Variable-speed water-source heat pump
Variable-speed water-source heat pumps by Trane now include Tracer UC400 controls.
Variable-speed water-source heat pumps from Trane now include horizontal configurations designed for commercial applications. They feature factory-programmed Tracer UC400 controls, which use proprietary algorithms specifically designed to maximize the unique efficiency potential of onboard eFlex compressor and fan technology. Trane eFlex variable-speed compressors and fans respond to changing demands by varying their speeds, optimizing energy consumption while improving reliability, acoustics, and comfort—surpassing ASHRAE 90.1 standards, even at full load. With some configurations reaching an energy efficiency rating (EER) of 40, Trane water-source heat pumps with eFlex technology deliver potential energy savings of up to 60%, when compared to conventional water-source heat pumps. Combined with the integrated controls, eFlex technology enables custom on/off cycling modes and airflow parameters, reduces wear and tear, and increases occupant comfort by providing a more consistent environment.
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Annual Salary Survey
In a year when manufacturing continued to lead the economic rebound, it makes sense that plant manager bonuses rebounded. Plant Engineering’s annual Salary Survey shows both wages and bonuses rose in 2012 after a retreat the year before.
Average salary across all job titles for plant floor management rose 3.5% to $95,446, and bonus compensation jumped to $15,162, a 4.2% increase from the 2010 level and double the 2011 total, which showed a sharp drop in bonus.