Adding to AC on 330

[grady33]

AC isn’t as cool as it used to be and wondering if there is an easy way to add refrigerant?

 

[ocdansar]

It should have ports on it. You really need to hang gauges and check your pressures. I would make sure you have good water flow through the system first.

 

[grady33]

It should have ports on it. You really need to hang gauges and check your pressures. I would make sure you have good water flow through the system first.

Very good water flow. I’m wondering if those kits you buy in store to recharge cars will work?

 

[ocdansar]

The type and amount of Freon will be on a tag on the compressor. The year of manufacture will determine type of Freon .

 

[fsc60]

I would not use the freon kit from a store. Im a mechanic and do AC all the time. First determine the type and amount. To do it correctly you would need to evacuate the system with a vacuum pump and create a vacuum of 25-28 inches of vacuum in the system. Then introduce the freon and possibly a little Compressor oil. You will need a set of gauges to see your pressures. Not a do it yourself job. If you just add freon it wont work well. There is air in the system that has to be removed first, thats why the vacuum pump.