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HVAC Product/Literature/Software


The company’s V77 Sourcebook showcases a comprehensive selection of test, measurement, control, and calibration equipment from leading manufacturers.
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This buffer tank application and sizing guide describes pertinent applications, offers sizing guidelines, and specifies the tanks that will be required for the vast majority of commercial systems.
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This four-page brochure features the company’s PXM309 Series high accuracy pressure transducers and transmitters. Included are product photos, features and benefits, a specification chart, dimensional drawings, and ordering information by available model.
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This brochure illustrates the location of key flow measurement points in a primary/secondary loop chilled water system. Included are schematic drawings, a sample meter schedule, product photos, and information on each component of the system.
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The company’s two-stage infrared heaters are designed to shrink operating costs by 40% to 75% while improving comfort and air quality in commercial, industrial, and agricultural buildings.
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The TID centrifugal inline fan is available in diameters ranging from 12 through 24 in., with capacities ranging to 4,258 cfm.
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The LPSI/LPS2 Series ultra low-pressure sensors measure +/- 0.1 in. H2O. Based on a MEMS thermo-anemometer, the LPSI/LPS2 Series infers differential pressure from a nano-liters per second gas flow through an integrated airflow channel.
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The Aston dual hydronic units are available in 8- to 15-ton capacities. The unit’s cabinet is fabricated from heavy gauge steel for long-lasting performance.
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The VARIOspeed® VFD is designed specifically for pressure control applications. As the flow and head conditions change in the pumping system, the VARIOspeed® VFD is able to automatically control the pump speed and maintain a constant discharge pressure.
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The K-Beam® high-sensitivity, low-noise MEMS capacitive accelerometer family is designed to support single axis and triaxial measurement requirements.
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ES Gallery: Snapshots & Systems

Check out highlights from projects featured in our magazine this year!

Engineered Systems Magazine


2015 January

Check out the January issue of ES with features on commercial kitchen exhaust ducts, doubling energy productivity, pressurization smoke control systems, and more!
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Learn from our experts how to evaluate job opportunities, market your services, sell a Walk-through Survey, target areas for an Energy Audit, calculate energy savings, do retrofit work, and win continuing contracts for retrofit work.

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Clear Seas Research

Clear Seas Research ImageWith access to over one million professionals and more than 60 industry-specific publications,Clear Seas Research offers relevant insights from those who know your industry best. Let us customize a market research solution that exceeds your marketing goals.

Tomorrow's Environment Podcast

This series from longtime columnist and chronic forward-thinker Howard McKew covers a lot of ground -- from retrocommissioning to systems training, on toward checklists for drawings and tips for meeting minutes. Click HERE to be taken to the podcast page!


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