Johnson Controls A421ABC-06 Temperature Control 30067439-890 Per ASSE 1001 standards

Per ASSE 1001 standards

providing a reliable cut-out when the probe reaches the low setpoint

common in HVACR valve replacement scenarios

Precise Thermal Calibration: Engineered for fixed 105°F open and 165°F close operation to maintain safe furnace operating parameters

non-adjustable airflow proving switch designed for critical monitoring in duct heaters

Johnson Controls A421ABC-06 Temperature Control 30067439-890 Per ASSE 1001 standardsThe Johnson Controls A421ABC 06 is a professional grade electronic temperature control engineered for high performance HVACR applications. As the direct replacement for A419ABC 4, this unit offers a seamless transition for technicians upgrading legacy systems. Operating on 120 240 Vac, it provides a versatile single stage control solution with an SPDT output relay, making it ideal for managing compressors, solenoid valves, or heating elements. This