Nordyne 632555 Pressure Switch 320788-703 Engineered for precise integration with

Engineered for precise integration with Burnham heating systems

System Efficiency: Reduces heat loss through the venting system during the off-cycle

the 2-wire 24V motor is compatible with most HVAC zone control boards using M1 and M6 terminals or a dedicated transformer-switched circuit

the 10-618-05 is a standard heavy duty boiler safety valve replacement that ensures HVAC system compliance with local mechanical codes and ASME standards

Thermal Stability: Manufactured from specialized elastomers that resist compression set under high-BTU operating conditions

Nordyne 632555 Pressure Switch 320788-703 Engineered for precise integration withThe 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