- 1x Quest 335 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.
- Removes 345 pints of moisture per day while maintaining 900 CFM
- M-CoRR technology recycles excess heat to reduce the total heat load in your facility
- Single-phase 208/230V power with a NEMA 6-15P plug and a six-foot cord
- 5-year limited warranty
- View More Details
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Commercial & Bulk Purchasing
We support operations & licensed facilities with volume pricing, dedicated account managers, and custom equipment consultation.
Who This Is For
- You are moving to high-voltage gear because your existing 120V circuits are maxed out and struggling with moisture.
- You are switching to overhead units because floor space is at a premium and you need better airflow across your crop.
What We Found
- We tell buyers this is the sweet spot for rooms where the 506 is overkill but the 225 cannot keep up.
- We suggest overhead mounting to reduce the manual labour needed for floor cleaning between harvest cycles.
What Users Say
- Facilities that switched to the 335 saw their energy bills drop due to the 8.0 pints per kWh efficiency rating.
- Operators report cleaner air and fewer crop contaminants after switching to the high-grade MERV 13 filtration.
Quest 335 208/230V High Efficiency Dehumidifier — 350 Pints/Day
Struggling to control extreme moisture levels in your commercial facility? The Quest 335 208/230V dehumidifier is a powerhouse from the Quest lineup engineered for the most demanding environments, from indoor farms to water treatment plants, where standard 208/230V power is available.
This high-performance unit extracts an incredible 345 pints of moisture per day while maintaining an industry-leading efficiency of 8.0 pints per kWh. At its core is the patented M-CoRR™ multi-coil technology, which recycles excess heat to maximize energy efficiency and significantly reduce the heat load in your space. Combined with superior MERV 13 filtration—65% more effective than MERV 8 filters—it ensures your air is not just dry, but clean.
Engineered for reliability, the Quest 335 features innovative filter compensation technology that automatically adjusts fan speed to maintain a consistent 900 CFM airflow as the filter collects contaminants. Built in Madison, Wisconsin, this plug-and-play unit offers digital controls, external control options, and uses eco-friendly R454B refrigerant, making it one of the most efficient commercial dehumidifiers for sale today. For smaller spaces, consider the Quest 225, or for even greater capacity, the 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 constant 900 CFM as the filter loads.
🌿
Eco-Friendly R454B Refrigerant
Features a 78% lower global warming potential for enhanced environmental responsibility.
🎛️
Digital Control System
Includes onboard digital controls with the capability for external control integration.
🏗️
Flexible Installation
Can be placed on the ground or mounted overhead, with integrated handles and auto-restart.
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, reflecting Quest's confidence in the quality and durability of their Madison, Wisconsin engineered and assembled equipment. This extensive warranty coverage provides 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. By monitoring static pressure, it adjusts to maintain a consistent 900 CFM airflow, ensuring optimal performance throughout the filter's lifespan without needing manual adjustments.
What are the electrical advantages of the 208/230V configuration?
This model 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 setup, avoiding the need for 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 delivering top-tier dehumidification performance.
What makes the Quest 335 ideal for indoor agriculture?
The Quest 335 is engineered for the heavy moisture loads in indoor farms. Its MERV 13 filtration captures airborne contaminants like pollen and mildew, while the M-CoRR™ technology reduces heat output, lessening the strain on your cooling systems.
What control options are available?
This unit offers versatile control options, including an onboard digital interface for standalone operation and a low voltage terminal block for integration with external systems. For advanced climate management, it is fully compatible with accessories like the Quest DEH 3000R Climate Controller.
How does the Quest 335 reduce operating costs?
The Quest 335 delivers significant cost savings through its 8.0 pints/kWh efficiency, which minimizes electricity use. It also reduces cooling costs by lowering heat output and helps prevent crop loss from issues like mold.
How does this model compare to the 277V version?
Both models deliver identical performance (345 PPD, 8.0 pints/kWh) and are top-tier models in the full range of Quest dehumidifiers. The key difference is the electrical configuration: this 208/230V model offers plug-and-play convenience for standard commercial power, while the 277V version is designed for facilities with higher voltage infrastructure.
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Questions About This Product?
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