Buderus 600 - 11S Installation And Servicing Instructions page 32

4 Maintenance
Remove burner by pulling upwards through the opening
(fig. 43).
NOTE
Maintain the specified clearance of approx.
25 cm between the ceiling and the combustion
chamber cover.
Remove the front casing shell of the combustion chamber.
This is done by releasing the four snap catches at the
sides.
Remove the hot surface ignitor (fig. 44, item 1) and
ionisation electrode (fig. 44, item 2).
In the case of the hot surface ignitor: loosen the fixing
screw of the hot surface ignitor, detach both earth (ground)
leads and remove the retaining plate of the hot surface
ignitor by pulling it upwards, withdraw the hot surface
ignitor by pulling it upwards.
In the case of the ionisation electrode: Swivel the
retaining plate to one side and carefully remove the
ionisation electrode by pulling it upwards.
Clean the burner and both parts of the combustion
chamber with a compressed-air line or brush.
Refit the heat exchanger by following the above procedure
in reverse order.
CAUTION
The gasket between the two halves of the
casing shell should normally be replaced.
Fit the new gasket by pressing in from the top
on both sides, and without stretching.
DO NOT attempt to cut the gasket to size.
CAUTION
The burner gasket must match the shape of
the groove in the housing.
CAUTION
Check the heat-exchanger for leaks BEFORE
reassembling the casing shells.
Subject to modifications resulting from technical improvements!
32 Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 05/2004
Fig. 43 Remove burner
Fig. 44 Remove the hot surface ignitor and ionisation
electrode
Boulter Buderus Ltd. • http://www.boulter-buderus.co.uk
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