Checking And Adjusting The Ignition And Ionisation Electrodes - Viessmann VITODENS 200-W Service Instructions Manual

Further details regarding the individual steps
2. Undo three retaining clips B on ther-
mal insulation ring C and then
remove thermal insulation ring C.
3. Release four Torx screws D and
remove burner gauze assembly E.
4. Remove old burner gauze assembly
gasket F.

Checking and adjusting the ignition and ionisation electrodes

6
+2
0
A
A Ignition electrodes
1. Check the electrodes for wear and
contamination.
2. Clean the electrodes with a small
brush (not with a wire brush) or sand-
paper.
!
Please note
Wire gauze:
Do not damage.
Commissioning, inspection, maintenance
5. Insert a new burner gauze assembly
with a new gasket and secure with
four Torx screws.
Note
Torque: 4.5 Nm
6. Refit thermal insulation ring C and
electrodes A.
A
B Ionisation electrode
3. Check the electrode gaps. If the gaps
are not as specified or the electrodes
are damaged, replace the electrodes
together with new gaskets and adjust
them as required. Tighten the elec-
trode fixing screws with 2 Nm.
(cont.)
14
±1
B
21