Quest 746 Dehumidifier - 480V

More details about Quest 746 Dehumidifier – 480V

High-Capacity Performance with Industry-Leading Efficiency

Engineered for demanding applications, the Quest 746 removes approximately 730 pints of moisture per day at 80°F / 60% RH, delivering an impressive 8.3 pints per kWh. Operating at higher voltage with lower amp draw, this unit frees up valuable capacity on your electrical panel—helping facilities run more equipment without costly electrical upgrades.

With its reduced overall height, the Quest 746 fits where many industrial dehumidifiers cannot, making it ideal for mechanical rooms, overhead installations, and space-limited facilities. Facility managers benefit from lower operating costs without sacrificing climate control or reliability.

Advanced M-CoRR™ Technology

At the core of the Quest 746 is Quest’s patented M-CoRR™ (Multi-Coil Refrigerant Recovery) Technology. This advanced multi-coil refrigeration system recycles energy during the dehumidification process, delivering the highest efficiencies available in the market while reducing heat (BTUs) released into the space—minimizing cooling demand and total energy consumption.

Now with Integrated Digital Controls

The new generation Quest 746 features an integrated onboard digital control panel for precise, user-friendly operation, including:

• Adjustable RH setpoints in 1% increments
• Filter change and defrost notifications for easier maintenance
• Self-diagnostics to reduce downtime and speed service
• Dark Mode to limit light in sensitive environments
• Low-voltage terminal block for optional external or remote control

Environmentally Responsible Refrigerant

Sustainability is built into the Quest 746. This second-generation model utilizes R-454B refrigerant, offering a significantly lower Global Warming Potential (GWP) than legacy R-410A and commonly used R-32. The result is powerful dehumidification with a reduced environmental footprint—supporting sustainability goals without compromising performance.

Built in the USA. Code-Compliant.

The Quest 746 is engineered and assembled in Madison, Wisconsin, using high-quality components designed for long-term durability. It is backed by a 5-year warranty and meets California Title 24 requirements for ducted (whole-home) installations.

Key Features

• High-Efficiency Performance
  No dehumidifier is more efficient in its class

• Patented Multi-Coil Technology (M-CoRR™)
  Achieves the highest efficiencies available in the market

• Industry’s Lowest Amp Draw
  Reduced heat output and more available power for other equipment

Additional Features

• Overhead or Ground Placement
  Designed to fit what works best for your space

• Widest Operating Range
  Reliable performance across broad temperature and humidity conditions

• UL Rated & ETL Listed
  Meets the highest safety standards

• Integrated Handles & Hanging Points
  Simplifies movement, installation, and servicing

• MERV-13 Filtration
  Removes dust, pollen, mold, bacteria, and some viruses

• Auto Restart
  Automatically resumes prior settings after power outages

• Onboard Digital Controls
  Precise control with optional external integration

• Environmentally Conscious Refrigerant (R-454B)
  78% lower Global Warming Potential (GWP) for reduced emissions

• Assembled in Madison, Wisconsin
  Built to last in demanding environments

 
Ideal Applications

• Agriculture
• Distribution & Logistics
• Energy & Utilities
• Food & Beverage
• Industrial & Manufacturing
• Indoor Self-Storage
• Natural Supplements
• Science & Technology
• Sports & Recreation

Technical Specifications

• Rated at 80°F / 60% RH

• Moisture Removal Capacity:
  730 pints per day

• Energy Efficiency:
  8.3 pints per kWh

• Energy Factor:
  3.9 liters per kWh

• Electrical Current Draw:
  4.9 amps

• Power Consumption:
  3,665 watts

• Total Heat Output:
  45,700 BTU

• Heat of Condensation:
  33,200 BTU

• Motor Heat Load:
  12,500 BTU