Design Of Flue And Air Pipe For Direct Vent Operation - Buderus Logano plus GB312 Installation And Service Instructions Manual

6
Installing the boiler
6.8

Design of flue and air pipe for direct vent operation

4
max. 6 ft
Fig. 18 Air supply on the outside wall, flue outlet on the roof
[1] Flue outlet (type of outlet depends on chosen manufacturer, e. g.
90° elbow or T-piece)
[2] Air inlet (T-piece fitted horizontally or
90° elbow)
[3] External wall
[4] Roof
[5] T-piece with siphon to drain condensate
max. 6 ft
Fig. 19 Air supply and flue outlet on the outside wall
[1;2] Flue outlet (external-wall flue requires horizontally or vertically
mounted T-piece), observe clearances specified in Fig. 12
[3] Air intake terminal (90 ° elbow facing vertically downwards)
[4] External wall
[5] T-piece with siphon to drain condensate
22
1
1
1
2
2
3
5
6 720 806 275-02.1T
1
2
3
4
5
6 720 806 275-04.1T
1
2
max. 6 ft
Fig. 20 Air supply and flue outlet on the roof
[1] Flue outlet (type of outlet depends on chosen manufacturer, e. g.
90° elbow or T-piece), observe clearances specified in Fig. 17
[2] Air inlet terminal (90 ° elbow pointing away from flue outlet)
[3] Roof
[4] T-piece with siphon to drain condensate
2
max. 6 ft
Fig. 21 Air supply on the roof, flue outlet on the outside wall
[1] Flue outlet (external-wall flue requires horizontally mounted T-
piece or 90° elbow facing downwards)
[2] Air inlet (90 ° elbow or T-piece)
[3] External wall
[4] Roof
[5] T-piece with siphon to drain condensate
Logano plus GB312 – 6 720 806 273 (2013/01)
1
1
3
4
6 720 806 275-03
2
4
1
1
3
5
6 720 806 275-05.1T