Reznor 197030 Pressure Switch

The Reznor 197030 Pressure Switch is a high-performance HVAC combustion air pressure switch engineered specifically for gas-fired unit heaters. This factory-original OEM Reznor replacement part features a critical set point of .40" wc (water column) with a Single Pole Single Throw (SPST) electrical configuration. Designed for precision, this 0.40" WC pressure switch ensures your inducer motor generates the necessary vacuum to facilitate safe flue gas venting before the ignition sequence begins. It comes equipped with dual 1/4" barb connections for secure pneumatic tubing attachment and includes a mounting bracket for efficient field installation. While commonly used in standard applications, this specific pressure setting also serves as a high altitude pressure switch for Reznor UDX, UDZ, UBX, and UBZ series units (specifically 75k BTU models) when operating between 2,000 and 6,000 feet. Utilizing a genuine Reznor 197030 helps maintain the factory-specified safety sequence and equipment efficiency in demanding commercial and industrial environments.

• OEM Compatibility: Exact replacement for Reznor 197030 and RZ197030, ensuring zero-clearance mounting and terminal alignment.
• Precise Calibration: Factory-set at .40" wc to prevent nuisance tripping or unsafe combustion cycles in compatible unit heaters.
• Durable Construction: Built to withstand the high-cycle demands of industrial gas-fired heating systems.
• Dual Connection: Features dual 1/4" barb connections to provide flexible hose routing for vacuum and atmospheric pressure sensing.
• Altitude Regulation: Essential component for maintaining UDX75 and UDZ75 furnace performance at high-altitude installations.

What does the green label on the Reznor 197030 indicate?
The green label is a visual indicator for technicians that this switch is rated for .40" wc. This helps ensure the correct part is used during maintenance to match the heater's data plate specifications.

Can this switch be used for high-altitude furnace conversion?
Yes, the 197030 pressure switch is the designated component for derating and converting several Reznor models (like the UBX75 or UDAP series) for operation at altitudes up to 6,000 feet.

What are the symptoms of a failing pressure switch?
Common indicators include the inducer motor running continuously without the burner igniting, or the control board throwing a flash code for "Pressure Switch Stuck Open." Replacing with a genuine Reznor 197030 restores the safety circuit integrity.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.