Replacement Control Board

This 0.70in WC SPST pressure switch is a reliable OEM replacement component designed for Nordyne HVAC systems and compatible equipment. The switch features a fixed pressure setpoint of 0.70 inches water column with fast-action response characteristics, ensuring accurate and dependable operation in demanding HVAC applications. The pressure switch utilizes single pole single throw (SPST) switching technology to signal positive pressure conditions to the control board. This critical safety feature confirms adequate system pressure before allowing the control board to proceed with normal operations, enhancing overall system reliability and protecting equipment from unsafe operating conditions. The unit connects via a 1/4in barbed fitting for straightforward installation into existing pneumatic lines. Weighing just 0.15 lbs, this compact switch integrates seamlessly into HVAC control systems without adding significant weight or bulk. Its robust design and fixed setpoint configuration make it ideal for replacement in commercial and residential HVAC installations where consistent pressure monitoring is essential. This switch serves as a direct replacement for Nordyne model 632489R and compatible pressure switch applications across multiple HVAC equipment platforms. Industrial technicians and HVAC contractors rely on this component for routine maintenance, troubleshooting, and system repairs where pressure signal confirmation is required for safe equipment operation. Whether you're stocking replacement parts for service operations or managing fleet maintenance schedules, this pressure switch delivers the performance and compatibility expected from OEM-quality HVAC components at competitive industrial supply pricing.