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Onderhoud7
30 Installatie-instructie Nefit Economy VR(C) 24S • uitgave 03/2006
Wijzigingen op grond van technische verbeteringen voorbehouden! Nefit B.V. • http://www.nefitdealer.nl
7 Onderhoud
Werkzaamheden ter voorbereiding
z Maak de installatie spanningsvrij.
z Sluit de gaskraan
z Borgschroef losdraaien en mantel verwijderen.
z Installatie aan de zijde van het cv-water en het warm water
vergrendelen en water uit het toestel aftappen via de bijvul-
en aftapkraan. Na beëindiging van de onderhouds-
werkzaamheden de afsluitkranen openen, water bijvullen
en installatie ontluchten.
7.1 Reinigen van warmtewisselaar en
brander
z Demonteer de branderafdekking (afb. 39, pos. 1).
z Demonteer de stralingsplaat (afb. 39, pos. 3).
z Draai de wartelmoer van de injectorplaat los (afb. 39,
pos. 1).
z Verwijder de afdekking (afb. 39, pos. 2) van de
gloeiontstekings- en ionisatie-elektrode.
z Schroef de schroeven links en rechts los (afb. 40, pos. 2)
en neem de injectorplaat af.
Afb. 39 Demonteren van de branderafdekking
3
1
2
AANWIJZING!
De hier beschreven natte reiniging van brander
en warmtewisselaar dient te worden uitgevoerd
wanneer het cv-toestel sterk verontreinigd is.
Bij 2-jaarlijks onderhoud is het voldoende de
brander en de warmtewisselaar in ingebouwde
toestand met een zachte borstel te reinigen.
Hiervoor dienen de afdekkap van de brander,
de branderkamer, ionisatiepen, gloeiplug,
brander en manifold te worden verwijderd.
Afb. 40 Verwijderen van de injectorplaat
1
2
30


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