Nordyne 632550R Pressure Switch 320788-704 this genuine OEM York HVAC

this genuine OEM York HVAC part ensures physical port alignment and brazing compatibility without the need for field modifications or line re-piping

Fail-Safe Logic: Integrated spring return functionality provides an essential safety layer by resetting the valve during power interruptions

the liquid-filled sensing bulb and capillary system are designed to maintain repeat accuracy regardless of cross-ambient temperature fluctuations

which can lead to improper vacuum readings and system lockouts

Inconsistent voltage at the reversing valve is another common indicator

Nordyne 632550R Pressure Switch 320788-704 this genuine OEM York HVACThe Nordyne 632550R Pressure Switch is the genuine OEM replacement for the legacy 632550 model, specifically engineered for high efficiency Nordyne furnace units and related HVAC systems. As a critical safety component, this normally open (NO) pressure switch is factory calibrated to a 1. 0" WC make and 0. 7" WC break setpoint. It utilizes a negative pressure diaphragm to verify the draft inducer motor is generating sufficient static pressure before