Caleffi 643 Z-ONE - Manual (Page 5)

B A
AB
User
outlet
3-way installed on the return
pipe with mixer position and
ON/OFF operation
B A
AB
User
outlet
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)
B A
A B
AB
(NG) (NO)
AB
3-way installed on the flow pipe
with diverter position and
ON/OFF operation
Valve operating
conditions
2 way 3 way
With no electric supply Channel “A” closed Channel “A” closed
Channel “B” open
Channel “AB” open
With no electric supply Channel “A” open Channel “A” open
Channel “B” closed
Channel “AB” open
Manual opening Channel “A” open Channel “A” open
Channel “B” open
Channel “AB” open
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