This troubleshooting procedure is designed to increase the accuracy of your service calls for ice machines, while decreasing the time required to identify any problems.

Rooftop units require regular visual inspection, filter changes, lubrication, and other service and maintenance regimen to keep performing efficiently. These tips will help you maintain large rooftop equipment (15 ton and above) for peak performance while actually reducing maintenance hours.

The evacuation process evicts undesirable elements from the refrigerant system. This article examines the terminology, procedures, and equipment used in the evacuation process.

In this installment of the Btu Buddy series, Bob gets a service call from the dispatcher who says a residence with a very sick lady is getting very hot. Bob needs to cool off a hot compressor and get the A/C system working quickly.

Mini-splits are gaining prominence as a choice for those who want more control over indoor comfort. But for some contractors and technicians, the proper installation of a ductless mini-split is still a confusing and muddy process.

By helping your customers apply the predictive approach to maintenance, downtime can be avoided and costs can be reduced. The advantage to the service contractor is that maintenance work can be planned and performed on a regular schedule.

Troubleshooting and servicing refrigeration and air conditioning systems can be a challenging process for entry-level or experienced technicians. Regardless of your experience, it is essential that you have a solid understanding of the fundamentals. You also need to have the right tools.

There are good reasons for purging air from your refrigeration system, operating efficiency being the main one; increased equipment lifespan is another. It’s important, however, that correct purging procedures are used.

In this second installment of the Btu Buddy series, Bob and Btu Buddy perform an emergency service call. They determine the most efficient way to repair and charge an air conditioning system for an office building.

In our approach to humidity control for air conditioning systems, we must not overlook one very basic fact: If the evaporator coil is not cold enough, it cannot remove moisture, and it will stop removing moisture at its dewpoint temperature.