Vaillant ecoTEC sustain 24, Инструкция по установке и обслуживанию

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Installation and maintenance instructions ecoTEC sustain 0020253094_05
Appendix
A
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 Interval
1 Record all of the analysis results in the Benchmark Checklist in these
instructions Annually
2 Ask the end user whether any significant problems occur when operating
the product Annually
3 Use the diagnostics system to check the product's fault history Annually
4 Visually inspect whether the air/flue pipe and its opening have been in-
stalled correctly in accordance with the set-up instructions Annually
5 Check that the unit has been installed correctly and the connections have
been secured Annually
6 Check all of the connections for tightness Annually
7 Check that the condensate pipe is in good condition, that it is leak-tight
and that the drain is correct Annually
8 Check whether all of the externally routed condensate pipes are dimen-
sioned correctly and have been insulated sufficiently (frost protection) Annually
9 Check the general condition of the product and, if required, eliminate any
faults that are found Annually
10 Visually check the heat cell to ascertain its condition and detect any cor-
rosion, rust or damage, and carry out maintenance work, if required Annually
11 Check whether the gas flow rate corresponds with the specifications on
the data plate and lies within the tolerances specified in these instructions Annually
12 If the gas flow rate lies outside of the tolerances specified in these in-
structions, eliminate the fault in accordance with the regulations and the
current technology Annually
13 Carry out the combustion analysis: Measure the CO content, CO
₂
content
and the CO/CO
₂
ratio. For products with a rear air/flue connection: The
combustion analysis can only be carried out when the unit casing has
been removed; it is not necessary to test these products for flue gas recir-
culation
Annually
14 Check the product's recirculation at the supply air test point on the air/flue
pipe. If required, inspect the entire air/flue system and, if necessary, cor-
rect the fault Annually
15 Disconnect the product from the electrical installation Annually
16 Check and, if required, correct the electrical installation Annually
17 Close the installation's gas stopcock and, if required, service valves Annually
18 Checking the admission pressure of the expansion vessel at regular intervals
39
19 Checking the insulating mats in the combustion area and replacing dam-
aged insulating mats at regular intervals
20 Cleaning the heat exchanger at regular intervals
37
21 Checking the burner at regular intervals
37
22 Cleaning the condensate siphon Annually
38
23 Cleaning the strainer in the cold water inlet at regular intervals
38
24 Check the impeller sensor for dirt/damage at regular intervals
25 If the water volume is insufficient (domestic hot water) or the outlet tem-
perature is insufficient, check the secondary heat exchanger at regular intervals
26 Opening the service valves Annually
27 Check the quality of the heating water: Clarity (clouding), correct inhibitor
and pH value Annually
28 Filling and purging the heating installation at regular intervals
29
29 Starting a test operation after maintenance work Annually
30 Visually check the ignition and burner behaviour Annually
31 Measure the CO content, CO
₂
content and the CO/CO
₂
ratio again Annually