Question about Air Tools & Compressors
Yes you can do that. Since R134 can be purchased without the need for a license. I must mention tho not to release refrigerant in the atmosphere because even tho 134 is considered not as damaging to the ozone it still contribute to global warming. Plus it is still required by the EPA that you must use a recovery device when servicing a 134 system, you can add some in there without the need for recovery device. Before you do so connect the gauges. Make sure the hoses are clear then start the car and turn the a/c to maximum as well as the blower. You should have all the windows close ( make sure you don't get locked out). As the inside of the car cools down, the pressure on the low side will drop gradually, as it reaches around 35 PSI, then as it reaches what you call a cut off pressure the compressor will cut off then the pressure suddenly starts going up again untill it reaches a certain pressure then the compressor kicks in again. If this cycle happens too often say every few seconds or so that means it is low on refrigerant. If this cycle does not happen at all, then either there is air in the system, or it is overcharged. If there is air in the system or it is overcharged, it wont cool properly, and it can damage the compressor over time. All these peressure reading are on the low side. Recharge kit only have low pressure side gauges. Warning: Never charge an A/C system in a car on the high side, the can will burst and can cause injury. Good luck
Posted on May 28, 2011
You definetly can just keep in mind that it will not be a great amount of freon as when a proffesional shop does an a/c recharge and revac. The first thing you want to do is look for a plastic cap that is near the a/c resavior and remove it. Then just press on the bottle of freon and give it a couple of minutes to transfer through.
Hope this helps!
Posted on May 28, 2011
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Posted on Jan 02, 2017
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