Wet Cleaning (Chemical Cleaning); Cleaning The Burner - Buderus Logano US GC 144 II Installation And Service Instructions Manual

15.5.2 Wet cleaning (chemical cleaning)

For wet cleaning use a suitable cleaning agent depending on the degree
of build-up of dirt (soot or scale).
Use the same procedure as described for cleaning with brushes
( chapter 15.5.1, page 22).
Observe the directions for use of the cleaning agent. In
some case you may need use a different procedure from
that described here.
▶ Cover control with foil to prevent entry of spray into the control.
▶ Ventilate boiler room well during cleaning.
▶ Spray flue gas vents evenly with the cleaning agent.
▶ Replace and install the burner in reverse order of removal and
disassembly.
▶ Place the heating system in operation.
▶ Heat the boiler water to a temperature of at least 122°F.
▶ Take the boiler out of operation.
▶ Allow boiler to cool.
▶ Remove burner.
▶ Brush out flue gas passages.
▶ Clean combustion chamber and bottom insulation.
▶ Continue to ventilate boiler room well.
▶ Install burner.
▶ Reattach boiler jacket.
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3
Fig. 37 Clean out the gas passages
[1] Cleaning brush
[2] Insulation
[3] Foil
Logano GC 144 II – 6 720 808 893 (2017/02)
Fig. 38 Wet cleaning boiler
15.6
▶ Remove burner ( chapter 15.5.1, page 22).
▶ Check burner rods for dirt. If necessary, clean burner as described
below.
▶ Unscrew ignition burner unit from burner.
▶ Disconnect ignition gas line from ignition burner unit.
▶ Remove ignition gas jet and blow out.
▶ Immerse burner rods in water with cleaning agent and brush off.
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6 720 804 440-48.1T
Fig. 39 Ignition burner
[1] Ignition cable
[2] Ignition electrode
[3] Ignition gas line
[4] Ignition gas line screw
Boiler inspection and maintenance

Cleaning the burner

Be careful not to damage the pilot orifice during
installation and cleaning.Ensure that the insulation on
the burner shield, the gas valve, and the controls do not
get wet.
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1
15
6 720 804 440-49.1T
4
3
6 720 804 440-50.1T
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