F Inspection And Maintenance Work - Vaillant ecoTEC pro 24 Installation And Maintenance Instructions Manual

Appendix
F Inspection and maintenance work
The table below lists the manufacturer requirements with respect to minimum inspection and maintenance intervals. If na-
tional regulations and directives require shorter inspection and maintenance intervals, you should observe these instead of
the intervals listed. Each time inspection and maintenance work is carried out, carry out the required preparatory and com-
pletion work.
# Maintenance work
1 Check the tightness of the air/flue pipe, make sure that it is not damaged
and has been attached correctly, and check that it has been set up cor-
rectly
2 Removing dirt from the product and the vacuum chamber
3 Visually check the heat cell to ascertain its condition and detect any cor-
rosion, rust or damage, and carry out maintenance work, if required
4 Checking the gas connection pressure at maximum heat input
5 Checking the CO₂ content and, if necessary, adjusting it (air index setting)
6 Recording the CO
7 Check that the connections/electrical plug connections have been con-
nected correctly/function correctly (product must be voltage-free)
8 Check that the gas stopcock and service valves function correctly
9 Checking the condensate trap for dirt and cleaning it
10 Checking the pre-charge pressure of the expansion vessel
11 Checking the insulating mats in the combustion area and replacing dam-
aged insulating mats
12 Cleaning the heat exchanger
13 Check the burner for damage
14 If the water volume is insufficient (domestic hot water) or the outlet tem-
perature is insufficient, check the secondary heat exchanger
15 Cleaning the filter in the cold water inlet
16 Check the impeller sensor for dirt/damage
17 Filling the heating installation
18 Run the test operation on the product/heating installation including
domestic hot water generation (if available) and, if required, purge the
product/heating installation
19 Visually check the ignition and burner behaviour
20 Re-checking the CO₂ content (the air ratio)
21 Check the product for gas, flue gas and water leaks
22 Completing inspection and maintenance work
40
content (the air ratio)
2
Interval
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
Annually
If required, at least every
2 years
If required, at least every
2 years
If required, at least every
2 years
If required, at least every
2 years
If required, at least every
2 years
If required, at least every
2 years
If required, at least every
2 years
If required, at least every
2 years
Annually
Annually
If required, at least every
2 years
Annually
Annually
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