The year 2022 marks the 50-year anniversary of Trane’s Engineers Newsletter (EN) publication.
Since its inception, Trane has strived to provide objective and useful information to engineers and contractors. Early examples include numerous bulletins covering new systems and equipment. In addition, the company began publishing the Trane Air Conditioning Manual in 1938.
In June 1972, Trane began publishing the Engineers Newsletter covering a wide variety of topics that are immediately relevant to the consulting engineer in a timely fashion.
In the 1970s, many newsletters discussed how to save energy, the newly published ASHRAE Standard 90-75 (predecessor to the current Standard 90.1), energy modeling with new mainframe-based software, and new variable-air-volume systems.
In the 1980s, major topics included primary-secondary chilled-water systems, the new concepts of variable-primary flow chilled-water systems, thermal storage systems, microelectronics and direct digital control, and more.
The 1990s brought continued discussion on variable-primary flow chilled-water systems, system optimization (critical zone reset, chiller-tower optimization), Standard 62, and acoustics.
Over the past decade, discussions continued regarding energy efficiency, including chiller efficiency, VAV optimization, air- and waterside economizing, while also providing regular updates on common ASHRAE standards.
