Nordyne 632550R Pressure Switch 320735-701 Technicians should note that using

Technicians should note that using the ST073921AV helps maintain consistent CFM output and prevents oil carryover in modular systems

ensuring broad refrigerator and AC part compatibility

allowing technicians to perform maintenance without specialized tools

As a liquid propane gas valve

the serviceable integral stainless steel strainer and reinforced EPDM diaphragm simplify field maintenance while maintaining consistent pressure regulation under varying supply velocities

Nordyne 632550R Pressure Switch 320735-701 Technicians should note that usingThe 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