Inspection and maintenance
Installation and maintenance instructions ecoTEC plus 0020134833_01
65
12
12.4.2 Cleaning the heat exchanger
b
Caution.
Risk of damage from water spray.
If you fail to protect the electronics box
adequately, water can penetrate the box
during cleaning and may damage the elec-
tronics.
>
Protect the folded down electronics box
against sprayed water.
>
Remove the compact thermal module (
¬ section 12.4.1
).
2
3
4
1
12.5 Cleaning the heat exchanger
b
Caution.
Risk of damage to the heat exchanger.
>
You must neither loosen nor tighten the
four screws (
1
).
>
Clean the heating coil (
3
) of the heat exchanger (
4
)
using water or, if required, commercially-available white
vinegar.
>
Allow the vinegar to act on the heat exchanger for 20
minutes.
>
Rinse away any loose dirt with a sharp jet of water or
use a plastic brush.
>
Do
not
point the water jet directly at the insulating sur-
face (
2
) on the back of the heat exchanger.
The water flows out of the heat exchanger through the con-
densate siphon.
12.4.3
Checking the burner
1
12.6 Checking the burner
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.
Содержание ecoTEC plus VUI
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