Hansen Technologies Corp. , Burr Ridge, Ill., has promoted Jeffrey W. Nank, formerly vice president of sales and marketing for Hansen, to president.

Hansen Technologies Corp. , Burr Ridge, Ill., has promoted Jeffrey W. Nank, formerly vice president of sales and marketing for Hansen, to president. Nank succeeded Jeff Markham in January. Nank assumes the role with more than 18 years of experience in the refrigeration industry, having previously held senior management positions with several industry leaders, including United Refrigeration, Evapco and Baltimore Aircoil Co.

Hansen Technologies Corp. , Burr Ridge, Ill., has promoted Jeffrey W. Nank, formerly vice president of sales and marketing for Hansen, to president. Nank succeeded Jeff Markham in January. Nank assumes the role with more than 18 years of experience in the refrigeration industry, having previously held senior management positions with several industry leaders, including United Refrigeration, Evapco and Baltimore Aircoil Co.

Colville, Wash.-based Colmac has promoted W.C. “Cam” Buffington to president and chief operating officer of Colmac Industries Inc. He replaces Scott McMillan, who will remain as CEO and chairman, a position he has held since the retirement of his father, Roger McMillan, in 2005. Buffington will be the first president of Colmac Industries other than a McMillan since Jerry McMillan founded the company in 1957. Buffington has worked for Colmac Coil for more than 15 years and held the position of vice president since 1996.

Also, Colmac Coil Manufacturing has promoted Joe Fazzari to sales and marketing manager. He will oversee the Colmac sales engineering and marketing departments as well as the corporate network of manufacturer's representatives.

Quality Cryogenics, Jasper, Ga., has promoted Michael Dewey to sales manager. Dewey, who has served as project engineer and sales application engineer at Quality Cryogenics since 2000, will be responsible for managing the sales and marketing programs and technical sales staff. Also, he will maintain his technical sales responsibilities. Quality Cryogenics supplies vacuum-insulated piping solutions.

John Galyen was named president, sales and marketing of Danfoss Refrigeration & Air-Conditioning in North America. He will be responsible for continuing the division's strategic growth in this region and will report to Leif Flojgaard, senior vice president, global refrigeration and air conditioning marketing and sales.