Buderus 500 - 24/S Installation And Maintenance Instructions Manual page 19

1.7.5 Standard 100 mm flue systems
The standard concentric flue system provides for a max. hori-
zontal straight length of upto 12.0 m for 60/100 flue connection
(see subsection 1.7.3).
Full instructions for fitting this flue are in subsection 1.7.8:
"Installation of the horizontal flue" on page 20.
IMPORTANT
Any horizontal flue system fitted to a
condensing boiler must be inclined towards the
appliance at an angle of 30 mm per metre
length to prevent condensate dripping from the
flue terminal.
This means that the clearance above the
appliance must be increased to match the duct
length. See figure on page 9.
NOTE
When using a wall spacing frame, don't forget
to take its measurements into account when
designing a flue system.
1.7.6 Connecting the vertical flue adaptor
Fit the vertical flue adaptor (fig. 18) onto the appliance flue
connector.
1.7.7 Connecting the horizontal flue turret
Fit the horizontal flue turret (fig. 19) onto the appliance flue
connector.
Subject to modifications resulting from technical improvements!
Installation and maintenance instructions for Buderus 500 - 24/S • 08/2006
fig. 18 Vertical flue adaptor
Flue gas
testing point
fig. 19 Horizontal flue turret with flue gas testing point
Buderus • http://www.buderus-domestic.co.uk
Installation 1
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