Description
Quest 506 High Capacity Dehumidifier – 500 Pints/Day | Available in 208/230V and 277V Models
The Quest 506 is a game-changer in commercial and industrial dehumidification. With a massive 500 pints per day capacity and industry-leading 9.2 pints/kWh efficiency, this model surpasses even the Quest 335, setting the new standard for energy-efficient moisture control. It’s ideal for grow rooms, drying rooms, warehouses, and any space where consistent humidity management is critical.
Backed by Quest’s patented M-CoRR™ multi-coil technology, the 506 captures and reuses heat energy to reduce power consumption while cutting down on added BTUs in your space. Whether you’re on 208/230V or 277V power, this unit delivers maximum performance with minimal amp draw, freeing up room on your electrical panel for other essential equipment.
Key Features
- Removes 500 pints/day at 80°F, 60% RH
- Unmatched efficiency – 9.2 pints/kWh
- M-CoRR™ Technology – multi-coil design boosts efficiency and reduces heat output
- R454B refrigerant – environmentally friendly with 78% lower GWP than R410A
- Onboard digital controls – intuitive panel for set points, diagnostics, and dark mode
- Low-voltage terminal block – ideal for remote/hard-to-reach installations
- Flexible mounting – fits overhead or on the ground
- Integrated handles & hanging points for easier positioning
- Auto-restart after power outage
- MERV 13 air filtration – traps dust, mold spores, and airborne contaminants
- Built in Madison, Wisconsin – proudly engineered and assembled in the USA
- 5-Year Limited Warranty
Voltage Options & Differences
| Feature | 208/230V Model | 277V Model |
|---|---|---|
| Model # | 4046300 | 4046310 |
| Current Draw | 9.9A (230V), 10.9A (208V) | 8.2A |
| Power Cord | NEMA 6-20P | NEMA L7-20P |
| Supply Voltage | 208–230V | 277V |
| Installation Note | Great for flexible installs on standard power | Ideal for commercial setups—no buck-boost needed |
Need 277V compatibility? Go with the 4046310.
Working with standard 208/230V wiring? The 4046300 is your best bet.
Specifications
- Water Removal: 500 PPD (80°F, 60% RH), 320 PPD (75°F, 50% RH)
- Efficiency: 9.2 PPD/kWh (80°F), 6.8 PPD/kWh (75°F)
- CFM: 1,150 @ 0.0″ WG
- Energy Factor: 4.4 L/kWh (80°F), 3.2 L/kWh (75°F)
- Dimensions: 44.8″ L × 28.9″/29.0″ W × 27.4″ H
- Weight: 275 lbs
- Operating Temp Range: 56°F–95°F
- Air Filter: 18″ × 20″ × 2″, MERV 13
- Refrigerant: R454B, 3 lb 14 oz
- Drain Port: ¾” Threaded NPT
- California Title 24 Compliant: Yes (ducted and non-ducted)
Ideal For:
- Large commercial grow operations
- Indoor drying facilities
- Industrial humidity control
- Warehousing and storage
- Any application where high performance + low energy use is key
If you need reliable, energy-efficient humidity control at scale, the Quest 506 High Capacity Dehumidifier delivers unmatched performance. With two voltage options (208/230V and 277V), advanced onboard controls, and ultra-efficient M-CoRR™ technology, this unit is built to meet the demands of commercial cultivation, industrial operations, and other large-scale environments. Whether you’re optimizing a grow room or safeguarding sensitive storage, the Quest 506 offers the power, precision, and flexibility you need—all backed by a trusted name in environmental control.
Shipping Note: This unit ships via freight because of its size and weight. After checkout, we’ll follow up with a custom freight quote. Want to get a shipping estimate before ordering? Just reach out—we’re happy to help.
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