Vaillant ecoFIT sustain Series Installation And Maintenance Instructions Manual page 19

Preferred option for external termination
7.6.1.5 External termination into soakaway
Ø32mm
≤ 3 m
< 500 mm
1 Ground (either/or)
2 Seal
3 Plastic tube,
100 mm diameter
Least preferred option, must not terminate in rain water drain
7.6.1.6 Internal termination downstream of sink
waste
≤ 3 m
Open end of pipe direct into gulley below ground level but
above water level
Susceptible to siphonage, must terminate in a gulley
0020230529_06 ecoFIT sustain Installation and maintenance instructions
1
100 mm
2
3
4
5
6
4 Bottom of sealed tube
5 Limestone chippings
6 Hole depth 400 mm
minimum
Ø22mm
100mm
Ø32mm
7.6.1.7 External termination into rain water down
pipe
Ø22mm
Ø 32mm
Ø12
NB only combined foul/rainwater drain
7.6.1.8 Additional methods of introducing air breaks
25
1 Air break
2 Using a tundish
7.6.1.9 Connection of condensate pump
Ø22mm
Preferred option for external connection
1
2 3
3 Using a pipe
Ø32mm
≤ 3 m
≥ 3 m
19