Greenheck’s HB Series of heavy duty industrial backdraft dampers has grown with the addition of the HBR-150, a round industrial backdraft damper with a flanged-style frame. The HBR-150 is rated for velocities up to 4,000 fpm and back pressures up to 6-inch wg.
Dust collectors are used to capture, convey, and collect dust for a wide variety of manufacturing and industrial processes. Whether involving wood, plastic, metal, or chemical dust particles, this is done to improve safety by reducing fire, explosion, and dust inhalation hazards.
Continental Fan has developed its MFT-S Mixed Flow In-Line Fans, available in 4-, 5-, and 6-inch duct diameters. The company says the fans are ideal for either supply or exhaust ventilation systems and are suitable for air temperatures up to 140ºF.
Shannon Enterprises has developed a closed-cell insulation system called the Acoustic Shield. The insulation reduces sound emanating from heating, cooling, and power-generating components found at schools and medical campuses, onboard marine vessels, inside manufacturing facilities, and near retail and residential locations.
Johns Manville has released a flexible fiberglass duct liner with an R-12 thermal resistivity rating. This insulation is designed specifically to meet the new code requirements set forth by the IECC in 2015 that mandate the use of R-12 insulation on ducts in unconditioned spaces in climate zones 5-8.
Sensaphone® has added two new sensors to its line of remote monitoring equipment for HVAC applications. The Sensaphone Duct Mount Air Flow Transmitter measures the rate of airflow and alerts users when conditions fall outside of the preset threshold. The transmitter monitors the presence or absence of cool moving air and measures relative airflow from 0-16 meters per second.
Greenheck’s new line of ceiling radiation dampers are UL classified for installation in wood truss floor/ceiling assemblies. Model CRD-1WT is designed with a plenum box for side inlet or outlet duct connections. Model CRD-2WT’s inlet or outlet duct connection is made on top of the damper.
Haier Ductless is launching a new ductless series designed for light commercial installation as well as large residential applications. The FlexFit Pro series is available from 24,000 Btu to 48,000 Btu.
STULZ Air Technology Systems, Inc. launched its next generation Mini-Space EC precision cooling system for small IT spaces. The Mini-Space EC provides up to 12kW (41 MBH) of cooling while only occupying a 2-ft by 2-ft footprint making it ideal for small IT and telco closets, high-rise buildings, laboratories, and other constrained spaces.
The new Mini-Space EC is available with CW or DX cooling in both up-flow (top discharge) and down-flow (top return) configurations with options for bottom discharge (under floor), front discharge (direct room supply), and ducted rear return (with external filter box).
--STULZ Air Technology Systems
On Demand It’s not the heat, it’s the humidity! At Pfizer Pharmaceutical, this isn’t simply a notion of comfort, it’s a battle cry for engineers responsible for controlling the indoor environment at the company’s pill-manufacturing facility in Puerto Rico. So, when Pfizer began a large HVAC renovation, the company knew tight ductwork was essential. After several failed attempts at traditional manual sealing, contractors recommended a new internal approach to duct sealing. To prove success, painstaking measurements were taken before and after the work was done.
Engineered Systems magazine’s June 2019 issue examines the role of HVAC systems and power in colleges and universities via the decentralization of a Missouri college’s central boiler plant, an examination of ventilation considerations in Group R-2 facilities, the steps engineers should consider when overcoming unanticipated boiler room setbacks, common calculations and considerations regarding NFPA 92, and much more.