Vaillant Air/flue gas system Installation Manual page 13

5.1.2 Flue gas pipe in the shaft, combustion air from the installation room
L 1
Shaft cross-sec-
System tion:
At least
130 mm
diameter
Round: DN + 60 mm
160 mm
Angular: DN + 40
diameter
mm
200 mm
diameter
5.1.3 Flue gas pipe in the shaft, combustion air through the external wall
L 2
L 1
0020058722_04 Air/flue gas system Installation manual
L 2
806 1206
33.0 m
plus 3 x 87° diversions and support elbow
50.0 m
plus 3 x 87° diversions and support elbow
The horizontal flue gas pipe must have a maximum length of 6 m, minus the three 87° diversions.
L 4
ecoCRAFT VKK../3-E-HL
1606
Maximum total pipe length (L1 + L2 + L3)
‒
plus 3 x 87° diversions and support elbows
System conditions 5
2006 2406
‒
‒
50.0 m
2806
13