65
COMMISSIONING AND MAINTENANCE
− Rotate the front closure (6) of the smoke chamber.
9
Be careful not to damage the side panel of the thermal unit.
6
− remove the turbulators (7) and check them for wear and
fin angle (replace as necessary);
− use a flue brush (8) or other suitable tool;
7
8
− Take out the side panel (9) by removing the fixing screw.
− Remove the deposits accumulated in the smoke box
through the inspection door (10) located on the back.
Check the wear status of the seal and replace it, if nec-
essary.
− Check at regular intervals that the condensate drain (11)
is not blocked.
11
10
9
Proceed as follows on completion of cleaning:
− refit the turbulators in the flue gas pipes, making sure
that they are correctly seated;
− replace all removed components in the opposite order.
9
Before repositioning the smoke chamber closure, replace
the silicone fibreglass braided seal.
4.8.3
Condensate drain siphon cleaning
− Remove the front panel from the boiler and locate the
condensate discharge syphon (1)
2
1
− Remove the split pin (2), detach the corrugated conden-
sate drain hose, and remove the siphon. Unscrew the
two caps (3) to disassemble the siphon
− Remove the float (4) and clean all internal components.
3
3
4
Once the maintenance operations are complete, refit the com-
ponents working in the opposite direction of what was de-
scribed.
9
Fill the siphon with water before you start up the boiler to
prevent combustion gases escaping into the room during
the first few minutes of boiler functioning.
