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Silicon nitride construction provides a faster heat-up time and a longer operational lifespan than standard carbide igniters
C) above the setpoint
Enhances safety by preventing refrigerant leakage through old
simply remove the jumper and connect the original wiring harness directly to the board
Engineered Precision: Maintains accurate stem alignment and stroke timing to prevent premature packing wear and hunting
Johnson Controls A421AET-01 Temperature Control 322838-752 Silicon nitride construction provides aThe 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