Johnson Controls A28PJ-1 Agricultural Thermostat 30067439-890 Common Questions How do I

Common Questions How do I know if my sensing probe needs replacement

and VR830xN series valves commonly found in Lennox equipment

and features an adjustable minimum position set-screw to maintain bypass airflow without additional hardware

ensuring minimal downtime in high-stakes commercial refrigeration and HVAC systems

the housing includes a 1/2-inch conduit enclosure and reverse wiring protection

Johnson Controls A28PJ-1 Agricultural Thermostat 30067439-890 Common Questions How do IThe Johnson Controls A28PJ 1 is a commercial grade two stage temperature control engineered for precision in demanding environments such as livestock confinement, nurseries, and greenhouses. This agricultural thermostat features two SPDT switches and a liquid filled, 1 3 8" x 2 1 4" coiled sensing bulb for high accuracy response. Built into a rugged NEMA 4X enclosure, the unit resists moisture, dust, and corrosive vapors common in barn and dairy