9
Heating system servicing
Logano G225/Logano plus GB225 - We reserve the right to make any changes due to technical modifications.
53
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.
V
Close the burner door and secure with the two
hexagon bolts (tighten to approx. 10 Nm). Tighten
hexagon-head bolts evenly.
Fig. 75 Brushing out the combustion chamber
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.
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).
You can obtain suitable packing cord from
your local Buderus sales office.
6 720 615 876-74.1RS
Observe the instructions for use of the
cleaning agent. In come circumstances, you
may need to proceed differently from the
method described here.
