Thermal Actuators 24V 2-Wire

Our thermal actuators are easy to install and can be controlled by either 24VAC ON-OFF thermostats or using pulse-width modulation of either AC or DC power.  We stock the 2-wire models which do not provide an end-switch since these days most installers are using either ECM variable speed circulators or multi-zone controls which provide an external end-switch.  Be sure to order enough thermal actuators to match the number of loops for each manifold if you wish to providing zoning.