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Sicherheitstemperaturbegrenzer (STB)
Abb. 12
Der Rückstellknopf A des STB ist auf der Vorderseite
des Heizkessels angebracht.
Auslösen der Funktion
Falls die Kesselwassertemperatur 95 °C überschreitet,
löst der STB aus.
Hinweis
Der Sicherheitstemperaturbegrenzer kann nur von
Hand entriegelt werden.
Aufheben der Funktion
Hinweis
Die Rückstellung (Entriegelung) ist erst bei einer Kes-
selwassertemperatur von ca. 70 °C möglich.
Prüfen Sie nach jedem Auslösen des STB die Rück-
stellung der thermischen Ablaufsicherung.
1. Schrauben Sie die Schutzkappe A ab.
2. Drücken Sie den grünen Knopf des STB.
Ein leises „Klacken“ ist zu hören und der STB ist
entriegelt.
3. Quittieren Sie die Übertemperatur an der Bedien-
einheit der Regelung mit d.
4. Schrauben Sie die Schutzkappe A wieder über
den grünen Knopf.
Ein-/Ausschalten
Maßnahmen bei Überhitzung (Fortsetzung)
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