Cleaning The Air Separation System; H Danger; Danger Of Burning Or Scalding - Vaillant ecoTEC VU 656/4 Installation And Maintenance Instructions Manual

8 Inspection and maintenance
After that, both can be cleaned in the dismounted state.
Take note also of the accompanying installation manual
for the siphon cartridge.
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Fig. 8.8 Cleaning the condensate siphon
• Dismount the siphon cartridge (1) below the boiler.
• Clean the siphon cartridge.
• Remove the clamp below the heat exchanger.
• Pull off the connecting bracket.
• Dismount the siphon and the corrugated pipe (pay
attention to the position of the latching tabs).
• Clean the components.
Caution!
a
Risk of damage!
Take care that no water splashes onto other
components!
After cleaning, refit all the components in the
condensate duct (see the siphon installation manuals).
Be absolutely sure to fill the siphon cartridge with
water. Insert new seals at all points and check the
condensate duct for leaks.
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8.5

Cleaning the air separation system

Danger!
H

Danger of burning or scalding!

All water-carrying components present a
danger of injury and scalding. Only carry out
work on these components if they have cooled
down.
• Drain the boiler (see Chap. 8.2.2).
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2
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Fig. 8.9 Removing the air separator
• Unfasten the 1 1/2 " nut (4) on the lower outlet.
• Unfasten the 1/4 " cap nut (1) on the upper inlet
(unfasten the cable harness).
• Push the casing (3) to the front.
• Pull out the complete assembly to the front.
Dismount the pipe (2) only if necessary.
Fig. 8.10 Cleaning the filter
• Unscrew the brass cover (4) of the steel casing (6).
• Pull out the filter (5) upwards.
• Rinse out the air separator with hot water.
• Clean the filter with hot water or replace it with a new
one.
• Insert the filter into the air separator.
Installation and maintenance instructions ecoTEC 0020029173_01
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