Using a set of a/c gauges put the blue hose on the low side (suction side) and the red hose on the high side (discharge side) to first check the pressures.....
Add freon if needed and keep the pressures as follows.. low side readings between 30 to 40psi and the high side between 200 to 250psi depending on the outside temperature…………….
NO! You NEVER mix refrigerants.
Connect guage & 134a freon to low pressure on the evaporator add 1lb at a time
You add refrigerant at the low pressure port but you do not add Freon. You add R134/134a. If you are having to add refrigerant then you have a leak that needs to be repaired first.
it takes 64oz or 4lbs of 134a make sure you add oil to it if u have drained it needs 11oz
You have to vacumm out the system then add a specific amount of R-134A with a refrigerant gauge
It uses R-12. But if you need to add freon you might have to retro fit the a/c unit by changing it to R-134a wich is a replacement for R-12.It takes about a can 1/2.
where do I add freon to my air conditioning unit on a 1997 chevy truck?
1st buy the kit that will flush your unit out. then check to make sure that your system has no leaks. then add 134a
A General Electric dehumidifier uses a sealed unit that does not have any way for you to add Freon to the unit. If you want to add Freon, you have to first install saddle valves to the dehumidifier.
You need to convert the AC system to R-134a type freon first (retrofit kit). Then you charge it on the low pressure side.
Find the a/c dryer and it is the low side of the a/c unit, that is where you fill the 134a Answered by Littlestown Lube & Brake Littlestown, PA 717-359-5022
In order to buy freon you need a license, therefore you shouldn't attempt to add freon. Call a contractor to service your unit.