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For contractors managing industrial unit heater maintenance
Engineered Precision: Maintains accurate stem alignment and stroke timing to prevent premature packing wear and hunting
simply remove the jumper and connect the original wiring harness directly to the board
C) above the setpoint
Johnson Controls A421AET-01 Temperature Control 322838-752 For contractors managing industrial unitThe 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
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