Johnson Controls A28AA-36 Temperature Control Els PW 17895 this specific pressure setting also

this specific pressure setting also serves as a high altitude pressure switch for Reznor UDX

this 30 mV thermocouple generates the necessary thermal electromotive force to signal the gas valve's power unit

Durable Galvanized Steel: Resists corrosion and warping caused by consistent exposure to flue gas moisture and high temperatures

making it suitable for use in air plenums as per NEC Section 300

Johnson Controls A28AA-36 Temperature Control Els PW 17895 this specific pressure setting alsoThe Johnson Controls A28AA 36 is a heavy duty two stage temperature control engineered for precision in HVACR applications requiring staged heating or cooling. This A28 Series manual reset thermostat features two SPDT switch actions, allowing for independent circuit control over a wide voltage range of 120 208 240 277 Vac. Built with a 40 90 degree setpoint range, the unit maintains a fixed 3 degree differential for each stage, with an adjustable 2 7