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Fastrack - October 28, 2009

Oct. 29, 2009
FASTRACK News Underwriters Laboratories Opens New HVACR Performance-Testing Facility Underwriters Laboratories (UL), which provides compliance-testing solutions, has announced the opening of its HVACR Performance Test Center in Plano, Texas. The ...
Underwriters Laboratories Opens New HVACR Performance-Testing Facility
Underwriters Laboratories (UL), which provides compliance-testing solutions, has announced the opening of its HVACR Performance Test Center in Plano, Texas. The newly expanded facility and the introduction of new testing equipment doubles UL’s testing capacity and enhances its HVACR performance-testing capabilities. When fully equipped, the facility will house seven dual-cell psychrometric testing rooms that provide service to a variety of HVACR equipment requiring precise temperature and humidity control, including package terminal heat pumps, commercial icemakers, remote commercial refrigerated display merchandisers, and variable-refrigerant-flow multisplit equipment. [MORE]
ASHRAE Winter Conference Program to Focus on Humidity
The 2010 ASHRAE Winter Conference, which will take place Jan. 23-27 in Orlando, Fla., will focus on developments that contribute to making indoor environments sustainable in humid climates, while addressing myriad other HVACR-industry issues. The technical program will be based on the theme “Building Sustainability From the Inside Out.” [MORE]
August Heating- and Cooling-Equipment Shipment Data Released
U.S. factory shipments of gas-fired, warm-air furnaces in August totaled 171,539, a 10.6-percent drop compared with the same month a year ago. Oil-fired, warm-air furnaces for the same month totaled 4,611, a 32.1-percent drop compared with August 2008 totals. Year-to-date, gas-furnace shipments totaled 1,228,454, a 14.3-percent drop compared with the same period last year. Oil-furnace shipments year-to-date totaled 26,137, a 21-percent drop compared with the same period last year. [MORE]
Schneider Electric Announces TAC as Buildings Business
Schneider Electric, which specializes in energy-management and security solutions, has announced it has completed the transformation of TAC as its Buildings Business. Schneider Electric will offer customers a range of solutions related to power, data centers, industrial automation, building management, and security. [MORE]
October 28, 2009
Controlling Outside Airflow in VAV Systems
By KENNETH M. ELOVITZ, PE, ESQ., Energy Economics Inc., Foxboro, Mass.
Much has been written about controlling the minimum-outside-air quantity in variable-air-volume (VAV) air-handling systems. However, instead of debating the merits of various control methods, this article will discuss how to apply the mixed-air-plenum pressure method and why it works. Although most buildings require outside air to make up exhausts and meet ventilation needs, other buildings require a constant minimum quantity of outside air. In constant-volume systems, the minimum required outside-air quantity is a constant percentage of the constant supply-air quantity. Therefore, a fixed outside-air damper position provides the fixed minimum-outside-air quantity. [MORE]
MovinCool CM25 Ceiling-Mounted Air Conditioner The compact, self-contained CM25 provides 25,000 Btu/h of cooling, designed for protecting server rooms and other heat sensitive equipment against costly damage. It offers a high sensible cooling capacity, plus a 14 SEER rating, made possible by an energy-saving, variable-speed inverter compressor and inverter fan motors. Additional green features include R-410A refrigerant and RoHS compliance. The CM25 comes standard with a state-of-the-art, wall-mounted controller that offers advanced communications, monitoring and self-diagnosis capabilities. The CM25 fits in tight spaces at just 20” tall. A built-in mounting bracket, flanges and vibration isolators allows easy installation above a drop ceiling, using standard, off-the-shelf hardware. Its unique self-contained design also eliminates the need for refrigerant connections, further reducing installation costs. For more information, visit
Autodesk Webcast Experts agree that the biggest source of emissions and energy consumption both in the U.S and around the globe is buildings. Many new and existing buildings will soon be required to conform to energy and sustainability regulations. In this webcast we will explore how Autodesk MEP Engineering solutions such as Autodesk Revit MEP, can help you to create the most sustainable building system design. Register now!
The Grundfos Pump Handbook The Grundfos Pump Handbook was developed for engineers and technicians who work with design and the installation of pumps and pumping systems in their daily work. This handbook includes answers to a wide range of technical questions. Chapter topics include: Design of Pumps and Motors, Installation and Performance Reading, System Hydraulics, Performance Adjustment of Pumps, and Life Cycle Costs Calculation. Don’t miss out on this useful tool! To order your free copy, please visit www.
FREE Humidity Slide Rule Calculator Calculate relative humidity from wet bulb and dry bulb temperatures, RH at different temperatures, dewpoint, ppm, humidity ratio, pressure dewpoint and convert temperatures. Understanding the myriad psychrometric parameters and having the ability to convert and derive the other parameters sets you apart and establishes you as the Humidity Expert. Great humidity tool for field work! Click here to request your humidity slide rule calculator.
Contact information: Megan White, HPAC Engineering

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