Subcooling can be a somewhat difficult topic for new technicians starting out in the industry. In fact, few topics garner as many questions from green techs than subcooling does.
National Technical Letter of Intent Signing Day is a successful event that has been held each of the last four years, helping thousands of students achieve their moments of glory at more than 40 schools as they prepare for rewarding careers in the skilled trades.
The condensing unit market is on the rise. According to a report published by MarketsandMarkets, the global condensing unit market is forecast to reach $23.31 billion by 2021, growing at a compound annual growth rate (CAGR) of 11.1 percent from 2016 to 2021. And there are a number of trends contributing to this growth.
Many companies are beginning to integrate capacitor testing into their regular diagnoses and maintenance practices, and I applaud this; however, it does lead to a debate on how to do it.
Unprecedented. Unconventional. Chaotic. Exhausting. Whatever adjective you use to describe them, the first 100 days of the Trump presidency were a crazy time for our nation. People across the country — and around the world — have watched and tried to understand the policy directions of this White House. What have the first 100 days meant for the HVACR industry and what do they portend for the future?
The QCC2 and QCC3 air-cooled scroll-compressor condensing units are part of Johnson Controls’ portfolio of ready-to-ship products. They are designed for applications ranging from 15-160 ton and may be paired with indoor air handlers using direct expansion (DX) evaporator coils.
Members of The NEWS’ trainer panel examined compressor valves and determined the best methods for maintaining valves, diagnosing faulty ones, and implementing proper troubleshooting techniques when they go bad.
These units feature a 70°F floating head pressure control valve and an integral subcooling circuit that allows saturated liquid to flow from the receiver to the condenser where the refrigerant is sub-cooled by ambient air.
A system with a restricted metering device will display the same symptoms as a system with a liquid-line restriction. This is because the TXV is actually part of the liquid line.
A natural refrigerant industrial refrigeration system installed at The Helix Innovation Center is helping Emerson with its innovation initiatives and serving as a learning lab for the industry.