Refrigerant dehumidifiers

Unlike most suppliers, the Dantherm Group product ranges include both refrigerant AND desiccant drying equipment. With products that span both technologies, we can offer impartial advice that provides a solution specifically suited for your application.

The process of dehumidification involves moisture-laden air (return air) being drawn into a dehumidifier where the air passes across a refrigerated coil. The air is rapidly cooled below its dew point, condensing the water vapour and recovering its latent heat energy for re-use. The cooled air is then passed across the condenser where it is reheated and (supply air) returned to the served area at the required lower humidity.

Advantages:

• Low energy consumption
• Minimal maintenance required
• High specific moisture extraction (kg/kWh)
• Easy installation
• Small diameter condensate drain

Disadvantages:

• Low performance in cold conditions below 3°C
• Smaller dehumidifiers less suitable for ducting

Where used:

Generally, in recirculation applications where the humidity requirement is above 40% RH.

• Preservation during storage
• Data centres
• Substations and switch gear rooms
• Clothes drying
• Food drying
• Swimming pools

Where not used:

• Single pass (total loss) ventilations systems
• Below 40% RH
• Below 3°C
• Explosive environments

Associated products