Eco-King HWB-299, Инструкция по установке и обслуживанию

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E93.1801EN171 HWB installation manual 111
Burner
Check the burner surface to see if it has damages, signs of rust and/or cracks. When the burner surface is dam-
aged the burner must be replaced. The burner can be cleaned by using a soft (non-metallic) brush. The dust can
be removed with a vacuum cleaner or pressurized air.
Ignition / ionization electrode
When the complete burner is removed, it is very easy to check the ignition electrode. First check if the distances
between the electrodes and between the electrode and the burner are according to the figure below. When these
are not correct, try to bend the electrodes into the right position. Notice: the electrodes undergo high temperatures,
therefore the electrodes become hard and are difficult to bend. While bending used electrodes they might break
or burst. Check the electrode, after bending, for any tear/crack and signs of rust. When they are damaged in any
manner or rusty, replace the electrode. Also replace the electrode when there is a crack in the ceramic insulation
of the electrode. When the electrode is replaced, also the gasket must be replaced. The electrode should be
cleaned annually by lightly rubbing its surface with a dollar bill. Emory cloth, sandpaper, and any other abrasive
material should never be used to clean the electrode.
Needed tools: Phillips #2 screwdriver.
D = 8 - 10 mm
D = 0.315 - 0.393 inch
D
3.5 mm / 0.14 inch
Always check gaskets on non-return valve for air/gas leakage!!
Point of view in next picture
→
4
2
1
3
1 = Seat check valve small
2 = Lock nut M5 DIN985
3 = Gasket gas air mixing
4 = check valve small
WARNING