There never has been and never will be just one In the mid 1750s, Ben Franklin experimented with using vacuum to evaporate liquid ether, and he recorded a significant temperature…
The chemical designation CFC, representing chlorofluorocarbons, should be familiar to anyone in this business. It’s the chemical used as the root of the old R-12 refrigerant that was phased out of mobile A/C use in the early to mid-1990s.
1) What is HFO-1234yf?
HFO-1234yf is a chemical refrigerant that will be used in new cars in place of R134a.
Over the last few years, due to trends in styling, many newer cars do not have conventional grills up front. Very often, a closed panel resides, or the hood extends down to where a grill would have been. But all vehicles still depend on air passing through the radiator to provide engine cooling, and also for A/C system operation.
This particular cabin air filter came from a Volvo class 8 truck and it hadn’t been changed for three years! It was retired in favor of a replacement. We wanted to share this photo with you to show you how cabin air filters do their job
The water pump is the heart of the cooling system. It circulates the coolant through the engine, radiator and heater core. These days, certain vehicles (like some SUVs, vans and most hybrids) often have more than one water pump, and the auxiliary pumps are usually run by electric motors and controlled by a computer.
/C system odors typically result from uncontrolled growth of bacteria and other microorganisms in the evaporator part. Nasty little beasts like aspergillus, cladesporium and penicillium grow on cooling coils and other areas. How do these beasts get there?
They are naturally present in outdoor air and are drawn into the system through the evaporator during system operation.
A 1990 amendment to the Clean Air Act has forever changed the way air conditioning systems are serviced. It is believed that the release of CFC-12 to the atmosphere is responsible for depletion of the earth’s ozone layer.
