Resideo AP5208-30 Air Flow Switch 321894-709 this relay ensures precise timing

this relay ensures precise timing for the "on" and "off" cycles

The 100112652 manages the electrical signals for the igniter and communicates with the flame sensor

While designed for commercial models like the Plus 100 and Gold Plus 119

or carbon buildup on the assembly that prevents the flame sensor from sending a proper signal to the gas valve

Common Questions What causes a Trane pressure switch to fail

Resideo AP5208-30 Air Flow Switch 321894-709 this relay ensures precise timingThe Resideo AP5208 30 Air Flow Switch is a heavy duty adjustable SPDT pressure switch designed for critical monitoring in commercial and industrial HVACR environments. This OEM air pressure switch features a wide field adjustable setpoint range of 0. 05" to 12. 0" WC, making it a versatile drop in solution for sensing positive, negative, or differential air pressure. Built with a durable metal enclosure, the AP5208 30 utilizes 1 4" barbed fittings for