How To Vacuum Car Ac System

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.

How to vacuum car ac system.

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. Proper way to pull a vacuum from a discharged auto ac system. 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.

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. This is enough time period to get rid of moisture and dust inside the ac system. This applies to the newer r134a refrigerant systems as well as the older r12 systems. 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.

With a vacuum pump connected to both low and high air conditioning system sides pull a deep vacuum for at least 5 45 minutes. Once the tenure of vacuuming has ended. Follow the steps below to complete an effective vacuuming of the ac system and recharge it returning the ac to its pristine working condition. Also keep the car engine switched off.

When concerned as to how long to vacuum car ac system you should know that it would take around 30 45 minutes. Creating a vacuum deep enough to boil moisture away by using a vacuum pump on a regular basis is an.