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Wijzigingen op grond van technische verbeteringen voorbehouden Nefit B.V. • http://www.nefit.nl
Service-instructie Nefit SmartLine HR(C) en Nefit SmartLine Basic HR(C) • uitgave 06/2008 101
Remedie 7
frame 301 Transformator controleren;
interne elektrische weerstand
z Demonteer de transformator volgens frame 296 t/m 299.
frame 302
z Stel de multimeter in op "weerstand meten".
z Controleer de weerstand van de verschillende spoelen
van de transformator volgens de tabel.
frame 303
z Monteer de transformator in omgekeerde volgorde.
z Neem het cv-toestel in bedrijf volgens frame 78 Buiten-
mantel monteren, 80 Stekker in wandcontactdoos en
81 Netschakelaar op "1".
Contact Weerstand [Ω]
4 - 6 51.1 ±10%
4 - 5 28.4 ±10%
13 - 14 1.58 ±10%
14 - 15 1.78 ±10%
16 - 17 2.47 ±10%
18 - 19 574 ±10%
frame 304 Transformator controleren; voedingsspan-
ningkabel en laagspanningskabel
z Demonteer de transformator volgens frame 296 t/m 299.
frame 305
z Stel de multimeter in op "weerstand meten" (1).
z Controleer de voedingsspanningkabel en laagspannings-
kabel op breuk. De elektrische weerstand gemeten over
elke ader afzonderlijk moet nagenoeg 0
Ω zijn (2). Meet
tussen de stekker en de zwart gemaakte contacten (hoog-
spanningsconnector pin 3, 4, 7 en laagspanningscon-
nector pin 1, 25, 27, 28, 52, 80, 81) op de montagevoet
van de branderautomaat (3) volgens frame 366 of 367.
z Controleer de voedingsspanningkabel en laagspannings-
kabel op interne kortsluiting. De elektrische weerstand
gemeten tussen twee willekeurige aders moet oneindig
hoog zijn.
z Controleer de elektrische weerstand over de voedings-
spanningkabel en laagspanningskabel naar massa. Deze
moet over elke ader afzonderlijk oneindig hoog zijn.
frame 306
z Monteer de transformator in omgekeerde volgorde.
z Neem het cv-toestel in bedrijf volgens frame 78 Buiten-
mantel monteren, 80 Stekker in wandcontactdoos en
81 Netschakelaar op "1".
101


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