20068423
68
GB
Appendix - Electrical panel layout
Wiring layout key
A1
Control box for the air/fuel ratio
A2
Operator panel
B
Filter to protect against radio disturbance
+BB
Burners components
+BC
Boiler components
B1
Output regulator RWF
B2
Fuel meter
BA
Input in current DC 4...20 mA
BA1
Input in current DC 4...20 mA to modify remote set-
point
BP
Pressure probe
BP1
Pressure probe
BR
Remote setpoint potentiometer
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
Input in voltage DC 0...10V
BV1
Input in voltage DC 0...10V to modify remote setpoint
CN1
Ionisation probe connector
F1
Fan motor thermal relay
G1
Load indicator
G2
Communication interface for Modbus system
h1
Hour counter
H
Remote lockout signal
ION
Ionisation probe
IN
Manual burner arrest switch
K1
Burner lockout clean contact relay
K2
Flame present clean contact relay
KM
Fan motor relay
MV Fan
motor
PA
Air pressure switch
PE
Burner earth
PGM
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
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
T6A
Fuse
X1
Burner terminal strip
X4
4 pin plug
X5
5 pin plug
X6
6 pin plug
X7
7 pin plug
X9
Connector for operation without RWF output power
regulator kit
XP1
Connector for output power regulator kit RWF
XP4
4 pole socket
XP5
5 pole socket
XP6
6 pole socket
XP7
7 pole socket
XPD
Operator panel connector
XPGM
Maximum gas pressure switch connector
XPGVP
Gas pressure switch connector for valve leak detec-
tion control device
XRWF
Terminal board for output power regulator RWF
XSM1
Gas servomotor connector
XSM2
Air servomotor connector
XTM
Burner shelf
Y
Gas adjustment valve + gas safety valve