Installation manual

5 System conditions
16 Installation manual Air/flue gas system 0020058722_04
5.1.5 Flue gas pipe through the roof, combustion
air from the installation room
min. 1m
L
2
L
1
L
3
ecoCRAFT VKK../3-E-HL
806
1206 1606 2006 2406 2806
System
Maximum total pipe length (L1 + L2 + L3)
130 mm
diameter
‒
160 mm
diameter
25.0 m
plus 3 diversions 87°
‒
200 mm
diameter
‒ 25.0 m
plus 3 diversions 87°
The horizontal flue gas pipe must have a max-
imum length of 6 m, minus the three 87° diver-
sions.
5.1.6 Flue gas pipe through the roof, combustion
air through the external wall
min.
1m
L
2
L
1
L
3
L
4
ecoCRAFT VKK../3-E-HL
806
1206 1606 2006 2406 2806
System
Maximum total pipe length
(L1 + L2 + L3+ L4)
130 mm
diameter
‒
160 mm
diameter
25.0 m
plus 2 diversions 87°
‒
200 mm
diameter
‒ 25.0 m
plus 2 diversions 87°
The horizontal lines must have a maximum length
of 12 m, minus the two 87° diversions, of which
6 m is for the air pipe and max. 6 m is for the flue
gas pipe.