Maintenance; Clean The Heat Exchanger, Burner And Condensate Trap - Buderus 600 - 11S Installation And Servicing Instructions

Maintenance

4 Maintenance
For further information, please refer to subsection 8.2
"Inspection and maintenance reports" on page 66 and fill out
the Benchmark.
4.1 Clean the heat exchanger, burner and
condensate trap
NOTE
The cleaning of the burner and heat exchanger
described here should be carried out whenever
there are signs of heavy soiling on the wall-
mounted condensing gas boiler. It is sufficient,
during annual servicing, to clean the burner
and heat exchanger with the help of an
appropriate cleaning product and a soft brush
and compressed-air hose (see following
section).
The heat exchanger can be dismantled
completely for thorough cleaning if required
(see "Cleaning the heat exchanger after
dismantling" on page 33)
4.1.1 Cleaning the heat exchanger without dismantling
Disconnect the system from the power supply.
Close the gas shutoff valve.
Loosen the fixing screw, remove casing and combustion-
chamber cover.
Release plug-in connection of fan power lead (fig. 40,
item 1), burner-control unit fan control lead (fig. 40, item 2)
and gas-burner assembly (fig. 40, item 3).
Loosen union nut on gas valve assembly (fig. 40, item 4).
Push safety plate out of way.
Turn air suction tube and pull off from below.
Swivel forward the air combination unit (fig. 41, item 1).
Pull the air combination unit up and out of bayonet
connector (fig. 41, item 2) and remove via front of unit.
Remove burner gasket (fig. 42, item 1).
Remove rubber seal in combustion chamber by pushing
upwards from inside (fig. 42, item 2).
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for wall-mounted condensing gas boiler 600 - 11S/19S/24S/24C • 05/2004
Fig. 40 Loosen the union nut and remove the cable
2
Fig. 41 Remove the air combination unit
Fig. 42 Remove burner gasket and rubber seal
Boulter Buderus Ltd. • http://www.boulter-buderus.co.uk
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