How to Remove Freon From a HVAC Unit Raise the hood. Plug the machine in and make sure that both valves on the front of the machine are closed. Open both the blue and red valves on the front of the machine. When the machine shuts off, close both the red and blue valves before removing the red and blue lines from the system. Click to see full answer. In respect to this, how do you remove freon from air conditioner? Switch the indoor thermostat off. Locate the low-pressure side of your refrigerant and the suction side of the compressor. Use your wrench to close the service valve that you will see on the condensing unit’s low-pressure side. Now, close the high-pressure side’s service valve just slightly. Beside above, how do you restore freon without a machine? Refrigerants Recovery Process Using Gauges and Tanks Get a recovery tank and put an inline filter on the input of it. Evacuate the tank and place it in the freezer. Connect the gauges to the system and recovery tank with the closed tank valves and open gauge handwheels. Also to know is, how do you drain an air conditioner? Directions: Turn off the power to your HVAC unit. Find your AC drain line. Push the stiff, thin brush into the end of the drain line. Attach the end of your wet/dry vacuum to the end of the AC drain line. After you’ve run the vacuum for about a minute, remove the wet/dry vac and head indoors. Locate the vent tee. Do you charge AC on high or low side?The LOW side fitting is usually located on the suction hose or line that goes from the accumulator to the compressor. The HIGH side fitting is located on the line that goes from the compressor to the condenser.
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