NATE’s biggest rollout last year was its CHP-5 certification pathway.

The "magic number" 1.08 is convenience factor. It is a bunch of math combined into one factor as a shortcut, although sometimes more precise calculation is better.

In this month’s troubleshooting situation, the equipment that needs servicing is a split system and the refrigerant flow control is handled via an EEV.

Lack of following these general piping guidelines will result in either a failed compressor or a system not operating at its rated capacity.

Summer is almost here, and as part of the seasonal commissioning process, technicians should inspect the evaporator coil and clean it if necessary.

Don’t assume equipment capacity or conditions. Instead, do some digging and find the tables for the equipment you install and service.

Jason Obrzut, director of industry standards and relations for ESCO Group, discussed the basics of safely servicing A2L equipment.

The key to differentiating yourself and selling the right solution is having the data to credibly explain issues and the confidence to solve problems.

The customer is complaining that the temperature inside their small convenience store won’t get comfortable in the warmer part of the day.

Contractors can help their food retailer customers reduce the amount of refrigerant leaking from their refrigeration equipment.