Caleffi 642-Serie Bedienungsanleitung Seite 5

( NG ) A B ( NO )
AB
Valve operating
conditions
3 vie
(in assenza di alimentazione la via A è chiusa)
3 way
(if there is no electric supply, channel A is closed)
Dreiwegeventil
(ohne Zuleitung ist der Weg A geschlossen)
3 voies
(sans alimentation électrique la voie A est fermée)
3 vías
(en ausencia de alimentación la vía A está cerrada)
3 vias
(na falta de alimentação a via A está fechada)
3 weg
(als er geen aanvoer is, is A gesloten)
3-way installed on the flow pipe
with diverter position and
ON/OFF operation
B A
AB
With no electric supply
With no electric supply
Manual opening
3-way installed on the return
pipe with mixer position and
ON/OFF operation
2 way
Channel "A" closed
Channel "A" open
Channel "A" open
5
B A
AB
3 way
Channel "A" closed
Channel "B" open
Channel "AB" open
Channel "A" open
Channel "B" closed
Channel "AB" open
Channel "A" open
Channel "B" open
Channel "AB" closed