Charging a refrigeration system is one of the most challenging and puzzling tasks a service technician will face. How much refrigerant a technician should put into a system when charging is a tough ...

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 ...

As of January 1, 2025, the EPA’s Technology Transitions Program has started to phase in prohibitions on the manufacturing of certain categories of HVAC equipment that use refrigerants with a global ...

Scientists at Germany’s Fraunhofer Institute ISE and a consortium of heat pump manufacturers have achieved a new efficiency record in their development of a low-refrigerant propane refrigeration ...

Some owners of 2006-07 Chrysler Town & Country, Caravan or Voyager minivans with rear air-conditioning systems may complain that their a/c system doesn't get cool enough or blows warm air. One likely ...

Since this column's inception, we've received a substantial number of questions concerning air-conditioning troubleshooting. Answering each one would take quite some time, but we will attempt to ...