Pex Watts Actuators | Pz656104, 4-Wire Valve Actuator (24 Vac, Normally Closed)

Great For Multiple Small Radiant Zones. The Valve Actuator Provides On/Off Flow Control To Individual Radiantcircuits. Incorporates An Indicator Window That Allows You To Visually Determine Whether The Valve Is Fully Open Orclosed. Flow Can Be Balanced Prior To Installing By Turning The Adjustment Valve Under The Blue Cap. Actuator Is24 Vac (1.6 W) With Four Wires To Connect To The Thermostat And Close An End Switch.