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What does the NEMA 4 rating mean for this pressure switch
Corrosion Resistance: Stainless steel build prevents rust and degradation from combustion byproducts
including airflow switches and fuel pressure switches
Engineered for precise integration with Burnham heating systems
Nordyne 632555 Pressure Switch 320788-703 What does the NEMA 4The Nordyne 632555 Pressure Switch is a critical dual stage safety component engineered for high efficiency gas furnaces and packaged units. As a genuine OEM HVAC replacement part, this switch monitors the negative pressure generated by the draft inducer motor, ensuring the flue is clear and combustion gases are safely exhausted before the ignition sequence begins. Designed to replace or cross reference with Nordyne 632555R, this component is
US$ 49.95
US$ 49.95
US$ 64.95