Thursday, January 10, 2013
ATLANTA – Addendum cs to ANSI/ASHRAE/IES Standard 90.1-2010, Energy Standard for Buildings Except Low-Rise Residential Buildings, is open for advisory public review from Jan. 4-Feb. 3, 2013. The addendum proposes changes to definitions for computer rooms and data centers in Standard 90.1 to create a distinction between facilities covered by 90.1 and those which are intended to be under the scope of ASHRAE Standard 90.4P, Energy Standard for Data Centers and Telecommunications Buildings, proposed by ASHRAE in late 2012.
The definition proposed for computer rooms more closely aligns with ASHRAE Standard 100, Energy Efficiency in Existing Buildings, and the U.S. Energy Information Administration's Commercial Building Energy Consumption Survey (CBECS). In addition, the definition is consistent with Uptime Institutes' "Tier Standard: Topology" and the Telecommunications Industry Association ANSI/TIA-942 class rating for low-risk Tier I data centers. High risk data centers such as those designed as Tier II or greater per ANSI/TIA942 or ones with mechanical cooling system redundancy are expected to be covered by the 90.4P standard now under development.
Steve Skalko, chair of the Standard 90.1 committee, said with the development of Standard 90.4P feedback is needed from the industry to clarify the scope and definitions of each standard. Energy conservation requirements for high risk data centers, initially covered by Standard 90.1-2010, are expected to be detailed in the 90.4P standard. Computer rooms, which can include low-risk data centers, would remain under the scope of Standard 90.1.
"The costs and approaches used in determining appropriate HVAC applications used to achieve energy efficiency are different," he said.
Computer rooms, which by the proposed definitions include low-risk data centers, are usually associated with electronic equipment spaces that are not considered risks and therefore money is typically not spent to install levels of component and systems redundancies. Computer rooms may be ancillary functions and add loads in a larger building and often are served from the same central cooling plants.
Computer rooms are designed to provide local data processing and information storage for in-house end users and clients, which the owner has deemed very low risk. Risk choices are made to reduce total life cycle costs associated with not only system selection and operation, but potential failures, business interruptions, continuity plans and overall company specific business model features like staffing requirements, according to Skalko.
By comparison, data centers designed as Tier II or greater per ANSI/TIA942 or ones with mechanical cooling system redundancy carry more risk, he said. Industry studies indicate downtime associated with such risk can cost tens of thousands of dollars a minute, with the potential to negate both past energy savings and future business viability in a single act. The demand for data centers has grown, as the electronic equipment needs have evolved with the huge demand for data processing services and storage in the age of digital devices.
A data center has the function to support the electronic equipment that commonly provides services to outside or external clients, hence the heightened awareness of risk and risk mitigation approaches employed. Data centers can support everything from an individual enterprise all the way to hosting services on the internet and must provide maximum operational run time on a 24-7 basis. These facilities are built with multiple levels of component redundancy, providing at least an N+1 mechanical cooling capacity redundancy, if not greater, as well as operational resiliency (increased staffing hours and expertise), Skalko said.
To comment or to learn more, visit www.ashrae.org/publicreviews.
ASHRAE, founded in 1894, is a building technology society with more than 50,000 members worldwide. The Society and its members focus on building systems, energy efficiency, indoor air quality, refrigeration and sustainability within the industry. Through research, standards writing, publishing and continuing education, ASHRAE shapes tomorrow's built environment today.
Metro Lighting Launches Recycled Glass Line Through Kickstarter
Berkeley, California - January 10, 2013 - Metro Lighting, a sustainable business leader, is launching a line of recycled glass lamps and fixtures through Kickstarter.com. The shades are made from clear bottle glass that is crushed, melted, and poured into molds. Metro Lighting builds the lamps and fixtures in their workshop in Berkeley, California.
"We designed a custom mold for lighting after we found a studio that could cast recycled glass," says Lawrence Grown, who owns Metro Lighting with is wife and business partner Christa Rybczynski. Both hold degrees in architecture. "The glass has a wonderful texture that is evidence of the casting process," says Rybczynski, "Each shade is a beautiful work of illuminated art." The shades are offered in seven colors, each available clear or sandblasted. LED light engines pair well with the sandblasted shades.
Metro Lighting (metrolighting.com, facebook.com/metrolightingCA) has been an Alameda County Certified Green Business since 2008. A rooftop solar array provides 100% of the energy needs for their retail showroom and manufacturing facility in Berkeley, California. The showroom features many fixtures built from repurposed items including glass insulators (from telephone poles), liquor bottles, bicycle rims and gears, and traffic light lenses in green, yellow, and red.
