2. Fit rotary brush D (accessories) to
a rechargeable power screwdriver
or drill and clean the heat exchan-
ger with the rotary brush (at low
speeds). Remove all deposits,
including the sides of the indirect
coils.
!
Please note
To prevent damage,
cover the control unit.
Danger
Cleaning work may lead to
eye injuries.
Wear protective goggles.
3. Remove dirt from the heat exchan-
ger gaps with a vacuum cleaner
with angled nozzle E (acces-
sories).
4. Thoroughly flush the combustion
chamber with water. Ensure that
the drain hose continues to termi-
nate in the vessel (see points 1).
Checking the condensate drain and cleaning the siphon
1. Check at siphon A, that the con-
densate can freely drain off.
2. Remove the retaining clip and the
siphon.
3. Clean the siphon.
4. Fill siphon A with water and fit it to
the boiler. Position the retaining
clip.
Checking the neutralising system (accessories)
Check the pH value of the condensate with a pH test strip. Replace the granu-
late if the pH value < 6.5.
To Next Page
Loading...
