This paper highlights the system requirements and operating conditions of automatic air recirculation valves and reviews compatibility of existing calculator types with these requirements. When ...

One of the most misused features on any vehicle has to be its HVAC (heating, ventilation, and air conditioning) recirculation system. Those little switches marked with either a MAX AC label or a ...

Your car’s air conditioning has a handy feature that an alarming number of people don’t know how to use, but learning how to do so will save you fuel, improve your health, and even reduce fatigue on a ...

Have you ever been sitting there staring at the climate control panel in your car, and wondered about that interesting little button with a car and an arrow gracefully swirling around inside it? You ...