BIO · Edition 09.22
EN-12
7.1 Checking the spark electrode and flame
rod
1
2
➔
Ensure that the electrode length does not change.
3
Remove dirt from electrodes or insulators.
L
1
2
3
4
4
If the star
4
or insulator
3
is damaged, replace the
electrode.
➔
Before changing the electrode, measure the total
length
L
.
5
Connect the new electrode with the spark plug
1
using the dowel pin
2
.
6
Adjust spark plug and electrode to the measured
total length
L
.
7
8
➔
Turning the spark plug makes it easier to feed the
electrode into the burner insert.
7.2 Checking the burner
Removing and installing burner insert BIoW
➔
Do not damage the surface of the insulation.
➔
Avoid the formation of dust.
1
2
3
➔
If the burner insert is dismantled, the gas housing
gasket will have to be renewed.
4
Place the burner insert in a safe place.
➔
Depending on the amount of dirt or wear: replace
the spark electrode/flame rod and dowel pin during
servicing – see page 12 (7.1 Checking the spark
electrode and flame rod).
➔
Check burner head for dirt and thermal cracks.
WARnInG
Risk of injury!
– Burner heads have sharp edges.
➔
When replacing any burner components: apply
ceramic paste to the screw connections in order to
avoid cold-setting – see page 14 (9 Accessories).
5
Check the electrode positions.
BIo..50
➔
The front part of the insulator must protrude 4 mm
from the burner air disc.
4 mm
BIo..65 to 140
➔
The insulator must be flush with the front edge of
the burner air disc.
