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Quest 506 Dehumidifier – 277V, 500 Pints/Day Moisture Control for Large-Scale Commercial Environments

by Quest
Save $256.00
Original Price $8,255.95
Current Price $7,999.95

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Energy-efficient 506-pint commercial dehumidifier built for high-demand grow rooms, industrial sites, and agricultural environments

The Quest 506 Dehumidifier (277V) is a high-performance solution engineered to tackle humidity challenges in large-scale operations. Capable of removing up to 500 pints per day at 80°F/60% RH, this model offers best-in-class energy efficiency at 9.2 pints per kilowatt-hour — making it the most energy-efficient commercial dehumidifier on the market.

It operates on 277V power with a low 8.2-amp draw, allowing businesses to preserve electrical capacity for other equipment. Its patented M-CoRR technology recycles heat to reduce load on air conditioning systems, while its MERV-13 filtration system improves indoor air quality by capturing airborne mold, bacteria, and viruses. Designed, engineered, and assembled in Madison, Wisconsin, the 506 is UL-rated, ETL-listed, and Title 24 energy-compliant, delivering commercial-grade performance with full regulatory alignment.

Achieve more with the Quest 506 High-Capacity Dehumidifier — a powerful and reliable tool for climate control in high-humidity environments.

Whether you’re protecting crops, equipment, or processing spaces, the Quest 506 Commercial Dehumidifier ensures your environment stays balanced, dry, and compliant.



Key Features 

  • Removes up to 500 pints/day of moisture for dependable control in large-scale operations

  • Industry-leading energy efficiency at 9.2 pints/kWh

  • 277V input with low 8.2-amp draw to conserve electrical capacity

  • Patented M-CoRR heat recycling technology minimizes space heating and A/C usage

  • MERV-13 filter removes dust, mold, bacteria, and airborne viruses — 20% more effective than standard filters

  • Onboard digital controls with external control compatibility

  • Integrated suspension points and handles for flexible installation

  • Auto-restart and defrost modes for uninterrupted operation

  • California Title 24 energy compliant (ducted and non-ducted)

  • UL-rated and ETL-listed for safety and reliability

  • Backed by 5-Year Warranty on compressor and coils


Quest 506 Commercial Dehumidifier: Built for Professional Growers and Industrial Facilities

Designed for heavy-duty humidity removal, the Quest 506 Commercial Dehumidifier is perfect for commercial cultivation, food processing, and industrial environments where moisture control is critical. Its advanced multi-coil design boosts performance and reduces heat output into the room, easing the burden on air conditioning systems and lowering energy costs.


🌿 Ideal Applications

  • Indoor grow rooms and vertical farms

  • Commercial greenhouses and agricultural buildings

  • Drying and curing rooms

  • Food and beverage processing plants

  • Warehouses and manufacturing facilities

  • Environments with 277V electrical infrastructure


Quest 506 High-Capacity Dehumidifier: Maximum Efficiency and Installation Versatility

The Quest 506 High-Capacity Dehumidifier is optimized for suspended or floor-based installs, with integrated handles and mounting points. Its compact footprint and broad 56°F–95°F operating range make it an ideal fit across a variety of commercial setups. Whether ducted or open-air, this unit meets California’s strict energy efficiency requirements and keeps air quality in check with high-grade filtration.

Installation Options 

Freestanding Unit

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

P-Trap Requirements


🛠️ Maintenance Tips

  • Replace MERV-13 filter every 1–3 months depending on air quality

  • Keep coils clean for consistent efficiency

  • Ensure proper drainage; use gravity or add a pump if needed

  • Verify airflow remains unobstructed

  • Connect to external environmental controller for automation (e.g., TrolMaster)


🔒 Control Humidity at Scale with the Quest 506 – The Industry’s Most Efficient Dehumidifier

With unmatched performance, low energy draw, and robust safety certifications, the Quest 506 is built for professionals who can't afford compromises. Order now and protect your environment from moisture-related risks with confidence.

Specifications
  • Moisture Removal: 500 Pints/Day @ 80°F/60% RH

  • Voltage: 277V, Single Phase

  • Amperage: 8.2 Amps

  • Energy Efficiency: 9.2 Pints/kWh

  • Frequency: 60 Hz

  • BTU Output: 31,900 BTU/hour

  • Wattage: 2,700 Watts

  • Dimensions: 44.8" L x 28.9" W x 34.1" H

  • Weight (Unit): 280 lbs

  • Shipping Weight: 335 lbs

  • Filter: MERV-13

  • Operating Range: 56°F – 95°F

  • Installation: Overhead Suspension or Freestanding

  • Certifications: UL Rated, ETL Listed

  • Compliance: Title 24 (Ducted & Non-Ducted)

  • UPC: 810017961757

  • Product Code: 4046310


User Manual

Quest 506 Dehumidifier – 277V, 500 Pints/Day Moisture Control for Large-Scale Commercial Environments Specifications 

Quest 506 Dehumidifier – 277V, 500 Pints/Day Moisture Control for Large-Scale Commercial Environments Literature

Quest 506 Dehumidifier – 277V, 500 Pints/Day Moisture Control for Large-Scale Commercial Environments Operation 


FAQ

Q: What’s the energy efficiency rating of this unit?
A: The Quest 506 delivers an unmatched 9.2 pints per kilowatt-hour, making it the most energy-efficient commercial dehumidifier available.

