Envent, in collaboration with GHD Design Group and contractor Black & McDonald, delivered a high-performance HVAC solution for the Sanofi Wastewater Treatment Plant. Designed for the demanding conditions of a wastewater environment, this project required a custom air handling unit (AHU) with integrated controls, high energy efficiency, and long-term durability. O'Dell HVAC Group, the local manufacturer representative, played a key role in supporting project coordination and ensuring the right solution was delivered on time and within budget.

Project Scope

The solution centered around a centralized AHU system specifically engineered for corrosive industrial environments. Envent worked closely with GHD Design Group to develop a unit that combined modulating indirect gas-fired heating with an enthalpic plate energy recovery core—providing both precise temperature control and high-efficiency operation. A factory-integrated control strategy, also developed by Envent, was included to ensure seamless system performance. O'Dell HVAC Group supported the design and selection process, while Black & McDonald completed the on-site installation and commissioning.

Challenges & Solutions

Wastewater treatment facilities require HVAC systems that can perform reliably in aggressive environments while maintaining air quality and energy efficiency. Envent's team addressed these challenges with a custom, factory-integrated solution that delivered performance, simplicity, and cost control.

Key Features of the Envent Solution:

• Centralized AHU with modulating indirect gas-fired heat

• Enthalpic plate energy recovery core for reduced energy consumption and minimal air stream cross-contamination

• Fully integrated, turnkey control system engineered by Envent

• Supported by O'Dell HVAC Group for local project management and customer coordination

Results

The Sanofi facility now benefits from an HVAC system purpose-built for its unique operational needs. With high thermal efficiency, reliable performance, and seamless control integration, Envent’s solution has helped the plant maintain consistent indoor air quality and reduce energy costs.

Project Outcomes:

• Long-term system durability in a rugged wastewater environment

• Improved energy efficiency and air quality

• Successful delivery on time and within budget, thanks to close collaboration between Envent, O'Dell HVAC Group, and the project team