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DH 250 Desiccant Dehumidifier

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Mfg:Novel Aire
Mfg#:DH 250
Standard: 2-7 Business Days: Free!

* Prices reflect shipping fees for a quantity of (1)

The DH 250 has been developed for retail and light commercial applications where humidity control within a specific range is desired. A DH 250 unit will maintain the relative humidity within a space between 45% and 55%, and will  effectively achieve a target relative humidity of 50%, which is ARI standard. The DH 250 series dehumidifier is a packaged, integrated, desiccant dehumidifier system, complete and ready for operation when set in place and connected  to the appropriate ductwork,  electrical power circuit and humidistat control.  220 CFM.  Removes 184 pints of water / day.

Housing outer skin is manufactured 20-guage, bonderite or electro-galvanized (EG) sheet metal and fully insulated with ½-inch thick fiberglass insulating panels. Service of parts will be provided by removable access panels.

Unit supply blower will supply 150 CFM and exhaust blower procedures 70 CFM Blowers of airflow.

Manufactured of corrugated synthetic media with silica gel desiccant bounded uniformly and dispersed throughout the matrix of the media. Exterior of wheel consists of a 20-guage, stainless steel rim. The wheel measures 9½-inches in diameter and chain/spoke driven.

Gear Motor:
Heavy-duty motor is used to rotate the desiccant wheel. Motor achieves a Gear Motor wheel speed rotation of eight (8) revolutions per hour.

The system is manufactured with standard electrical parts. All electrical components are internally pre-wired. Electrical connection consist of one (1), 220-volt, single phase, 60-hertz, 20 AMP connection.

All outlets and intakes are factory completed. Supply duct is 6-inches in diameter and exhaust duct measures 4-inches in diameter.

All exposed surfaces are finished with a standard epoxy primer (chromate free) and two (2) coats of acrylic urethane enamel to a dry film thickness of 1.5 to 2 mils. Enamel is suited for industrial, commercial, and institional applications  that require durability and resistance to moisture, abrasion, and fumes.

The desiccant system is shipped factory assembled and ready for installation. The system will be packaged for shipment as required to protect the housing and components from damage.

The housing will be free from defects in workmanship and material for a period of thirty (30) days from the date of shipment. All parts carry the extended warranty of the manufacturer. The desiccant wheel is warranteed against manufacturer defects for a period of one (1) year. Operational performance is warranted for a period of five (5) years.


  • 2-115V 20 A Circuits
  • 1 PH 60 Hz
  • 2.4 KW / 220 V
  • FLA 13.2 RLA 10.2
  • Maximum Weight : 130 lbs.
  • Process Volume 150 CFM
  • Regeneration Volume 70 CFM
  • Total Volume 220 CFM

***Note: Our shipping arrangement for this item includes palletizing and shipping via an LTL freight carrier. There is a very high risk of damage when the unit is shipped via a small package carrier such as UPS.   This shipping offer includes "to the curb" delivery.  Click here for more shipping details on  this dehumidifier.