Extech Instruments has unveiled the new RD300, a heated diode refrigerant leak detector that pinpoints leaks of all CFC, HCFC, and HFC refrigerants with three levels of sensitivity to leaks as small as 0.25oz/yr (7g/yr). The ergonomic tool also features a built-in LED work light on the probe tip for dimly lit locations.
Rosenberg has released four new axial fans, complete with shrouds and finger guards for HVAC condenser applications. The fans are designed with profiled aluminum blades with winglet tips that aim to reduce noise and improve fan performance.
CertainTeed has launched its newly enhanced Sustainable Insulation™ SoftTouch™ Duct Wrap. The product offers improvements in cutting and handling while maintaining the company’s fiberglass product performance. CertainTeed officials said the Sustainable Insulation SoftTouch is a resilient fiberglass blanket-type insulation that provides superior thermal efficiency by reducing unwanted heat loss or gain in both rectangular and round heating, ventilating, and air conditioning ductwork.
Semco LLC introduced the ASCENDANT™ Series, a conventional cooling and active desiccant dehumidification hybrid system with regeneration input. Available in five standard models ranging up to 20,000 cfm, the ASCENDANT Series is ideal for hospital operating rooms, archival and dry storage, hotel/condo buildings, and other applications requiring low dew point temperatures and supply air humidity levels as low as 15 grains.
The Grundfos Hydro MPC BoosterpaQ® is a fully-integrated and compact pressure-boosting system that offers multiple configurations — with up to six pumps in parallel — to accommodate water supply systems, as well as industrial and irrigation applications.
Honeywell has introduced the Command and Control Suite, which the company says turns complex facility data into recommendations and easy-to-implement changes that help boost business outcomes — lowering costs, minimizing risk, and reducing downtime.
Ametek Land has launched the 4650-PM Continuous Dust Monitor. The company says the technology has been used in Europe and can help U.S. power plants to meet the EPA’s new Mercury and Air Toxics Standards (MATS) for particulate matter measurement.
Fresh-Aire UV introduced the Fresh-Aire UV Control Panel, a control panel that automates the monitoring of UV-C wavelength feedback, safety, and efficacy for new air handling unit (AHU) FAUV Commercial Series UV light systems.
Altronic has released the DE-3000+ Advanced Engine-Process Control System, a new safety shutdown and management system for gas engine-driven compressor/pump package applications. The company says the system brings together the latest features and functionality of the recently-enhanced standard DE-3000 system with the MIDAS® human-machine interface (HMI).
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.