Quest 335 High-Efficiency Dehumidifier

Description

Quest 335 High-Efficiency Dehumidifier: Engineered for Demanding Commercial Environments

Built with serious growers in mind, the Quest 335 is a powerhouse when it comes to managing humidity in commercial operations and other high-moisture environments. Now updated for even better performance and ease of use, this unit is designed to tackle the intense demands of .

Iits efficiency and adaptability make it a smart choice for storage facilities, large gyms restaurants, schools, retail spaces, multi-unit housing, and even theaters.

Each unit comes equipped with a MERV-13 air filter, designed to capture airborne particles like mold, pollen and powdery mildew. The Quest 335 offers flexible installation—place it overhead or on the floor—and includes a digital control panel with an option for external management. Proudly manufactured in the USA.

Plug Options Available:

• 208–240 V with a NEMA 6-15P plug

• 277 V with a NEMA L7-15P plug

Smart Humidity Control with Filter Compensation

At the heart of the Quest 335 is Filter Compensation Technology—a smart feature using a pressure sensor and variable-speed fan to maintain consistent airflow. As the filter accumulates debris, the fan adjusts automatically to keep the humidity level steady and the air moving efficiently. Just set the fan to "Auto" to activate this function.

Control Onboard or Remotely

The built-in humidistat allows for easy programming with adjustable fan speeds (high, low, or auto). When set to auto, the system automatically adjusts fan speed in response to pressure changes, ensuring optimal performance.

Want even more control? Use the low-voltage terminal block to connect the unit to an external controller. This setup supports remote monitoring and control—and you can link up to three units for streamlined operation.

Performance Meets Sustainability

Now featuring the eco-friendlier R-454B refrigerant, the redesigned Quest 335 delivers exceptional performance with less environmental impact. It removes up to 8.5 pints of moisture per kilowatt-hour (at AHAM conditions), or 6 pints/kWh at 75°F and 50% relative humidity.

Ductable Design for Flexible Placement

When in-room placement isn’t feasible, you can easily duct the Quest 335 into your space using a separately available supply and return duct kit.

Extra Features That Matter

• Drainage: A ¾-inch threaded NPT port supports gravity drainage, with an optional pump kit available.

• Filter & Defrost Alerts: Indicator lights notify you when the filter needs replacing or the auto-defrost is running.

• Dark Mode: Keeps lights off during plant "sleep" cycles—lights stay on for only 20 seconds after activation.

• Built-In Handles: For easy moving and repositioning.

• Flexible Installation: Hang it overhead or set it on the floor.

• Long Reach: Comes with a 10-foot power cord to give you more placement options

Specifications

Commercial/Industrial Applications:

• Gyms & Fitness Centers

• Indoor Growing & Greenhouses

• Kennels & Stables

• Warehouses

Pint Capacity: 345 pints

Internal Condensate Pump: No

Lowest Operating Temperature: 56°F

Auto-Restart: Yes

General Features

• Indoor Growing Use: Yes

• Desiccant: No

• Low Grain Refrigerant (LGR): No

• Wheeled Unit: No

• Ductable: Yes

• Energy Factor:

  • 208–240V: 4.4 L/kWh

  • 277V: 2.9 L/kWh

• Wi-Fi Capable: No

• Certifications: UL Listed

• Automatic Defrost: Yes

• Controls: Electronic

• Built-in Humidistat: Yes

• Fan Speeds: 3

• Max Airflow: 900 CFM

• Refrigerant Type: R-454B

• Bluetooth Capable: No

• California Residents / XACTIMATE / Tools Info: Not Applicable

• Continuous Drainage: Yes

• Number of Filters: 1

• Filter Type: MERV-13

• Drain Hose Included: No

• Color: White

Power Details

• Plug Face Type:

  • 208–240V: NEMA 6-15P

  • 277V: NEMA 7-15P

• Max Amperage:

  • 208V: 7.9 Amps

  • 230V: 6.9 Amps

  • 277V: 6.8 Amps

• Max Wattage: 1700 W

• Voltage Options: 208–240V or 277V

• Power Cord Length: 10 ft

• Wiring Style: Plug-in

Dimensions & Weight

• Height: 23.7 in

• Width:

  • 208–240V model: 24.6 in

  • 277V model: 32.9 in

• Depth:

  • 208–240V model: 32.9 in

  • 277V model: 24.6 in

• Weight: 215 lbs

• Drain Hose Length: N/A

Warranty

• Manufacturer Warranty: 5-Year Limited Warranty