ZIC · Edition 09.22
EN-10
– Maintenance work on the burner must be
carried out by authorized trained personnel only.
DAnGeR
Risk of burning!
– Outflowing flue gases and burner components
are hot.
➔
We recommend that all the gaskets removed during
maintenance work be replaced. The appropriate
gasket set is available separately as a spare part.
1
Check the ionization and ignition cables.
2
Measure the ionization current.
➔
The ionization current must be at least 5 µA and
must not vary.
+
μ
A
–
Z
I
3
Disconnect the system from the electrical power
supply.
4
Shut off the gas and air supply – do not change
the restrictor settings.
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 ZICW
➔
Do not damage the surface of the insulation.
➔
Avoid the formation of dust.
ZIC and ZICW
1
2
3
4
➔
If the burner insert is dismantled, the gas housing
gasket will have to be renewed.
5
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 10 (7.1 Checking the spark
electrode and flame rod).
6
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
