Inspecting The Burner Electrodes - Buderus Logano plus GB402 Installation And Maintenance Instructions Manual

Wet cleaning the heat exchanger
When wet cleaning, use a cleaning agent appropriate to
the level of contamination (soot or encrusted residues).
The cleaning agent must be suitable for aluminium.
B Clean the heat exchanger with water or a cleaning
agent approved for aluminium (see instructions
provided by the manufacturer of the cleaning agent).
During wet cleaning, protect electrical
components (fan, gas valve etc.) against
moisture and contamination.
Fig. 54 Wet cleaning the heat exchanger
Working on the heat exchanger during wet and dry
cleaning
B Use a hose to flush any residues into the bucket or the
condensate tray.
B Clean the condensate tray with water.
B Clean the siphon with water.
WARNING: Risk to life through poisoning!
Siphons not filled with water can cause a risk
to life through escaping flue gas.
B Fill the siphon with approx. 2 litres of water.
B Re-install the siphon (
B Check the condensate hose between the boiler flue
connection and the siphon for free flow.
Logano plus GB402 - Subject to technical modifications!
Chapter 6.2).
Inspection and maintenance
9.7

Inspecting the burner electrodes

Checking the electrode position
B Move the burner into its service position
( Chapter 9.6).
B Check the gaps between the electrodes and compare
them with those shown in Fig. 55.
Fig. 55 Setting the electrode position
1 Gasket (O-ring), mixture manifold
2 Fixing screws, burner rod
3 Ignition electrode
4 Burner rod
5 Ionisation electrode
B Replace the electrode block together with a new
gasket if actual values deviate from the specified
parameters.
B If deposits have formed on the electrodes, replace the
electrode block together with a new gasket, or sand
down the electrodes.
We recommend the replacement of the
electrode block as part of the annual service.
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