Air Conditioning 


Timber Dryers 


Military Equipment 



Product Data

  Part Number
Height (mm) 787
Width (mm) 552
Depth (mm) 487
Weight(kgs) 31
Voltage 230
Phase 1
Frequency(Hz) 50
Power(kW) 2.2
Current(A) 8
Process Airflow - Dry Air (m3/hr) 370
Regen Airflow - Wet Air (m3/hr) 150
Process Air Duct Size (mm) 130
Regen Air Duct Size - Wet Air (mm) 100
Rotor Wheel Speed (rph) 20
Typical Extraction(l/d) 34
Min Operating Temp (°C) -20
Max OperatingTemp (°C) 40
  Part Number
On/Off Control Y
Integral Electronic Humidistat Y
Manual / Automatic Mode Selection Y
Hours Run Meter Y
Fitted Main Plug Y
Fan Speeds 1
High Capacity PTC Heater Y
Process / Regen Air Filter Y
Rubber Anti-Vibration Wheels Y
Dual Inlet Design Y
Free Standing Y
Handle Y
Epoxy Powder Coated Chassis Y
Inlet Duct Attachments O
High Temperature Safety Cut-outs Y
Part Number Description
3110454 102mm Dia Flexible Ducting
3110455 130mm Dia Flexible Ducting
1064004 Process Air Duct Attachment
1064005 Regen Air Duct Attachment
  Part Number
Wiring Diagram
Wiring Schematic
Spare Parts List


Dehumidifiers are required wherever there is a need to lower the humidity level to prevent corrosion, mould growth and condensation or maintain a low humidity condition during manufacture, packaging or storing of hygroscopic products.


Dehumidification is possible using two possible principles, Condensation with refrigeration style dehumidifiers and Adsorption with desiccant dehumidifiers. Desiccant dehumidifiers perform exceptionally well when used in cooler climates, or when a low dew-point, deep drying or low humidity levels are required. Since desiccant dehumidifiers do not produce water, they will work effectively down to sub zero temperatures. Their operation is simplistic yet extremely effective and reliable. Air (Process Air) is drawn into the dehumidifier, where is passes over a wheel impregnated with Silica Gel. As the air passes over this wheel, any moisture present in the air, is absorbed into the Silica Gel wheel before leaving the dehumidifier as warm dry air. The Silica Gel wheel is continually, slowly rotating, typically at three revolutions per hour. As the wheel rotates a small portion passes through the regeneration segment. During this phase a second air stream (Regeneration Air) is heated to a high temperature before passing over the wheel. Any moisture present in the wheel is released into this air stream, this hot wet air is then exhausted outside the area being dried.


EIPL is Europe’s leading manufacturer of dehumidifiers and is a name you can rely on. No matter how extreme the conditions EIPL’s efficiency copes comfortably even at the coldest temperatures.


Over thirty seven years of development experience means you can rely on the proven track record of the EIP range of dehumidifiers. Every dehumidifier is designed for efficiency and ruggedness, and built to last. The popularity of EIP Ltd’s dehumidifiers with the plant hire trade speaks for their reliability, portability and outstanding durability


The DD400 desiccant dehumidifier has a compact, rugged, lightweight design which facilitates easy transportation by one person, and is easily accommodated within space restricted areas. The unit incorporates a PTC Heater ensuring maximum drying is immediately reached, and constantly maintained while the unit is running. The dual air inlet feature of the DD400, is ideal for installations where the regeneration supply air, needs to be kept separate from the process supply air. In addition to the hours run meter, which shows the units running time, an ammeter is also incorporated in order to monitor the units drying effectiveness. Manual / Automatic control is a standard feature within the DD range of desiccant dehumidifiers, and a remote humidistat can quickly and easily be connected for automatic operation and control The EIP range of DD desiccant dehumidifiers are all manufactured from a high grade stainless steel, ensuring a rust free product when used in the most sever of applications The spigot connectors allow quick and easy installation All models incorporate a high efficiency patented PPS Rotor. This design incorporate a 82% active Silica Gel to ensure optimum performance over the equipments wide operating range of environments. All desiccant rotors supplied by EIPL are washable, and designed for high performance / long life.