One of the worst enemies of a compressor is liquid refrigerant, so technicians should make sure the refrigeration system has proper superheat in order to protect the compressor from damage that can occur from flooding or slugging.

Proper evacuation of a refrigeration system is an important part of repairing or installing a unit, and the gas ballast in the vacuum pump helps improve the process.

Technicians need to make sure that the TXV is not underfeeding refrigerant to the refrigeration or air conditioning system due to a restriction, which can be caused by a number of factors.

Food retailers have identified the top refrigerant leak issues in refrigeration equipment and developed specific equipment specifications that could help mitigate those leaks.

Making sure the TXV is metering the right amount of refrigerant into the evaporator and is not overfeeding the coil is one way technicians can help their customers’ refrigeration and air conditioning systems operate safely and more efficiently.

Technicians should pull the necessary vacuum to ensure the system they are working on is properly evacuated.

Washington state is currently figuring out how to implement legislation that establishes maximum GWP thresholds for HFC refrigerants used in new stationary refrigeration and air conditioning equipment.

Liquid line restrictions cause the evaporator, compressor, and condenser to be starved of refrigerant, causing performance problems in refrigeration systems.

Locating the source of a refrigerant leak in a self-contained reach-in cooler or freezer and repairing it may be difficult, but technicians should always attempt to find the source.

An evaporator can be cold but inactive, causing warm refrigerated space temperatures.