Metro Lighting is the recipient of multiple awards, including Acterra's Business Environmental Award for Sustainable Built Environment, Residential Lighting Showroom Of The Year for Exceptional Community Involvement, and Best Green Business in the East Bay. Most recently Metro lighting received a Berkeley Benchmarking Award from the East Bay Environmental Network presented by Assemblywoman Nancy Skinner in November of 2012.
Founded in 1993, Metro Lighting creates beautiful sustainable lighting, handcrafted in California. Their design-build studio moved the world towards a zero-waste culture by providing sustainable lighting fixtures intended to delight customers for generations. Their goal is to shift the lighting industry away from disposable products made by disposable labor overseas, to sustainable lighting made by skilled artisans in the United States, as noted in the slow goods movement. Metro Lighting simultaneously provides customers with the best products while supporting local skilled artisans in California.
# # #
Tuesday, January 08, 2013
Lennox adds new high-efficiency models to Landmark® rooftop unit line
Dallas, TX – (January 8, 2013) – In order to offer customers increased energy savings and overall lower utility costs, Lennox has added high-efficiency 7.5- to 10-ton, gas/electric and electric/electric models to its existing line of Landmark® rooftop units. Designed for use in new construction or for the replacement of an existing rooftop unit, high-efficiency Landmark® units offer customers increased energy savings and reliability, along with the flexibility of field configuration.
With the addition of Lennox' optional MSAV supply fan technology, Landmark units are up to 25% more efficient.* This factory-installed technology uses a variable frequency drive to deliver supply fan power savings of up to 61% while still meeting comfort requirements. Additionally, high-efficiency Landmark models may help businesses qualify for state and local utility rebates.
"Our high-efficiency Landmark models help businesses reduce energy use without sacrificing comfort," said Mike Ray, Senior Rooftop Unit Product Manager, Lennox Commercial. "We have also built added flexibility into our entire Landmark product line, providing installers with a solution for their needs at any job site, and customers with a unit that fits many applications."
The Landmark unit's flexible design offers more than 100 field customizable options and over 30 features designed to reduce installation and service time. This includes an isolated compressor compartment for easier, more accurate charge confirmation; a slide-out blower that offers quick belt tensioning, adjustment or replacement and easier cleaning of the blower wheel; and an accessible gas compartment that simplifies analysis and service.
These new Landmark units feature the Environ™ Coil System, which helps makes the unit easier to service and clean—a single service technician can clean the coil—reducing costs associated with maintenance. In addition, the all-aluminum coil is more resistant to corrosion, increasing the unit's reliability.
Coupled with the release of the 7.5- to 10-ton high-efficiency Landmark rooftop models is a company-wide expansion to address emergency replacement markets, designed to increase speed and availability of products to the light commercial rooftop industry. Many commonly used, standard- and high-efficiency Landmark units are now stocked and available the same-day in many major markets. These models are available to 98% of North America within 48 hours or less through local Lennox commercial warehouses and select Lennox PartsPlus™ stores. To further expedite the emergency replacement process, Lennox offers a dedicated hotline to provide contractors quotes and availability within minutes.
Landmark units are available in 3- to 25-ton gas/electric and electric/electric and 3- to 20-ton heat pump configurations, with efficiency ratings up to 13 SEER, 14 IEER and 12.7 EER.
Warranties offered on the Landmark rooftop unit include a 15-year limited warranty on the stainless steel gas heat exchanger; a 10-year limited warranty on the aluminized gas heat exchanger; a 5-year limited warranty on the compressor; a 3- year limited warranty on the Environ™ coil system and a 1- year limited warranty on all covered components.
*Part load, IEER improvement. Comparing standard 11.2 IEER system to optional MSAV 14 IEER system.
About Lennox Industries Inc.
A worldwide leader in residential and commercial heating and air conditioning systems, Lennox Industries Inc. is based near Dallas, Texas. Deeply committed to helping consumers and businesses reduce energy needs and lessen their environmental impact, the company offers a wide range of resources for improving efficiency, including a selection of ENERGY STAR® qualified products. Lennox Industries is a subsidiary of Lennox International Inc. and is a global leader in the heating, ventilation, air conditioning and refrigeration markets. Lennox International stock is traded on the New York Stock Exchange under the symbol "LII." To learn more about Lennox International, visit www.lennoxinternational.com. To learn more about Lennox Industries, contact a Lennox sales representative or visit www.lennox.com.