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INSTALLEREN
Installatie-instructie Nefit Economy HRC-toestellen
1.2.4 Rookgasafvoer- en luchttoevoerberekeningen
De maximale leidinglengte van de luchttoevoer- en rookgasafvoerleidingen
wordt bij de Nefit Economy HRC-toestellen bepaald door de totale
weerstand van alle componenten in het rookgasafvoer/luchttoevoersysteem
(zie onderstaande tabel), waarbij de maximale toegestane drukval niet over-
schreden mag worden.
Conform toestelclassificatie C63 mag ook goedgekeurd universeel afvoerma-
teriaal op het cv-toestel worden aangesloten. Hiervoor is bijvoorbeeld ook
flexibel RVS afvoerleiding beschikbaar. Voor weerstanden en andere informa-
tie kunt u contact op nemen met Nefit.
294003
Diameter Nefit Economy
HRC 24
[mm] [Pa]
Maximaal toegestane drukval 70 1)
Rookgasafvoertracé
45° bocht 60 3,9
80 1,6
100 0,5
90° bocht 60 6,4
80 5,2
100 1,7
1 meter buis 60 3,3 verticaal
3,8 horizontaal
80 1,0
100 0,4
Verloop 80 60 0,7
60 80 Nihil
Luchttoevoertracé
45° bocht 60 2,8
80 0,9
100 0,3
90° bocht 60 4,6
80 2,9
100 1,2
1 meter buis 60 2,7
80 0,7
100 0,3
Verloop 80 60 0,6
60 80 Nihil
Concentrische buis
45° bocht 60/100 3,5
80/125 1,8
100/150 1,4
90° bocht 60/100 7,5
80/125 2,9
100/150 2,2
1 meter buis 60/100 5,3
80/125 2,0
100/150 0,8
Verloop 80/125 60/100 Nihil
Doorvoer
Nefit dakdoorvoer (concentrisch) 80/125 14,4
Nefit muurdoorvoer (concentrisch) 80/125 8,5
Dakdoorvoer rookgas 80 1,3
Muurdoorvoer lucht 80 0,5
294003
294168
1) Bij een drukval tot 70 Pa is geen sprake van extra vermogen reductie. De maximale
drukval waarvoor het toestel kan worden ingezet bedraagt 125 Pa. Dit heeft een extra
vermogensreductie tot gevolg van 0,11A% per Pa.
10


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