Motors, Drives + Variable Speed: Page 1. THE HVACR CONTRACTOR’S WEEKLY NE WSMAGA ZINE SINCE 1926 December 8, 2014 | $5.00 | Visit us online at www.achrnews.com, Twitter, Facebook + LinkedIn Background Checks: Legal, Moral? I By Nicole Krawcke Of The NEWS Staff fyi hvac briefs n today’s world, most job applicants expect to sign some sort of disclosure that allows a potential employer to run a background and/or credit check before an employment offer is made. In fact, percent of organizations reported they con-duct criminal background checks on all job candidates, according to a Society for Human Resource Management (SHRM) survey. However, conducting those blanket background checks could land employers in legal hot water, so to speak. The U.S. Equal Employment Oppor-tunity Commission (EEOC) claims gen-eral exclusion of job applicants based on criminal background checks violates Title VII of the Civil Rights Act, and it has taken legal action against companies for doing so, most recently against Dollar General and BMW Mfg. Co. In the HVACR industry, many contracting com-panies consider background checks a requirement as their employees spend a significant amount of time in customers’ homes. Mary Jean Anderson, owner, Anderson Plumbing, Heating, and Air, El Cajon, California, takes customer protection and safety very seriously and has one of the most strin-gent background checks in the industry. According to Anderson, her background check includes drug testing, a personality profile, a criminal background check, and a • See BACKGROUND | page 7 Commercial Contractors • A.O Reed & Co. (San Diego) ser-vice plumber David Schwersensky received the Everyday Hero Award from the Mechanical Service Con-tractors of America (MSCA). • Comprehensive Energy Services Inc. (Orlando, Florida) received two Associated Builders & Contractors (ABC) Eagle Awards for its design-build HVAC plumbing and special effects work on “Transformers: The Ride 3D” at Universal Studios Florida. • Mason Mechanical (Mesa, Arizona) is now offering commercial heating and cooling services. • Burns Mechanical Inc. (Horsham, Pennsylvania) appointed Rob Komor-owski senior service account manager. Manufacturers • Tecumseh Products Co. (Ann Arbor, Michigan) named Mitchell Quain to its board of directors. • Hypertherm’s (Hanover, New Hampshire) chief financial officer, Mary Bihrle , will assume man-agement team responsibilities for Hypertherm’s Information Services Function by year-end. Continued on page 4 Tips for Testing and Diagnosing Faulty Compressor Motors T By Jen Anesi Of The NEWS Staff he compressor is often considered the heart of the refrigeration system as well as one of the major electrical energy users, and the compressor’s motor is a key part of that equipment. Keeping the compressor running efficiently ensures the entire system will be more productive. But, should a compressor fail, the entire system will fail, and knowing how to properly test, diagnose, troubleshoot, and maintain that equipment will ensure minimal downtime while preventing future failures. Why Test? In order to determine the exact cause of a compressor malfunction, manufacturers say thorough and accurate diagnostics are a must. “Testing is important to confirm proper operation of all three system prime movers — the compressor, the fan, and the blower,” said Jerry Edwards, manager, electric engi-neering and motor technology, Bristol Com-pressors Intl. Inc. “This will help avoid operational issues generated by improperly performing equip-ment and achieve the maximum lifespan of each component and the system itself.” In hermetic compressors, which are the most common type of compressor today, the motor itself cannot be accessed easily for testing, said Patrick Pride, field system engi-neer, Danfoss. “However, several electrical checks and tests can be routinely performed if a problem is suspected.” Using a multimeter to check amp draw and line voltage helps to ensure the compressor is • See MOTOR ISSUES | page 9 The The Emerson Emerson logo logo is a is trademark a trademark and and a service a service mark mark of Emerson of Emerson Electric Electric Co. Co. ©2014 ©2014 Emerson Emerson Electric Electric Company Company Tweet @achrnews www.achrnews.com EFFICIENCY for homeowners Get the latest update at Get the latest update at ac-heatingconnect.com ac-heatingconnect.com BREAKTHROUGH Greater Greater SEER SEER and and greater greater HSPF HSPF with variable speed with variable speed technology technology 25 & 31 Is Now Featured On Our Home Page! Go to achrnews.com and view real-time tweets from The NEWS and other HVACR professionals. Post comments to Twitter and include @achrnews.