Maintenance Tasks; Cleaning The Burner - Vaillant atmoCRAFT VK 654/9 Installations- Und Wartungsanleitung

8.4

Maintenance tasks

8.4.1 Cleaning the burner

Caution!
If possible, do not use any chemical cleaning
agents, otherwise deposits could build up on the
monitoring and ignition electrodes. The unit
may switch to fault condition.
If you do use chemical cleaning agents, make
sure that the electrodes are thoroughly cleaned
afterwards.
Fig. 8.2 Dismantling the ignition electrode
For maintenance of the burner and the heat exchanger,
first remove the burner. Proceed as follows:
• Remove the front cover.
• Release the connection screws on the gas inlet line.
Caution!
Always replace the seals by new original ones
when assembling.
• Remove the ignition cable connection from the
electronic box.
• Remove the earthing cable connection.
• Release the nuts on the burner bracket.
• Pull out the plug from the gas fitting.
• Separate the ionisation cable at the plug connection.
Installation and maintenance manual atmoCRAFT
Inspection and maintenance 8
Fig. 8.3 Burner removal
• Pull the burner out.
1
2
Fig. 8.4 Cleaning the burner
• Clean the burner lances in the area of primary air
intake and the outlet openings using a paint brush and
a brush (not a wire brush!).
• Clean the main burner nozzles, the ignition electrode
(1), the monitoring electrode (2) and the ignition
burner.
• Thoroughly clean the baseplate.
GB 35