44
GB
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 RWF40
B2 - Fuel meter
BA - Input in current DC 4...20 mA
BA1 - Input in current DC 4...20 mA to modify remote
setpoint
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
setpoint
BV - Input in voltage DC 0...10V
BV1 - Input in voltage DC 0...10V to modify remote set-
point
C1 - Capacitor
CN1 - Ionisation probe connector
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 con-
trol device
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
X1 - Burner terminal strip
X4 -
4 pin plug
X5
- 5 pin plug
X6 - 6 pin plug
X7 - 7 pin plug
XP1 - Connector for output power regulator kit RWF40
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
detection control device
XRWF - Terminal board for output power regulator RWF40
XSM1 - Gas servomotor connector
XSM2 - Air servomotor connector
XTM - Burner shelf
Y-Gas adjustment valve + gas safety valve
Appendix - Electrical panel layout
A
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