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Inconsistent voltage at the reversing valve is another common indicator
this genuine OEM York HVAC part ensures physical port alignment and brazing compatibility without the need for field modifications or line re-piping
Enhanced Durability: Constructed from professional-grade materials to handle the operational temperatures of high-efficiency condensing furnaces
Constructed from non-combustible refractory fiber for superior fire protection
Nordyne 632550R Pressure Switch 320788-704 Inconsistent voltage at the reversingThe 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