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Today's Hours 8am - 11pm estThe Quest 506 High-Capacity Dehumidifier – 277V (Model: 4046310) is an ultra-high-performance commercial dehumidification system designed for large-scale industrial, agricultural, and controlled-environment applications. Built for maximum moisture removal efficiency, it is engineered to maintain strict humidity control in expansive spaces where consistent environmental stability is critical. Operating on 277V power, the Quest 506 delivers extreme dehumidification capacity while maintaining low amperage draw for its class. It uses advanced multi-coil refrigeration technology and R454B refrigerant to improve efficiency, reduce energy consumption, and minimize heat output into the surrounding environment.
With a capacity of up to 500 pints per day under standard conditions, this unit is one of the most powerful single-phase commercial dehumidifiers available. It is commonly used in large facilities such as industrial warehouses, indoor agriculture operations, restoration projects, and other high-moisture environments requiring continuous operation.
The Quest 506 High-Efficiency Dehumidifier features simple and convenient control options for efficient moisture management. It includes an integrated digital onboard control interface for easy adjustment of humidity settings and operating modes. The unit is also compatible with external control devices such as remote humidistats and condensate pump safety switches for added installation flexibility.
The Quest 506 is backed by a dependable 5-Year Limited Warranty for long-term reliability and peace of mind. The warranty includes 1 year of coverage on parts and labor, along with extended coverage on the sealed refrigerant system components from years 2 through 5. Refer to official Quest documentation or an authorized dealer for complete warranty terms.
Built to handle extreme moisture loads, the Quest 506 277V is capable of removing up to 506 pints of moisture per day, making it one of the most powerful dehumidifiers available in the Quest commercial product lineup. At the core of the Quest 506 277V is Quest’s patented M-CoRR® multi-coil refrigeration technology, engineered to maximize moisture removal while minimizing energy consumption. This advanced system delivers industry-leading efficiency and reliable performance across a wide range of operating conditions, helping facilities reduce operational costs while maintaining consistent environmental control. The Quest 506 277V utilizes the more environmentally friendly R454B refrigerant, helping reduce environmental impact while maintaining outstanding dehumidification performance. The Quest 506 277V also enhances indoor air quality through integrated MERV-13 filtration, which helps capture airborne particles such as dust, pollen, mold spores, and other contaminants before air is recirculated throughout the environment.




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