Originally Posted By: JimPghPA
You have 1772 post here on BITOG and you do not understand how heat is removed from the air conditioners condenser and the engines radiator.
One does not have anything to do with the other, though if the engines cooling system is not good the heat from the AC condenser warms the air before it goes through the engines radiator, and could cause the engine to run a couple of degree hotter.
Both are affected by the amount of air moving through them, and when the vehicle is moving there is more air moving through them, compared to when the vehicle is stopped and the only air that is moving through them is air pulled through them by the vehicles fan.
When stopped the coolant temperature climbs because there is less air moving through the radiator (the black thing that transfers heat from the engine coolant to air). When the vehicle is moving air hits the front of the vehicle and causes more air to pass through the radiator.
When stopped the air conditioner blows warmer air because because there is less air moving through the condenser (the air conditioners silver colored radiator looking thing in front of the engines radiator). When the vehicle is moving air hits the front of the vehicle and causes more air to pass through the air conditioners condenser. When more air moves through the condenser it can dump more heat into that air, and the gas refrigerant entering the condenser can change to a liquid easier, and the liquid refrigerant leaving the condenser is cooler. When the cooler refrigerant changes from liquid to gas inside of the evaporator it produces a colder temperature and the evaporator removes more heat from the air passing through it, making the air blowing into the passenger compartment colder.
Also when the engines RPM's are higher than idle the water pump and AC compressor are both turning at higher RPM's compared to being at an idle.
My silver thing is black,,and my black thing is silver. Is my car going to be ok?