Q: Can I install this in a suspended overhead position?
A: Yes, the unit comes with integrated suspension points for overhead mounting, as well as handles for easier handling.

Q: Does the 506 require a special power setup?
A: It requires a 277V, single-phase electrical connection. Please confirm your facility’s compatibility before purchase.

Q: How does M-CoRR technology help?
A: M-CoRR recycles internal heat to reduce the amount of warm air released into your space, minimizing A/C usage.

Q: What certifications does this dehumidifier meet?
A: It is UL-rated, ETL-listed, and California Title 24 compliant, meeting some of the most rigorous industry standards.

Q: How often should I replace the filter?
A: Every 1–3 months, depending on environmental conditions.

Q: What’s the warranty coverage?
A: The compressor and coils are covered for 5 years, and all other parts for 1 year.


Videos


Warranty
  • 5 Years – Compressor & Coils

  • 1 Year – Parts & Labor

  • Fully backed by Quest’s U.S.-based support and service network

Energy-efficient 506-pint commercial dehumidifier built for high-demand grow rooms, industrial sites, and agricultural environments

The Quest 506 Dehumidifier (277V) is a high-performance solution engineered to tackle humidity challenges in large-scale operations. Capable of removing up to 500 pints per day at 80°F/60% RH, this model offers best-in-class energy efficiency at 9.2 pints per kilowatt-hour — making it the most energy-efficient commercial dehumidifier on the market.

It operates on 277V power with a low 8.2-amp draw, allowing businesses to preserve electrical capacity for other equipment. Its patented M-CoRR technology recycles heat to reduce load on air conditioning systems, while its MERV-13 filtration system improves indoor air quality by capturing airborne mold, bacteria, and viruses. Designed, engineered, and assembled in Madison, Wisconsin, the 506 is UL-rated, ETL-listed, and Title 24 energy-compliant, delivering commercial-grade performance with full regulatory alignment.

Achieve more with the Quest 506 High-Capacity Dehumidifier — a powerful and reliable tool for climate control in high-humidity environments.

Whether you’re protecting crops, equipment, or processing spaces, the Quest 506 Commercial Dehumidifier ensures your environment stays balanced, dry, and compliant.



Key Features 

  • Removes up to 500 pints/day of moisture for dependable control in large-scale operations

  • Industry-leading energy efficiency at 9.2 pints/kWh

  • 277V input with low 8.2-amp draw to conserve electrical capacity

  • Patented M-CoRR heat recycling technology minimizes space heating and A/C usage

  • MERV-13 filter removes dust, mold, bacteria, and airborne viruses — 20% more effective than standard filters

  • Onboard digital controls with external control compatibility

  • Integrated suspension points and handles for flexible installation

  • Auto-restart and defrost modes for uninterrupted operation

  • California Title 24 energy compliant (ducted and non-ducted)

  • UL-rated and ETL-listed for safety and reliability

  • Backed by 5-Year Warranty on compressor and coils


Quest 506 Commercial Dehumidifier: Built for Professional Growers and Industrial Facilities

Designed for heavy-duty humidity removal, the Quest 506 Commercial Dehumidifier is perfect for commercial cultivation, food processing, and industrial environments where moisture control is critical. Its advanced multi-coil design boosts performance and reduces heat output into the room, easing the burden on air conditioning systems and lowering energy costs.


🌿 Ideal Applications

  • Indoor grow rooms and vertical farms

  • Commercial greenhouses and agricultural buildings

  • Drying and curing rooms

  • Food and beverage processing plants

  • Warehouses and manufacturing facilities

  • Environments with 277V electrical infrastructure


Quest 506 High-Capacity Dehumidifier: Maximum Efficiency and Installation Versatility

The Quest 506 High-Capacity Dehumidifier is optimized for suspended or floor-based installs, with integrated handles and mounting points. Its compact footprint and broad 56°F–95°F operating range make it an ideal fit across a variety of commercial setups. Whether ducted or open-air, this unit meets California’s strict energy efficiency requirements and keeps air quality in check with high-grade filtration.

