Inspection and maintenance
Installation and maintenance instructions ecoTEC 0020173113_01
57
12
As the burner (
1
) is maintenance-free, it does not require
cleaning.
>
Check the surface of the burner for damage.
>
If necessary, replace the burner.
12.3.4
Cleaning the condensate trap
a
Danger!
Risk of death caused by improper main-
tenance.
If you operate the boiler with an empty
condensate trap, flue gas can escape into
the room air.
>
Top up the condensate trap after each
cleaning session.
1
12.7 Cleaning the condensate trap
>
Remove the lower part (
1
) of the condensate trap by
turning the bayonet fitting anti-clockwise.
>
Clean the bottom of the condensate trap by flushing it
out with water.
>
Fill the lower part of the condensate trap with water up
to about 10 mm below the upper edge.
>
Re-fit the lower part of the condensate trap.
>
Flush through all discharge pipe work (ensure route and
termination are correct and it is unlikely to freeze up in
severe weather).
12.3.5 Cleaning the filter in the cold water inlet
(VUW boilers only)
There is a filter in the cold water inlet of the boiler which
must be cleaned during maintenance work.
1
12.8
Removing the filter from the cold water inlet
>
Close the cold water stop valve.
>
Drain the hot water from the boiler.
>
Undo the nut (
1, ¬ fig. 12.8
) of the cold water supply line
from the casing of the boiler.
2
1
12.9
Removing the pipe with the cold water filter
>
Fold the electronics box forwards (
¬ section 8.2
).
>
Remove the clamp (
1, ¬ fig. 12.9
) from the flow sensor.
>
Pull off the cold water pipe from the flow sensor.
>
Remove the pipe (
2, ¬ fig. 12.9
) from the boiler.
>
Rinse the filter under a jet of water holding against the
direction of flow.
>
Refit the pipe with the cleaned filter in the reverse order.
>
Always use new seals.
