If the AC unit has a condensor check its pressure and make sure that it is working properly with the unit, I.E. condensing the warmer coolant quickly back to a useable form, otherwise recharging the refrigerant is pointless. Also, check your heater valve. It could be that your AC is working fine but when your vehicle gets warmed up then you're heating your nice cool air before you get a chance to enjoy it!
The refrigerant is for the entire air conditioner system not just for the condenser units. First, this question is not specific! There is whole bunch air conditioner condenser. Each manufacture design different condenser capacity. I might come back to this question.
It contains no Freon. Freon has not been used since 1995. It contains R134a. If it needs recharging then you have a leak. It is illegal to add refrigerant to a system with a leak without first repairing the leak. As you cannot do this yourself, you need to take it to a professional for repair and recharging.
First thing to check is if it's icing over. If so, low on fridgerent.
He got the idea from refrigeration so refrigerant parts were modified.
First check to see if the system has freon in it and if not then you have a leak but if it does then you will need to check the electrical for the a/c system.......
First thing take the EPA test to prove you know how to Handel refrigerant in a safe and responsible manner, receive your certification then go to a HVAC&R supply house present your certificate and purchase the correct refrigerant .
You do not recharge coolant, you replace it. If you are referring to refrigerant in the A/C unit, then first you need to have the leak repaired. It would not need recharging unless it is leaking. It is illegal to add refrigerant to a system that is leaking without repairing the leak. This is a job for a professional with the proper tools and knowledge. This is not a DIY repair. The cost depends on where the leak is.
Something like that happened to me and it was the alternator so I had to change it. ----answer---- When your vehicle is moving, more air is being moved across the condenser, which in turn cools the refrigerant. Could be that the system is incorrectly charged. I would have that checked first.
It came from the factory with R12 Freon. Due to the high cost of R12, I suggest you convert it over to R134. Any good A/C shop can do this. Remember, it is illegal to release refrigerant into the atmosphere. It is also illegal to add refrigerant to a system with a leak without first repairing the leak.
Because it uses air it sucks from the outside of the building, only it cools it down first before blowing it out.
One reason is engine overheating - check your temp gauge and coolant as a first step.
The most common thing that will cause this will be a vacuum leak and you need to check all of the vacuum lines first..................