Hydraulic installation
Installation and maintenance instructions ecoTEC plus 0020134833_01
25
6
6.6
Connecting the condensate discharge
pipework
a
Danger!
Risk of death from flue gases!
An empty or insufficiently filled condensate
siphon may allow flue gas to escape into
the room air.
>
Make sure that the condensate siphon is
filled with water when switching on the
boiler.
The ecoTEC plus boilers are equipped with a condensate
siphon. (The filling height is 145 mm). The siphon collects
the condensate that has formed in a vessel with a capacity
of approx. 200 ml, and intermittently deposits the contents
to the discharge pipe. This minimises the risk of the dis-
charge pipe freezing up.
1
2
3
7
d
Soakaway
c
6
5
Gulley
a
Internal
stackpipe
3
4
3
b
Internal
discharge system
6.4 Condensate discharge pipework
>
Connect the condensate discharge (
1
) of the boiler to a
condensate discharge pipework (
3
) which has a minimum
internal diameter of 19 mm (22 mm outside diameter for
all external pipes) and is made from an acid-resistant
material (e.g. plastic overflow pipe).
i
The condensate discharge pipework must have a
continuous fall (45 mm per metre) and should
whenever possible terminate at a suitable dis-
charge point
within the heated envelope of the
building that will remain frost free under long
periods of low external temperatures.
>
During installation remove all burs from inside of cut
pipe work and avoid excessive adhesive which may trap
small pockets of water close to the pipe wall which can
freeze and build into a larger ice plug.
>
As with other pipe work insulate the condensate dis-
charge pipe to minimise any risk of freezing and beware
when crossing cavities that the fall is maintained and the
pipe sleeved.
>
The condensate discharge pipework must terminate in a
suitable location.
Further information can be obtained from "BS 6798 Specifi-
cation for installation of gas–fired boilers of rated input not
exceeding 70 kW net". Before starting up the boiler, the
condensate siphon (
2
) must be filled with water, as
described in the relevant section.
Содержание ecoTEC plus VUI
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