Rooftop units

RN Series packaged rooftop units, outdoor air handlers, and air-source, water-source, and geothermal heat pumps can be specified for almost any application. Available from 2 to 70 tons, all models include double-wall rigid-polyurethane-foam-panel construction with a thermal resistance of R-13, corrosion-resistant stainless-steel drain pans, lockable service-access doors, and direct-drive backward-curved plenum supply fans. Options include refrigerant-to-water heat exchangers for cooling-tower or geothermal applications, load-matching 10- to 100-percent variable-capacity R-410A scroll compressors, high-performance hydronic coils, AAONAIRE energy-recovery wheels, and modulating humidity control. Visit www.aaon.com for more information.
— AAON Inc.
Circle 1

Cottonwood filter screens

Cottonwood filter screens stop cottonwood seed, pollen, leaves, insects, and other airborne debris from fouling condensers, cooling towers, and other HVAC systems. With a service life of up to 15 years, the screens simplify maintenance and reduce energy cost, reduce/eliminate power-washing and coil cleaners, extend the life of internal air filters by up to 60 percent, and help earn Leadership in Energy and Environmental Design credits in multiple categories. Visit www.airsolutioncompany.com for more information.
— Air Solution Co.
Circle 2

Uninterruptible power supply

For large data centers and facilities, the Symmetra MW II uninterruptible power supply provides power from 400 to 1,600 kw with paralleling capabilities for increased capacity or redundancy. The units deliver efficiency greater than 94 percent at 25-percent load to full-load efficiency above 97 percent.
— APC
Circle 3

Duct liners

Fiber-free, mold-resistant AP Armaflex and AP Coilflex are “all-in-one” duct liners that reduce energy loss and protect indoor-air quality. U.S. Environmental Protection Agency-registered for air ducts, the liners provide moisture resistance and noise reduction with a noise-reduction coefficient of up to 0.60. Microban antimicrobial protection is included. Visit www.armacell.com for more information.
— Armacell LLC
Circle 4

Control-valve software

SelectPro software employs industry-standard sizing equations for the sizing and selection of Belimo control valves for hydronic and steam systems. Software capabilities include calculation of control-valve cost for any size of project, generation of valve/actuator submittal data for projects, and exporting of project data and selected products to Excel format.
— Belimo
Circle 5

Control panels

Technologic constant speed pump control panels are designed for use in both open- and closed-loop applications. The microprocessor-based control panels offer a number of standard features, such as serial communication via RS-485 port and compatibility with Modicon Modbus, Johnson Controls Metasys N2, or BACnet MS/TP. Other features include parameter backup through a “save and load” menu, a log menu that recalls events and alarms, a pump-exercise feature, and pump-purge capability. Visit www.bellgossett.com for more information.
— Bell & Gossett
Circle 6