Visit our continuing education site to view free on-demand programs that go into more depth on many of the topics listed below like waterside design. Or review the Engineers Newsletter Live series—90-minute programs available to order on DVD.
Select a topic below to access the Direct Expansion Systems Engineers Newsletters:
Note: PDF versions of Engineers Newsletters require Adobe Acrobat Reader and additional download time.
Subscribe to the Trane Engineers Newsletter.
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Understanding the Selection of Direct Expansion (DX) Evaporator Coils
by Paul Solberg, 2019, vol. 48-4
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AHRI 920-Rating Standard for DX Dedicated Outdoor-Air Units
by John Murphy, 2016, volume 45-4
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100 Years of Trane History
by Mick Schwedler and Eric Sturm, 2013, volume 42-1
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Energy-Saving Strategies for Water-Source Heat Pump Systems
by John Murphy, 2007, volume 36-2
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Energy-Saving Control Strategies for Rooftop VAV Systems
by John Murphy, 2006, volume 35-4
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Split DX: Make Sure it's the Right Choice
by Paul Solberg, 2004, volume 33-3
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Hot Gas Bypass: Blessing or Curse?
by Paul Solberg, 2003, volume 32-2
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The Three E's of Geothermal Heat Pump Systems
by Mick Schwedler PE, 2001, volume 30-2
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Split Systems and Interconnecting Refrigerant Lines: As Equipment Evolves, so Must Piping Practices
by Paul Solberg, 1998 (revised Oct 2001), volume 27-4
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The DX Refrigerant Cooling Coil Conundrum
1988, volume 17-1
