Next Greenville Meeting


Program: Variable Speed Pump Control Strategies

In HVAC Distribution Variable Speed Control applications there are two basic control strategies. They are "Curve Control" and "Area Control". There are different methods to accomplish each strategy. We will take a quick look at each including "Sensorless" and their proper application.


Chris Edmondson

Chris Edmondson received his B.S. Degree in Mechanical Engineering from North Carolina State University in 1967. During his summers, he worked at Barber Coleman and Jay Johnson Controls. After graduation, he spent four and a half years as a salesman with the Trane Company. In 1971, he came to work for the James M. Pleasants Co., Inc. (Manufacturer's Representative for the ITT Fluid Handling Division) He worked as an Outside Salesman until 1978, when he was promoted to Vice President and Sales Manager till 1987. From 1987 to 2010, he has served as President of the Pleasants Company. Chris is currently CEO of James M. Pleasants Company.

Chris has served many years in the ASHRAE organization, holding positions such as Secretary/Treasurer, Vice President and President of the North Piedmont Chapter. For the fiscal year, 1985-86, Chris received the Rudy Ferguson Memorial Award (Presidential Award of Excellence). In 1985, he became a Technical Speaker to various ASHRAE chapters and he is a Distinguished Lecturer for ASHRAE. He spoke at ASHRAE's CRC Region VII meeting in 1992, Region III CRC Technical Speaker 2013 Bethlehem PA, ASHRAE 2014 NYC lecture series, ASHRAE Region IV CRC 2015 Raleigh NC, Birmingham's Region VII Meeting and many other ASHRAE events as a Technical Speaker. He held the position of Educational Activities Vice Chairman for Region IV from 1992 to 1994. In 1995 he was the Chapter Program Chairman for Region IV. He has served as Region IV DRC and on the ASHRAE Board of Directors. He has also served on the ASHRAE nominating committee. He is also an approved instructor on many USGBC GBCI LEED Presentations. His principal areas of interest are energy savings, primary/secondary variable volume systems, hydronic balance, heat transfer, hydronic systems, plumbing piping systems and central chilled water plant design.


Each program qualifies for 1.0 PDH

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