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ONICON Inc., a Harbour Group company, designer and manufacturer of flow meters and energy measurement systems, has announced the acquisition of Greyline Instruments Inc. Terms of the transaction were not disclosed.

nomos system AG has introduced three products that the company says provide universal automation for a seamless path into the Internet of Things (IoT) market. According to nomos, its products break down the barrier of incompatible technologies, giving businesses and consumers alike full advantage of automation and IoT.

Robert Bosch North America Corp. has acquired Climatec LLC, a leading provider of energy efficiency, building automation, security, and life-safety solutions for the U.S. market. Headquartered in Phoenix, Climatec generated sales of $170 million in 2013.

EnerNOC Inc., a provider of energy intelligence software (EIS), announced that it has closed its acquisition of World Energy Solutions Inc., an energy management software and services firm that helps enterprises simplify the energy procurement process through a suite of software-as-a-service (SaaS) tools.

UTC Building & Industrial Systems, of which Carrier is a unit, has completed its acquisition of CIAT, a France-based HVAC company. UTC Building & Industrial Systems is a unit of United Technologies Corp.

Smaller-diameter copper tubes strengthened with low percentages of alloying elements can withstand the higher pressures of the new refrigerants such as CO2 (R-744), according to the International Copper Association.

The Air Conditioning Contractors of America Educational Institute (ACCA-EI) Standards Task Team (STT) has announced an American National Standards Institute (ANSI) public review period for its BSR/ACCA 14 QMref -201x, “Quality Maintenance of Commercial Refrigeration Systems” as a revised industry standard.

The U.S. Department of Energy’s (DOE’s) National Renewable Energy Laboratory (NREL) has announced the demonstration of a 45.7 percent conversion efficiency for a four-junction solar cell at 234 suns concentration. NREL said this is one of the highest photovoltaic research cell efficiencies achieved across all types of solar cells.

After only a handful of years in existence, the market for smart thermostats is now poised for growth, says Navigant Research. This market is being driven by the advent of a range of innovative devices and software that appeal to a variety of customer segments, particularly in North America and Europe.

Emerson has announced several senior management appointments and changes that are to become effective after the company’s Feb. 3, 2015 board of directors meeting. Edgar M. (Ed) Purvis has been appointed chief operating officer for Emerson. He will report to David N. Farr, chairman and CEO.