Viessmann Vitotwin 300-W - Page 74

74
A
B
A
Ignition electrodes
B
Ionisation electrode
1. Pull the cables from the electrodes.
2. Release the nuts and remove the
electrodes.
3. Check the electrodes for wear and
contamination.
4. Clean the electrodes with a small
brush (not with a wire brush) or sand-
paper.
5. If the electrodes are damaged,
replace the electrodes with the gas-
ket. Tighten the electrode fixing
screws with 1.5 Nm.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5618 294 GB