People: Eric Roberts of McQuay - North America, Glynn Crutsinger of Stiles Industrial Division of Stiles Industries, Thomas Grove Jr. of Heat Recovery Technology and Rom Mangalat of Cerro Copper Tube Co.

September 1, 2000
Eric Roberts has been promoted to the position of executive vice president, general manager, McQuay - North America (Louisville, KY).

Glynn Crutsinger has been hired as the general manager of Stiles Industrial Division of Stiles Industries, a division of Air Rover, Inc. (Tyler, TX).

Heat Recovery Technology, Inc. (York, PA) has appointed Thomas Grove Jr. as national sales manager of its team of indoor pool dehumidification specialists.

Rom Mangalat is promoted to director of quality control and technical laboratory for Cerro Copper Tube Co. (St. Louis, MO).

The president of Johnstone Supply (Portland, OR), Jerry Schultz, retired after a tenure of 22 years. Gary M. Daniels is Schultz' successor to the position.

Fredrich Air Conditioning Co. (San Antonio, TX) expanded its Hvac Sales Division and has made several appointments. Joe Kerzich has been named Midwestern territory manager, central zone. Gregory Davis is appointed zone manager, Central U.S. James M. Keefer is now Zone Manager, Western U.S.

Trade Service Organization (San Diego, CA),, a provider of information solutions to construction industry trading partners, announced that Michael Long has joined the company as regional manager-Great Lakes region.