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10.13 Cleaning the heating filter
1
2
3
2
5
4
1.
Drain the product. (→ Page 29)
2.
Remove the temperature sensor (3).
3.
Remove the upper clip (1).
4.
Remove the lower clip (4).
5.
Remove the supply pipe (2).
6.
Remove the heating filter (5) and clean it.
7.
When reinstallling the components, carry out the steps
described above in reverse.
10.14 Installing the compact thermal module
7
6
5
4
3
2
1
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.
0020258016_00 ecoTEC pure Installation and maintenance instructions
Decommissioning 11
–
Tightening torque: 6 Nm
3.
Reconnect the plugs (1) to (4).
4.
Connect the gas pipe using a new seal. In the process,
secure the gas pipe against twisting.
5.
Open the gas isolator cock.
6.
Make sure that there are no leaks.
7.
Check that the sealing ring in the air intake pipe is posi-
tioned correctly in the seal seat.
8.
Reconnect the air intake pipe to the intake nozzle.
9.
Secure the air intake pipe with the retaining screw.
10. Check the gas flow pressure.
10.15 Checking the product for leak-tightness
▶
Check that the product is leak-tight. (→ Page 21)
10.16 Checking the admission pressure of the
expansion vessel
1.
Drain the product. (→ Page 29)
2.
Measure the pre-charge pressure of the expansion ves-
sel at the vessel valve.
Conditions: Pre-charge pressure < 0.075 MPa (0.75 bar)
▶
Fill the expansion vessel in accordance with the static
height of the heating installation; ideally with nitrogen,
otherwise with air.
▶
Ensure that the drain valve is open when filling.
3.
If water escapes from the valve of the expansion ves-
sel, replace the expansion vessel (→ Page 25).
4.
Fill and purge the heating installation. (→ Page 19)
10.17 Completing inspection and maintenance
work
Once you have completed all maintenance work:
▶
Check the gas connection pressure (gas flow pressure).
(→ Page 20)
▶
Check the CO₂ content. (→ Page 27)
▶
If required, reset (→ Page 22)the maintenance interval.
11 Decommissioning
11.1
Permanently decommissioning the product
▶
Press the on/off button.
◁
The display goes out.
▶
Disconnect the product from the power mains.
▶
Close the gas isolator cock.
▶
Close the cold water stop valve.
▶
Drain the product. (→ Page 29)
12 Recycling and disposal
Disposing of the packaging
▶
Dispose of the packaging correctly.
▶
Observe all relevant regulations.
31
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