Resideo 40003916-008 Actuator R-134A Optimized Diagnostics: Re-establishes access to

Optimized Diagnostics: Re-establishes access to the boiler user interface for rapid fault identification and parameter adjustment

maintaining system integrity even in high-humidity applications

ensuring a drop-in fit that eliminates the need for bracket modifications or shaft adjustments in the field

Is an auxiliary switch included

Rugged Housing: Includes a standard 2x4 utility box enclosure with knockouts to protect electrical connections in demanding mechanical environments

Resideo 40003916-008 Actuator R-134A Optimized Diagnostics: Re-establishes access toThe Resideo 40003916 008 is a high performance replacement zone valve actuator engineered for precise flow control within hydronic heating systems. Specifically designed for use with the V8044C series zone valve body, this 24V 50 Hz powerhead is a critical component for technicians maintaining residential and light commercial multi zone layouts. By converting electrical signals from the thermostat into mechanical action, the actuator drives the valve