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Maintenance
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Cleaning :
Spray the combustion chamber and aluFer tubes (3, fig. 13).
The best results are obtained with a spray gun with a suitable wide jet noz-
zle (fan or conical jet). We recommend, e.g.: “SOTIN 230“; Spraytherm-
Konzentrat-W“ (from R. Zimmermann, 8700 Küsnacht); “durgo forte“, Art.
No. 1D1997, or “NALCO“ in Austria.
Leave the applied cleaning agent to react as instructed by the manufacturer.
Then remove the contamination on the combustion chamber and aluFer
tubes by spraying them with clean water using a powerful jet.
Repeat the procedure in case of stubborn dirt.
Flush clean the bottom tube plate.
Use an angled spray lance.
Clean and dry the boiler tray.
Clean the siphon.
screw it off
clean it
screw it back on
fill it with water
Clean the fabric material in the burner cylinder with compressed air.
Reconnect the gas and electrical connections.
Place the boiler into operation
Carry out a flue gas measuring according to point 6.7. Correct the settings, if
necessary. Complete a measurement record.
7.5.3 Cleaning/adjusting the ignition and ionisation device
The distance between the ignition electrode and the burner cylinder must be
approx. 4 mm.
Fine sanding paper, long-nosed pliers, blowtorch, compressed air
Preparation
Set the main system switch of the boiler control to “0”.
Open the combustion chamber as described under point 7.5.2
(Cleaning the exterior of the combustion chamber and burner cylinder).
Cleaning
Sand the ignition and ionisation device with fine sanding paper.
Clear the sanding dust.
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Figure 13
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