Wiring Diagram (Two-Stage Version Without Heater) - Riello MO550-BWG Instrucciones De Instalación, Uso Y Mantenimiento

3.5

Wiring diagram (two-stage version without heater)

Key to lay-out
– 2nd stage operation signal (230V
B5
– Capacitor
C
– Electrode
E
– Flame sensor
F
– Hour counter (230V
h..
MV – Motor
– Bridge socket
P
RS – Remote reset
– Remote lockout signal (230V
S3
SER – Safety lockout device
T6A – Fuse
TB – Burner earth
– Limit thermostat
TL
TR – Adjustment thermostat
– Safety thermostat
TS
– Oil valve 1st stage
V1
– Oil valve 2nd stage
V2
– Plug
X..
XP.. – Socket
Electrical data and operating times
20139263
Master
switch
230V ~ 50Hz
~
- 0.1A max.)
~
- 0.1A max.)
~
- 0.5A max.)
TO BE DONE BY
BY THE INSTALLER
 Do not invert the neutral with the phase in the
electrical supply line.
 Check that the electrical supply of the burner
corresponds to that shown on the identifica-
WARNING
tion label and in this manual.
 The section of the conductors must be at
least 1mm
local standards and legislation).
 Connect the 2nd stage thermostat (TR) to the
terminals T6 - T8 removing the jumper.
Test the burner by checking the shut-down of the
burner by opening the thermostats and the lockout
by blocking out the flame sensor.
WARNING
If the cover is still on, remove it and proceed with
the electric wiring following the wiring diagrams.
Use flexible cables in compliance with EN 60 335-
1 standards.
CAUTION
This control box uses 2-wire flame sensors.
Do not connect sensors other than the FD01 (part
code 20135304).
WARNING
7
GB
2
. (Unless requested otherwise by
Fig. 8
20138365