39
20159575
GB
Appendix - Electrical panel layout
Wiring layout key
+BB
Burners components
+BC
Boiler components
A
Electrical control box
B
Filter to protect against radio disturbance
B1
Output regulator RWF50
BP
Pressure probe
BT
Probe Pt100, 3 wires
C1
Motor capacitor
CN1
Ionisation probe connector
H
Remote lockout signalling
H1
Lockout YVPS
IN
Burner manual stop switch
ION
Ionisation probe
h1
Hour counter
h2
Hour counter
K1
Relay
KM
Motor contactor
MV
Fan motor
PA
Air pressure switch
PGMin
Minimum gas pressure switch
Q2
Single-phase disconnecting switch
RS
Reset button
S1
Off / automatic / manual selector
S2
Power increase / power reduction selector
SM
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
YVPS
Valve leak detection device
XMB
Burner terminal strip
XP4
4-pole socket
XP6
6- pole socket
XP7
7-pole socket
X4
4-pin plug
X6
6-pin plug
X7
7-pin plug