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The UL 489 B1NQ miniature circuit breaker is a direct replacement for the common miniature circuit board (MCB) when paired with the optional surface mount. This recyclable, quick-connect breaker is available in three curves (B, C, and D), ranges from 0.5-63 A and is compliant with UL/CSA/IEC standards for branch circuit protection in commercial and residential applications.

It’s not unusual for one to wake up with a headache on Jan. 1, but the headache that greeted the geothermal industry on Jan. 1, 2017, wasn’t caused by excessive late-night celebration. On that date, geothermal systems lost their 10 percent investment tax credit under Section 48 of the Internal Revenue Code (which covers energy tax credits).

While geothermal heat pumps may initially seem complicated to service or troubleshoot for some technicians, with the right training, they will find that these systems are similar to conventional air-source heat pumps.

Rick Haller, CEO of Lititz, Pennsylvania-based Haller Enterprises Inc., jokes that he got his start in the HVAC industry at the ripe age of 16 because the labor laws were different than they are nowadays. In 1981, at age 23, he had left that company and started his own business, operating out of his garage.

While residents and business owners in Texas, Louisiana, and Florida struggle to rebuild their lives following the path of destruction left by Hurricanes Harvey and Irma, local HVAC contractors and manufacturers have an opportunity to step in and do what they do best — provide comfort.

Often considered to be an affordable, reliable heating and/or cooling system for a variety of commercial buildings, the standard rooftop unit used to come with a basic thermostat that is limited to turning the system on or off. The advent of new controls has changed all of that by allowing rooftops to monitor operation, analyze conditions, and make real-time decisions that can optimize performance.

The NEWS spotlights the industry’s latest commercial heating products in the following photo feature. The manufacturers provided us with brief descriptions of the features included with each product. For more information, please contact the manufacturers or their distributors.

Effective weld purging is only achieved by making sure that oxygen is displaced from the purge zone prior to and during welding. Any residual oxygen can cause significant loss of corrosion resistance and a reduction in joint strength. It is therefore essential to seal the pipe on either side of the joint and maintain this seal throughout the process.

The high failure rate or inability to grow beyond a few trucks is due primarily to an entrepreneur’s lack of business training. The technical skills acquired, which are, of course, an asset, soon become a liability in terms of not having mastered business skills necessary for success and profitability.