By verifying flame rectification signals and managing the gas valve relay

which must match the motor's directional output to move air correctly

Whether you are servicing JE2H045N or Z81S series equipment

As a Single Pole Double Throw (SPDT) switch

Reduced Vibration: Equipped with a cradle base (resilient mount) to isolate motor harmonics and ensure quieter operation in residential or commercial settings

Siemens Building Technology SKD82.51U Actuator 321894-708 By verifying flame rectification signalsThe Siemens Building Technology SKD82. 51U Actuator is a heavy duty electro hydraulic valve actuator designed for precise flow control in demanding HVAC systems. Operating on a 24V AC power supply, this 3 position actuator provides reliable spring return functionality, ensuring the valve returns to its fail safe position during a power loss. Engineered for use with Siemens VF and VG valves, it features a 20 mm stroke and an integrated positioner for