Maintenance; Sweeping - DeDietrich GT 430 Service Manual

10 Maintenance

The operations described below shall only be performed with the boiler and power supply off.

10.1 Sweeping

The boiler will only operate efficiently if the exchange surfaces
are kept clean.
10.1.1 Cleaning the flue gas circuit
- Cut the power supply to the boiler.
- Remove the upper front panel.
03/12/07 - 300011893-001-B
The boiler should be cleaned as soon as required and as the
chimney, at least once a year or more, depending upon applicable
regulations and specific needs.
- Open the sweeping doors (upper doors) by unscrewing the 3 nuts
using a 19 mm spanner
- Remove the baffle plates from the upper flue ways.
- Carefully sweep the flue ways with the brush supplied for that
purpose.
- Brush the baffle plates.
- If possible, use a vacuum cleaner.
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