Limit thermostat/pressure switch
TS Safety thermostat/pressure switch
V1 V1 Valve
V2 V2 Valve
X1 Burner terminal strip
XPGM1 Maximum gas pressure switch connector
XAZL Connector for control box display
Y Gas adjustment valve + gas safety valve
Appendix - Electrical panel layout
kit)
2
57 GB
20155480