Antunes Controls 8224212046 Pressure Switch

The Antunes Controls 8224212046 is a precision-engineered air differential pressure switch designed for critical monitoring of air, gas, and combustion airflow in commercial HVACR systems. This SPDT pressure switch features an adjustable set point range of .05" to 9" WC, providing reliable differential pressure sensing for draft proving, filter status monitoring, and ventilation control. Built for durability in demanding environments, the unit includes a 1/4" male NPT bottom connection and a 1/8" female NPT side connection to streamline integration into existing piping. With FM approval, this switch meets rigorous safety standards for combustion air proving and industrial safety interlock applications. Its Single Pole Double Throw (SPDT) electrical configuration allows for flexible wiring to normally open or normally closed circuits, ensuring compatibility with a wide range of control boards and safety strings. This Antunes pneumatic switch is a standard-issue component for technicians requiring repeatable accuracy and long-term stability in HVAC pressure monitoring setups.

• Adjustable Range: Provides precise .05 to 9 inches water column set point flexibility for diverse application requirements.
• Versatile Porting: Features a dual-port design with 1/4" male NPT and 1/8" female NPT for ease of installation in tight mechanical rooms.
• Industrial Compliance: FM approved for use as a safety limit switch in combustion and ventilation systems.
• Reliable Switching: SPDT contact configuration enables seamless integration for both alarm and control functions.

Common Questions

What is the maximum operating pressure for the 8224212046?
This model is designed for low-pressure sensing up to 9" WC; exceeding the rated burst pressure of the diaphragm can lead to calibration drift or component failure.

Can this switch be used for sensing combustible gases?
While commonly used in combustion air applications, its primary function is air differential sensing. Always verify specific media compatibility with the manufacturer’s technical data sheet for your specific installation.

Does this unit come with a manual reset?
No, the 8224212046 is an automatic reset switch, meaning it will reset to its normal state once the pressure differential drops below the set point differential.

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.