MAMAC Systems EP-321 Tristate Pneumatic Transducer 30067439-890 verify static pressure and temperature

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

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

As a direct replacement for ARM1008

While it is a genuine Carrier OEM part

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

MAMAC Systems EP-321 Tristate Pneumatic Transducer 30067439-890 verify static pressure and temperatureThe 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