The July issue of PM Engineer features the rising demand for high-efficiency water heaters, Non-traditional pipe for a non-traditional college, and more!
With a considerable volume of contradictory information in circulation regarding the application of different technologies for HVAC systems, this article seeks to explain some of the technical aspects of variable refrigerant flow (VRF) systems, and offer comparisons on the basis of cost and performance to more standard hydronic systems.
"We know that not everyone is a 'traditional' student," reads the website for San Jacinto Community College. "Whatever your dreams, whatever your goals, whatever your unique situation, San Jacinto College is here with all the tools you need to put you on the pathway that leads to your vision of success."
Legionnaires’ disease, first identified in 1976, is caused by water contaminated with Legionella pneumophilia which, when disseminated in droplets into the atmosphere and inhaled, may infect a person.
Last year, during the initial phases of the COVID-19 pandemic, I wrote a couple of articles that touched on the subject of organizations coming up with solutions during chaotic situations.
Over the last 30 years, I have attempted to bring the readers into the middle of the code change hearings to understand the process as plumbing and mechanical code requirements are developed and implemented.
The publication was created to be used alongside ANSI/ASHRAE Standard 62.1-2019 and explains how to apply the criteria set out by the standard, by providing examples, sample calculations and best practices for professionals concerned with ventilation and indoor air quality in nonresidential buildings.
KAI was selected among hundreds of companies in the Greater St. Louis area. This is KAI’s first time receiving the award from The St. Louis Post-Dispatch Top Workplaces.
After years of rigorous testing, the Naval Sea Systems Command (NAVSEA) has approved the use of MegaPress CuNi mechanically attached fittings in sizes 1/2-inches to 2-inches in surface combatants for a variety of systems, including chilled water, potable water, electronic freshwater cooling, seawater cooling, washdown countermeasures, drainage and many others.
Tub-to-shower conversion kits from QuickDrain USA help contractors economically adapt to numerous commercial jobsite irregularities, including unexpected plumbing configurations and structural constraints when constructing spa-like curbless or curbed showers for multifamily applications.
Emerson has launched a low-cost upgrade for electrical heat-tracing systems with its new Nelson AXPC100-CM-GP and CM-GP microprocessor-based digital controllers, engineered to accurately control, monitor and maintain the process temperatures of industrial pipes or tanks in ordinary (non-hazardous) locations.
The Grundfos UPS circulator pump with 3-speed motor gives users the flexibility to choose the correct speed for their specific application, the company states.