General description
8
Code No. 549758
Rev. nº 10/0418
1.2. Machines with gas heating. Diagram and description of the burner
1.2.1. Models ED260, ED340, ED460 and ED660
Diagram of the burner
(Fig. 1.1)
A
.......... Connection point
B
.......... Control
C
.......... Solenoid valve
D
.......... Injector
E
.......... Venturi pipe
F
.......... Ducting
G
......... Ignition electrode
H
.......... Ionisation electrode
J
.......... Burner
Fig. 1.1
Description of operation (Fig. 1.1)
When the dryer control requests heating, the
burner control system (
B
) activates the ignition
electrode (
G
) to generate a spark;
simultaneously power is fed to the solenoid
valve (
C
) to open the gas flow.
The gas enters the burner via a single nozzle
(
D
).
The ionisation electrode (
H
) detects the flame.
If the presence of a flame has not been
detected after a certain time following the
ignition order, the solenoid valve closes, an
alarm report is issued and the burner control
enters safety mode.
Fig. 1.2
For further information refer to paragraph 1.6
.
Protection, safety and control elements.
