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Quest 876 Dehumidifier — 876 Pints/Day

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Quest 876 Dehumidifier — 876 Pints/Day

Are you battling extreme humidity in a massive industrial or commercial space where standard dehumidifiers simply can't keep up? The Quest 876 is engineered to solve that exact problem, delivering maximum moisture removal for the largest and most demanding environments. This powerhouse removes an incredible 876 pints of water per day while operating at a class-leading efficiency of 6.6 pints per kilowatt-hour, making it a top choice among high-capacity industrial dehumidifiers.

Designed for robust 220-240V systems, the Quest 876 features patented M-CoRR multi-coil refrigeration technology. This innovative system recycles excess heat to boost efficiency, significantly reducing the heat load on your cooling systems. With a powerful 1,850 CFM of airflow, it rapidly processes huge volumes of air to ensure consistent, uniform environmental control. While it stands as the pinnacle of the Quest lineup, smaller yet powerful options like the Quest 506 are also available for different-sized operations.

Built for relentless performance, the Quest 876 operates reliably across the industry's widest temperature range (56°F to 95°F). Engineered and assembled in Madison, Wisconsin, this unit is constructed for durability and includes MERV 13 filtration to capture airborne particles. Its performance and efficiency meet California Title 24 compliance standards for ducted installations, solidifying its place as a premier solution for serious climate control challenges.

What's Included

  • Quest 876 Dehumidifier Unit
  • MERV 13 Air Filter (18" x 20" x 2")
  • Installation Manual
  • External Control Interface Specifications
  • Mounting Hardware Information

Features

M-CoRR Technology

Patented multi-coil design recycles heat for maximum efficiency and reduced space heating.

💨
High Airflow Capacity

1,850 CFM airflow processes large volumes of air for rapid moisture removal.

🏭
Industrial Grade Construction

Built for continuous operation with a robust 350 lb construction and a 5-year warranty.

🌡️
Wide Operating Range

Functions effectively from 56°F to 95°F across varying humidity conditions.

🏗️
Flexible Installation

Overhead or ground placement with integrated handles and hanging points.

🔧
External Control Ready

Hardwired design with external control compatibility for integrated system management.

Installation Options

The Quest 876 offers two primary installation configurations to accommodate your space requirements:

Quest Quest 876 Dehumidifier — 876 Pints/Day freestanding installation
Freestanding Unit

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

Quest Quest 876 Dehumidifier — 876 Pints/Day overhead mounting option
Overhead Mounting

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

Quest Quest 876 Dehumidifier — 876 Pints/Day P-Trap diagram
P-Trap Requirements

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

Specifications

Specification Value
CFM 1850 @ 0.0” WG
Power (Watts) 5500W
Supply Voltage 220–240 VAC 1 Phase - 60 Hz
Current Draw 24.7A
Rated Current Draw (40°C 36%) 34.6A
Minimum Circuit Ampacity (MCA) 42.5A
Maximum Overcurrent Protection (MOP) 70A
Recommended Breaker Size 45A
Energy Factor 3.1 L/kWh
Operating Temp 56°F Min – 95°F Max
Water Removal 876 Pints/Day
Efficiency 6.6 Pints/kWh
Air Filter (MERV-13) 18” x 20” x 2”
Power Cord Not Included (Hardwired)
Electrical Knockout Size 3/4” (1.094” opening)
Drain Connection 3/4” Threaded NPT
Refrigerant Type R410A
Refrigerant Amount 6 lbs 4 oz
Dimensions (W x H x L) 28.9" x 34.1" x 44.8"

Warranty

Quest offers a 5-year limited warranty covering manufacturing defects and component failures under normal operating conditions. This warranty requires proper installation by a qualified technician and does not cover user error or operator abuse.

FAQs

How does the Quest 876's capacity compare to other industrial dehumidifiers?+

The Quest 876 removes 876 pints per day, making it one of the highest capacity units available. Its performance is designed for the largest commercial applications where multiple smaller units, such as the Quest 225, would otherwise be required to achieve the same result.

What external control systems are compatible with the Quest 876?+

The Quest 876 is designed to work with various external control systems, including building automation systems (BAS), standalone humidity controllers, and integrated climate control systems. Its hardwired design allows for professional integration into existing facility management systems for precise humidity control.

What are the electrical requirements for Quest 876 installation?+

The Quest 876 requires a hardwired connection to a 220-240V, 1-phase, 60 Hz electrical supply with a 24.7 amp capacity. Due to the high amperage and hardwired design, professional electrical installation is required. A plug-in option is not available.

How does the M-CoRR technology reduce heat output in large spaces?+

The patented M-CoRR technology recycles excess heat through multiple coils instead of releasing it into your space. This reduces BTU output by up to 30% compared to traditional designs while maintaining its 876 PPD capacity, helping to minimize additional cooling loads.

What maintenance is required for the Quest 876 in continuous operation?+

The Quest 876 requires regular MERV 13 filter changes (every 3-6 months, depending on the environment), proper P-trap maintenance for condensate drainage, and periodic inspection of control connections. For more details, see our complete guide to Quest dehumidifiers.

Is overhead installation recommended for the Quest 876's weight and size?+

Yes, the Quest 876 is designed for overhead installation despite its 350 lb weight. The integrated hanging points and 3/8" threaded rod mounting system provide secure overhead placement. Professional installation is required to ensure proper structural support.

How does the Quest 876 meet California Title 24 requirements?+

The Quest 876 meets California Title 24 ducted energy factor requirements with 6.2 pints/kWh at 73°F | 60% RH. This ensures the unit meets stringent energy efficiency standards for commercial installations in California and other jurisdictions with similar requirements.

What is covered under the Quest 876's 5-year warranty?+

The 5-year limited warranty covers manufacturing defects and component failures under normal operating conditions, including the compressor, coils, and refrigeration system. The warranty requires proper installation by qualified technicians and operation within specified parameters.

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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