Johnson Controls A421AET-01 Temperature Control R-22 3-phase heaters typically require a

3-phase heaters typically require a 2-pole thermostat (like the HUHAAMT2) or must be wired to a 24V contactor system

000 operations

This is the specific negative pressure threshold (measured in inches of water column) required to close the 0130F00001P switch

and Payne valve bodies

Johnson Controls A421AET-01 Temperature Control R-22 3-phase heaters typically require 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