Remember that air conditioner refrigerant is poisonous and may cause frostbite, so please follow the safety measures listed below before you begin filling your air conditioner with gas.
Filling the air conditioner with gas follows a certain procedure
Aircon gas top up is a simple task if you have the proper equipment and protective clothing. Find the suction line (on the low side) and the discharge line on the air conditioner before proceeding (high side). These are found behind a window air conditioner and in a split air conditioner’s outside unit. A cool-to-the-touch suction line is placed above the discharge line and is above the discharge line. When the discharge line is warm to the touch, the discharge is complete. The suction line is responsible for replenishing the gas in the aircon not cold.
Remove the suction line bolt by unscrewing it in the manner indicated below. Using a Torx hex key, loosen the screw from the inside (as shown in the picture below). This screw serves as a valve, preventing refrigerant from flowing in or out until completely closed. As a result, it is necessary to loosen this screw to aircon gas top up. After that, unscrew the bolt on the left and connect the blue hose from the AC manifold gauge to this port on the right side of the engine. Connect the yellow hose to the vacuum pump using a hose clamp. Remove all of the air from the AC before continuing. This step is critical because any moisture that gets into the compressor can cause it to malfunction.
Make sure that all of the valves on the AC manifold gauge are closed at this point. Once this is completed, attach the yellow line to the refrigerant tank. Before turning the tank knob, loosen the yellow hose at the manifold and end a smidgeon before turning it. Then open and shut the cylinder knob for one second each time. This will completely expel all of the air from within the pipelines. To finish, tighten the yellow hose one more time, making the aircon not cold.
Then, for 3-4 seconds, open and shut the low-side knob of the manifold on the right side. Then switch on the air conditioning and wait for the compressor to start in.
As soon as the compressor kicks on, open up the low-side valve on the manifold once again. Continue to hold the valve open for 4 seconds before closing it for 2 seconds. Once the valve is closed, take note of where the pressure settles on the gauge needle. Continue to open and close the valve until the pressure has stabilized between 60 and 70 PSI.
The Causes of Air Conditioning Gas Leakage
Manufacturing defect: No manufacturing process is completely error-free, which is especially true when people are engaged in assembling the item. The presence of many joints and welds that are not done with high accuracy may result in a leak. If there are manufacturing flaws in the air conditioner, leakage will occur during the early stages of operation and will be repairable under the terms of the manufacturer’s warranty.
Installing an air conditioner incorrectly: A critical component of air conditioning installation is establishing flare nut connections and bending the copper pipes, both of which are paradoxically the most frequent sources of refrigerant leaks. Flare nuts should be covered with Teflon tape to prevent this from happening, and copper pipes should only be bent with a tube bender. Air conditioners are pressured devices. Therefore they are subject to regular wear and tear. After some time, the bolts and joints may become brittle and begin to leak.
