A high efficiency 480V commercial dehumidifier delivering massive moisture removal lower energy costs and compact installation for demanding controlled environments.

The Quest 746 480V is built for facilities where moisture control is mission-critical and electrical capacity is always under pressure. Engineered with Quest’s patented M CoRR™ multi-coil technology, this commercial dehumidifier reuses energy during operation, delivering extreme moisture removal with industry-leading efficiency. It is designed to outperform traditional industrial units while occupying less space and drawing less amperage.

With ~730 pints per day of moisture removal at 80°F and 60% RH and an efficiency rating of 8.3 pints per kWh, the Quest 746 dramatically lowers operating costs in large scale grow rooms, processing areas, mechanical rooms, and controlled environments. The 480V design frees up panel capacity for lighting and HVAC, while the reduced height allows installation where other high-capacity units simply do not fit.

Features

• M CoRR multi-coil technology reuses energy during dehumidification for maximum efficiency.
• High capacity moisture removal delivers ~730 pints per day for large scale environments.
• 480V low amperage operation reduces electrical load and frees up panel space.
• Compact low-profile design fits in mechanical rooms and tight overhead installations.
• Integrated digital control panel allows precise humidity management with modern diagnostics.
• Smart maintenance alerts include filter change, defrost notifications, and self diagnostics.
• Dark Mode display reduces light output in sensitive environments.
• External control ready with a low-voltage terminal block for automation integration.
• Environmentally responsible refrigerant uses R454B with significantly lower GWP.
• Engineered and assembled in Madison, WI, with a 5-year manufacturer's warranty.

What's Included?

• Quest 746 480V Dehumidifier

Download Resources

• Product Manual
• Spec Sheet