40
Checking the ignition electrodes and ionisation electrode
Ignition electrodes
8.5±1
7
1.5+
6
1
±
Ionisation electrode
15.5±1
Check ignition electrodes and ionisation
electrode for correct gap to the burner
gauze assembly and for possible dam-
age (replace if required).
Cleaning the burner
A
B
C
D
E
F
1.
Undo fitting
C
on gas supply pipe
B
.
2.
Undo Venturi mixing pipe
D
from fan
E
.
3.
Remove Venturi mixing pipe
D
with
gas train
A
and gas supply pipe
B
, and if necessary pull out con-
necting cables/lines.
4.
Pull out connecting cables
a-Ö
and
a-Ö
A from fan
E
and remove the
fan.
5.
Clean the fan housing and impeller
with compressed air.
6.
If required, vacuum the inside and
outside of burner gauze assembly
F
.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5794 780 GB
Summary of Contents for 7502860
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