Maintenance
4
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 28C • 01/2004
33
Subject to modifications resulting from technical improvements!
Boulter Buderus Ltd. • http://www.boulter-boilers.com
4
Maintenance
See subsection 7.2 "Maintenance reports".
4.1
Cleaning the heat exchanger and burner
z
Switch the boiler off by setting the mains switch to "
0
"
(fig. 41, item 1).
z
Close the gas shutoff valve (fig. 42, item 1).
z
Remove the security screw and casing (fig. 49, item 1).
z
Remove the ventilation cover (see fig. 49).
z
Loosen the gas connection between the gas supply and
the gas air unit (see fig. 50, item 1).
NOTE
The described cleaning of the burner and heat
exchanger is only necessary when the boiler is
heavily soiled. Otherwise it is sufficient to clean
the burner and heat exchanger with a soft
brush or compressed air without
disassembling them.
fig. 49 Remove the ventilation cover
1
1
1
1
fig. 50 Loosen gas connection
1
