Installation 1
Wall-mounted condensing gas boiler Buderus 800 - Subject to modifications resulting from technical improvements!
15
When longer aluminium flue-gas systems are used
There is no integrated condensate water outlet in the
flue gas adapter of the aluminium exhaust flue.
The condensate water from the exhaust flue flows via
the external condensate water outlet with odour trap
(syphon, see fig. 11).
This additional component is required:
– from 10 m expanded overall length of exhaust flue
with 800 Series to boiler size of 24 kW or
– from 5 m expanded overall length of exhaust flue with
type
800 – 29, 800 – 43 and 800 – 60.
1.8 Flue installation
The only flue systems that may be used are those
supplied by Buderus. The flue system must be installed
in accordance with the requirements of BS5440:1. 2000.
Standard 125 mm flue systems
See subsection 1.3.3 for the maximum horizontal
straight length of each type boiler. Full instructions for
fitting this flue are in Section 1.8.2: "Installation of the
horizontal flue“ on page 16.
fig. 11 Condensate water outlet for longer exhaust flue
systems made of aluminium
CAUTION!
If the flue gas adapter is made of aluminium,
the sealing cap (fig. 12, item 1) MUST NOT
be removed.
fig. 12 Remove sealing cap on condensate water bypass
(applies only to boiler connection pieces made of
plastic)
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