This 2-way pneumatic valve is rated for a maximum inlet pressure of 125 PSI

What causes the SWT3211 to trip frequently

If your furnace is short-cycling or throwing a pressure switch error code

this part ensures the inducer motor is generating the required static pressure before allowing the ignition sequence to proceed

Nidec-US Motors N157 Inducer Motor 321702-401 This 2-way pneumatic valve isWhen you're troubleshooting a failed furnace exhaust system, the Nidec US Motors N157 Inducer Motor is a rugged, industry standard choice for draft inducer applications. This 1 30HP furnace inducer motor operates at 3000 RPM on a 120Vac (115V nominal) power supply, pulling a consistent 1. 6 Amps. Designed as a direct OEM replacement motor, it features a shaded pole motor design and is thermally protected with an automatic reset to prevent burnout