Maintenance; Boiler - DeDietrich GT 300 A Operating Instructions Manual

1 Boiler

It is not advisable to drain an installation, except in case of
absolute necessity. Check the water level of the installation and
top it off if necessary, avoiding a sudden inlet of cold water in the
hot boiler.
Check for system leaks.
• Cleaning of the flue gas circuit :
- switch off the electricity supply to the boiler
- unhook the front cover
20

Maintenance

Professional water treatment is recommended.
The good performance of the boiler depends on cleanliness.
Cleaning the boiler must be carried out as often as required and at
least, as for the flue once a year. The following operations are always
carried out with the boiler and the power supply shut off.
Ensure all access cover and doors are in place prior to
starting the boiler-burner.
GT 300 A/II 06/10/06 - 94863873 - 85534150E