19
Maxima 35 C
Vertical Outlet
fig. 9c
The total length in equivalent metres of the
concentric flue must not exceed the maximum
lengths stated in the following table, note that
each bend gives rise to the stated reduction.
For example, a duct = 60/100 composed of 1
bend of 90° +1 horizontal metre + 2 bends of
45° + 1 horizontal metre has a total equivalent
length of 4 metres.
Angled roof tile
1KWMA82U
1KWMA56U
240
240
950
50
1KWMA71W
max. 6 metr
es 60/100
max. 12 metr
es 80/125
Roof end piece
1KWMA83U
68
950
50
50
950
50
1000
125
10
Reduction factors for bends
Concentric bend at 90
°
- Ø 60/100 mm
Concentric bend at 45
°
- Ø 60/100 mm
Concentric bend at 90
°
- Ø 80/125 mm
Concentric bend at 45
°
- Ø 80/125 mm
1 m
0.5 m
0.5 m
0.25 m
Table 2b
Maximum permissible
duct length (Horizontal)
Ø mm
60/100
5 m
12 m
Ø mm
80/125
Table 2a
Maximum permissible
duct length (vertical)
6 m
12 m
4. If necessary, cut the end pipe to size, ensuring that the external pipe protrudes from the wall by
between 10 and 60 mm (Fig. 9a and 9b). Remove the cutting burrs.
5. Connect the flue to the boiler, positioning the seals correctly. Seal the flue into the wall with silicone
or sand + cement and cover with wall seals provided.
Flue seals should be lubricated with a silicone type grease to prevent damage (grease
not supplied)
