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Quest 335 industrial dehumidifier with a white metal body and green accents.
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Quest 335 277V Industrial Dehumidifier — 345 Pints/Day

Official Quest Dealer Model: 4046210
$6,199.95 USD
starting from 0% interest financing from /mo.

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  • 345 pints per day water removal capacity
  • M-CoRR multi-coil refrigeration design for lower heat rejection
  • 6.3 amps current draw at 277V
  • 5-year warranty covering defects in materials and workmanship
  • View More Details
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  • Free Shipping On Most Items*To the lower 48
  • Transparent PricingBacked w/ price match guarantee
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REBATE PROGRAM

Commercial Rebate Program

Licensed operations may qualify for up to a 60% rebate on qualifying equipment.

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THROUGH THE Cultivator's LENS Product Evaluation

  • You are planning a facility expansion because your current climate control setup lacks the power to handle the moisture load from a full-room canopy.
  • You are switching to 277V power circuits because you need to reduce the amperage draw of your climate control equipment across your facility.

  • The 277V configuration effectively lowers the current draw to 6 amps for facilities on higher voltage grids.
  • M-CoRR technology recycles energy internally, which keeps your room temperature stable while pulling moisture.

  • Operators who switched to the 277V model say they significantly reduced the load on their facility circuits.
  • Growers who installed these in flowering rooms report that the internal heat management helped them keep temperatures in the target range.

Quest 335 277V High Efficiency Dehumidifier | M-CoRR Multi-Coil Refrigeration

The Quest 335 is a high-capacity industrial dehumidifier engineered for commercial facilities using 277V power systems. It utilizes patented M-CoRR technology to maximize water removal while minimizing heat rejection into the grow space. This unit processes 345 pints per day at 80°F and 60% RH with an efficiency rating of 8.2 pints per kWh.

Quest 335 277V High Efficiency Dehumidifier in use
345Pints/DayWater removal capacity
8.2Pints/kWhEnergy efficiency rating
6.3AmpsCurrent draw at 277V
900CFMTotal air throughput

Features

M-CoRR Technology

The multi-coil refrigeration design recycles energy within the unit to reduce heat output. This mechanism allows for higher water removal without significantly increasing room temperature.

MERV-13 Filtration

High-grade filtration captures airborne contaminants including mold spores and bacteria. This ensures the air circulating through your facility remains clean and compliant with industrial standards.

Variable Speed EC Motor

The electronically commutated motor adjusts fan speed to maintain consistent airflow. This reduces overall power consumption while extending the operational lifespan of the internal components.

Industrial Operating Range

The unit functions reliably between 56°F and 95°F. This wide temperature range accommodates various facility cycles from vegetative growth to late-stage flowering.

Compare the Quest Line

Capacity
Efficiency
Voltage
Best For
Quest 100Quest 100
100 Pints/Day
7.5 Pints/kWh
120V
Small-scale grow rooms or supplemental humidity control.
Hi-E Dry 140Hi-E Dry 140
135 Pints/Day
7.2 Pints/kWh
110–120 VAC, 1 Phase, 60 Hz
Portable dehumidification for multi-room facilities.
Quest 155Quest 155
155 Pints/Day
8.5 Pints/kWh
110-120 VAC, 1 Phase, 60 Hz
High-efficiency drying for mid-sized commercial spaces.
Hi-E Dry 195Hi-E Dry 195
195 Pints/Day
5.4 Pints/kWh
115 VAC
Heavy-duty portable use where durability is prioritized.
Next-Gen 225Next-Gen 225
225 Pints/Day
7.6 Pints/kWh
208-230V
Standard commercial facilities requiring moderate throughput.
Quest 335 230VQuest 335 230V
345 Pints/Day
8.2 Pints/kWh
208–230 VAC, 1 Phase, 60 Hz
High-efficiency moisture control for 240V industrial grids.
Quest 335 277VQuest 335 277VYou're viewing
345 Pints/Day
8.2 Pints/kWh
277V
Commercial facilities utilizing 277V power to reduce amperage.
Quest 506 230VQuest 506 230V
500 Pints/Day
9.2 Pints/kWh
208V-230V
Maximum capacity for standard industrial voltage systems.
Quest 506 277VQuest 506 277V
500 Pints/Day
9.2 Pints/kWh
277V
High-capacity humidity control for large 277V facilities.
Quest 746Quest 746
746 Pints/Day
7.3 Pints/kWh
480V
Industrial-scale operations with 3-phase 480V power.

In Detail

Quest 335 277V High Efficiency Dehumidifier in use

The Quest 335 solves the common challenge of excessive heat generation during moisture removal. By utilizing M-CoRR technology, the unit captures and reuses energy that would otherwise be exhausted as heat. This design allows facility managers to maintain tighter temperature control while processing 345 pints of water daily. The 277V configuration is specifically built to lower current draw to 6.3 Amps, freeing up critical electrical capacity for high-intensity lighting systems.

  • Processes 345 pints per day at 80 F and 60% RH.
  • Operates at an industry-leading 8.2 pints per kWh efficiency.
  • Features MERV-13 filtration to eliminate airborne mold and bacteria.
  • Supports overhead or ground placement for flexible facility integration.
  • Includes a digital control interface with external monitoring options.

Technical Specifications

PERFORMANCE
Capacity345 Pints/Day @ 80 F | 60% RH
Efficiency8.2 Pints/kWh @ 80 F | 60% RH
Energy Factor3.8 Liters/kWh
BTU (Total)21,500
CFM900
Operating Temperature56 F Min–95 F Max
ELECTRICAL
Supply Voltage277V
Current Draw6.3 Amps
Power1,700 Watts
HARDWARE
Air Filter MERV RatingMERV 13
Refrigerant TypeR454B
Drain Port Connection3/4″ Threaded NPT
Left vertical dimension6.75
Upper right vertical dimension4 "
Lower right vertical dimension2 "

Warranty

This unit includes a 5-year manufacturer warranty covering defects in materials and workmanship. The coverage ensures long-term reliability for commercial operations. This unit is covered by Quest's manufacturer warranty against defects in materials and workmanship under normal commercial use, valid for the original purchaser.

Frequently Asked Questions

Why should I choose the 277V model over the 230V version?

The 277V model is designed for industrial facilities with higher voltage infrastructure to reduce the amperage draw per unit. This allows you to install more equipment on the same circuit and reduces the overall load on your electrical panels.

How much heat does this unit add to my grow room?

The Quest 335 uses M-CoRR technology to minimize heat rejection by recycling energy within the refrigeration coils. While all dehumidifiers generate some heat, this unit is significantly cooler than traditional single-coil models of the same capacity.

Can I mount this dehumidifier to the ceiling?

Yes, this unit supports overhead placement to save floor space in crowded facilities. Please note that while it is designed for hanging, the 3/8 inch threaded rods required for mounting are not included and must be sourced separately.

How often do the MERV-13 filters need to be replaced?

Filter lifespan depends on the dust and particulate levels in your facility, but standard commercial environments typically require a change every 3 to 6 months. Using MERV-13 filters is essential for maintaining air quality and protecting the internal coils from mold buildup.

Does the unit restart automatically after a power outage?

The Quest 335 features an auto-restart function that restores your previous settings immediately when power returns. This prevents humidity spikes in the event of a temporary facility power failure.

Can I connect this to an external environmental controller?

Yes, the unit includes a digital control interface with an external control option. You can use the low-voltage terminal block to integrate the dehumidifier with most major commercial grow room controllers.

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Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

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