In Columbus, Ohio, a six-story law-school building requires cooling year-round.
"A lot of buildings we can cool with outside air," Mike Klingler, service manager for HVACR contractor Farber Corp., said. "When we get down to 50 to 52°F and below, we can just draw that outside air in and use it for free cooling. But because of the setup of the law-school building, they had to run one of the chillers even when it was 20 to 25°F outside. Because of the duct distribution system, we couldn't rely on outside air in certain areas of the building."...More