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Inspection and maintenance
10.2
General work
The following work is not described in any further detail in this
document. However, they should be carried out:
▶ Check the general condition of the heating system.
▶ Perform a visual inspection and function check of the heating system.
▶ Check the supply air and flue gas routing for function and safety.
▶ Check all pipes in contact with gas and water for corrosion.
▶ Replace any corroded pipework.
▶ Check the pre-charge pressure of the expansion vessel.
▶ Check the concentration of antifreeze / additives that may be used in
the heating water annually.
▶ If necessary, check installed water treatment cartridges
(in the backfeed section) to ensure they are functioning correctly and
for wear.
▶ During the annual inspection, check the correct function of all
regulating, control and safety equipment and, where applicable, for
correct settings.
Reading out Hours run
The number of Hours run that have elapsed since initial commissioning
is displayed in the menu. The number of Hours run specifies whether:
• Components need to be replaced as a preventative measure.
• The Maintenance type needs to be modified.
▶ Open the menu Info > Boiler > Hours run.
▶ Read out the number of Hours run.
▶ Check based on the value read out whether components need to be
replaced ( § 10.16.1, p. 36).
▶ Make a note of the value in the maintenance protocol ( § 10.17, p.
38).
▶ Establish the difference between the value most recently read out
and the previous value from the maintenance protocol.
▶ Check the setting Maintenance type based on this difference and
adjust if required ( § 8.2, p. 21).
Reading out Burner starts
The number of Burner starts that have elapsed since initial
commissioning is displayed in the menu. The number of Burner starts
specifies whether:
• Components need to be replaced as a preventative measure.
▶ Open the menu Info > Boiler > Burner starts.
▶ Read out the number of Burner starts.
▶ Check based on the value read out whether components need to be
replaced ( § 10.16.1, p. 36).
▶ Make a note of the value in the maintenance protocol ( § 10.17, p.
38).
10.3
Remove the gas-air unit
▶ Remove the electrical plug from the fan.
32
▶ Remove the gas hose between the air/gas ratio control valve venturi
nozzle.
Fig. 33 Remove the gas hose
▶ Remove the air collector from the venturi nozzle [1].
Attention! The air collector is connected with the air/gas ratio
control valve via an pressure compensation hose [2].
▶ Leave the air collector in the boiler and the pressure compensation
hose connected with the gas train and the air collector.
2
Fig. 34 Removing the air collector
▶ Unscrew the nuts on the gas-air mixing pipe [1].
▶ Remove the gas-air mixing pipe with fan [2].
Condens 7000 WP – 6721842519 (2022/03)
0010040880-001
1.
2
0010041397-001
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