bounce-free switching that extends the life of the compressor motor's starter and contactor

provided the pneumatic circuit meets the required consumption rates

If the inducer motor fails to pull a vacuum of at least 1

providing versatile compatibility across various HVACR applications

automatically interrupting the burner circuit if internal heat exchanger temperatures exceed the maximum set point of 135°F

Siemens Building Technology SSD81U Actuator R-134A bounce-free switching that extends theThe Siemens SSD81U Actuator is a 24V 3 position floating actuator engineered for precise control of Pressure Independent Control Valves (PICV). This non spring return (NSR) electromotoric actuator high torque performance, delivering 56 lbs (250 N) of nominal force to ensure accurate valve positioning in rigorous HVAC applications. Designed for seamless integration with 1 2 inch to 1 1 4 inch valves, it utilizes a direct coupled installation that