Total System Services Inc. (TSYS, Columbus, GA) is one of the world's leading information technology processors of commercial transaction data. Its services track transactions and payments for issuers of credit
No, it's not with a whip and a chair, even though that may be tempting at times. Today's chillers are precision machines that rely on microprocessor-based electronic controls to not only provide more flexibility and reliability, but also to interact with just about any building automation system that's available.
With fuel prices making headlines regularly, users are increasingly conscious of price and supply issues. To that end, designers should keep energy contingencies in mind, too. A basic knowledge of propane-air backup systems could prove especially valuable when working with facilities using gas.