Resideo 40003916-012 Actuator Head 326058-758 use terminals Red (Common) and

use terminals Red (Common) and Blue

How do I verify if the 122858 switch has failed

This pneumatic actuator is the industry standard for contractors requiring precise mechanical control and rugged durability in critical airflow management systems

specifically fitting models such as DDYZ-F060

Resideo 40003916-012 Actuator Head 326058-758 use terminals Red (Common) andProfessional grade Resideo 40003916 012 Actuator Head provides a high reliability solution for field replacement on V8043G zone valves. Designed specifically for 24V hydronic heating systems, this normally closed replacement head integrates a high torque motor and a built in SPST end switch to ensure precise auxiliary equipment sequencing. This unit is the direct replacement for the Honeywell V8043G 1000 series and contemporary 5000 series valve