5 Installation
12
Installation and maintenance instructions ecoTEC plus 0020239015_05
5.8
Connecting the condensate discharge pipe
1
2
▶
Follow the instructions listed here and observe the legal
and local regulations on condensate discharge.
▶
Use PVC or any other material that is suitable for drain-
ing the non-neutralised condensate.
▶
If you cannot guarantee that the materials from which the
drain pipework is made are suitable, install a system for
neutralising the condensate.
▶
Ensure that the connection between the condensate dis-
charge pipe and the drain hose is not air-tight.
Note
The condensate drain pipework must have a
continuous fall (45 mm per metre) and should
whenever possible terminate at a suitable
drain point within the heated envelope of the
building that will remain frost free under long
periods of low external temperatures.
▶
During installation remove all burrs 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.
▶
For any installation the condensate must be free flowing
and not be possible for air back-pressure to prevent wa-
ter flow.
▶
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.
You can find further information in specification "BS 6798"
for installing and maintaining gas-fired boilers with a nominal
heat input below 70 kW.
5.8.1
Condensate drainage systems
5.8.1.1 Internal soil and vent pipe
Ø19mm
min
5.8.1.2 External soil and vent pipe
L = 3m max
Ø19mm
min
Ø30mm
5.8.1.3 External termination into a gulley or hopper
L = 3m max
Ø19mm
min
Ø30mm
