Learn how a low-grain refrigerant (LGR) dehumidifier works, such as our new upcoming EPD100, EPD170LGR and EPD330LGR.


Unlike other conventional refrigerant dehumidifiers, the EPD170 low-grain refrigerant (LGR) dehumidifier works on a system of double cooling, lowering the temperature of moisture.

This double system of cooling can be seen above: two streams of air arrive at the LGR dehumidifier unit, one being warm and humid, the other is cold and humid.

Moisture is removed as the water is put into a water tank from the evaporator, and the warm humid air is made cold and humid through a cold energy storage.

Eventually, cold, and dry air is made in the condenser, this then becomes warm and dry air.

More efficient at higher temperatures, better performance and with an enhanced pre-cooling system, the EPDXX0LGR dehumidifier is perfect for the restoration industry.

This pre-cooling system involves the refrigeration system shutting off and the ice melting again, dripping away to be collected as water. It continues to dry to a lower humidity, pulling more water out of the air compared to a similarly sized refrigerant dehumidifiers, and removes more water per kilowatt of electricity consumed than a similarly sized conventional refrigerant dehumidifier.

This is what makes the unit an LGR.

LGR dehumidifier compared to a standard compressor dehumidifier.

The Diagram: Process of how an LGR dehumidifier works.

The EPD170LGR, EPD100LGR and EPD330LGR  units are designed to counter any negatives most LGR units have. Normal LGR units are well known to be immobile, costly, and have bad filters.

In opposition to this, the Ecor Pro EPD LGR series rejects continuing such drawbacks.

Ensuring it is a favoured unit even for insurance companies, the EPD LGR family is a fully mobile dehumidifier, easy to transport, easy to clean. All units havea solid galvanised steel skelton to give strength an regidity, fitted with a wire mesh duct filter, integral pump.

Furthermore, when many companies and organisations claim an LGR removes “some” water, it is seen as a multidimensional term: does this mean two cups? Two drops? Three tonnes? At Ecor Pro we define it simply as to remove at least as many pints per day or litres as the number of Watts it uses.

Especially designed for flood applications and drying building work, paint, or plaster quicker.