Nordyne 632550R Pressure Switch 320788-704 Designed with 3/8" x 5/8"

Designed with 3/8" x 5/8" ODF connections

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

Enhanced Durability: Constructed from professional-grade materials to handle the operational temperatures of high-efficiency condensing furnaces

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

Inconsistent voltage at the reversing valve is another common indicator

Nordyne 632550R Pressure Switch 320788-704 Designed with 3/8" x 5/8"The 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