I assume there are service valves somewhere on the unit. Unless theyve got some new advanced way to charge it?
If it needs a charge you probably have a leak in the system. It would be in your best interest to have the professionals service your ac system.
The recommended way to charge your vehicles ac system is to use a pressure gauge. If you go to www.idqusa.com you will find a chart that will tell you how to use the ambient temp and the correct low side gauge reading that you need in your vehicle to get the best results from your ac system.
Yes. An ac system will not work properly if over charged.Yes. An ac system will not work properly if over charged.
By buying an AC charge hose and a can or 2 of R134a freon (depending on how much your car needs) Attach hose to the low pressure side & charge system. Do not overcharge, or you may destroy the AC system.
Because it probably has a leak if you have just fixed a leak then you need to put a vacuum on your AC system before you can charge it.
You will not be able to charge the system correctly plus you will have moisture stuck in the system.....
Two-way current is called alternating current (AC). In AC, the flow of electric charge periodically reverses direction, unlike direct current (DC) where the flow of electric charge remains in one direction.
Not the high side.
It is on the accumulator.
You charge the ac system on a vehicle through the low side port. There is alot of DIY (do it yourself ) tools in the market for you to work on your ac system. You can find a lot of helpfull information on www.idqusa.com.
The amount of oil charge required for an automotive AC system is specific to the car. There is not standard amount for all cars.