Maintenance; Cleaning The Heat Exchanger, Burner And Syphon - Buderus 800-24 Installation And Servicing Instructions

4

Maintenance

For further information, please refer to subsection 7.2 "Inspec-
tion and service reports" on page 64 and fill out the
Benchmark.
Preparations
Disconnect the system from the power supply.
Close the gas service valve.
Remove the boiler casing (fig. 5 on page 11).
4.1 Cleaning the heat exchanger, burner and
syphon
The heat exchanger can be cleaned with a brush and
compressed air.
Loosen the screw couplings of the gas injector
(fig. 44, item 1).
Pull off the hose leading to the fan (fig. 44, item 2).
Pull off the hoses at the differential pressure measuring
point (fig. 44, item 3).
Pull off the wiring of the burner thermostat (fig. 44, item 4).
Pull off the plug of the fan (fig. 45, item 1).
Turn and pull out the safety retainer of the fan
(fig. 45, item 2).
Subject to modifications resulting from technical improvements !
Installation and servicing instructions condensing gas boiler 800 - 24/29/43/60 and 800 - 24T25/29T25 H/V • edition 02/2006
Maintenance
4
fig. 44 Disconnecting
fig. 45 Removing the fan
4
3
1
2
2
11
KW
0 1
1 2
10
10
1
10 1
1
1
Buderus • http://buderus-domestic.co.uk
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