Wet Cleaning (Chemical Cleaning) - Buderus Logano G225 Installation And Service Instructions Manual

V Clean the combustion chamber with a flat brush.
Remove the loose combustion residue from the
combustion chamber, the hot gas flues and the flue
outlet.
V Install the hot gas baffle plates in their original position
V Check packing cord on burner door. Replace damaged
or hardened packing cord.
You can obtain suitable packing cord from
your local Buderus sales office.
V Close the burner door and secure with the two
hexagon bolts (tighten to approx. 10 Nm). Tighten
hexagon-head bolts evenly.
V Seal the pressure testing nozzle for the combustion
chamber pressure.
Recommissioning after cleaning with brushes
When recommissioning the boiler after cleaning with
brushes, proceed as follows:
V Attach the power plug to the SAFe.
V Prepare the heating system for operation.
9.3.2

Wet cleaning (chemical cleaning)

When wet cleaning, use a cleaning agent appropriate for
the degree of contamination (soot or scale). Follow the
same sequence as described in Chapter 9.2, page 51
and Chapter 9.3, page 52.
Observe the instructions for use of the
cleaning agent. In come circumstances, you
may need to proceed differently from the
method described here.
V Cover the control unit with foil to prevent spray getting
into it.
V Spray cleaning agent evenly into the hot gas flues.
V Close the burner door, plug the burner plug and mains
power plug into the SAFe and start up the heating
system.
V Heat up the boiler to a water temperature of at least
70 °C.
V Shut down the heating system.
V Brush out the hot gas flues.
V Start up the heating system again (see above).
Logano G225/Logano plus GB225 - We reserve the right to make any changes due to technical modifications.
Heating system servicing
Fig. 75 Brushing out the combustion chamber
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