Quest 335 208/230V High Efficiency Dehumidifier — 350 Pints/Day

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Quest 335 208/230V High Efficiency Dehumidifier —  350 Pints/Day

Dealing with heavy moisture loads in commercial spaces that require maximum efficiency and air quality control?

The Quest 335 208/230V dehumidifier is engineered specifically for commercial applications facing demanding moisture challenges, from indoor agriculture to water treatment facilities.

Perfect for facilities requiring standard 208/230V single-phase power with plug-and-play installation, advanced air filtration, and consistent environmental control.

This high-performance unit removes up to 345 pints of moisture per day while achieving an impressive 8.0 pints per kWh efficiency rating. The patented M-CoRR™ multi-coil technology recycles excess heat during dehumidification, providing market-leading efficiency while reducing heat output into your space by up to 5,800 BTUs from motor load.

Engineered for reliable continuous operation, the Quest 335 operates effectively across temperatures from 56°F to 95°F with industry-leading MERV 13 filtration that is 20% more effective than MERV-11 and 65% more effective than MERV-8 filters. The innovative filter compensation technology automatically increases fan speed as filters become clogged, maintaining consistent 900 CFM airflow without performance degradation.

Built with commercial-grade components and assembled in Madison, Wisconsin, this plug-and-play unit features digital controls with external control options and environmentally-conscious R454B refrigerant with 78% lower global warming potential. The unit draws 8.4 amps at 208V or 7.6 amps at 230V, providing installation flexibility for various electrical configurations.

Product Highlights

  • 345 pints per day water removal capacity with 8.0 pints/kWh efficiency
  • MERV 13 filtration with filter compensation technology for consistent airflow
  • M-CoRR™ technology reduces heat output while maximizing energy efficiency
  • 208/230V single-phase power with 6-foot plug-and-play cord
  • R454B eco-friendly refrigerant with 78% lower global warming potential

Quest 335 208/230V 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 6-foot cord and NEMA 6-15P plug

🌀
Smart Filter Compensation

Automatically adjusts fan speed to maintain 900 CFM as filters load

🌿
Eco-Friendly R454B Refrigerant

78% lower global warming potential for environmental responsibility

🎛️
Digital Control System

Onboard digital controls with external control integration capability

🏗️
Flexible Installation

Overhead or ground placement with integrated handles and auto-restart

 

What Is Included in the Quest 335 High-Efficiency Series?

  • 1x - 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 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

 

Quest 335 High-Efficiency Series Installation Options

The Quest 335 277V offers two primary installation configurations to accommodate your space requirements:

Quest 335 277V Freestanding Unit
Freestanding Unit

Place the unit directly on the floor with integrated handles for positioning and maintenance access.

Quest 335 277V Can be Mounted Overhead with Use of 3/8″ Threaded Rod
Can be Mounted Overhead with Use of 3/8″ Threaded Rod

Mount using 3/8" threaded rod through integrated hanging points to maximize floor space utilization.

Quest 335 277V P-Trap Requirements
P-Trap Requirements

Both configurations require proper P-trap installation for condensate drainage through the 3/4" threaded NPT drain port.


Quest 335 208/230V 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.

Quest 335 208/230V FAQs

How does the Quest 335 208/230V's filter compensation technology work? +

The Quest 335 208/230V features intelligent filter compensation technology that automatically increases fan speed as the MERV 13 filter becomes clogged with contaminants. This system monitors static pressure changes and adjusts fan speed to maintain consistent 900 CFM airflow throughout the filter's life cycle, ensuring optimal performance without manual intervention.

What are the electrical advantages of the Quest 335 208/230V configuration? +

The Quest 335 208/230V offers flexible electrical 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 NEMA 6-15P plug for plug-and-play installation, eliminating the need for hardwired connections required by higher voltage models.

How does the R454B refrigerant benefit environmental sustainability? +

The Quest 335 208/230V uses R454B refrigerant, which boasts a 78% lower Global Warming Potential (GWP) compared to traditional refrigerants. This environmentally-conscious choice reduces greenhouse gas emissions while maintaining optimal dehumidification performance. The unit contains 3 lb 8 oz of R454B refrigerant, providing reliable operation with reduced environmental impact.

