Buderus Logano plus GB312 Installation And Service Instructions Manual page 44

9
Heating system inspection
▶ Carefully draw the burner forwards to remove it.
3
1
1
Fig. 58 Removing the burner from the heat exchanger
[1] Front hex bolt
[2] Rear hex bolt
[3] Fixing nuts
▶ Unscrew fixing nuts from the cleaning covers at the top and bottom of
the heat exchanger.
▶ Remove the cleaning covers.
▶ Unscrew the fixing nuts from the top and bottom of the condensate
pan cover.
▶ Remove the cover.
2
1
2
4
3
4
Fig. 59 Opening the cleaning covers
[1] Cleaning cover on heat exchanger
[2] Fixing nuts on cleaning cover
[3] Condensate pan cover
[4] Fixing nuts on the condensate pan cover
44
3
2
7 747 010 720-27.1RS
7 747 010 720-28.2RS
Dry cleaning the heat exchanger
CAUTION: Risk of injury from sharp edges on the
cleaning blades!
▶ To avoid injury, wear gloves when cleaning the boiler
with cleaning blades (accessory).
▶ Use the long cleaning blade to clean the hot gas flues of the heat
exchanger horizontally and diagonally.
▶ Use the short cleaning blade to clean the back section of the hot gas
flues from below through the condensate pan.
1
2
Fig. 60 Dry cleaning the heat exchanger
[1] Long cleaning blade (accessory)
[2] Short cleaning blade (accessory)
Wet cleaning the heat exchanger
For wet cleaning use a cleaning agent appropriate for the degree of
soiling (soot or scale). The cleaning agent must be approved for use with
aluminum.
WARNING: Risk of fatal injury from escaping flue gases!
▶ When refitting the cleaning covers, check that the
seals are not damaged and the cover is seated
correctly.
▶ Screw the cleaning covers back in place.
▶ Clean the heat exchanger with water or a cleaning agent approved for
aluminum (see instructions provided by the manufacturer of the
cleaning agent).
Protect electrical components from moisture.
Logano plus GB312 – 6 720 806 273 (2013/01)
7 747 010 720-29.2RS