Honeywell T4031A1073 Temperature Controller

The Honeywell T4031A1073 Temperature Controller is a high-performance remote bulb refrigeration thermostat designed for heavy-duty commercial cooling applications. This unit serves as a critical HVAC/R control component for managing temperatures in ducts, tanks, walk-in freezers, and reach-in coolers. Engineered with a liquid-filled 1.5-inch copper sensing bulb and an 8-foot capillary, it ensures rapid thermal response and high accuracy across a broad range of -30?F to 50?F. As a direct replacement for CNT2326, it maintains seamless mechanical and electrical compatibility for rapid field swaps.

Built for industrial durability, the Honeywell T4031A1073 features a reliable 1 SPDT switch configuration, allowing for versatile wiring in either "make on rise" or "break on rise" logic. The 120/240Vac dual-voltage compatibility facilitates installation in various equipment types, supporting contact ratings of up to 8 Amps full load at 120V. Its ambient temperature compensation ensures the controller provides consistent setpoint performance even when the housing is exposed to fluctuating machine room temperatures. With a 3.5-degree fixed differential, this controller prevents excessive compressor short-cycling, extending the life of the refrigeration system.

• Universal Replacement: Specifically engineered as the drop-in replacement for CNT2326, reducing downtime during maintenance.
• Precise Sensing: The 8-foot capillary length and copper bulb allow for remote mounting while maintaining high thermal sensitivity.
• Broad Application Range: Ideal for commercial refrigeration temperature control in food service, laboratory, and industrial cooling.
• Robust Electrical Ratings: Handles 120Vac (8A AFL / 48A ALR) and 240Vac (5.1A AFL / 30.6A ALR) for reliable compressor system control.
• Industrial-Grade Build: Features a maximum operating temperature of 125?F to withstand demanding mechanical room environments.

Is the Honeywell T4031A1073 compatible with Trane or American Standard units?

Yes, since the T4031A1073 is the official direct replacement for CNT2326, it is commonly found in OEM equipment from various manufacturers and offers identical mounting and electrical specs.

Can the sensing bulb be directly immersed in liquids?

The copper bulb is designed for direct immersion in the controlled medium, making it suitable for water tanks or ice bins, provided the medium is non-corrosive to copper.

What is the difference between SPDT and SPST in this application?

This SPDT refrigeration controller provides three terminals, allowing you to choose between normally open or normally closed operation, whereas an SPST would only offer one path. This makes it more flexible for custom cooling or heating logic.

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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.