The Johnson Controls A-4400 Series is a line of refrigerated air dryers. These dryers supply air to pneumatic control systems and support continuous operation. The A-4400 Series air dryers use R-134a refrigerant for reliable, environmentally friendly cooling. They support optional air purification systems. These dryers use evaporator designs that eliminate the need for hot gas bypass valves and support consistent water removal in various conditions. The A-4400 Series air dryers are available in 3 flow-capacity sizes, and all 3 fit the same universal cabinet. The 3 flow capacity sizes are 5.7 L/s, 8 L/s, and 10.9 L/s.
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