Metraflex says it has made the first major redesign to conventional Y-Strainers since the early 1900s. The Low Pressure Drop LPD Y-Strainer, a patent-pending design, is completely re-engineered with a screen 50% to 60% larger than the industry average, with more holes and a larger surface area.
Continental Fan has introduced the new DXG & DXP AC Motorized Axials. The coupling of the motor and impeller minimizes space requirements and provides for vibration free operation. Both motor and impeller are located directly in the air stream, providing excellent heat dissipation and efficient motor cooling, according to the company.
Bosch Thermotechnology will introduce a new sealed combustion, high-efficiency stainless steel boiler line with condensing technology. The SSB family will consist of a total of eight models in four separate housing sizes with inputs ranging from 85 MBH up to 1,024 MBH, applicable for use in small studio units all the way up to commercial buildings.
Johnson Controls recently unveiled its new York VRF solution, a benefit of the company’s recent Hitachi joint venture. The ductless and modular HVAC solution heats and cools multiple building zones to increase energy savings, improve occupant comfort, and lower construction costs. VRF features Hitachi’s high-efficiency compressors and is complemented by energy modeling and selection tools to measure and compare VRF to other HVAC technologies.
Riello UPS introduces the Master HP UL, a UL® listed, three-phase UPS for 65-250 kVA applications. Built entirely with IGBT and digital signal processing (DSP), the Master HP UL features online double-conversion technology for maximum power supply protection and power quality with a clean sine wave output.
Greenheck’s new Fire Ready Hood, Model GRRS, functions as a standard ventilation range hood with the added capacity to suppress stove-top fires, addressing the challenge of protecting residential-style appliances used in commercial settings.
MacroAir has introduced the AirVolution-D 370, 550, and 780. Ideal for ceiling heights as low as 12 ft, the company says the next generation motor design eliminates the gearbox, resulting in reduced noise, zero maintenance, and easy installation. Airfoil sizes of 6 ft to 12 ft integrate into any small space. Airfoils are available in black and woodgrain, and the on-board AirBrain optimizes motor control.
Built for performance and longevity with symmetrical fire tube technology, boiler and water heater manufacturer RBI has brought a new high efficiency fire tube boiler to market — the FlexCore 1.5. The boiler achieves 95.1% AHRI certified efficiency and utilizes a precisely temperature-balanced flex core heat exchanger, which the company says provides the highest efficiencies and durability beyond that of any competitive fire tube boiler on the market.
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.