- 1x Quest 335 208/230V Dehumidifier
- 4x Leveling Feet
- 1x Drain Hose
- 1x Drain Adapter (3/4" NPT PVC to 5/8" Hose Barb)
- 4x Rivnut Plugs
Quest 335 208/230V High Efficiency Dehumidifier — 350 Pints/Day
starting from 0% interest financing from
/mo.
- Extracts 345 pints of moisture per day
- M-CoRR multi-coil technology for high energy efficiency
- Runs on 208 or 230V single-phase power
- 5-year limited warranty
- View More Details
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REBATE PROGRAM
Commercial Rebate Program
Licensed operations may qualify for up to a 60% rebate on qualifying equipment.
Who This Is For
- Facility managers overseeing high moisture environments who need to maintain strict humidity levels to prevent rot.
- Operations currently facing inconsistent humidity levels that compromise the quality of stored plant material.
What We Found
- The filter compensation technology noticeably maintains stable airflow even when the filter starts to load with dust.
- We recommend the overhead mounting kit for teams struggling to keep floor space clear in crowded facility aisles.
What Users Say
- Facilities that switched to this model report consistent drying times that eliminated their bottlenecks between harvests.
- Owners who installed these units say they stopped worrying about moisture spikes damaging sensitive biomass.
Quest 335 208/230V High Efficiency Dehumidifier — 350 Pints/Day
Battling heavy moisture loads in a commercial space that demands peak efficiency and precise climate control? The Quest 335 208/230V dehumidifier is the definitive solution, engineered in the USA for the most demanding applications, from indoor agriculture to water treatment facilities. It's the perfect plug-and-play unit for any facility using standard 208/230V single-phase power.
This high-performance unit extracts an incredible 345 pints of moisture per day while setting a new standard for efficiency at 8.0 pints per kWh. Its patented M-CoRR™ multi-coil technology recycles excess heat during operation, dramatically boosting energy savings and reducing the heat output into your space. This makes it one of the most efficient industrial dehumidifiers on the market.
Built for relentless, continuous operation, the Quest 335 thrives in temperatures from 56°F to 95°F. It features industry-leading MERV 13 filtration—up to 65% more effective than standard MERV-8 filters—to capture fine particles and protect your environment. Innovative filter compensation technology automatically adjusts fan speed as filters get dirty, ensuring a consistent 900 CFM airflow without performance drops. For facilities with different capacity needs, Quest also offers models like the smaller Quest 225 or the larger Quest 506.
What's Included
Features
⚡
Patented M-CoRR™ Technology
Multi-coil design recycles heat for 8.0 pints/kWh efficiency and reduced BTU output.
🔌
208/230V Plug-and-Play
Standard single-phase power with a 6-foot cord and NEMA 6-15P plug for easy setup.
🌀
Smart Filter Compensation
Automatically adjusts fan speed to maintain a consistent 900 CFM as filters load.
🌿
Eco-Friendly R454B Refrigerant
Features a 78% lower global warming potential for superior environmental responsibility.
🎛️
Digital Control System
Includes onboard digital controls with seamless external control integration capability.
🏗️
Flexible Installation
Can be placed on the ground or mounted overhead, with integrated handles and auto-restart.
Quest 335 High-Efficiency Series Installation Options
The Quest 335 offers two primary installation configurations to accommodate your space requirements:
Freestanding Unit
Place the unit directly on the floor with integrated handles for positioning and maintenance access.
Overhead Mounting
Mount using 3/8" threaded rod through integrated hanging points to maximize floor space utilization.
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 | 345 Pints/Day |
| Efficiency @ 80°F/60% RH | 8.0 Pints/kWh |
| Supply Voltage | 208–230 VAC, 1 Phase, 60 Hz |
| Current Draw | 8.4A @208V / 7.6A @230V |
| Power Consumption | 1,700 Watts |
| Operating Temperature Range | 56°F Min – 95°F Max |
| Air Flow (CFM) | 900 |
| Unit Dimensions | 32.9″ L x 24.6″ W x 23.7″ H |
| Unit Weight | 215 lb |
| Control Type | Onboard digital controls with low voltage terminal block |
| Air Filter MERV Rating | MERV 13 |
| Air Filter Dimensions | 20″ x 22″ x 2″ |
| Power Cord | 14ga NEMA 6-15P (6′) |
| Refrigerant Type | R454B |
| Refrigerant Amount | 3 lb 8 oz |
| Drain Port Connection | 3/4″ Threaded NPT |
| Fan Type | Variable Speed EC Motor |
| Part Number | 4046200 |
Warranty
The Quest 335 208/230V dehumidifier is backed by a comprehensive 5-year limited warranty. This extensive coverage reflects Quest's confidence in their Madison, Wisconsin-engineered equipment, providing peace of mind for commercial applications requiring reliable, continuous operation.
FAQs
How does the filter compensation technology work?
The Quest 335 features intelligent filter compensation that automatically increases fan speed as the MERV 13 filter becomes clogged. This system monitors static pressure and adjusts the fan to maintain a consistent 900 CFM airflow, ensuring optimal performance throughout the filter's life without manual intervention.
What are the electrical advantages of this 208/230V unit?
The 208/230V configuration offers flexible installation with standard single-phase power. It draws 8.4 amps at 208V or 7.6 amps at 230V, making it compatible with most commercial electrical systems. The unit includes a 6-foot power cord with a NEMA 6-15P plug for simple plug-and-play installation, unlike many other industrial dehumidifiers that require hardwiring.
How does R454B refrigerant benefit sustainability?
The Quest 335 uses R454B refrigerant, which has a 78% lower Global Warming Potential (GWP) compared to traditional refrigerants. This environmentally-conscious choice significantly reduces greenhouse gas emissions while maintaining optimal dehumidification performance.
What makes the Quest 335 ideal for indoor agriculture?
The Quest 335 is engineered for the heavy moisture loads found in indoor agriculture. Key benefits include:
- MERV 13 filtration captures pollen, powdery mildew, and other airborne contaminants.
- M-CoRR™ technology reduces heat output to minimize stress on your cooling system.
- Filter compensation maintains consistent airflow as filters collect organic matter.
- A wide operating range of 56°F to 95°F handles varying grow cycle conditions.
For more details on optimizing your grow room environment, check out our complete guide to Quest dehumidifiers.
How does the Quest 335 208/230V compare to the 277V version?
Both models deliver identical performance (345 pints/day, 8.0 pints/kWh). The key difference is the electrical configuration:
- 208/230V model: Uses standard single-phase power with a plug-and-play cord, compatible with most commercial facilities.
- 277V model: Designed for higher voltage operation, offering a lower amperage draw (6.3A) ideal for facilities with existing 277V infrastructure.
Choose the 208/230V for standard electrical systems or the 277V for specialized commercial installations.
What control options are available?
The Quest 335 provides versatile control options, including an onboard digital interface for standalone operation and a low voltage terminal block for easy integration with external controllers and building management systems. It also features an auto-restart function that returns to its previous settings after a power outage.
Happy To Help
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.)
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