enVerid Systems, Inc. has announced the launch of its new HVAC Load Reduction (HLR) module for rooftop installations. Designed for outdoors, the HLR 1000E-R system builds on the success of enVerid’s HLR modules for indoor deployments in commercial, government and academic buildings. 

“Adoption of our HLR solutions has accelerated among Fortune 500 companies and major universities,” says Udi Meirav, CEO of enVerid Systems. “We have listened closely to the needs in the marketplace and are pleased to meet the demand we’re seeing for an outdoor solution that provides the immediate payback on HVAC designs while increasing energy savings and indoor air quality.” 

Instead of the legacy practice of replacing the entire volume of indoor air with outside air every one to two hours to minimize concentrations of unhealthy indoor air pollutants, HLR modules clean and recycle indoor air. In doing so, HLR systems reduce the outside air intake required to ventilate a building by 60 to 80 percent, enabling up to a 40 percent reduction in peak HVAC capacity and significant equipment savings. Additionally, the system decreases annual energy consumption by 20 to 30 percent while improving indoor air quality (IAQ) for better health, productivity, and satisfaction of building occupants. 

The HLR 1000E-R safely captures and cleans all indoor air of contaminants typical of commercial, education, and government buildings, including carbon dioxide (CO2), volatile organic compounds (VOCs), and aldehydes. Also, bringing in less polluted outside air reduces the introduction of additional harmful contaminants to a building, like ozone and particulate matter (PM2.5). The system generally has immediate payback as buildings can invest in lower-capacity and less expensive HVAC systems, and are eligible for local utility rebate programs that can cover up to half the initial cost. In addition, implementing the technology along with an indoor air quality assessment can earn as many as 17 LEED points for buildings, which is over 40 percent of the points required to receive LEED certification. 

Some commercial buildings require extra outside air flow to maintain indoor air quality, resulting in some areas of the building getting too cold, sparking an increase in complaints from occupants. This problem is further exacerbated in buildings with higher occupant densities than they were originally designed for – common in open-plan office buildings. By reducing outside air, the HLR 1000E-R system ensures that there are fewer drafts in the building and the HVAC system can more easily maintain temperature and humidity on extreme weather days. 

The HLR 1000E-R can be installed during new construction or as a retrofit, and has a double-walled, insulated construction certified for 1,000-hour salt-spray. The technology is compliant to the standards for ventilation defined by the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) Standard 62.1 Indoor Air Quality Procedure (IAQP) and the International Mechanical Code (IMC).