When it comes to adding refrigerant to a refrigeration system, there are several different methods a technician can use to determine the correct amount needed. The preferred method will typically ...

This column will discuss refrigerant overcharge. The check sheet shown depicts a refrigeration system with an overcharge of refrigerant. The system is a low-temperature HFC-134a unit with a ...

Engineers have developed a technique that saves energy and servicing costs by indicating when air conditioners are low on refrigerant, preventing the units from working overtime. The new "virtual ...

In the spring and early summer, many homeowners will seek the advice of an air conditioning expert for some routine maintenance before the extreme summer heat ramps up. It’s not uncommon to hear a ...