High Efficiency Dehumidification System (HEDS)

Decades of energy efficiency engineering and controls optimization experience fed our desire to create a healthier building environment, Conservant Systems developed the High Efficiency Dehumidification System (HEDS). We wanted to create a dehumidification system that ensured healthy buildings and healthy people – but still accounted for a healthy bottom line. HEDS uses simple, common sense, energy recovery and an innovative control system to vastly increase energy efficiency over traditional HVAC units while simultaneously mitigating the mechanisms that promote the growth and transmission of mold and airborne pathogens. By putting people first, we were able to design a first-of-its-kind dehumidification system that is cost-effective, hyper-energy efficient and creates consistently healthy and productive building conditions.

How Does IT Work?

Dehumidification with Traditional AHUs

In traditional Air Handling Units (AHU) designed for dehumidification, air is sub-cooled to draw moisture out, then reheated using a new energy source to raise the supply air temperature and lower the supply air relative humidity. This process uses energy inefficiently, and is now banned by ASHRAE codes. At many facilities, the reheat portion of the process was never designed into the system, or it has been shut down due to energy waste concerns, nearly guaranteeing that mold will grow in the facility.

Dehumidification with HEDS

HEDS turns the old system on its head. Significantly larger coils derive 100% of the reheat energy from the low quality heat captured in the cooling process, and reduces the cooling load delivered to the chiller plant by exactly the amount of energy that was reclaimed in the reheat process. This method reduces energy consumption and consistently produces dry, cool air, free from mold and airborne pathogens.

Up to 3 Times More Efficient Than Traditional AHUs

By using the low quality “waste heat” from the large cooling coil to reheat the supply air instead of using a separate reheat source, HEDS is able to reduce the overall chiller plant and boiler plant energy consumption by 50-70%. The recovered energy completely eliminates the need for additional reheat energy for relative humidity control and space comfort.

A Self Funding Solution

A HEDS system will begin paying back its investment immediately. If you are beginning an energy efficiency project, choosing a HEDS solution puts you ahead, helping your Energy Savings Performance Contract (ESPC) and Utility Energy Service Contract (UESC) dollars go further.
If you need cost-effective energy efficiency that doesn’t sacrifice the comfort and safety of your people, make sure to ask for the High Efficiency Dehumidification System (HEDS).

Find out More about Conservant

Learn more about the inventors of the HEDS system