Caleffi 24v normally actuator closed aux switch wire Caleffi z-one Caleffi zone valve wiring diagram
Caleffi z111000 z-one 24v normally closed valve actuator with aux Caleffi actuator normally aux valve switch closed 24v wire Caleffi valves motorized npt
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Caleffi Z-one - 1 NPT 2-way Straight Valve Body for Motorized Zone Valves
Caleffi Zone Valve Wiring Diagram - Wiring Diagram
Z111000 - Caleffi Z111000 - 24V Normally Closed Actuator w/ aux. switch