A low-life-cycle-cost chiller, the Evergreen 23XRV with Foxfire compression technology and HFC-134a non-ozone-depleting refrigerant in series counterflow provides the highest efficiency as measured by Air-Conditioning and Refrigeration Institute test standards. Full-and part-load efficiencies are 22 percent and 47 percent better, respectively, than current ANSI/ASHRAE/IESNA Standard 90.1, Energy Standard for Buildings Except Low-Rise Residential Buildings, efficiency standards. Buildings utilizing the variable-speed water-cooled screw chillers in series counterflow could qualify for two Leadership in Energy and Environment Design points in the Energy & Atmosphere category. The chiller has low-voltage control circuits and a hermetically sealed compressor motor. Its password-protected service menu has built-in diagnostic capabilities, troubleshooting, and corrective-action recommendations for preset alarms.
— Carrier Corp.
Said to be the world's first solar-powered, sensor-operated flushometer, the SOLIS flushometer uses light to charge a highly efficient capacitor, providing power even in rooms with occupancy-controlled lighting.
— Sloan Valve Co.
Steril-Zone room air purifiers use a three-stage process to clean air in rooms of up to 1,000 sq ft. Ozone-free, the portable units eliminate bacteria, mold, and viruses. They are useful for offices, schools, and day-care and senior facilities.
— Steril-Aire Inc.
The Element fan is custom-engineered for large spaces, such as shopping malls, office buildings, churches, and recreational facilities. The fan uses a 10 airfoil and winglet design to move air quietly and efficiently.
— Big Ass Fans
Solar air conditioner
A solar-powered air conditioner, GreenCore 10200 operates as a hybrid unit, automatically switching from solar to battery power. The unit operates grid-free through energy captured from the sun. It is suitable for fixed installations or mobile installations for temporary or spot cooling.
Designed to optimize zone/bridge flow and distribution-loop delta-T without sacrificing humidity control and comfort, the Technologic 5500 ZoneSav controller is suitable for use with chilled- or heating-water distribution systems. The controller is useful for two- or three-way control-valve applications.
— Bell & Gossett
Solar water-heating systems
Combining a storage tank with one or two collector panels, Solaraide passive solar water-heating systems operate without pumps or controllers, relying instead on convection to circulate heat-transfer fluid. The systems use a freeze-proof heat-transfer fluid to absorb and deliver heat energy even on cold and overcast days.
For powering medium-voltage motors from 500 to 4,500 hp, MVW-01 variable-frequency drives provide a comprehensive variable-speed control solution in critical high-volume pumping, mixing, and milling applications across a range of industries.
— WEG Electric Motors Corp.
Also visit our TechLit Online section for technical resources and literature.
Send product and literature releases to the attention of Megan White, associate editor, HPAC Engineering, The Penton Media Building, 1300 E. Ninth St., Cleveland, OH 44114-1503; e-mail: email@example.com. Electronic submissions are preferred.