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Maintenance
Check and possibly clean the flue gas collector and
the condensate drain through the clean-out cover
(Fig. 27, Item. 3).
Remove the upper (Fig. 28, Item. 4) and lower cover
part (Fig. 28, Item. 1).
Remove the upper front wall (left and right) (Fig. 28,
Item. 3 und 5).
Remove the lower front wall (Fig. 28, Item. 2).
Remove the left and right side wall sections (Fig. 28,
Item. 6).
A DANGER!
through falling parts.
Ensure that the hinge bolts (Fig. 29, Item. 1 and
2) are in the boiler door and in the reversing
door, before opening the doors.
Loosen the bolts on the reversing door (Fig. 29, Item.
1) and pivot the reversing door aside.
Remove the hexagon bolts from the boiler door
(Fig. 29, Item. 2) and open the door.
Clean the combustion chamber and the heating
surfaces.
J NOTICE!
Brush out the secondary and third firetubes (Fig. 30).
When cleaning the secondary and third
firetubes, the entire brush head should protrude
from the firetube before the cleaning brush is
withdrawn again.
Remove any cleaning residues with a vacuum
cleaner. Observe the opening instructions of the
cleaning equipment when cleaning by pressure
spray!
A SYSTEM DAMAGE!
Check the gaskets on the boiler door and the
reversing door and replace, if necessary.
Spray must not enter into the control panel!
Close and bolt down the boiler door.
Close and bolt down the reversing door.
Fit the insulation blanket.
Install the side wall sections.
Install the upper and lower front wall.
Re-start the system.
We reserve the right to make any changes due to technical modifications!
26
4
3
2
1
Fig. 28 Remove the front wall
2
1
Fig. 29 Open the boiler door
Fig. 30 Cleaning the secondary and third firetubes
Buderus Heiztechnik GmbH • http://www.heiztechnik.buderus.de
Boiler Installation and Maintenance Manual SB735 • Issue 10/2003
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