Maintenance; Checking And Cleaning The Main Components; Boiler - DeDietrich GT 224 Installation And Service Manual

4. Maintenance

4 Maintenance

4.1 Checking and cleaning the main components

4.1.1 Water level
Regularly check the level of water in the installation. Top it up, if need
be, avoiding the abrupt input of cold water into the hot boiler. If this
operation is repeated several times per season, locate the leak and
repair it.
4.1.2 Safety devices
Check that the safety devices are operating correctly (particularly the
heating circuit valve).

4.2 Boiler

The boiler will only operate efficiently if the exchange surfaces are
kept clean.
The boiler must be cleaned as often as necessary and, like the
chimney, at least once a year or more in accordance with the
prevailing regulations and the insurance contract taken out.
Cleaning operations are always done with the boiler and
the electricity supply switched off.
To access the various parts to be serviced and checked, it is
necessary to remove the front panel/cover of the boiler. See drawing
opposite.
Cleaning operations: See following pages.
After cleaning and servicing:
- Close the door of the combustion chamber.
- Service the burner.
- Replace the front cover.
- Carry out tests to ensure correct operation and make combustion
measurements.
20
Do not drain the installation, except in cases of absolute
necessity. For example: Several months' absence with the
risk of ice in the building.
GT 220 - GT 2200 22/01/09 - 300008281-001-E