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The 120V HSI output provides consistent voltage to the igniter
the NEMA 1 enclosure simplifies mounting in mechanical rooms while meeting UL listed safety standards
the furnace clicking without igniting
It comes equipped with a spring return actuator that provides a reliable failsafe
preventing the common "chatter" or contact pitting often seen in high-cycle environments
Resideo VU842A1046 Actuator 321142-301 The 120V HSI output providesThe Resideo VU842A1046 is a professional grade 24V two position actuator engineered for precise zone control in hydronic heating and cooling systems. Built for high demand residential and light commercial applications, this motor driven actuator is specifically designed for normally open (N. O.) valve bodies, such as the Resideo VU52 and VU54 series. It features a robust spring return fail safe mechanism, ensuring the valve returns to its default