Businesses are increasingly looking to cut down energy consumption, driven by cost, sustainability initiatives, or a combination of the two.

El Nino, a combination of weak surface winds across the tropical Pacific and warmer-than-normal water temperatures in the central and eastern tropical Pacific, will affect U.S. weather patterns this winter.

Repairing reach-in coolers and freezers with electronic temperature controllers can be challenging at times.

Technicians have the choice of using either a digital or mechanical manifold gauge. Each one has its benefits and disadvantages, which is why it may pay to own one of each kind.

A split system heat pump's defrost sensor is used to detect ice buildup on the heat pump's outdoor coil. The exact way in which a defrost sensor works can vary.

Technicians should understand how heat transfer works in a refrigeration system, as well as the four laws that describe how temperature and pressure changes affect the state of refrigerant in a sealed piping system.

Service technicians need to be careful when reading the pressure/temperature chart because if they choose the wrong values, they will make mistakes diagnosing the system.

Conducting planned maintenance on refrigeration equipment is beneficial to both equipment owners and contractors. However, simple tasks can turn into problems if not done properly or without taking the necessary precautions.

Some experts expect this weather to be colder than normal, others expect it to be milder. Contractors should prepare either way.

The HVACR industry will soon be using low-GWP refrigerant blends, some of which have a temperature glide when evaporating and condensing. As these refrigerant blends change phase, there’s a change in their composition, which technicians must be able to calculate while in the field.