Controller Simplifies Setup While Decreasing Number of Costly Callbacks and Time-Intensive Repairs for Contractors
ST. LOUIS, July 25, 2011 – Emerson Climate Technologies, Inc., a business of Emerson (NYSE: EMR) is pleased to announce the launch of its new Electronic Unit Controller for Copeland® condensing units with low pressure controls. The first-of-its-kind unit controller represents Emerson’s continuing commitment to enhance condensing unit and commercial refrigeration system performance with innovative technology.
Emerson’s Electronic Unit Controller is an integrated electronic pressure control solution to replace traditional mechanical low-pressure control switches, while enabling a smarter condensing unit. Electronic pressure-sensing accuracy maintains a tighter low-pressure control tolerance than mechanical controls to help decrease costly callbacks, while the easy-to use LED interface allows field setup time to be reduced to less than one minute. “The Electronic Unit Controller from Emerson was easy to install and set,” said Dan Whitten, General Manager of Rosetown Central Refrigeration & Air Conditioning Ltd. “Our technician was very impressed by the accuracy of the pressure readings compared to his service gauges.”
Service technicians often spend a lot of time adjusting traditional mechanical pressure controls on condensing units. “They apply and read their gages, make adjustments, then have to wait for pressures to settle before making final adjustments to dial in the correct setting,” said Jim Mozer, vice president of marketing and general manager of Integrated Products at Emerson Climate Technologies. Once set, these coarse adjustments tend to drift away from initial set-points, requiring return service calls. “By using suction pressure transducer sensing, the unit controller enables setup time to be reduced from up to 25 minutes down to one minute or less, plus it maintains the set-point more accurately than mechanical controls, ” according to Mozer.
In addition to providing precise control, the Electronic Unit Controller features built-in system protection to prevent costly compressor failure and improve operator uptime. Emerson has found that more than 35 percent of compressor failures are caused by overheating as a result of dirty or plugged condensers, fan failures, or leaks from typical pressure-control cap tubes that result in loss of refrigerant charge. The new unit controller eliminates the use of cap tubes and enables smart discharge line temperature protection to shut down the compressor in the event of high return gas temperatures or high compression ratios.
To help contractors more quickly and accurately troubleshoot and diagnose field issues, the Electronic Unit Controller shows current suction pressure, plus stores alarm occurrence codes, discharge temperature trips, and service run time information, all displayed on a large, easy-to-read LED panel. The controller also features smart fan cycling control through mid-coil temperature sensing on all dual-fan units.
The controller is designed to work with any refrigerant, including R-22, R-404A, R-507, R-134a, and R-407C, giving contractors the flexibility to select the right refrigerant for the application. For more information on the Electronic Unit Controller available from Emerson Climate Technologies, visit www.EmersonClimate.com/electronicunitcontroller.
Emerson (NYSE: EMR), based in St. Louis, Missouri (USA), is a global leader in bringing technology and engineering together to provide innovative solutions for customers in industrial, commercial, and consumer markets through its network power, process management, industrial automation, climate technologies, and tools and storage businesses. Sales in fiscal 2010 were $21 billion. For more information, visit www.Emerson.com.
About Emerson Climate Technologies
Emerson Climate Technologies, a business segment of Emerson, is the world’s leading provider of heating, air conditioning and refrigeration solutions for residential, industrial and commercial applications. The group combines best-in-class technology with proven engineering, design, distribution, educational and monitoring services to provide customized, integrated climate-control solutions for customers worldwide. Emerson Climate Technologies’ innovative solutions, which include industry-leading brands such as Copeland Scroll and White-Rodgers, improve human comfort, safeguard food and protect the environment.
For more information, contact:
Fahlgren Mortine Public Relations