- Quest 506 208/230V Dehumidifier Unit
- MERV 13 Air Filter (18" x 20" x 2")
- Power Cord with NEMA 6-20P Plug (6')
- Installation Manual
- Digital Control Interface
Quest 506 208/230V High Capacity Dehumidifier
- Removes 500 pints of water per day
- Patented M-CoRR multi-coil refrigeration technology
- Runs on 208/230V with 9.9 amp draw
- View More Details
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Commercial Rebate Program
Licensed operations may qualify for up to a 60% rebate on qualifying equipment.
Who This Is For
- Facilities struggling to maintain stable humidity levels across multiple zones without overwhelming current amperage
- Operations that need a high-capacity moisture removal solution but cannot afford to run extra HVAC cooling loads
What We Found
- The digital interface provides instant visual confirmation of moisture levels so you can adjust setpoints on the fly.
- The hanging mount system saves floor space by moving units out of the primary workflow area.
What Users Say
- Operators who switched to this model say they stopped blowing breakers during peak transpiration cycles.
- Facility managers report lower monthly utility costs after replacing older units with this more efficient model.
Quest 506 208/230V High Capacity Dehumidifier
Are excessive humidity and rising energy costs compromising your large-scale operation? The Quest 506 208/230V Dehumidifier delivers the ultimate solution, combining massive moisture removal with unparalleled energy efficiency. This unit is one of the most powerful industrial dehumidifiers in its class, engineered to tackle the toughest environmental challenges.
The Quest 506 removes an incredible 500 pints of water per day while achieving an exceptional 9.2 pints per kilowatt-hour (Pints/kWh) efficiency rating. Its patented M-CoRR multi-coil refrigeration technology recycles excess heat to maximize performance, significantly reducing the heat output into your space. Operating at just 9.9 amps at 230V, it provides more dehumidification capacity per amp than competitors, freeing up valuable electrical capacity for other equipment. The entire Quest lineup is known for this level of performance, with smaller options like the Quest 335 available for different needs.
Built for versatility, the Quest 506 operates effectively across the industry's widest temperature range (56°F to 95°F), ensuring consistent performance. Engineered and assembled in Madison, Wisconsin, this unit features superior MERV 13 filtration, environmentally-conscious R454B refrigerant, and meets California Title 24 compliance standards. For operations with even greater demands, the Quest 876 offers a significant step up in capacity.
What's Included
Features
M-CoRR Technology
Patented multi-coil design recycles heat for maximum efficiency and reduced space heating.
Flexible Voltage
Operates on 208V or 230V with low amp draw for versatile installation options.
Digital Controls
Onboard controls with self-diagnostics, filter alerts, and low-voltage remote capability.
Wide Operating Range
Functions effectively from 56°F to 95°F across varying humidity conditions.
Versatile Installation
Compact design allows freestanding or overhead mounting with integrated hanging points.
Eco-Friendly Refrigerant
R454B refrigerant provides 78% lower global warming potential than R410A.
Installation Options
The Quest 506 208/230V offers two primary installation configurations to accommodate your space requirements:

Freestanding Installation
Place the unit directly on the floor with integrated handles for easy positioning and movement during maintenance.

Overhead Installation
Mount using 3/8" threaded rod through integrated hanging points for space-saving overhead placement with remote control capability.

P-Trap Requirements
Both configurations require proper P-trap installation for condensate drainage through the 3/4" threaded NPT drain port.
Specifications
| Specification | Value |
|---|---|
| Water Removal (80°F | 60% RH) | 500 Pints/Day |
| Efficiency (80°F | 60% RH) | 9.2 Pints/kWh |
| Supply Voltage | 208V-230V |
| Current Draw | 9.9 Amps (230V) | 10.9 Amps (208V) |
| Power | 2,250 Watts |
| Operating Temperature | 56°F Min – 95°F Max |
| Unit Dimensions | 44.8" L x 29.0" W x 27.4" H |
| Unit Weight | 275 lbs |
| CFM | 1,150 @ 0.0" WG |
| Air Filter MERV Rating | MERV 13 |
| Refrigerant Type | R454B |
| Drain Port Connection | 3/4" Threaded NPT |
| Part Number | 4046300 |
Support & Manuals
Warranty
The Quest 506 208/230V is backed by a comprehensive 5-year limited warranty, providing long-term protection and peace of mind for your investment in professional-grade dehumidification equipment.
FAQs
The patented M-CoRR (Multi-Coil Refrigeration Recovery) technology uses multiple coils to recycle excess heat that would normally be wasted. This recovered heat pre-warms the incoming air, reducing the energy needed for the dehumidification process while simultaneously reducing heat output into your space by up to 30% compared to traditional designs.
The Quest 506 is designed for large commercial and industrial applications. With 500 pints/day capacity and 1,150 CFM airflow, it's ideal for spaces up to 10,000+ cubic feet. Its compact footprint allows both floor and overhead installation. For a detailed comparison, check out our complete guide to Quest dehumidifiers to find the perfect model for your needs.
Daily maintenance is minimal. The onboard digital controls provide filter change notifications, and the MERV 13 filter typically requires replacement every 3-6 months depending on environmental conditions. The unit also features auto-restart functionality and self-diagnostics to minimize manual intervention.
The 208/230V flexibility allows installation on either voltage system without equipment modifications. This reduces installation complexity and costs while providing lower amp draw (9.9A at 230V, 10.9A at 208V) compared to previous generations, freeing up electrical capacity for other equipment.
The Quest 506 features a low-voltage terminal block that connects to optional remote controllers. This allows you to adjust settings, monitor performance, and receive alerts from ground level when the unit is mounted overhead, providing convenient access for daily operations.
R454B refrigerant has a 78% lower Global Warming Potential (GWP) compared to the commonly used R410A, significantly reducing your operation's environmental impact. This newer refrigerant maintains high performance while meeting stringent environmental standards.
The 5-year limited warranty covers manufacturing defects and component failures under normal operating conditions. This includes the compressor, coils, and major mechanical components. The warranty requires proper installation and maintenance as outlined in the user manual. Consumable items like filters are not covered.
Questions About This Product?
Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)
Why Trimleaf
Equipping home growers, craft producers, and commercial operations across North America since 2016.