Armstrong Furnace 20274507 Pressure Switch 321894-706 This antenna serves as the

This antenna serves as the communication hub

The Sporlan 168303 BQC-AAA Cartridge is a field-replaceable internal component engineered for Type BQ Balanced Port TEV bodies

The unit features 18-inch leadwires for flexible wiring within the junction box and includes a manual lever for manual valve positioning during system troubleshooting or filling

Direct Fit: 3-inch probe length ensures accurate air temperature monitoring in OEM housings

and M9220 Series Electric Actuators to flanged iron globe valves

Armstrong Furnace 20274507 Pressure Switch 321894-706 This antenna serves as theThe Armstrong Furnace 20274507 Pressure Switch is a high performance, OEM replacement part specifically engineered for HVAC systems operating in elevated environments. This high altitude pressure switch is a critical safety component designed to monitor and regulate internal air pressure, ensuring that your furnace operates within its designated airflow parameters to prevent hazardous exhaust buildup. By accurately sensing atmospheric changes, it