In calculating the lengths of the pipes, the maximum length must also take into consideration the values for the exhaust/air intake end terminals, as well as 90° elbows for coaxial systems.
The C52 types must comply with the following requirements:
1.The discharge/intake vent pipes must have the same diameter of ø 80 mm.
2.The maximum combined flue length is 17 m for Models Genus 23/27 MFFI/RFFI and 15 m for Model Genus 30 MFFI. In this case the minimum length for the air intake pipe is 1 meter; the maximum length of ver tical exhaust pipe must be a maximum of 12 m.
3.If an elbow is inserted into the discharge/ventilation system, the calculation of the overall extension must take into consideration the values for each curve, as indicated in the table.
4.The exhaust pipe must extend at least 0.5 m above the ridge of the roof if it is located on a side other than that for the air intake (this is not obligatory if the exhaust and air intake pipes are located on the same side of the building).
(*) L = Length of Piping
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C52 (xy) | C42 (xy) | C32 (xy) | C12 (xy) |
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17 m | 54 m | 54 m | 54 m | 23 kW | 4 m | 4 m | 4 m | 23 kW - 27 kW |
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17 m | 46 m | 46 m | 46 m | 27 kW | ||||||||
15 m | 50 m | 50 m | 50 m | 30 kW | 3 m | 3 m | 3 m | 30kW | ||||
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ø 80 | ø 80 | ø 80 | ø 80 |
| ø 60/100 | ø 60/100 | ø 60/100 | (mm) | Pipes | Diameter | ||
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L < 7 m | L < 7 m | L < 7 m | L < 7 m |
| L * < 0.5 m | L * < 0.5 m | L * < 0.5 m | 23kW | 42 mm | Use of Restrictor | ||
L < | L < | L < | L < |
| L * < | L * < | L * < | 27 | ||||
5 m | 5 m | 5 m | 5 m |
| 0.5 m | 0.5 m | 0.5 m | kW |
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L < 7.5 m | L < 7.5 m | L < 7.5 m | L < 7.5 m |
| L * < 0.5 m | L * < 0.5 m | L * < 0.5 m | 30 kW | 45 mm | |||
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L > 4.9 m | L > 4.9 m | L > 4.9 m | L > 4.9 m |
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| 23kW |
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| Risk of Condensation | |
L < 5.3 m | L > 6.5 m | L > 6.5 m | L > 6.5 m |
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| 27 kW |
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L > 4.5 m | L > 4.5 m | L > 4.5 m | L > 4.5 m |
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| 30 kW |
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14 | B004 |
