Downtown Little Rock Cooling Tower Upgrade Highlights Smart Commercial HVAC Solutions

Another impressive commercial HVAC upgrade is now complete in downtown Little Rock, demonstrating how the right equipment, manufacturers, and HVAC supplier can elevate performance in dense urban environments.

This rooftop project at the AT&T Building replaced aging, factory-packaged cooling towers atop a 13-story facility with a modern, high-performance solution designed for efficiency, durability, and quiet operation. The installation was completed by Comfort Systems USA, delivering a seamless upgrade with minimal disruption to building operations.

High-Performance Cooling Towers from Marley

At the heart of the project are three-cell, all-stainless-steel cooling towers from Marley Engineered Products, a trusted leader in heat rejection for large-scale commercial HVAC systems. Stainless steel construction provides long-term corrosion resistance, while the multi-cell design delivers redundancy and flexibility to match varying load conditions.

Factory-installed sweeper piping helps reduce sediment buildup, protecting basin integrity and supporting consistent thermal performance over the life of the system.

Advanced Controls and Energy Efficiency by SPX Technologies

Integrated, all-in-one variable frequency drives (VFDs) allow precise fan speed control across the entire tower system. These VFDs are paired with enhanced control panels from SPX Technologies, providing advanced monitoring, simplified commissioning, and optimized energy usage.

A new side-stream filtration system improves water quality, while interior and exterior walkways enhance serviceability and technician safety, key considerations for rooftop systems in urban settings.

CIS Industries: Supporting Engineers and Contractors from Design to Startup

As the regional HVAC supplier, CIS Industries played a critical role in supporting this project from equipment selection through execution. CIS product specialists and engineers work closely with consulting engineers, mechanical contractors, architects, and building owners to ensure solutions are properly sized, efficiently controlled, and aligned with long-term operational goals.

By pairing Marley cooling tower technology with SPX Technologies controls, CIS Industries helps deliver commercial HVAC systems that prioritize energy efficiency, durability, and real-world serviceability. Projects like this underscore the value of early collaboration and expert supplier support in achieving successful outcomes, especially on complex urban rooftops where performance and noise control are equally important.

This downtown Little Rock upgrade stands as a strong example of how thoughtful system design and the right partners can drive long-term value for commercial buildings.

Read more about Marley SPX Cooling Tower Efficiency.