Installation Options 

Freestanding Unit

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

P-Trap Requirements


🛠️ Maintenance Tips

  • Replace MERV-13 filter every 1–3 months depending on air quality

  • Keep coils clean for consistent efficiency

  • Ensure proper drainage; use gravity or add a pump if needed

  • Verify airflow remains unobstructed

  • Connect to external environmental controller for automation (e.g., TrolMaster)


🔒 Control Humidity at Scale with the Quest 506 – The Industry’s Most Efficient Dehumidifier

With unmatched performance, low energy draw, and robust safety certifications, the Quest 506 is built for professionals who can't afford compromises. Order now and protect your environment from moisture-related risks with confidence.

  • Moisture Removal: 500 Pints/Day @ 80°F/60% RH

  • Voltage: 277V, Single Phase

  • Amperage: 8.2 Amps

  • Energy Efficiency: 9.2 Pints/kWh

  • Frequency: 60 Hz

  • BTU Output: 31,900 BTU/hour

  • Wattage: 2,700 Watts

  • Dimensions: 44.8" L x 28.9" W x 34.1" H

  • Weight (Unit): 280 lbs

  • Shipping Weight: 335 lbs

  • Filter: MERV-13

  • Operating Range: 56°F – 95°F

  • Installation: Overhead Suspension or Freestanding

  • Certifications: UL Rated, ETL Listed

  • Compliance: Title 24 (Ducted & Non-Ducted)

  • UPC: 810017961757

  • Product Code: 4046310


Q: What’s the energy efficiency rating of this unit?
A: The Quest 506 delivers an unmatched 9.2 pints per kilowatt-hour, making it the most energy-efficient commercial dehumidifier available.

Q: Can I install this in a suspended overhead position?
A: Yes, the unit comes with integrated suspension points for overhead mounting, as well as handles for easier handling.

Q: Does the 506 require a special power setup?
A: It requires a 277V, single-phase electrical connection. Please confirm your facility’s compatibility before purchase.

Q: How does M-CoRR technology help?
A: M-CoRR recycles internal heat to reduce the amount of warm air released into your space, minimizing A/C usage.

Q: What certifications does this dehumidifier meet?
A: It is UL-rated, ETL-listed, and California Title 24 compliant, meeting some of the most rigorous industry standards.

Q: How often should I replace the filter?
A: Every 1–3 months, depending on environmental conditions.

Q: What’s the warranty coverage?
A: The compressor and coils are covered for 5 years, and all other parts for 1 year.



  • 5 Years – Compressor & Coils

  • 1 Year – Parts & Labor

  • Fully backed by Quest’s U.S.-based support and service network

We get it. You've got a lot of choices when it come to online retailers. Here's why we think you should shop with us at Garden GrowShop.

  • Free Shipping USA wide. No extra charges ever.
  • Price Match Guarantee. Best prices online guarenteed.
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Great service. We pride ourselves on the best service, anywhere. 

Shipping is FREE on all orders to customers within USA.

We don't want to mess around with fine print and extra charges, we like things to be simple and easy. 

As soon as you place your order you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  

We will send you shipping confirmation within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.  

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Energy-efficient 506-pint commercial dehumidifier built for high-demand grow rooms, industrial sites, and agricultural environments

The Quest 506 Dehumidifier (277V) is a high-performance solution engineered to tackle humidity challenges in large-scale operations. Capable of removing up to 500 pints per day at 80°F/60% RH, this model offers best-in-class energy efficiency at 9.2 pints per kilowatt-hour — making it the most energy-efficient commercial dehumidifier on the market.

It operates on 277V power with a low 8.2-amp draw, allowing businesses to preserve electrical capacity for other equipment. Its patented M-CoRR technology recycles heat to reduce load on air conditioning systems, while its MERV-13 filtration system improves indoor air quality by capturing airborne mold, bacteria, and viruses. Designed, engineered, and assembled in Madison, Wisconsin, the 506 is UL-rated, ETL-listed, and Title 24 energy-compliant, delivering commercial-grade performance with full regulatory alignment.

Achieve more with the Quest 506 High-Capacity Dehumidifier — a powerful and reliable tool for climate control in high-humidity environments.

Whether you’re protecting crops, equipment, or processing spaces, the Quest 506 Commercial Dehumidifier ensures your environment stays balanced, dry, and compliant.



