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This is a non-regulating operator
this valve is a critical component for HVAC pneumatic control
The fire-retardant glass-filled polyester case (UL 94 V-0) and reverse wiring protection ensure hardware durability during commissioning and routine maintenance
ensuring consistent thermal exchange across the evaporator coil
Johnson Controls A421AET-01 Temperature Control 322838-753 This is a non-regulating operatorThe Johnson Controls A421AET 01 is a line voltage electronic temperature control designed for versatile HVACR applications, providing a reliable alternative to traditional electromechanical thermostats. Operating on 120 240 VAC, this SPDT controller features a broad setpoint range of 40 to 212F, making it ideal for both refrigeration and heating logic. Built with a NEMA 1 enclosure for surface mounting, the unit includes a high visibility front panel