Baxi ECOGEN 24/1.0, Installation & Servicing Instructions Manual

Page: 57 / 94

4. Examine and clean or replace the electrodes as necessary. The spark gap should be 3.5 ­ 4.0 mm, adjust the earth pin if required ( Fig. 54 ).
5. Always use the new gaskets provide when replacing the electrodes.
6. Replace in the reverse order.
Supplementary Burner and Heat Exchanger, Igniter and Flame Sensing Electrodes ( Fig. 55 )
1. Detach the supplementary Igniter plug.
2. Detach the flame sense lead from the wiring harness.
3. Remove the four M5 screws at the right of the supplementary air gas manifold.
4. Undo the six nuts around the burner door perimeter noting the position of the earth lead.
5. Carefully with draw the burner door and manifold.
6. Clean any debris form the heat exchanger and check that the gaps between the tubes are clear.
7. Inspect the burner, insulation and the electrodes, clean or replace if necessary. Reset the electrode spark gap to between 3.5 ­ 4.0 mm by adjusting the earth pin if
required ( Fig. 54 ).
8. If it is necessary to replace electrodes always use the gaskets provided.
9. Reassemble in the reverse order remembering to attach the earth wire.
Complete the relevant Service Interval Record section of the Benchmark Commissioning Checklist at the rear of this publication and then hand it back to the user.
Fig. 53
Fig. 54
Fig. 55
page 60
14.0 Changing Components
IMPORTANT: When changing components ensure that both the gas and electrical supplies to the boiler are isolated before any work is started.