Unit installation

24
Checking the burner gauze assembly
1.
Undo fitting A on the gas supply
pipe.
2. Undo the screws on the boiler door
and open the door.
3. Check the wire mesh of burner gauze
assembly
B
and thermal protection
ring
C
for damage. Slight wavy
deformations of burner gauze
assembly
B
are OK.
4.
Replace burner gauze assembly B
and thermal protection ring
C
if
required.
Installation instructions
Replacing burner components
Checking the ignition electrodes and ionisation electrode
Ignition electrodes
7
0.5
+
-
3.5
0.5
+
-
5
1
+
-
Ionisation electrode
12
2
±
Check the ignition electrodes and the
ionisation electrode for correct gap
towards the burner gauze assembly and
damage (replace if required).
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 907 GB