How To Vacuum Car Ac System

To use a vacuum pump on an air conditioner first turn the pump on and open the side gauge valve which will allow the vacuum to start pulling air out of your system.

How to vacuum car ac system.

Follow the steps below to complete an effective vacuuming of the ac system and recharge it returning the ac to its pristine working condition. Condensed water particles corrode the ac system and cause long term damage. For effective vacuuming open the low port s valve of the gauge. Park your car on a flat surface and turn the air conditioner off.

A vacuum of about 500 microns or 29 92 hg gauge pressure is needed for removing any moisture that may have entered the system along with the non condensable gases while it was open. This applies to the newer r134a refrigerant systems as well as the older r12 systems. Also keep the car engine switched off. Moisture in the ac system is a serious problem because moisture reduces the performance of the ac system and condensation of water can cause the ac system to freeze.

Close the low pressure valve and now you may. Steps to vacuum ac system. This is enough time period to get rid of moisture and dust inside the ac system. Creating a vacuum deep enough to boil moisture away by using a vacuum pump on a regular basis is an.

Once the tenure of vacuuming has ended. Once the valve is open let your vacuum run at full speed for 15 to 30 minutes to pull out as much air as it can.