Smart Solutions Case Studies
Delta Electronics (Americas) originally specified a conventional radiant tubing heating and cooling system for its headquarters expansion in Fremont, CA, to help meet LEED® Platinum and net-zero energy building standards, but ACCO Engineered Systems suggested Uponor’s Radiant Rollout™ Mats for a faster, more efficient, consistent installation. ACCO crews installed 138,000′ of tubing with the Radiant Rollout Mats in five months—much faster than the time required for conventional PEX rails or tie-down methods.
By working closely with Daikin on design and modeling, ACCO Engineered Systems successfully installed 875,000 tons of sheet metal, miles of condenser and hot-water piping, and 21 large-capacity Daikin Self-Contained air conditioning (AC) units on a fast-track schedule with no room for delays. The energy-efficient HVAC systems helped the premier $1.2-billion Levi’s Stadium, home of the San Francisco 49ers, become the first NFL stadium to achieve LEED® Gold certification.
By installing new BITZER compressors to replace aging, inefficient, and unreliable technology, ACCO Engineered Systems of Glendale, CA, helped Cedars Sinai Medical Towers in Los Angeles improve the health of its two 11-story buildings. The upgrade not only met the needs of the building’s inhabitants but also qualified for a substantial rebate.
In 2012, ACCO Engineered Systems of Glendale, CA, trained more than 200 service technicians to use its new MobileTech system, tailored for ACCO by WennSoft, and immediately realized more benefits from the system than expected. The new technology speeds up and even eliminates some paperwork and improves communication. By using the streamlined, electronic quoting features, ACCO has already realized a return on its investment in MobileTech.
Commitment to energy-efficient products such as Daikin McQuay’s Magnitude® chillers and reliance on building information modeling (BIM) to manage a complex project helped ACCO Engineered Systems complete what has been called “the greenest urban office building in North America.” The San Francisco Public Utilities Commission (SFPUC) headquarters in downtown San Francisco at 525 Golden Gate opened in July 2012. It produces a 50-percent-smaller carbon footprint and uses 32 percent less energy and 60 percent less water than similar 13-story office buildings.
Confronted with correcting the performance problems of an R22 direct expansion system with two magnetic levitation, oil-less centrifugal compressors at a building in Newport Beach, CA, ACCO Engineered Systems staff ran energy comparisons between oil-less, centrifugal compressor models and screw compressors. To their surprise, BITZER CSW Screw Compressors provided full load and part load efficiencies comparable to the oil-less, centrifugal compressors.
When a major animation studio needed to replace a compressor and upgrade its systems, ACCO Engineered Systems took an unusual approach, replacing a tandem scroll set with a BITZER single semi-hermetic reciprocating 15-ton Varispeed™ model compressor with an integrated VSD. The new unit was easy to install and satisfied the customer’s demands.