Quest 100 50Hz
International Dehumidifier Series

Model #4046590-XX

@ 26.7 C | 60% RH

  • Capacity 44 Liters/Day
  • Efficiency 3.2 Liters/kWh
  • Supply Voltage 230V, 50 Hz
  • Current Draw 2.5 Amps
Text logo stating "Engineered Assembled Madison Wisconsin" alongside a "Three Year Warranty" badge.

Overview

Powerful moisture control. plug-and-Play design.

The Quest 100 50Hz is engineered for precision dehumidification in tight environments that demand consistent performance. Designed exclusively for 50Hz markets, this compact solution is ideal for small grow rooms, dry rooms, storage units, and other climate-sensitive spaces where every square meter matters.

Featuring patented M‑CoRR Technology, the Quest 100 50Hz is built for performance β€” removing 44 litres of moisture per day (at 26.7Β°C/60% RH) with industry-leading energy efficiency in a footprint that’s 20% smaller than traditional systems. It’s an ideal fit for facilities with limited space.

Unlike traditional dehumidifiers, its internal drainage system eliminates the need for a P-trap, making installation faster and easier. Its compact size and corrosion-resistant base make the Quest 100 ideal for moist commercial and industrial spaces.

With intuitive digital controls, the Quest 100 offers accurate relative humidity management, helpful maintenance alerts, diagnostic insights, and dark mode to reduce light in sensitive zones.

The Quest 100 50Hz is your no-hassle solution for reliable, industrial humidity control.

Engineered for ease. Built to perform.

Engineered and assembled in the USA, Quest products are backed by a reputation for reliability with high quality components.

Not in a 50hz region? This model is also available for 60hz regions.

Key features

Green electric plug icon with a lightning bolt, set against a dark teal hexagonal background.

plug-n-play

No installation needed

Patented M-Corr technology

This Multi-Coil Refrigeration Recovery technology achieves the highest efficiencies available in the market

green power button icon in the shape of a hexagon

onboard dehumidistat

Easy digital controls featuring self-diagnostics
and “Dark Mode” to limit light pollution

Features

COMPACT UNIT

For mobility and a small footprint that won’t interfere with operations

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

WIDEST OPERATING RANGE

Of temperature and relative humidity

AUTO RESTART

Unit automatically defaults to prior settings in the event of a power outage

DIGITAL CONTROL

Digital control interface with external control option

PRECISION CONTROL

Easy-to-use controls deliver precise variable grain depression to meet requirements of any application

OVERHEAD OR GROUND PLACEMENT

Built to fit what works for your space

HIGH EFFICIENCY

No dehumidifier is more efficient

Precise RH Setpoints

Fine-tune relative humidity control in 1% increments

system status Indicators

Visual indicators during defrost, and self-diagnostics helping to simplify service and maintenance

maintenance alerts

Including filter change reminders after 2,000 fan hours

Optional dark mode

Disables all display lights to reduce light pollution in sensitive environments

Fan Mode Selection

Select “Auto” for on-demand circulation or “On” for continuous airflow

external control Capability

Terminal control mode allows for connection via a 24V terminal block, disabling the onboard RH sensor when active

Specifications

@ 26.7 Β°C | 60% RH

Water Removal

44 Liters/Day

Efficiency

6.7 Pints/kWh

Energy Factor

3.2 Liters/kWh

Current Draw

2.5 Amps

Power

540 Watts

BTU (Total)

6,200

BTU (Heat of Condensation)

4,200

BTU (Motor Load)

2,000

@ 23.9 Β°C | 50% RH

Water Removal

29.3 Liters/Day

Efficiency

5.0 Pints/kWh

Energy Factor

2.4 Liters/kWh

Current Draw

2.2 Amps

Part Number

4046590-XX

Dehumidifier Type

Refrigerant Dehumidifier

CFM

280

Operating Temperature

13 Β°C Min–35 Β°C Max

Supply Voltage

230 V

Unit Dimensions

61cm (L) x 40.6cm (W) x 36.8 cm (H)

Unit Weight

27.2 kg

Control Type

Onboard digital controls with low voltage terminal block

Air Filter MERV Rating

MERV 13

Air Filter Dimensions

30.5 x 35.6 x 2.5 cm

Recommended Breaker Size (EU, AU, ZA)

15 Amp

Recommended Breaker Size (UK)

13 Amp

Power Cord

3m FEM IEC 60320-C13

Refrigerant Type

R454b

Refrigerant Amount

17 oz

Drain Port Connection

1.9cm Threaded NPT

Fans

Variable speed EC Motor

Warranty

3 Year Limited

Installation Options

Free-standing dehumidifier

Freestanding dehumidifier

Overhead dehumidifier

Hanging kit available

Condensation on window

Sizing & Selection

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How to properly size your dehumidification equipment (VIDEO)

Getting at how much humidity control you need isn’t the international man of environmental control mystery, like many of us think. In fact, how to properly size your dehumidifiers is relatively straightforward IF you have the necessary data.

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What is relative humidity and why is it important?

Relative humidity measures moisture levels in the air compared to temperature capacity. Understanding this ratio is vital for businesses, as incorrect levels can ruin stored goods, create damaging mold, and threaten worker safety. Learn why proper humidity control is essential for your facility and how to avoid common myths regarding effective moisture management.

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Need Help Sizing?

Our humidity experts are standing by to assist.

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