Rooftop geothermal heat pump
The Tranquility Rooftop (TRE) Series geothermal heat pump by ClimateMaster is available in 3- to 20-ton capacity units.
ClimateMaster provides the Tranquility Rooftop (TRE) Series geothermal heat pump is available in 3- to 20-ton capacity units. The TRE Series offers the option of introducing a fixed amount of outside air year-round or employing a modulating economizer to provide no-cost cooling when outdoor conditions are favorable. TRE units exceed ASHRAE 90.1 efficiencies and are designed for an extended range of source water temperatures, making them suitable for closed-loop or ground source closed-loop systems. With the ground loop conditions, the efficiency can range from 15 to 18 EER. The TRE Series unit includes high-efficiency scroll compressors and belt drive monitors. The TRE Series is designed to be mated to an ERV unit for maximum energy efficiency in a make-up air unit.
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Annual Salary Survey
After almost a decade of uncertainty, the confidence of plant floor managers is soaring. Even with a number of challenges and while implementing new technologies, there is a renewed sense of optimism among plant managers about their business and their future.
The respondents to the 2014 Plant Engineering Salary Survey come from throughout the U.S. and serve a variety of industries, but they are uniform in their optimism about manufacturing. This year’s survey found 79% consider manufacturing a secure career. That’s up from 75% in 2013 and significantly higher than the 63% figure when Plant Engineering first started asking that question a decade ago.