Trane Foundation light-commercial rooftop units are an HVAC solution that delivers what you really want: reliable performance, solid value and easy installation ­— and quick shipping, too. Why Trane Foundation light-commercial Units are simply designed and solidly built with durable key components that have been tested in the field. Numerous interviews were conducted with owners and users of rooftop units to help determine the design and features of Trane Foundation light-commercial rooftop units. Trane actively manages the manufacturing and inventory of Foundation rooftop units to ensure models are always ready to ship – often the same day an order is placed. The Trane Foundation light-commercial rooftop unit: an all-new HVAC solution designed with the help of our customers, so it delivers what you want. To learn more about how a Trane Foundation rooftop unit could be right for you, contact your local Trane account manager. Unique dual-footprint design ideally suited for replacement applications

Allows compatibility with multiple roof curbs – without expensive adapters or other modifications. /lcu for other rooftop units /unitary for more resources Brilliant air handling architecture is the SMART choice For 50 years we have been building long lasting air handlers with unfailing quality in a 100% repeatable way because we started with a highly flexible, well thought-out physical design & panel system that creates the architectural foundation of our units. ac vs heat pump costWe solved quality by engineering it into our AHU and making the design flexible with exacting tolerances whether assembled in factory or in the field.how to install portable ac unit Low Leakage – Low TCOhome ac units brands Our construction method ensures that air handlers operate at the lowest leakage levels in the business.

We design at less that 0.5 percent leakage air volume at peak airflow while at 15 inches water column. Double knife-edge opposing seals, butyl sealant and expanded infill result in a perfect sealing system against leakage and energy loss. High quality insulation accompanied by chemical and mechanical fasteners are used throughout. Integrated thermal break construction provides ideal condensation control.  Low leakage means lowest total cost of ownership. Custom Sizing – Flexible Designs Our construction method allows us to make units that fit a site and situation precisely. We routinely design and fabricate units that other manufacturers won’t consider due to challenging site conditions. Every Air Enterprises’ air handler is custom designed for your optimal needs. Custom shipping splits allow us to construct and ship units up to 400,000 CFM.  Unit size flexibility means lowest first cost capital. Exacting Tolerances – Flexible Deployment Air Enterprises unique use of custom joining extrusions to align and fasten wall panels creates tight adherence to tolerance inherently whether assembled in the factory, in the field or remotely.

The extrusions guarantee seamless fitment regardless of the site conditions, resulting in repeatability. This tight tolerance ensures that double sealed custom doors and access panels fit and operate with trouble-free precision and long-life expectancy. It is the basis of our ability to assemble as each unique project requires – via FactoryBilt® or SiteBilt® with capabilities to deploy anywhere in the world, reducing shipping costs, taxes and import duties. A Solid Foundation – Designed for Life Like the foundation of a building, the base is the beginning of the structural integrity of our units.  Self supporting design,continuously welded all aluminum bases with integrated vapor barrier, advanced insulation and individual washout drains ensure extremely long life span and reduced risk to the building envelope. No penetrations are made through the base and sections are curbed. When you place an Air Enterprises air handler on your roof, you have a reliable leak proof roof-on-roof construction that is second to none in quality.

TIL Feedback - we welcome your suggestions at til@va.gov VA Standard Details were updated in early 2009, and Div 22 and Div 26 in early 2014.  The numbering system relates to specification MasterFormat 2004.  Each detail is available in PDF and AutoCAD (DWG) formats, go to our FTP site for the DWG format drawings. Since the details are inherently graphical in nature, they are not readable by a screen reader. The links toward the top of the page are navigational, and allow the user to jump to the desired section in the formatting table below that contains the details. The columns in the formatting table indicate the detail number, the title of the detail, and provide the link to the file indicating the file type extension. Division 0 - Special Sections Division 1 - General Requirements Division 5 - Metals Division 6 - Wood, Plastics, and Composites Division 7 - Thermal and Moisture Protection Division 8 - Openings Division 10 - Specialities

Division 11 - (Hospital) Equipment Division 12 - Furnishings Division 13 - Special Construction Division 14 - Conveying Equipment Division 22 - Plumbing Division 23 - HVAC and Steam Division 26 - Electrical Division 27 - Communications Division 28 - Electronic Safety And Security Division 32 - Exterior Improvements Division 33 - Utilities VA Plaques and SealsWhen the David and Lucile Packard Foundation first began planning a new Bay Area office building in 2007, the goal was to build a net-zero energy facility that would advance its philanthropic commitment to environmental stewardship and offer a replicable model for attaining the highest level of sustainable development in a commercial office building.This summer, the Packard Foundation celebrated the completion and opening of its new, soon-to-be LEED® Platinum-certified, net-zero-energy-designed building in Los Altos, CA.The new building also represents one of DPR’s first ground-up, net-zero energy projects, as well as one of the first of its size and type in the nation.

According to a recent report and press release from Pike Research, a cleantech market intelligence firm, zero-energy buildings constitute only a small fraction of the overall green building market today. However, worldwide revenue from zero-energy buildings will grow rapidly over the next two decades, reaching almost $690 billion by 2020 and $1.3 trillion by 2035.Designed by EHDD, the David and Lucile Packard Foundation building combines a complex network of energy-efficient building systems, sustainable materials, green construction approaches and solar-energy-generating features, which together are expected to reduce energy demand by 65 percent. The remaining energy use will be offset through on-site power generation.The 50,000-sq.-ft., two-story wood and steel structure seamlessly blends into the surrounding natural environment, presenting an understated yet elegant aesthetic that belies the complexity of the project’s design components and construction processes. From the diverse array of exterior building materials, including aluminum, glazing, copper panels, stone, stone veneer and wood siding—all carefully overlaid to form a highly rated thermal exterior skin—to the highly energy-efficient mechanical and electrical systems, to the rooftop photovoltaic panels that generate on-site energy, every building component contributes to the net-zero energy goal.“

While many of these diverse systems have been used before separately, it was a pioneering effort in terms of putting them all into one place,” commented Kaitlin Murchison, senior project engineer for DPR.DPR began the project in early 2010 by deconstructing and then recycling some 96 percent of six existing structures on site prior to construction start. According to DPR Project Manager Mike Messick, the team faced a major challenge with construction of the exterior skin, which required intensive sequencing among the various trades to ensure that it was built to the designer’s specifications to help achieve the net-zero goal.“The waterproofing system, as well as the thermal insulation of the exterior skin, was really crucial and extremely complicated, because there were so many different materials and intersections coming together,” he said. To accomplish that, DPR first constructed a full-size mock-up section. “We were able to ferret out a lot of the sequencing issues of putting together such a complex skin system,” Messick said.

The complexity and innovation of the exterior also carried over into the interior mechanical, electrical and plumbing (MEP) systems. Low-energy equipment and advanced heating and cooling methods were incorporated, including a chilled-beam system. Condenser water is collected from evaporative heating and cooling towers and stored in two underground 25,000-gallon chilled-water tanks. The chilled water is then pumped through chilled beams running throughout the building, which cool the air on the spot. This system allows for much smaller air-handling units (AHUs) than are required in a traditional system.For building irrigation and plumbing, two 10,000-gallon underground tanks capture rainwater that is then reused on site, reducing total new water demand by an estimated 40 percent.Myriad other green features contribute to the efficiencies, including automatic operating shades and exterior blinds that control lighting depending on the exterior environment. All the building systems are electronically synchronized through a master “SCADA” system, which generates data that the building’s facilities manager can use to ensure operations are meeting the net-zero goal.