Siemens Building Technology SFA11U Actuator 318820-201 These timings are critical for

These timings are critical for ensuring a stable pilot flame is established before the main fuel valve is energized

Manual Override Capability: Allows for direct manual control and system testing without requiring a signal from the front-end

including series like ATXR226RC-W

or a malfunctioning fan belt

ensuring durability when managing contactor coils and motor starters

Siemens Building Technology SFA11U Actuator 318820-201 These timings are critical forThe Siemens SFA11U Actuator is a line voltage, 120V normally closed zone valve actuator designed for high precision control in hydronic heating and cooling systems. Engineered for seamless integration with the Siemens 599 Series zone valves, this 2 position spring return actuator features a 1 10 inch (2. 5 mm) stroke and provides 24 lb (105 N) of nominal force to ensure positive valve closure. The SFA11U is UL listed for plenum installations, making