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18 Installatie-instructie Nefit Economy VR 24 en VRC 24/CW4 • uitgave 07/2005
Nefit B.V. • www.nefitdealer.nl Wijzigingen op grond van technische verbeteringen voorbehouden!
Installeren4
4.4 Aansluiten verbrandingsluchttoevoer
en verbrandingsgasafvoer
Voor aanvang van de montage moet de bevoegde
schoorsteenvegerinstantie worden geïnformeerd.
Bij de types B
22
, C
12
, C
32
, C
42
, C
52
, en C
62
zijn de rook-
gassysteem basismontagepakketten, volgens de richt-
lijn voor gasapparatuur 90/396/EWG met inachtneming
van EN 483 gezamenlijk met de Nefit Economy VR 24
en VRC 24/CW4 toegelaten (systeemcertificering). Dit
is gedocumenteerd door het product-identificatie-
nummer op het typeplaatje van het toestel.
z Verbrandingslucht-/rookgasafvoeraansluiting monte-
ren overeenkomstig het montagevoorschrift van het
rookgasafvoersysteem.
Bij een parallele rookgasafvoeraansluiting (afb. 12)
geldt:
P
w
< 60 Pa bij Nefit Economy VR 24,
Reduceerring Ø 40 mm
P
w
< 45 Pa bij Nefit Economy VRC 24/CW4,
Reduceerring Ø 47 mm
Bij grotere p
w
-waardes of andere rookgasafvoersys-
temen is geen reduceerring nodig.
Bij een concentrisch rookgasafvoersysteem
(optioneel) (afb. 13) geldt:
P
w
< 60 Pa bij Nefit Economy VR 24:
Reduceerring Ø 43,5 mm
P
w
< 45 Pa bij Nefit Economy VRC 24/CW4:
(komt overeen met een rookgasafvoersysteemlengte
van ca. 4000 mm)
Reduceerring Ø 43,5 mm
Afb. 12 Aanbrengen reduceerring in rookgasafvoer
LET OP!
Afhankelijk van de weerstandswaarde
van het toegepaste rookgasafvoersys-
teem (p
w
-waarde) moet er een reduceer-
ring in de rookgasafvoerstomp gelegd
worden.
Afb. 13 Reduceerring in concentrische rookgasafvoerstomp
leggen
18


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