this specific part is calibrated for Natural Gas (NAT)

utilizing a 4-way pilot valve to provide positive reversals even at low pressure differentials

Key Benefits: OEM Precision Fit: Engineered specifically for Carrier and Bryant models to eliminate vibration and rattling often found with universal aftermarket guards

or differential air pressure in HVAC systems and industrial process control

Angle body design allows for compact piping and simplified installation in tight mechanical headers

Lennox 80W53 Pressure Switch 322056-301 this specific part is calibratedThe Lennox 80W53 Pressure Switch is a critical OEM replacement part engineered for high efficiency furnace applications. This single pole single throw (SPST) switch is factory calibrated to a 0. 68" WC (water column) set point, ensuring precise monitoring of the inducer motor's draft. A failure in this component often results in a sequence of operation lockout, as the control board must verify proper venting before allowing gas valve ignition.