4.2.3 Annual check
The boiler must be cleaned and inspected at appropriate intervals depending on the
service hours and fuel quality.
For fuels with a low ash content, annual cleaning and inspection (2000 to 2500 service
hours) is usually sufficient. For less efficient fuels and fuels with a high ash content
(indicated by short emptying intervals for the ash container), the work should be
carried out more frequently accordingly.
Cleaning the flue gas collection chamber and the heat exchanger
❒ Remove the insulating cover and turn the seal screws on the cleaning cover
anticlockwise using the tool supplied to loosen
❒ Remove the cleaning cover
❒ Clean the flue gas collection chamber and the opening to the induced draught fan
with a brush
❒ Remove any soot which has accumulated
➥ Recommendation: use an ash vacuum
❒ Remove the internal heat exchanger cover
❒ Clean the flue pipes and the combustion chamber underneath with a cleaning
brush
4
Boiler Servicing
Inspection and cleaning
30 Froling GesmbH | A-4710 Grieskirchen, Industriestraße 12 | www.froeling.com