This OEM Trane pressure switch functions as a fail-safe

range with ±2% full-scale accuracy

The Ashcroft 451010A02L-0/30 Gauge is rated for ±1% full-scale accuracy (ASME B40

this specific assembly is rated for fluid and condensate transfer

Fasco A171 Blower Motor 318518-761 This OEM Trane pressure switchThe Fasco A171 Blower Motor is a high performance centrifugal blower assembly designed specifically for demanding HVAC applications, including use as a Lennox 7021 9450 replacement motor. Running on a standard 115V 60Hz single phase power supply, this PSC (Permanent Split Capacitor) motor operates at a dedicated 3000 RPM single speed, delivering approximately 110 CFM of airflow. The unit features Class B insulation and is thermally protected to handle