Johnson Controls has introduced the Quantech Air-Cooled Chillers. The company says the chillers offer up to 50% annual energy cost savings compared with the replaced chillers, have a low lifecycle cost, meet or exceed ASHRAE standards, and help earn LEED credit with a low refrigerant charge. Three models make up the Quantech chiller line. The QTC2 (15-50 tons) provides chilled water for all air conditioning applications using central station air handling or terminal units. The state-of-the-art installation uses tube and fin condensers, brazed plate evaporators, and scroll compressors.
The Drives & Motion Division of Yaskawa America has introduced the Z1000U HVAC Matrix Drive. The company says the drive provides extremely low harmonic distortion in a space-saving design, along with the same HVAC-specific features as the standard Z1000.
The Metraflex Company has developed the Seismic BreakAway Coupling. The company says the product is a solution for hanger rods that are too short and do not allow for the full-rated movement of seismic expansion loops during seismic events.
RectorSeal® has launched the MicroV ductless mini-split air-conditioner condensate pump, which the company says combines the quiet-running Silent+ technology along with a univolt power supply and plug-and-play power/communication connection cable.
Belimo Americas releases its new ZIP Packs. The packaged solution is designed to provide the necessary equipment to retrofit current systems — the ZIP economizer base, sensors, energy module for demand control ventilation (DCV) integration, spring return actuator, and retrofit brackets backed with a five-year warranty.
Carrier’s newly expanded AquaEdge 19XR centrifugal chiller line is now commercially available up to 3,000 tons. The line, which was introduced in early 2014 to serve large buildings and process applications, is now available from 800 to 3,000 tons.
For use in a wide range of processing applications ranging from sanitary and food processing to water treatment and chemical operations, Matco-Norca now offers a range of carbon steel and stainless steel (CS & SS) valves.
International Environmental Corp. (IEC) has unveiled the ReStoraMOD™ modular hi-rise replacement fan coil series. Designed to streamline HVAC renovations in hospitality and other hi-rise environments, the company says the ReStoraMOD can be installed with minimal disturbance to existing wall and room finishes in as little as a few hours.
Taco’s newest Zone Sentry Zone Valve – with an inverted flare – is suited for retrofit and new construction work. According to the company, the zone valves improve the overall performance of any hydronic system that uses a zone valve. Taco’s zone valve line uses microcircuit-based logic to control a gear-driven electronic actuator that drives a ball valve-based body design.
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.