Self-Performer Project Spotlight: Compressor Shut-Off and Condensate Recovery
The founders of Computrols have always viewed CBAS as a powerful tool—one that empowers building operators to implement any control strategy they can imagine while delivering real-world benefits.
When we hear about CBAS being utilized in innovative ways and solving real-world challenges we like to highlight them. This month, we’re thrilled to showcase the work of Kenny O’Donnell in New Orleans, LA. Kenny’s ingenuity demonstrates not only the versatility of CBAS but also its practical value in addressing everyday operational needs.
Air Compressor Shut-Off
Kenny implemented a solution that significantly reduces compressor run time and energy consumption. Here’s how it works:
- Components: A solenoid and a pressure transmitter were installed near the discharge compressed air line of the air compressors.
- Logic: The solenoid operates based on CBAS logic:
- If the number of AHUs running is greater than 1, the solenoid opens.
- If the number of AHUs is less than 1, the solenoid closes.
- Monitoring: The pressure transmitter monitors air pressure and sends alerts if it goes out of range.
- Benefits: During off periods, any air leaks do not contribute to compressor run time. This has resulted in a 50% reduction in compressor run time. CBAS calculates run times by wiring an input through auxiliary contacts on the starter contactor.
Condensate Recovery
In another innovative application, Kenny designed a system to recover and reuse condensate water from a 42,000 CFM fresh air unit:
- Recovery Process: Instead of dumping condensate into the drain, the water is captured in a containment drum and pumped back to the cooling tower.
- Measurement: CBAS tracks the recovered water using a pulse-head water meter connected to an analog input.
- Efficiency Gains: Recovered water is pure and free of dissolved solids, which helps reduce cooling tower blowdown and minimizes water and chemical usage.
- Safeguards: The entire system is alarmed through CBAS. If the containment tank overflows, CBAS automatically shuts down the flow.
Share Your Success Story
Do you have an innovative way of using CBAS? We’d love to hear about it! Send your example to techsupport@computrols.com, and you could be featured in an upcoming newsletter article!
