AHU Controls Upgrade

We recently completed a full custom control system upgrade for 5 AHUs, a project that came with its fair share of challenges.

One of the biggest hurdles was a lack of schematic drawings or system documentation for the old setup.

Reverse engineering the existing setup was essential to ensure a smooth transition, but the results were worth the effort.

Key Upgrades Included

☑️ PID based control logic Ensures room temperature remains locked to the chosen setpoint, reducing temperature fluctuations and improving comfort

☑️ Gas burner flame modulation control with high and low limits provide optimized energy use, reducing excess gas consumption while maintaining a stable comfortable environment

☑️ Fully custom built solution, we designed both the controller program and the HMI interface from the ground up to meet the custom system requirements

☑️ Remote connectivity – The system can now be accessed and monitored off site providing

☑️ Faster diagnostics and troubleshooting with automatic alerts on fault conditions

☑️ Reduced downtime and maintenance costs

☑️ Optimized performance through real time adjustments

Project Results

By combining smart automation, energy efficiency, and remote access, this upgrade delivers better performance, improved reliability, and lower operational costs.

✅ Optimised AHU performance and control stability

✅ Reduced energy usage and operating costs

✅ Improved reliability and fault response

✅ Enhanced comfort and system longevity