Riello 3433723 Installation, Use And Maintenance Instructions page 22

3.2 ELECTRICAL WIRING
ELECTRICAL WIRING CONNECTIONS (carried out by the factory)
TB
16
B
C
M
MV
S
TB
1 3 5
2 4 6
R
1 2
C Capacitor
CR Pre-heater contactor
F Suppressor
FR Photoresistance
H Remote lock-out signal
IN Manual burner stop switch
K1 Relay
MB Burner terminal strip
Fan motor
MV
Reset push-button
PS
Nozzle holder resistance
R
RMO Control box
S Pre-heater
SM Servomotor
TA Ignition transformer
TB Burner earth
TE Start-up adjustment thermostat
TL Limit control device system
TR High-low mode control device system
Safety control device system
TS
Min. value contact thermostat
Tm
Max. value contact thermostat
TM
st
1 stage valve
V1
nd
V2 2 stage valve
NOTE
Wires of min. 1 mm
(Unless requested otherwise by local standards and legislation).
TWO STAGE OPERATION
It can be achieved by the control device TR, that controls 2
connected to terminals 7 and 8 (removing the bridge).
5827
RMO88.53A2 RMO88.53A2
11 4 15 12
TE
TM
6 5
2 1 A2
A2
F
K1
CR
10 9
A1
A1
3 4
2
section.
5 1 18 9 13 8
FR
Tm
TA
5 6 7 8 9
ELECTRICAL CONNECTIONS TO THE BURNER
TERMINAL STRIP (carried out by the installer)
nd
stage valve,
4
GB
17
3 10
7
8
6
11
2
5
3
4
1
V1
V2
MB
10 11 12
D2572
PRE-HEATING RESISTANCES
CONNECTIONS
SM
D2571
D2634