Carrier has introduced the AquaSnap 30RAP chiller featuring the Greenspeed Intelligence option, which includes variable speed technology. The company says adding Greenspeed Intelligence to a 30RAP chiller will boost integrated part load value, making it a more efficient chiller in its class, serving applications from 10 to 60 tons.
Greenheck make-up air Models DGX and MSX can now be configured with a direct drive, backward-curved plenum supply fan. Both models offer an operating range capable of 800 – 25,000 cfm and external static pressure up to 4 in. wg. The DGX-P and MSX-P offer additional design solutions when an application requires higher external static pressures caused by extensive ductwork or higher efficiency filtration.
The YORK brand of Johnson Controls has launched the YORK YK-EP “Efficiency Plus” water-cooled centrifugal chiller. The chiller achieves 5% capacity and efficiency improvements over the previous model. It utilizes a patent-pending mechanical compression economizer cycle to boost performance over conventional chiller platforms.
The OMEGA® OM-CP-TEMP1000IS-A and OM-CP-RHTEMP1000IS-A data loggers offer a compact design and portability which allows for placement into hard to reach locations. According to the company, features include a 316 stainless steel enclosure, fast response times, and faster downloads.
Carel introduced two new models of its humiSonic Humidifiers family. Featuring 10% energy consumption, 10,000 hours of operation, and 1 ų water droplet size, the company says its new humiSonic direct was designed to provide energy-savings solutions for direct room humidification, while the humiSonic ventilation is ideal for duct installation. The compact plug-and-play products join the company’s humiSonic compact, which is installed in fan coils.
Uponor PEX pipe and ProPEX® expansion fittings are now available in 2.5-in and 3-in sizes. The company says the new sizes offer professionals the ability to specify, design, and install even more commercial plumbing and hydronic piping systems with PEX.
DuctSox has introduced the SkeleCore™ FTS Jumbo Series that offers 50- to 84-in diameters. The Jumbo Series is an ideal fabric duct solution for large airflow distribution requirements in high-ceiling or high bay spaces such as athletic stadiums, convention halls, aircraft hangers, industrial buildings, and other applications.
Technical Systems (TSI), a division of RAE Corporation, has announced the availability of its Series 35 Evaporative Cooled Chillers. The company says the chillers have been specifically designed to provide-highly efficient cooling for commercial and industrial-duty applications.
RAE Coils announced that it is manufacturing replacement and OEM evaporative condensing tube bundles. The company claims the tube bundles are a critical component of the highly-efficient condensing units originally manufactured by Mammoth’s Ultraline and Penthouse brands. Also, when compared with air cooled technology, officials said the product can result in a reduction of up to 35% in annual operating costs.
Power management company Eaton has developed the XLM Supercapacitor Energy Storage Module designed to provide fast discharge for bridge events in uninterruptible power supplies (UPS) for mission critical applications. The modules offer a green alternative to lead-acid-batteries and are designed to be maintenance free for grid storage and backup power applications.
Leaning on experience and data from various K-12 cities and projects, the author pursues some less conventional design approaches. They may revolve around radiant heating and/or cooling, but depending on school size and other factors, the smart use of heat recovery, DOAS, and improved central plants could also put a project on the HVAC honor roll.