By its chemical composition, freon is a mixture of methane and ethane. In the industry, more than 40 types of freons are used, which can be both in a gaseous and in a liquid state, colorless and odorless. Its main purpose is a refrigerant in refrigeration equipment. Freon leakage is one of the most common air conditioner malfunctions that can disable them.
Instructions
Step 1
Signs of a leak are easy to detect: either the equipment does not start to work at full strength, or ice or frost forms on the outdoor unit. So, if a freon leak is detected, first of all, turn off the power. Refuel the air conditioner through the dedicated ports on the external unit of the system.
Step 2
The easiest way to refuel is by weight. It consists in the fact that before refueling the cylinder with freon is weighed and then, during the refueling process, the change in the weight of the cylinder is periodically recorded. However, the simplicity is compensated for by a number of inconveniences - the air conditioner must be dismantled, and the circuit must be vacuumized.
Step 3
Another filling method is by pressure. To implement it, use the table with the necessary information provided by the air conditioner manufacturer. Connect the system to a cylinder from which it is gradually replenished with freon. The connecting element between the system and the cylinder is a gauge manifold.
Step 4
After each portion of freon, compare the readings of the manometer with the data on the factory table. For a refrigerator, a freon leak means a compressor failure, as a result of which there is no cooling even during its operation. A manifold with hoses can also be used for refueling. Typically, in this case, a manifold is used, where two pressure gauges - blue and red, two valves and three hoses. The blue gauge records the suction pressure, and the red gauge indicates the discharge.
Step 5
First, connect the blue manifold hose to the filler pipe fitting of the compressor, and the yellow hose to the bottle. Open the blue manifold valve and cylinder valve. Upon reaching a pressure of 0.5 atm. Close both valves, and turn on the vacuum pump for half a minute.
Step 6
Then open the blue valve and turn on the vacuum pump again for 10 minutes, then close the blue valve and turn off the pump.
Step 7
Disconnect the yellow hose from the pump and connect to the cylinder. Next, connect the yellow hose to the manifold and open the blue valve, after which the required amount of freon enters the compressor.
