WIRING DIAGRAM KEY
A
-
Electrical control box
BB
-
Components on burners
BC
-
Components on boiler
C1
-
Capacitor
F1
-
Fan motor thermal relay
FR
-
Photocell
H
-
Remote lockout signalling
IN
-
Manual burner arrest switch
h1
-
Hour counter
h2
-
Hour counter
KM
-
Motor contact maker
MV
-
Fan motor
Q1
-
Three-phase knife switch
Q2
-
Single phase knife switch
RS
-
Remote burner reset button (accessory)
S1
-
Switch: burner on-off
S2
-
Switch: 1st - 2nd stage
TA
-
Ignition transformer
TL
-
Extreme thermostat/pressure switch
TR
-
Adjustment thermostat/pressure switch
TS
-
Safety thermostat/pressure switch
XP4
-
4 pole socket
XP5
-
5 pole socket
XP7
-
7 pole socket
XTB
-
Shelf earth
XTM
-
Fan unit earth
X4
-
4 pin plug
X5
-
5 pin plug
X7
-
7 pin plug
V1
-
Ignition solenoid /1st stage
V2
-
2nd stage solenoid
WC
-
Capacitor connection
NOTE
Electrical wiring must be made in accordance with
the regulations currently in force in the country of
destination and by qualified personnel.
Riello S.p.A. declines all liability for modifications or connec-
tions other than those shown on these diagrams.
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