Cleaning The Heat Exchanger - Vaillant ecoTEC plus 806 VU GB 806/5-5 Installation And Maintenance Instructions Manual

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11
10
9
8
806/5-5
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12
10
8
11
1006/5-5
1206/5-5
Danger!
Risk of poisoning and fire caused by es-
caping gas!
The gas pipe may become damaged.
▶
Ensure that you do not damage the seals
on the gas pipe when removing and in-
stalling the gas-air mixture unit.
7. Remove the ionisation line plug from the ionisation elec-
trode (11), and remove the ground connection plug from
the earthing lug.
8. Remove the ignition line plug and the ground connec-
tion for the ignition electrode (9) from the ignition trans-
former.
Note
The cable is firmly connected to the ignition
electrode.
0020134823_04 ecoTEC plus Installation and maintenance instructions
Inspection and maintenance 9
9. Remove the plugs (12) and (13) from the fan motor by
pushing in the latching lug.
10. Remove the plug from the gas valve (10).
11. Remove the plug from the upper safety cut-out (8).
12. Undo the screws (6) on the burner door.
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13. Remove the complete gas-air mixture unit (5) from the
heat exchanger (7).
5
14. Check the burner and the heat exchanger for damage
and dirt.
6
9.6

Cleaning the heat exchanger

1. Protect the electronics box against sprayed water.
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1
2. Remove the lower section of the condensate trap to
ensure that any existing condensate neutraliser does
not become damaged.
3. Rinse away any loose dirt in the heat exchanger (1)
5
with a sharp jet of water or use a plastic brush.
6
◁
The water flows out of the heat exchanger through
the drain.
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4. Install the condensate trap.
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