Quest 746 480V Industrial Dehumidifier — 746 Pints/Day

Price:

🍃 Earn 12,1000 points for shopping and get $129.99 off your next order. Join Harvest Club for free

To calculate 10 percent of a number, simply divide it by 10 or move the decimal point one place to the left. For example, 10 percent of 230 is 230 divided by 10, or 23.
pricePoints: 12999.95
12,1000
2
percentage: $129.99
rt:

🍃 Earn # points for shopping and get $129.99 off your next order. Join Harvest Club for free

MODEL: 4046320
  • Free shipping over $50

  • We price match!

  • Inquire for bulk pricing

  • Expert help +1 (360) 800-5535

Quest 746 480V Industrial Dehumidifier — 746 Pints/Day

Looking for industrial-grade humidity control that won't overwhelm your electrical system?

The Quest 746 480V dehumidifier delivers exceptional moisture removal capacity while operating at maximum energy efficiency for large-scale commercial applications.

Perfect for agriculture facilities, manufacturing plants, warehouses, and controlled environment applications requiring precise humidity management at scale.

This commercial-grade unit removes up to 746 pints of moisture per day while achieving an impressive 7.3 pints per kWh efficiency rating. The patented M-CoRR™ multi-coil technology reuses energy during the dehumidification process, making it the most energy-efficient 480-volt dehumidifier available on the market.

Engineered for continuous operation in demanding environments, the Quest 746 operates effectively across a wide temperature range from 56°F to 95°F with integrated MERV 13 filtration that removes dust, pollen, mold, bacteria, and some viruses from processed air.

Built with commercial-grade components and assembled in Madison, Wisconsin, this unit features robust construction designed for overhead or ground placement flexibility. The 480V three-phase power configuration draws only 6.5 amps, freeing up valuable electrical panel space for other critical equipment.

Product Highlights

  • 746 pints per day water removal capacity at 80°F/60% RH conditions
  • 7.3 pints/kWh industry-leading energy efficiency with M-CoRR™ technology
  • 480V three-phase power with only 6.5 amp draw for electrical panel optimization
  • MERV 13 filtration removes harmful contaminants including bacteria and viruses
  • 5-year warranty with Madison, Wisconsin engineering and assembly

Quest 746 Features

Patented M-CoRR™ Technology

Multi-coil design reuses energy for industry-leading 7.3 pints/kWh efficiency

🔌
Low Amperage Draw

480V operation requires only 6.5 amps, freeing electrical panel space

🏭
Commercial Grade Construction

UL rated, ETL listed with integrated handles for flexible installation

🌡️
Wide Operating Range

Functions effectively from 56°F to 95°F across varying humidity levels

🌀
MERV 13 Filtration

Superior air cleaning removes dust, pollen, mold, bacteria, and viruses

🔄
Auto Restart Function

Automatically returns to previous settings after power outages

Quest 746 California Title 24 Compliance

The Quest 746 480V dehumidifier meets California Title 24 energy standards for both ducted (whole-home) and non-ducted (portable) installations. This compliance ensures the unit meets strict energy efficiency requirements for commercial applications in California and other jurisdictions with similar standards.

  • Non-Ducted Energy Factor: 6.3 Pints/kWh @ 65°F | 60% RH
  • Ducted Energy Factor: 7.1 Pints/kWh @ 73°F | 60% RH

Quest 746 Specifications

Specification Value
Water Removal @ 80°F/60% RH 746 Pints/Day
Efficiency @ 80°F/60% RH 7.3 Pints/kWh
Supply Voltage 480V – 3 Phase
Current Draw 6.5 Amps
Power Consumption 4,266 Watts
Operating Temperature Range 56°F Min – 95°F Max
Air Flow (CFM) 1,750
Unit Dimensions 44.8″ L x 28.9″ W x 34.1″ H
Unit Weight 340 lb
Air Filter MERV Rating MERV 13
Refrigerant Type R410A
Drain Port Connection 3/4″ Threaded NPT
Part Number 4037610

Quest 746 Installation Options

The Quest 746 offers two primary installation configurations to accommodate your space requirements:

Quest 746 Freestanding Unit
Freestanding Unit

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

Quest 746 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 746 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 746 Warranty

The Quest 746 480V dehumidifier is backed by a comprehensive 5-year 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 746 FAQs

How does Quest's M-CoRR™ technology make the 746 more efficient than other dehumidifiers? +

The patented M-CoRR™ (Multi-Coil Refrigerant Recovery) technology uses a multi-coil design that captures and reuses energy normally lost during the dehumidification process. This allows the Quest 746 to achieve 7.3 pints per kWh efficiency, making it the most energy-efficient 480-volt dehumidifier available. The technology reduces overall energy consumption while maintaining maximum moisture removal capacity.

Is the Quest 746 suitable for my facility size and application? +

The Quest 746 is designed for large-scale commercial applications requiring high-capacity moisture removal. With 746 pints per day capacity and 1,750 CFM airflow, it's ideal for:

  • Agriculture facilities and controlled environment agriculture
  • Manufacturing plants and industrial facilities
  • Large warehouses and distribution centers
  • Food processing and storage facilities
  • Any application requiring precise humidity control in spaces over 10,000 square feet
What are the daily maintenance and operational requirements for the Quest 746? +

The Quest 746 requires minimal daily maintenance due to its commercial-grade construction. Key operational points include:

  • Regular MERV 13 filter inspection and replacement (18″ x 20″ x 2″ filters)
  • Monitoring of condensate drainage through the 3/4″ NPT drain port
  • Periodic coil cleaning based on environmental conditions
  • The unit features auto-restart functionality, automatically returning to previous settings after power outages
What installation flexibility does the Quest 746 offer? +

The Quest 746 provides exceptional installation flexibility with both overhead and ground placement options. The unit includes integrated handles and hanging points for easier movement and installation. At 340 pounds with dimensions of 44.8″ L x 28.9″ W x 34.1″ H, it's built for permanent installation in commercial settings and requires hardwire electrical connection for 480V three-phase power.

How does the 480V configuration benefit my electrical system? +

The 480V three-phase configuration offers significant electrical advantages by drawing only 6.5 amps compared to higher amperage requirements of lower voltage units with similar capacity. This lower amperage draw frees up valuable space on your electrical panel for other critical equipment and reduces electrical infrastructure costs while delivering 4,266 watts of dehumidification power.

What does the 5-year warranty cover for the Quest 746? +

The Quest 746 includes a comprehensive 5-year manufacturer warranty covering defects in materials and workmanship. As the unit is engineered and assembled in Madison, Wisconsin, Quest provides direct warranty support and service. The warranty reflects the commercial-grade construction and UL/ETL safety certifications, ensuring reliable operation in demanding commercial environments.

Does the Quest 746 require external controls, and what control options are available? +

Yes, the Quest 746 requires external controls for operation, allowing integration with building management systems or standalone humidity controllers. This design provides flexibility for complex commercial applications where the dehumidifier needs to interface with other HVAC equipment, sensors, or automated control systems for precise environmental management.

 

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

Read More

Customer Reviews

Be the first to write a review
0%
(0)
0%
(0)
0%
(0)
0%
(0)
0%
(0)

Search