Quest 876 High Capacity Dehumidifier

Managing humidity in massive industrial environments where standard dehumidifiers simply can't keep up with the load?

The Quest 876 delivers maximum dehumidification capacity, removing 876 pints per day while maintaining 6.6 pints per kilowatt hour efficiency at standard conditions, making it ideal for the largest commercial and industrial applications.

Designed for 220-240V electrical systems, this powerhouse unit provides unmatched moisture removal capacity for facilities requiring continuous, high-volume dehumidification.

The unit's patented M-CoRR multi-coil refrigeration technology recycles excess heat to maximize efficiency while reducing heat output into your space. With 1,850 CFM airflow, it provides rapid air processing and moisture removal across large areas, ensuring consistent environmental control.

Built for industrial-grade performance, the Quest 876 operates effectively across the industry's widest temperature range from 56°F to 95°F, maintaining reliable operation in demanding environments. The robust construction includes integrated handles and hanging points for flexible installation options.

Engineered and assembled in Madison, Wisconsin, this unit features MERV 13 filtration, R410A refrigerant for reliable performance, and meets California Title 24 compliance standards for ducted installations in commercial applications.

Product Highlights

876 pints/day capacity with 6.6 pints/kWh efficiency for maximum moisture removal
Patented M-CoRR technology reduces heat output while maximizing performance
1,850 CFM airflow for rapid air processing in large spaces
Widest operating range in the industry: 56°F to 95°F
Industrial-grade construction with integrated handles and hanging points

Quest 876 Features

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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.

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Industrial Grade Construction

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

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Wide Operating Range

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

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Flexible Installation

Overhead or ground placement with integrated handles and hanging points.

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External Control Ready

Hardwired design with external control compatibility for integrated system management.

Quest 876 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

Quest 876 High-Capacity Series Specifications

CFM	1850 @ 0.0” WG
Power (Watts):	5500
Supply voltage:	220–240 VAC 1 Phase - 60 Hz
Current Draw (Amps):	24.7A
Rated Current Draw (Amps): (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 (Liters/Day): Efficiency (Pints/Kwh)	876 Pints/Day 6.6 Pints/kWh
Air Filter (MERV-13):	Size: 18” x 20” x 2”
Power Cord:	No Cord
Electrical Knockout Size	3/4” (1.094” opening)
Drain Connection:	3/4 Threaded NPT
Refrigerant Type:	R410A
Refrigerant Amount:	6lbs 4oz
Warranty: (years)	5
Dimensions	28.9" W x 34.1" H x 44.8" L

Quest 876 Installation Options

The Quest 876 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.

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.

P-Trap Requirements

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

Quest 876 High-Capacity Series Manuals

Quest 876 Manual

Quest 876 Specification Sheet

Quest 876 High-Capacity Series Warranty

Quest offers a 5-year warranty. This does not include user error or operator abuse.

Quest 876 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. With 1,850 CFM airflow and 6.6 pints/kWh efficiency, it's designed for the largest commercial and industrial applications where multiple smaller units would be required.

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. The 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 hardwired connection to 220-240V, 1 phase, 60 Hz electrical supply with 24.7 amp capacity. Professional electrical installation is required due to the hardwired design and high amperage requirements. No plug-in option is 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 876 pints/day capacity, helping to minimize additional cooling loads in large facilities.

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 environment), proper P-trap maintenance for condensate drainage, and periodic inspection of the external control connections. The unit features auto-restart functionality to minimize downtime after power outages.

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 and safe installation.

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 compliance ensures the unit meets stringent energy efficiency standards for commercial installations in California and other jurisdictions with similar requirements.

What exactly 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, refrigeration system, and major mechanical components. The warranty requires proper installation by qualified technicians and operation within specified parameters.

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Quest 876 Dehumidifier — 876 Pints/Day