20045701
22
Burner operation
5.6
Electrodes setting
To adjust the electrodes proceed as follows:
³
loosen the screw 1)(Fig. 18) and move the electrodes ahead;
³
fix the screw 1).
5.7
Fuel heating
In order to obtain smooth starting and operation across its output
range the burner is fitted with an electric resistance, which heats up
the light oil in the nozzle line.
This resistance is energized when the thermostat calls for heat and
after a delay of approximately two minutes depending on room
temperature, the motor will start.
The resistance remains energised during working and cuts out
when burner shuts-down.
5.8
Burner start-up cycle
Lock out is indicated by a lamp on the control box (3, Fig. 1, page 7)
WARNING
The installation and disassembly operations must
be carried out with the electricity supply discon-
nected.
WARNING
Measures must be respected!
5
/
32
”
±
1
/
64
”
D5230
3
/
32
” -
7
/
64
”
Fig. 18
1
Thermostat
Motor
Ignition transformer
Flame
Lock-out lamp
Lock-out due to failure to light
B
Normal
0 ÷ 150s
D5329
0 ÷ 150s
~
12s
~
12s
~
5s
Resistance
Valve
B
