AKOS Gemini M Installation Manual - Page 15

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7 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.
o
− To define the horizontal length all lengths of flue pipes in a horizontal direction should be added
up.
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o
o
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− If there is transit under 45° then the real vertical and horizontal lengths should be calculated.

Points of particular interest:

− The maximum chimney length is 12 meters.
− You can never start with a 90° or 45° bend from the appliance.
− You should always start with 1 meter vertical if the horizontal transit is more than 1 meter.
− You should never start with a cut-down pipe from the appliance.

Sample computations

Sample calculation 1
Count the horizontal lengths
Flue pipe lengths: C + E = 1 + 1 = 2m
Bend D = 1x2m = 2m
Total: 4m
Count the vertical lengths
Flue pipe length A: 1m
Roof terminal G: 1m
Total: 2m
AKOS Sp. z o o.
ul. Bruszewska 22, 03-046 Warszawa
NIP: 5361925006; REGON 365653140
Tel: +48881697975; email: [email protected]
The roof terminal always counts as 1 meter.
Every 90° bend in the horizontal part counts as 2 meters.
Every 45° bend in the horizontal part counts as 1 meter.
Turns from vertical to horizontal or vice versa are not reckoned in the calculation.
The wall terminal always counts as 1 meter.
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