Replacing components
64
ecoTEC plus installation and maintenance instructions 0020134823_01
15
>
On the VU GB 806/5-5 only:
Use the three nuts to
secure the burner and the bracket for the insulation pro-
tection plate. Tightening torque: 4 Nm
>
On the VU GB 1006/5-5 and VU GB 1206/5-5 only:
First, use two nuts to secure the burner. Tightening
torque: 4 Nm
>
On the VU GB 1006/5-5 and VU GB 1206/5-5 only:
Use the four remaining nuts to secure the burner and
the bracket for the insulation protection plate. Tighten-
ing torque: 4 Nm
>
When installing the nuts, ensure that the openings in the
insulation protection plate for ignition and monitoring
electrodes lie on top of the corresponding bolts in the
burner door.
>
Install the insulating mat. Ensure that the insulating mat
lies against the burner door.
>
Install the insulation protection plate by turning the bay-
onet fitting until it clicks into place.
>
Install the ignition and monitoring electrodes. Use new
seals for this. Tightening torque: 2.8 Nm
>
Install the gas-air mixture unit (
¬ section 13.5.6
).
>
Check that the product functions correctly and check the
leak-tightness (
¬ section 13.5.9
).
15.5
Replacing insulating mats
If the safety cut-out on the burner door has been triggered,
the insulating mat between the burner door and burner
room may be damaged.
>
Check and replace the insulating mat.
To replace the insulating mat, proceed in the same way as
when removing the burner (
¬ section 15.4
). It is not neces-
sary to remove the burner.
15.6
Replacing the fan
>
Remove the gas-air mixture unit (
¬ section 13.5.1
).
>
Remove the burner (
¬ section 15.4
).
1
15.4 Replacing the fan
>
Unscrew the four screws (
1
) from the fan.
>
Install a new fan and burner in the same position as
before.
15.7
Replacing the heat exchanger
>
Drain the boiler (
¬ section 13.2.2)
.
>
Remove the gas-air mixture unit (
¬ section 13.5.1
).
>
Unscrew the flow and return line in the front area of the
underside of the boiler.
1
15.5 Loosen the clamps on the flow and return pipes
>
Loosen the clamps (
1
) on the sealing collars of the flow
and return pipes in the base area.
Summary of Contents for ECOTEC PLUS VU 80
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