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.
Vacuum air conditioning unit.
How to vacuum a c lines.
See parts of a central air conditioner below to become familiar with how an air conditioner works and the parts of the system.
Air conditioner units consist of condenser which itself contains the compressor cooling tubes and a fan an evaporator the large internal unit which cools the air tubes to drain moisture from the dehumidified air and a fan to blow the cool air out into the house or apartment.
You may have a different type of central air conditioner than we show here a heat pump system for example or a unit mounted horizontally in the attic.
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.
The most common type of central air conditioning is the split system which features a large boxy condenser outside the home and a fan and coil system inside connected by pipes carrying refrigerant.
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To clean the unit you ll need to vacuum the compressor unit and replace the inside air filter.
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.
It is important to vacuum an air conditioning system to remove any air or moisture that may damage the system in the long run.