Johnson Controls FS1-6 Flow Switch 30067439-890 Ensure the second stage is

Ensure the second stage is mapped to the 'Aux' terminal to allow the thermostat to call for supplemental heat when the outdoor unit cannot maintain the setpoint

The internal contact block is factory-sealed to maintain high contact force until the precise break point

the 156T2548A is specifically designed for the larger commercial T7400

This genuine Nordyne 01-0175 Blower Motor is the direct OEM replacement engineered for high-static applications in Nordyne

Cartridge Design: Simplified housing integration allows for faster swap-outs in the field compared to standard pill-block inserts

Johnson Controls FS1-6 Flow Switch 30067439-890 Ensure the second stage isThe Johnson Controls FS1 6 Flow Switch is a professional grade solution for proving liquid flow in critical HVACR and industrial piping systems. Engineered with a waterproof construction and a corrosion resistant enclosure, this SPDT flow switch provides reliable signaling for pump control, chiller protection, and process cooling loops. The unit features a magnetically coupled design that isolates the electrical switch housing from the process media,