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Onderhoud12
Nefit B.V. • http://www.nefit.nl Wijzigingen op grond van technische verbeteringen voorbehouden!
50 Installatie-instructie Nefit SmartLine Basic HR 24‚ HRC 24/CW3 en HRC 24/CW4 • uitgave 06/2009
12.4 Warm water hoeveelheid controleren
z Controleer de warm water doorstroomhoeveelheid,
(Æ paragraaf 9.2.7, pag. 37) en, indien nodig, stel deze af.
Indien er onvoldoende warm water is, dan de platenwisse-
laar uitwisselen, (Æ paragraaf 12.4.1).
12.4.1 Platenwisselaar uitwisselen, alleen bij combi-
toestellen
z Neem het cv-toestel uit bedrijf door de netschakelaar op
stand "0" te zetten.
z Tap de cv-installatie af.
z Sluit de koudwatertoevoer.
z Laat het water uit het verwarmingstoestel lopen.
z Open een sanitair-warmwaterkraan.
z Verwijder de sifon (Æ fig. 52).
z Draai de beide schroeven van de platenwisselaar los
(Æ fig. 53).
z Haal de platenwisselaar eruit (Æ fig. 54).
z Vervang indien nodig de 4 O-ringen.
z Monteer een nieuwe (schone) platenwisselaar.
z Monteer alle onderdelen in omgekeerde volgorde.
z Open de koudwatertoevoer.
z Open de sanitair-warmwaterkraan om het cv-toestel
grondig door te spoelen.
z Sluit de sanitair-warmwaterkraan en sluit het cv-toestel
weer op het cv-circuit aan.
z Neem het cv-toestel elektrisch in bedrijf.
z Vul de cv-installatie volgens paragraaf "Vullen en
ontluchten van de cv-installatie", pagina 32.
12.5 Onderhoud noteren
Onderteken het onderhoudsprotocol (Æ paragraaf 15.3
"Onderhoudsprotocol", bladzijde 64).
fig. 53 Schroeven van platenwisselaar losdraaien
LET OP!
Uitstromend heet water!
fig. 54 Platenwisselaar vervangen
LET OP!
Na montage alle koppelingen controleren op
eventuele lekkage!
50


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