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11
Calculation of flue system
The possibilities for the lengths of flue pipes and the possible restrictors have been recorded
in a table (see chapter 12 ) This table works with a vertical and a horizontal length.
To define the vertical length all lengths of flue pipes in a vertical direction should
be added up.
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The roof terminal always counts as 1 metre.
To define the horizontal length all lengths of flue pipes in a horizontal direction
should be added up.
-
every 90° bend in the horizontal part counts as 2 metres.
-
every 45° bend in the horizontal part counts as 1 metre.
-
Turns from vertical to horizontal or vice versa are not reckoned in the
calculation.
-
The wall terminal always counts as 1 metre.
If there is transit under 45° then the real vertical and horizontal lengths should be
calculated.
11.1
Points of particular interest:
In case of a wall terminal, the entire flue system including the wall terminal should
be constructed of 200/130 flue pipes.
In case of a roof terminal, the entire flue system should be constructed of 200/130
flue pipes , apart from the roof terminal, which should be constructed of 150/100
and should be connected by means of a reducer.
The maximum chimney length is 12 metres.
You can never start with a 90° or 45° bend from the appliance.
You should always start with 1 metre vertical if the horizontal transit is more than 1
metre.
You should never start with a cut-down pipe from the appliance.
Summary of Contents for Aspect L RD
Page 1: ...Aspect L RD Installation guide ENG ENG 30cm 4001941 1021 ...
Page 2: ...L 1 1 1 1 2 1 3 1 4 A D B C 1 ...
Page 3: ...L 2 1 5 1 6 1 7 1 8 E E A ...
Page 4: ...L 3 2 1 2 2 2 3 2 4 ...
Page 5: ...L 4 2 5 2 6 2 7 2 8 2 9 3 0 1 2 ...
Page 6: ...L 5 3 1 3 2 3 3 ...
Page 22: ...L 14 Dimensions of the appliance 21 ...
Page 23: ...L 22 15 Dimensions ventilation grills ...
Page 24: ...23 L 16 Dimensions service Hatch ...
Page 25: ......