MAMAC Systems EP-321 Tristate Pneumatic Transducer 30067439-890 High Airflow Efficiency: The 27-degree

High Airflow Efficiency: The 27-degree pitch and 4-blade design are optimized for high-demand cooling cycles

This specific component is the direct replacement for S1-024-25329-703

The Functional Devices TR75VA004 is a versatile 75VA multi-tap transformer designed for reliable power stepping in commercial and industrial HVACR control circuits

or if they remain stuck closed in the upright position

verify static pressure and temperature rise against the data plate before assuming the switch is faulty

MAMAC Systems EP-321 Tristate Pneumatic Transducer 30067439-890 High Airflow Efficiency: The 27-degreeThe MAMAC Systems EP 321 is a high performance tri state to pneumatic transducer designed for precise HVAC pneumatic control. This unit effectively bridges the gap between digital controllers and pneumatic actuators by converting a 24VAC VDC tristate signal into a stepped pressure output. Engineered for reliability in building automation systems, the EP 321 features a 0 20 PSIG output range and a sophisticated pulse train mechanism that allows any