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Quest 506 277V
High Capacity Dehumidifier Series

Model #4046310

@ 80 F | 60% RH

  • Capacity 500 Pints/Day
  • Efficiency 9.2 Pints/kWh
  • Supply Voltage 277V
  • Current Draw 8.2 Amps

Quest 506 Overview

Taking innovation to the next level, we’ve improved on the design of the original Quest 506 277V dehumidifier. This newest generation of the 506 surpasses the Quest 335 as the world’s most energy-efficient dehumidifier on the market, removing 500 pints per day at an impressive 9.2 pints per kilowatt hour (at 80°F, 60% RH).

Just like our original 506 design, the 500-pint capacity makes it one of the most powerful commercial dehumidifiers on the market. The 277V voltage provides a low amp draw, freeing up electricity for other equipment on your breaker. Best of all, these units can be installed on 277V without the additional installation of buck-boost transformers or the associated costs of rewiring.

M-CoRR™ Technology

The impressive energy efficiency is a result of Quest’s patented M-CoRR™ technology. Our unique multi-coil refrigeration design recycles excess heat to provide the highest efficiencies available on the market, while reducing heat (BTU) output into your space.

Onboard Digital Controls

You’ve been asking for it and we delivered: the new generation of Quest 506 now features Quest’s onboard digital controls. This user-friendly control panel allows for easy set points, self-diagnostics, filter change notifications, and dark mode, limiting light pollution. Additionally, the user interface features a low-voltage terminal block to utilize a remote controller, ideal for overhead installations.

Streamlined Design

Built on years of real-world feedback and observation, it was clear that most of these high-capacity units were installed overhead and in tight spaces. That insight drove our engineers to rethink the design, eliminating the feet from the previous generation to create a more compact, space-saving solution. The result? The new Quest 506 277V dehumidifier fits seamlessly into your environment with less height, and without compromising performance.

Better for the environment

The Quest 506 now utilizes the environmentally friendly refrigerant R-454B. It boasts a significantly lower Global Warming Potential (GWP) compared to the previously used R-410A, and the common R-32 found in many competitor machines. Switching to R-454B represents a crucial step forward in reducing the environmental impact of the world, and your business. By choosing a dehumidifier with a lower GWP refrigerant, you’re not only improving air quality and moisture control but also contributing to a more sustainable future. Designed to meet stringent environmental standards while maintaining exceptional performance, our upgraded product line delivers the reliability you trust with the added benefit of reduced greenhouse gas emissions.

Straight from Madison, Wisconsin

Proudly engineered and assembled in Madison, Wisconsin, the Quest 506 277V is designed to deliver unmatched reliability and efficiency. Accordingly, this unit meets California Title 24 energy requirements for both ducted (whole-home) and non-ducted (portable) installations.

Not on 277-volt power?
View the new Quest 506 208/230V

Key Features

An illustration of a classic mercury-based thermometer with a plus and minus sign, depicting high and low temperatures.

Widest operating range

Industry’s best performance at the widest temperature and dew point operating conditions

M-CoRR

PATENTED MULTI-COIL TECHNOLOGY

Achieves highest efficiencies
available in the market

green power button icon in the shape of a hexagon

ONBOARD DIGITAL CONTROLS

Digital control panel for easy and precise setpoints, with a low-voltage terminal block for use with an optional external controller

Features

OVERHEAD OR GROUND PLACEMENT

Built to fit what works for your space

WIDEST OPERATING RANGE

Of temperature and relative humidity

UL RATED AND ETL LISTED

The highest safety standard

INTEGRATED HANDLES & HANGING POINTS

For easier movement and installation

LONG POWER CORD

For extended reach

MERV 13 FILTRATION

Superior filtration removes more harmful contaminants from the air such as dust, pollen and mold as well as bacteria and some viruses

ENVIRONMENTALLY-CONCIOUS REFRIGERANT

Reducing greenhouse gas emissions, R454B boasts a 78% lower GWP

INDUSTRY’S LOWEST AMP DRAW

More efficient units have less heat output and free up electricity for other equipment

Specifications

@ 80 F | 60% RH

Water Removal

500 Pints/Day

Efficiency

9.2 Pints/kWh

Energy Factor

4.4 Liters/kWh

Current Draw

8.2 Amps

Power

2,250 Watts

BTU (Total)

30,500

BTU (Heat of Condensation)

22,800

BTU (Motor Load)

7,700

@ 75 F | 50% RH

Water Removal

320 Pints/Day

Efficiency

6.8 Pints/kWh

Energy Factor

3.2 Liters/kWh

Current Draw

7.9 Amps

California title 24 compliant

Non-Ducted Energy Factor

6.7 Pints/kWh @ 65 F | 60% RH

Ducted Energy Factor

7.9 Pints/kWh @ 73 F | 60% RH

Part Number

4046310

Dehumidifier Type

Refrigerant Dehumidifier

CFM

1,150 @ 0.0″ WG

Operating Temperature

56 F Min–95 F Max

Supply Voltage

277V

Unit Dimensions

44.8″ L x 28.9″ W x 27.4″ H

Unit Weight

275

Control Type

Onboard Digital Controls with Low Voltage Terminal Block

Air Filter MERV Rating

MERV 13

Air Filter Dimensions

18″ x 20″ x 2″

Power Cord

NEMA L7-20P

Refrigerant Type

R454B

Refrigerant Amount

3 lb 14 oz

Drain Port Connection

3/4″ Threaded NPT

Warranty

5 Year Limited

Installation Options

Freestanding dehumidifier

Freestanding unit

Overhead dehumidifier

Can be mounted overhead with use of 3/8″ Threaded Rod

Proper P-trap

P-Trap Requirements

Sizing & Selection

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