Riello RS 64/M MZ Installation, Use And Maintenance Instructions page 50

Wiring layout key
A - Electrical control box
B - Filter to protect against radio disturbance
B1 - RWF Output power regulator
+BB - Burner components
+BC - Boiler components
BP - Pressure probe
BT - 3-wire Pt100 probe
CN1 - Ionisation probe connector
F1 - Fan motor thermal relay
FU - Three-phase line fuses
H - Remote lockout signalling
H1 - Lockout YVPS
IN - Burner manual stop switch
ION - Ionisation probe
h1 - Hour counter
K1 - Relay
KM - Motor contactor
MV - Fan motor
PA - Air pressure switch
PGM - Maximum gas pressure switch
PGMin - Minimum gas pressure switch
Q1 - Three-phase disconnecting switch
Q2 - Single-phase disconnecting switch
RS - Remote burner reset button
S1 - Off / automatic / manual switch
S2 - Output increase / decrease switch
SM - Servomotor
TA - Ignition transformer
TL - Limit thermostat/pressure switch
TR - Adjustment thermostat/pressure switch
TS - Safety thermostat/pressure switch
Y - Gas adjustment valve + gas safety valve
YVPS - Valve leak detection device
XMB - Terminal board
XPE - Control box earth
XPGM - Minimum gas pressure switch connector
XP4 - 4-pole socket
XP5 - 5-pole socket
XP6 - 6-pole socket
XP7 - 7-pole socket
XTM - Earth shelf
X4 - 4-pin plug
X5 - 5-pin plug
X6 - 6-pin plug
X7 - 7-pin plug
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Appendix - Electrical panel layout
48 GB