eta eHACK 20-50 kW, Service Manual, Page: 23 / 76

Cleaning and maintenance Cleaning (customer)
23
Remove cover around the ash duct
Remove the cover on the front around the ash duct.
Fig. 2-41: Cover
Removing the maintenance cover
Remove the insulation over the maintenance cover.
Fig. 2-42: Insulation
Remove the maintenance cover.
Fig. 2-43: Maintenance cover
Clean flue gas recirculation ducts
Clean the inside of the flue gas duct with the clean-
ing brush. The ash can to fall down.
Fig. 2-44: Clean the inside
Remove the maintenance cover and the supplied seal
on the primary air valve.
Fig. 2-45: Remove maintenance cover
Using the cleaning brush and an ash vacuum cleaner,
remove ash from the duct.
Fig. 2-46: Clean duct