Key Features 

  • Removes up to 500 pints/day of moisture for dependable control in large-scale operations

  • Industry-leading energy efficiency at 9.2 pints/kWh

  • 277V input with low 8.2-amp draw to conserve electrical capacity

  • Patented M-CoRR heat recycling technology minimizes space heating and A/C usage

  • MERV-13 filter removes dust, mold, bacteria, and airborne viruses — 20% more effective than standard filters

  • Onboard digital controls with external control compatibility

  • Integrated suspension points and handles for flexible installation

  • Auto-restart and defrost modes for uninterrupted operation

  • California Title 24 energy compliant (ducted and non-ducted)

  • UL-rated and ETL-listed for safety and reliability

  • Backed by 5-Year Warranty on compressor and coils


Quest 506 Commercial Dehumidifier: Built for Professional Growers and Industrial Facilities

Designed for heavy-duty humidity removal, the Quest 506 Commercial Dehumidifier is perfect for commercial cultivation, food processing, and industrial environments where moisture control is critical. Its advanced multi-coil design boosts performance and reduces heat output into the room, easing the burden on air conditioning systems and lowering energy costs.


🌿 Ideal Applications

  • Indoor grow rooms and vertical farms

  • Commercial greenhouses and agricultural buildings

  • Drying and curing rooms

  • Food and beverage processing plants

  • Warehouses and manufacturing facilities

  • Environments with 277V electrical infrastructure


Quest 506 High-Capacity Dehumidifier: Maximum Efficiency and Installation Versatility

The Quest 506 High-Capacity Dehumidifier is optimized for suspended or floor-based installs, with integrated handles and mounting points. Its compact footprint and broad 56°F–95°F operating range make it an ideal fit across a variety of commercial setups. Whether ducted or open-air, this unit meets California’s strict energy efficiency requirements and keeps air quality in check with high-grade filtration.

Installation Options 

Freestanding Unit

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

P-Trap Requirements


🛠️ Maintenance Tips

  • Replace MERV-13 filter every 1–3 months depending on air quality

  • Keep coils clean for consistent efficiency

  • Ensure proper drainage; use gravity or add a pump if needed

  • Verify airflow remains unobstructed

  • Connect to external environmental controller for automation (e.g., TrolMaster)


🔒 Control Humidity at Scale with the Quest 506 – The Industry’s Most Efficient Dehumidifier

With unmatched performance, low energy draw, and robust safety certifications, the Quest 506 is built for professionals who can't afford compromises. Order now and protect your environment from moisture-related risks with confidence.

  • Moisture Removal: 500 Pints/Day @ 80°F/60% RH

  • Voltage: 277V, Single Phase

  • Amperage: 8.2 Amps

  • Energy Efficiency: 9.2 Pints/kWh

  • Frequency: 60 Hz

  • BTU Output: 31,900 BTU/hour

  • Wattage: 2,700 Watts

  • Dimensions: 44.8" L x 28.9" W x 34.1" H

  • Weight (Unit): 280 lbs

  • Shipping Weight: 335 lbs

  • Filter: MERV-13

  • Operating Range: 56°F – 95°F

  • Installation: Overhead Suspension or Freestanding

  • Certifications: UL Rated, ETL Listed

  • Compliance: Title 24 (Ducted & Non-Ducted)

  • UPC: 810017961757

  • Product Code: 4046310


Q: What’s the energy efficiency rating of this unit?
A: The Quest 506 delivers an unmatched 9.2 pints per kilowatt-hour, making it the most energy-efficient commercial dehumidifier available.

Q: Can I install this in a suspended overhead position?
A: Yes, the unit comes with integrated suspension points for overhead mounting, as well as handles for easier handling.

Q: Does the 506 require a special power setup?
A: It requires a 277V, single-phase electrical connection. Please confirm your facility’s compatibility before purchase.

Q: How does M-CoRR technology help?
A: M-CoRR recycles internal heat to reduce the amount of warm air released into your space, minimizing A/C usage.

Q: What certifications does this dehumidifier meet?
A: It is UL-rated, ETL-listed, and California Title 24 compliant, meeting some of the most rigorous industry standards.

Q: How often should I replace the filter?
A: Every 1–3 months, depending on environmental conditions.

Q: What’s the warranty coverage?
A: The compressor and coils are covered for 5 years, and all other parts for 1 year.



  • 5 Years – Compressor & Coils

  • 1 Year – Parts & Labor

  • Fully backed by Quest’s U.S.-based support and service network

We get it. You've got a lot of choices when it come to online retailers. Here's why we think you should shop with us at Garden GrowShop.

  • Free Shipping USA wide. No extra charges ever.
  • Price Match Guarantee. Best prices online guarenteed.
  • 30 Day Easy Returns. Not happy with your product, we'll take it back no questions asked.
  • Great service. We pride ourselves on the best service, anywhere. 

Shipping is FREE on all orders to customers within USA.

We don't want to mess around with fine print and extra charges, we like things to be simple and easy. 

As soon as you place your order you will receive an order confirmation e-mail.  This means that we have received your order in our system and pre-authorized your credit card for the purchase.  

We will send you shipping confirmation within 24 hours of your order leaving the warehouse to the e-mail address you provided when checking out.