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6 | Technische gegevens en afmetingen
2.6 Elektrisch schema
Afb. 2 Elektrisch schema
[1] Servoafsluiter (normaal geopend)
[2] Membraanklep
[3] Pilotventiel (normaal gesloten)
[4] Ionisatiesonde
[5] Bougie
[6] Rookgascontrole
[7] Temperatuurbegrenzer
[8] Ontsteking
[9] LED - storingmelding
[10] LED - controlelampje brander
[11] Hoofdschakelaar
[12] Hydrogenerator
2.7 Werking
Deze geiser beschikt over een automatische, elektrische
ontsteking, waardoor de bediening vereenvoudigd wordt.
Zet hiervoor de schakelaar op aan (afb. 3).
Nadat dit is gedaan, wordt de automatische ontsteker gestart
op het moment dat de heetwaterkraan wordt geopend.
Eerst gaat de waakvlam aan en ca. 4 seconden later eveneens
de hoofdbrander. De waakvlam gaat na korte tijd weer uit.
Op deze manier wordt veel energie bespaard, omdat de waak-
vlam slechts gedurende de minimaal noodzakelijke tijd brandt
om de hoofdbrander te ontsteken, in tegenstelling tot traditio-
nele ontstekingssystemen waar de waakvlam altijd brandt.
In dat geval:
Sluit en open de heetwaterkraan om het ontstekingsproces
te herhalen totdat alle lucht is verdwenen.
Soms mislukt de ontsteking omdat er nog
lucht in de gasleiding zit.
6


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