CALEFFI Z-one Z2 Series Handbuch - Seite 4

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CALEFFI Z-one Z2 Series Handbuch
(NC) A
3-way valve with normally closed actuator
(Note: 3-way uses only normally closed actuator)
Operation of Normally Closed Valve
N.C. without power
N.C. opened with power
N.C. manually opened
Manual Open (NC act only)
The manual opening is
achieved by moving the
manual opening lever to
the locked position. When
power
is
applied,
manual
lever
automatically.
B (NO)
AB
the
unlocks
2-way
Port "A" closed
Port "A" opened
Port "A" opened

Wiring Diagram

3-way installed on the supply
in diverting configuration
3-way installed on the return
3-way
Port "A" closed
Port "B" opened
Port "AB" opened
Port "A" opened
Port "B" closed
Port "AB" opened
Port "A" opened
Port "B" opened
Port "AB" opened