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Druckminderer
Wenn der Versorgungsdruck 80 % der Einstellung des Ventils oder
der Sicherheitsgruppe übersteigt (Beispiel: 8 bar / 0,8 MPa) für eine
auf 10 bar / 1,0 MPa) eingestellte Sicherheitsgruppe), muss vor dem
Gerät ein Druckminderer montiert werden. Es ist zweckmäßig, den
Druckminderer hinter den Wasserzähler einzubauen, damit in den
Kalt- und Warmwasserleitungen des Gebäudes annähernd gleiche
Druckverhältnisse herrschen.
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Warmwasserzirkulationsleitung
Damit das Warmwasser bei Öffnen der Hähne sofort zur Verfügung
steht, kann eine Zirkulationsschleife zwischen den Entnahmestellen
und der Zirkulations-Verrohrung des Trinkwassererwärmers
installiert werden. In dieser Schleife muss eine Rückschlagklappe
vorgesehen werden.
Zum Optimieren des Energieverbrauchs die Warmwasser-
Zirkulationsleitung durch die Regelung des Heizkessls
oder durch eine zusätzliche programmierbare
Zeitschaltuhr ansteuern.
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Maßnahmen zum Verhindern des Rückfließens von
erwärmtem Wasser
Im Kaltwasserzulauf des Brauchwasserkreises ist ein
Rückschlagventil vorzusehen.
BP 150...500-2 4. Anlage
21/07/2015 - 300027013-001-03
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