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Louisiana Township Addresses Savings with Energy-Efficient Boilers
January 5, 2017 - HVAC
A Louisiana parish was undertaking a major upgrade and reconstruction of its facilities. The massive project, encompasses more than 630,000 square feet across multiple buildings and be completed in two phases: Phase I featured the parish sheriff’s office, kitchen, warehouse and central plant, and Phase II included inmate housing, processing center and the administration tower.
In addition to law enforcement and administrative staff, the complex would house more than 1,400 inmates and contain an institutional kitchen facility that would serve 25,000 meals a day. The facilities were operational 24 hours a day, year round. Given the scale of the project, reliability and efficiency were key to the system’s ultimate success.
The project’s success would be based on many criteria: energy efficiency, indoor air quality, innovation, operation and maintenance and cost effectiveness. What’s more, whatever system was put in place would have to be “scalable” for future expansions of the complex and be easy enough to install so as not to interrupt operations in this busy and secure facility.
The AERCO Innovation 1060s, Benchmark 3000s and KC 1000s were the ideal combination for a project of this scope called for a unit small enough to fit through a standard doorway. The units were installed without expensive rigging and cranes, allowing for a hassle-free installation that didn’t sacrifice the facility’s operation or security. Featuring high-efficiency and low NOx, all AERCO units utilize clean burning natural gas that reduce CO2 emissions and other atmospheric contaminants.
All AERCO units have high turn-down ratios: 20:1 for the Benchmark, 11:1 for the KC1000, and 24:1 for the Innovation, allowing for reliable and close control of set point temperatures.
The Benchmarks unique condensing design and minimum water flow (35 GPM) support variable ow, primary pumping, low temperature system design (130 degrees supply to 90 degrees return) for maximum energy savings. Once installed, the Innovation onboard Water Heater Management system ensures continual, peak efficiency around the clock. It only runs units as they are needed ... the rest are isolated via fully packaged motorized sequencing valves.
Since the Innovations don’t require water storage, there’s no need to burn energy maintaining a setpoint of 140 degrees, yet the system continually met the facility’s high demand, year round.
Both PHASE I and PHASE II of this project were awarded ASHRAE Technology Awards in the category of New Institutional Construction. The projects were judged on enhancements to efficiency, indoor air quality, innovation, operation and maintenance, cost effectiveness, and environmental impact. AERCO’s innovative product line were key in securing this win for its client.
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