Vaillant ECOTEC PLUS VU 80 Installation And Maintenance Instructions Manual page 51

13.6 Separate the gas pipework (VU GB 1006/5 - 5 and
VU GB 1206/5 - 5)
> Undo the four screws on the flange connection (3) to the
gas valve.
> Move the gas pipe (4) to the side.
Danger!
a
Risk of poisoning and fire caused by
escaping gas!
The gas pipe can be damaged.
> Ensure that you do not damage the seals
on the gas pipe when removing and
installing the gas-air mixture unit.
ecoTEC plus installation and maintenance instructions 0020134823_01
Inspection and maintenance
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13.7 Removing the gas-air mixture unit
> Remove the plug for the ionisation line from the ionisa-
tion electrode (11), and remove the plug for the ground
connection from the earthing lug.
> Remove the ignition line plug and the ground connection
of the ignition electrode (9) from the ignition trans-
former.
i
The cable is firmly connected to the ignition
electrode.
> Remove the plugs (12 and 13) from the fan motor by
pushing in the latching lug.
> Remove the plug from the gas valve (10).
806/5-5
1006/5-5
1206/5-5
13
12
5
6
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6
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