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Frost on an evaporator coil will prevent the correct amount of airflow across the coil. Anytime the evaporator coil experiences reduced airflow across its face, there will be a reduced heat load on the coil.

A total of 328,963 cinder blocks, 22,000 cubic yards of concrete, 5,000 tons of steel, 25 miles of total piping, 3,000 lineal feet of refrigeration pipe, 7 acres of roofing, and…

It all started as an idea by Dave Chatmon, district manager, Lennox Intl. Inc., long before he was with the company. Chatmon grew tired of his contractors missing work to attend training conferences.

Chillers, much like the rest of the HVAC world, have seen a push to increase operational efficiency. These increasingly energy-efficient products, along with the need to replace aged units, have steadily driven growth in the chiller market. In fact, the global chiller market is projected to reach $11.33 billion by 2022.

The HVAC industry is often influenced by the economy and how well the new construction and service and replacement markets are doing. However, there is another growing sector within the industry: the HVAC rental market.

There have been numerous studies that have shown regular maintenance extends the life of HVAC equipment, and chillers are no exception to that rule. But unfortunately, many building owners and facility managers defer maintenance due to budgetary constraints or other reasons, which can lead to performance issues later down the road.

Information contained in these graphs is courtesy of the Air-Conditioning, Heating, and Refrigeration Institute (AHRI).

HVAC, plumbing, and electrical service contractors let the good times roll as they descended upon The Big Easy — also known as New Orleans — in April for Service Roundtable’s 2018 Spring International Roundtable event. Contractors were met with riveting keynote speakers, powerful breakout sessions, and interesting new products and services from Roundtable Rewards Partners.