When using Alternative Wiring diagram, wiring instructions must be followed so power originates from the boiler aquastat. Failure to follow these wiring instructions may result in a secondary source of power being connected to the boiler that may activate it under certain circumstances, causing injury or death.. TACO 3 WIRE ZONE VALVE 1 2 3.. 4. Wire the actuator in accordance with system requirements (see Wiring Diagrams). 5. The plug-in quick connects can be disconnected from the valve actuator for ease of wiring. Insert the corresponding wire into the quick connects (see Wiring Diagrams) and tighten by turning the screw. 6. Caution: Do not jumper power/motor (24 VAC) connection ter-
TACO Manuals, Parts Lists, Wiring Diagrams PDF Downloads, Contact Info. (2013) and wiring diagram; TACO Multi-Volt ZONE SENTRY ZONE VALVE INSTRUCTIONS [PDF] (2016) for HVAC fan coil units, air handlers, line voltage zone valve, retrieved 2017/07/15 . TACO ESP Zone Valve WIRING DIAGRAMS [PDF] (2002). ALTERNATIVE WIRING (24 VAC POWERED INPUT SIGNAL) H N REMOVE JUMPER. DO NOT CONNECT POWER TO N AND H TERMINALS. 24 VAC SIGNAL STAT LIGHT WILL GO ON AND OFF WITH 24 VAC SIGNAL. POWER LIGHT WILL ALWAYS BE OFF. Note: When using Alternative Wiring diagram, the boiler oper- ating control's ZC terminal will see the load of the circulator(s). Warning: