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remeha OD 13B/14B/15B
6.2 Hydraulische Schaltung zur Rücklauftemperatur-
anhebung bei Zweikesselanlage mit drucklosem
Verteiler und nachgeschalteten Mischerkreisen mit
oder ohne Brauchwasserbereitung
Rücklauftemperaturanhebung mittels kesselseitigem 3-
Wege-Mischer.
Kesselfolgeumkehr.
Reglervarianten: K2R-F plus K2R-S plus 2 x UM.
Bild 12
Die
rematic
Regelung K2R-F (Master) übernimmt die
zweistufige Brennersteuerung für Kessel 1, die Pum-
penregelung Uw sowie die Mischerfunktion zur Rücklauf-
anhebung Kessel 1; gleichzeitig die Brauchwasserberei-
tung im Vorrangbetrieb bei geschlossenen Heizungs-
mischern.
Die Kesselfolgeumkehr ist zeitabhängig wählbar.
Die
rematic
Regelung K2R-S (Slave) übernimmt die
zweistufige Brennersteuerung für Kessel 2, die Pumpen-
regelung Uw2, sowie die Mischerfunktion zur Rücklauf-
anhebung Kessel 2.
Die Heizkreise werden nach separat einstellbarer Heiz-
kurve mittels UM-Regelungen geregelt.
Legende:
AF (Ba)= Aussentemperaturfühler
KF (Bk)= Kesseltemperaturfühler
RF (Br) = Rücklauftemperaturfühler
VF (Bv)= Vorlauftemperaturfühler
BF (Bb)= Boilerfühler
Mr1 = 3-Wege-Mischer zur Rücklaufanhebung
Kessel 1
Uw1 = Kesselpumpe Kessel 1
Mr2 = 3-Wege-Mischer zur Rücklaufanhebung
Kessel 2
Uw2 = Kesselpumpe Kessel 2
BLP = Boilerladepumpe
M1 = Mischer Heizkreis 1
U1 = Umwälzpumpe Mischerkreis 1
M2 = Mischer Heizkreis 2
U2 = Umwälzpumpe Mischerkreis 2
HK1 = Heizkreis 1
HK2 = Heizkreis 2
UM = Folgeregler für Mischerkreis.
18


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