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Inbedrijfstelling 5
Installatie-instructie Nefit Economy VR(C) 24S • uitgave 03/2006 25
Wijzigingen op grond van technische verbeteringen voorbehouden! Nefit B.V. • http://www.nefitdealer.nl
Controleren van de maximale branderdruk
z Zet de regelaar voor warmwatertemperatuur (afb. 32,
pos. 5) op "10".
z Vergelijk de branderdruk met de waarde bij volle belasting
in tabel 8.
Bij afwijking, trek de beschermkap (afb. 33, pos. 1) van de
modulatiespoel en stel met de zeskantbout SW7 (afb. 33,
pos. 3) de druk in.
z Zet de regelaar voor de warmwatertemperatuur (afb. 32,
pos. 5) in de vorige stand.
z Zet de schoorsteenvegerschakelaar (afb. 32, pos. 3) in
positie "0".
z Trek de meetslang van de meetnippel los.
z Draai de sluitschroef weer vast en sluit het klepje van het
2
e
bedieningsniveau.
5.2.8 Controle op gasdichtheid van het cv-toestel
tijdens bedrijf
Controleer bij werkende brander met een schuimvormend
middel alle afdichtplaatsen in de toevoerleiding naar de
brander.
5.2.9 Meetwaarden opnemen
z Boor in de rookgasleiding op ca. 2 x Ø AA
(rookgasaansluiting) aan de voorkant een gat.
z Voer alle navolgende metingen aan het gastoestel uit:
rookgastemperatuur, CO
2
, CO, NO
X
.
Rookgasverlies
De rookgasverliezen moeten kleiner zijn dan 11 %.
Afb. 33 Modulatiespoel
1
2
3
Gassoort
Branderdruk voor
nominaal
warmtevermogen in
mbar
Nefit Economy
VR (C) 24S
Geringe
belasting
Volle
belasting
Aardgas L 2,4 11,0
Tab. 8 Branderdrukwaarden, gerelateerd aan 15 °C, 1013
mbar en droog gas
Afb. 34 Meetplaats op de rookgasafvoerleiding
LET OP!
Breng het middel niet op elektrische aansluit-
leidingen aan.
25


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