How To Vacuum Car Ac System With Pump

Next you need to connect the red colored valve to the high pressure port and the blue colored valve to the lower one.

How to vacuum car ac system with pump.

Condensed water particles corrode the ac system and cause long term damage. 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. 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. One thing straight remember to keep the valves on the closed position before connecting to ac system.

Pumps can be purchased or rented if you don t want to make a permanent investment. With a vacuum pump connected to both low and high air conditioning system sides pull a deep vacuum for at least 5 45 minutes. Hooking up the manifold gauge to vacuum ac system. Creating a vacuum deep enough to boil moisture away by using a vacuum pump on a regular basis is an effective low cost method of maintaining a healthy 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. Proper way to pull a vacuum from a discharged auto ac system.