Vaillant ecoTEC sustain 24, Installation And Maintenance Instructions Manual

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Installation and maintenance instructions ecoTEC sustain 0020253094_05
12.10 Cleaning the condensate siphon
A B
C
1
2
3
1. Unclip the lower section of the siphon (1) from the up-
per section of the siphon (2) .
2. Remove the float (3) .
3. Flush out the float and lower section of the siphon with
water.
4. Fill the lower section of the siphon with water up to 10
mm below the upper edge of the condensate discharge
pipe.
5. Re-insert the float (3) .
Note
Check that the float is present in the con-
densate siphon.
6. Clip the lower section of the siphon (1) into the upper
section of the siphon (2) .
12.11 Cleaning the strainer in the cold water inlet
Validity: Product with integrated hot water generation
1. Close the main cold water line.
2. Drain the product on the domestic hot water side.
3. Remove the connector from the connection for the pro-
duct's cold water pipe.
4. Clean the strainer in the cold water inlet without remov-
ing it.
12.12 Cleaning the heating filter
1
2
3
2
5
4
1. Drain the product. (
→
Page 39)
2. Remove the temperature sensor (3) .
3. Remove the upper clip (1) .
4. Remove the lower clip (4) .
5. Remove the flow pipe (2) .
6. Remove the heating filter (5) and clean it.
7. When reinstallling the components, carry out the steps
described above in reverse.
12.13 Installing the compact thermal module
1
8
5
4
3
7
6
2
1. Connect the compact thermal module (5) to the heat
exchanger (6) .
2. Tighten the four nuts (7) in a cross-wise pattern until the
burner flange fits closely and uniformly onto the mating
surfaces.
–
Tightening torque:6 Nm, if a torque spanner is avail-
able.
3. Reconnect the plugs (1) to (4) and (8) .
4. Connect the gas pipe using a new seal. In the process,
secure the gas pipe against twisting.
5. Open the gas stopcock.
6. Make sure that there are no leaks.