Inspection and maintenance 9
0020134823_07 ecoTEC plus Installation and maintenance instructions
31
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 assembly
(10)
.
11. Remove the plug from the upper safety cut-out
(8)
.
12. Undo the screws
(6)
on the burner door.
13. Remove the complete gas-air mixture unit
(5)
from the
heat exchanger
(7)
.
14. Check the burner and the heat exchanger for damage
and dirt.
9.6
Cleaning the heat exchanger
1.
Protect the electronics box against sprayed water.
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)
with a sharp jet of water or use a plastic brush.
◁
The water flows out of the heat exchanger through
the drain.
4.
Install the condensate trap.
9.7
Checking the burner
1
4
3
2
1.
Check the surface of the burner for damage. If you no-
tice any damage, replace the burner, including the seal
(
→
Page 35).
2.
Check the insulating mat
(2)
on the burner door. If you
notice any signs of damage, replace the insulating mat
(
→
Page 35).
9.8
Replacing the ignition and ionisation
electrodes
1
Caution.
Risk of material damage caused by dam-
age to the ignition and ionisation elec-
trodes.
The electrodes may become damaged during
installation.
▶
Install the new electrodes only after first
installing the gas-air mixture unit.
Содержание ecoTEC plus VU GB 5-5 Series
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