As a technician, you know that keeping a system operating at peak efficiency requires reliable components like the Antunes Controls 8023202113 Air Switch. This SMD series air pressure switch is a specialized differential pressure sensor calibrated to a fixed set point of 0.30" W.C., making it essential for proving airflow in commercial HVAC and food service equipment. This kit includes a 90-foot tube, providing substantial reach for remote mounting or complex replacement pressure switch installations where the sensing point is distant from the control board. The Antunes 8023202113 features a sensitive diaphragm designed to monitor positive, negative, or differential air pressure with high accuracy. Built for the rigors of mechanical rooms, its SPDT snap-action switch is rated to handle up to 10 Amps at 125 VAC, ensuring it can switch power to gas valves or blowers without arcing. The HVAC air prover includes a 1/8" NPT connection and a 90-degree tube fitting, simplifying the process of HVAC air switch installation even in tight cabinets or industrial combustion setups. Key Benefits Factory Calibrated Precision: Fixed at 0.30" W.C. to ensure consistent draft proving without the need for field adjustment. Extended Installation Flexibility: The included 90' tubing allows for versatile placement in large-scale commercial kitchens or industrial HVAC systems. Durable SPDT Configuration: High-quality snap-action electrical switch supports various wiring configurations for proving or interlocking circuits. Wide Temperature Tolerance: Engineered to operate reliably in ambient conditions ranging from -40°F to 170°F. Robust Build Quality: Sheet metal construction and a sensitive diaphragm provide long-term stability under varying surge pressures up to 20" W.C. Common Questions How do I test if the pressure switch is closing? With the inducer motor running, use a manometer to verify the vacuum at the port is higher than 0.30" W.C. You can then check for continuity across the COM and NO terminals on the SPDT switch. Can I use this switch for both pressure and vacuum applications? Yes, the 8023202113 is designed as a differential switch, meaning it can sense positive pressure, negative pressure (vacuum), or the difference between two points depending on how you plumb the 1/8" NPT and barb fittings. What should I do if the switch Chatters or cycles rapidly? Check the tubing for moisture or kinks. In high-vibration environments, ensure the switch is mounted securely to a flat surface using the integrated mounting holes to prevent mechanical interference with the diaphragm. 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.
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