Quest New 335 Overhead Dehumidifier With M-CoRR, 277V

Commercial growers facing heavy moisture loads need a dehumidifier engineered for that scale, not a compact unit stretched beyond its rated capacity. The Quest 335 uses a multi-coil design similar to the Quest 506, paired with patented M-CoRR technology, to pull 345 pints of water from the air every 24 hours at 80 degrees and 60% relative humidity.

This version runs on 277V power, drawing 6.3 amps — a voltage many grow rooms already have available for lighting circuits, freeing up electrical capacity elsewhere in the facility. It carries the same filter compensation feature and California Title 24 compliance as the 208/230V unit.

Key Features & Benefits

• 345 Pints/Day at 8.5 Pints/kWh — rated at 80°F and 60% relative humidity.
• Patented M-CoRR Technology — multi-coil design recycles excess heat.
• Filter Compensation — maintains a consistent environment as filters load.
• Meets California Title 24 — for both ducted and non-ducted installations.
• 277V Power Supply, 6.3A Draw — suited to facilities with existing 277V circuits.

Who Should Use the Quest New 335 Dehumidifier

Commercial growers facing heavy moisture loads who need a high-capacity overhead dehumidifier built for continuous, large-scale operation.

About Quest

Therma-Stor LLC, headquartered in Madison, Wisconsin, manufactures Quest dehumidification equipment alongside its related Anden brand, with a focus on commercial-grade performance. Across the Quest lineup, patented M-CoRR multi-coil technology recaptures heat generated during dehumidification rather than venting it away, a design aimed at cultivation facilities, food production, and other demanding commercial or industrial environments.

Frequently Asked Questions

How much water does this dehumidifier pull from the air daily?

It's rated for 345 pints per day at 8.5 pints per kWh, measured at 80 degrees and 60% relative humidity. A multi-coil design similar to the Quest 506 helps it handle that heavier moisture load.

What does the filter compensation feature do?

It helps maintain a consistent environment as the filter loads with dust and other particulate over time, rather than letting performance drift between filter changes. That keeps humidity control more stable between maintenance intervals.

Why choose the 277V version over 208/230V?

277V is a voltage many grow rooms already have available for lighting circuits, and running the dehumidifier on that same voltage can free up amperage elsewhere in the facility. It draws 6.3 amps and delivers the same 345 pints per day rating as the 208/230V unit.

Is this unit compliant for ducted installations?

Yes, it meets California Title 24 for both ducted and non-ducted setups. That gives installers flexibility in how the unit is integrated into a facility's HVAC plan.

Is a warranty included?

Yes, contact Quest support with your unit's model and part number if you need warranty service. Hold on to your order confirmation as proof of purchase.