Johnson Controls A28PJ-1 Agricultural Thermostat 30067439-890 tamper-resistant HVAC guard built for

tamper-resistant HVAC guard built for the demands of the field

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

Does this valve support high-capacity furnace and boiler loads

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

What is the tonnage rating for this expansion valve

Johnson Controls A28PJ-1 Agricultural Thermostat 30067439-890 tamper-resistant HVAC guard built forThe 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