What makes the Quest 335 208/230V ideal for indoor agriculture applications? +

The Quest 335 208/230V is specifically engineered for commercial spaces facing heavy moisture loads like indoor agriculture. Key benefits include:

  • MERV 13 filtration captures pollen, powdery mildew, and other agricultural contaminants
  • M-CoRR™ technology reduces heat output to minimize cooling system load
  • Filter compensation technology maintains consistent airflow as filters collect organic matter
  • Wide operating range from 56°F to 95°F handles varying environmental conditions
What control options are available with the Quest 335 208/230V? +

The Quest 335 208/230V provides versatile control options for various commercial applications:

  • Onboard digital controls with intuitive interface for standalone operation
  • Low voltage terminal block for integration with building management systems
  • External control capability for custom automation setups
  • Auto-restart function automatically returns to previous settings after power outages
How does the Quest 335 208/230V reduce operating costs? +

The Quest 335 208/230V delivers significant cost savings through multiple mechanisms:

  • 8.0 pints/kWh efficiency minimizes electricity consumption
  • Reduced heat output (only 5,800 BTUs motor load) lowers cooling costs
  • Consistent environmental control prevents product loss and quality issues
  • Filter compensation technology extends filter life and maintains efficiency

These combined benefits make the Quest 335 208/230V one of the most cost-effective dehumidification solutions available.

What installation flexibility does the Quest 335 208/230V offer? +

The Quest 335 208/230V provides exceptional installation flexibility with overhead or ground placement options. The unit includes integrated handles for easy positioning and movement. At 215 pounds with compact dimensions (32.9″ L x 24.6″ W x 23.7″ H), it fits into most commercial spaces. The plug-and-play design with 6-foot power cord eliminates complex electrical installation requirements.

How does the Quest 335 208/230V compare to the 277V version? +

Both Quest 335 models deliver identical performance (345 pints/day, 8.0 pints/kWh) and feature the same M-CoRR™ technology. The key differences are electrical configuration and installation:

  • 208/230V model: Standard single-phase power, plug-and-play installation, compatible with most commercial facilities
  • 277V model: Higher voltage operation, lower amperage draw, ideal for facilities with existing 277V lighting infrastructure
  • Current draw: 8.4A@208V/7.6A@230V vs 6.3A@277V
  • Power cord: NEMA 6-15P vs NEMA L7-15P plug configuration

Choose the 208/230V for standard electrical systems or the 277V for specialized commercial installations.

 

Shipping & Returns

Order Processing & Shipping

We currently ship within the United States only. No international shipping is available at this time.

Order Processing:

  • Most orders are processed within 24-48 hours after being placed.
  • Some products may have extended processing times of 7-14 business days or more, which will be clearly indicated on the product page. If your order includes such items, you will receive an email from our team or be contacted directly to confirm the estimated shipping timeframe.

Shipping Times:

We partner with reliable national carriers to deliver your orders. While specific delivery times can vary, here's a general timeframe for each carrier:

  • USPS: Typically delivers between 9:00 AM and 5:00 PM, Monday through Saturday.
  • FedEx: Typically delivers between 8:00 AM and 8:00 PM, Monday through Friday, with some Saturday deliveries.
  • UPS: Typically delivers between 9:00 AM and 7:00 PM, Monday through Friday, with some Saturday deliveries.

Note:

  • These are estimated delivery hours and may vary depending on your location and specific delivery circumstances.
  • For the most accurate delivery information, please refer to the tracking details provided once your order has shipped.

Free Shipping

Free shipping on qualified items to the lower 48 states. Some that are not eligible are stated on their respective product information page. Learn more

Refunds & Returns

Cancellations are accepted within 24 hours of placing an order.
Returns are subject to each manufacturer's return policy. Please look into the return policy of the brand prior to ordering. Learn more

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