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Vaillant ecoVIT exclusiv VKK 656-4 Manual

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Care and maintenance 5
0020258609_00 ecoVIT exclusiv Operating instructions 11
5.3.2 Filling the heating installation
Caution.
Risk of material damage due to heating
water that is extremely calciferous or cor-
rosive or contaminated by chemicals.
Unsuitable tap water damages the seals
and diaphragms, blocks components in the
product and heating installation through
which the water flows and causes noise.
▶ Only fill the heating installation with suit-
able heating water.
▶ In case of doubt, ask a competent person
for details.
1. Ask a competent person where the filling cock is loc-
ated.
2. Connect the filling cock to a hot water supply in the way
you were told by the competent person.
3. Open all radiator valves (thermostatic radiator valves) of
the heating installation.
4. Open the hot water supply.
5. Slowly open the filling cock.
6. Fill it with water until the required filling pressure is
reached.
7. Close the hot water supply.
8. Purge all radiators.
9. Then check the filling pressure on the display.
10. Top up with more water if necessary.
11. Close the filling cock.
5.4 Checking the condensate discharge pipe
and tundish
The condensate discharge pipe and tundish must always be
penetrable.
▶ Regularly check the condensate discharge pipe and tun-
dish for faults and, particularly, for blockages.
You must not be able to see or feel any obstructions in the
condensate discharge pipe and tundish.
▶ If you notice a fault, have it eliminated by a competent
person.
5.5 Carrying out the flue gas analysis
Note
Measurement and inspection work must only be
carried out by the chimney sweep or competent
person.
2
1
1 + button 2 − button
1. Switch on the chimney sweep function by pressing the
− and + buttons for the DIA system at the same time.
◁ Shown in the display: S.Fh = Heating chimney
sweep mode; S.Fb = Domestic hot water chimney
sweep mode
◁ The product now works at maximum load for 15
minutes. If you do not press any buttons for 15
minutes or if a flow temperature of 85 °C is reached,
the chimney sweep function is automatically
switched off.
2. Take the measurements at the earliest after three
minutes of the product operating.
Applicability: VKK 226/4, VKK 286/4, VKK 366/4
▶ Remove the upper casing (→ Installation instructions).
▶ Use the test points that are underneath for the meas-
urement (→ Installation instructions).
Applicability: VKK 476/4, VKK 656/4
12
1 Flue gas test point 2 Fresh air test point
▶ Use the test points on the adapter for the measure-
ment, as shown.
3. Unscrew the sealing cap from the flue gas test point (1).
4. Remove the sealing cap from the combustion air test
opening (2).
5. Take the measurements in the flue gas route at the flue
gas test point.
… 11 …


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