Cincinnati. Louisville. Saint Louis.
What do all of these cities have in common?
They all grew on the banks of mighty rivers. These cities are among the oldest in the United States, and sprang up because rivers are important highways for transporting goods and people.

Along these cities, you’ll find massive, historic old warehouses. While some of these buildings are still being used the way the were originally intended, more still are finding new life as office, retail and living spaces. The buildings are being renovated and reimagined in exciting new ways.
For almost all, that means adding in modern requirements while maintaining the original character. In the Ohio Valley, heat and humidity are a significant issue much of the year, and good cooling options are a must.
Contractors are increasingly turning to variable refrigerant (VR) systems as a solution when retrofitting old buildings. Why? These systems don’t require bulky ductwork, saving valuable space in design and construction. Instead of ductwork that moves cooled air, VR systems rely on smaller pipes that move coolant through buildings.
The challenge in multi-tenant arrangements is in determining usage by each tenant. When Hitachi encountered this problem, they turned to ECT Services account manager Mike Fisher for an innovative solution. Within weeks, Mike had created VR Tenant, a solution for monitoring energy usage on a unit by unit basis.
Mike’s solution includes both hardware and software that ties into the variable refrigerant system to gather data and calculate data. A “head end” gathers all data and performs the detailed calculations, and energy measurement devices in each unit of the building measures and monitors usage. Units are determined by the building owner/manager, and the configuration is flexible.
Installation is flexible and fairly simple. Mechanical engineers can install the hardware, and ECT services handles set up and configuration of the software.
If you are renovating a historic building and are considering VRF as a solution, call (800) 567-1180 today for a consultation.