Q:

How much Freon does a 3-ton air conditioning unit hold?

A:

Quick Answer

A 3-ton air conditioning unit can hold 6 to 12 pounds of Freon, depending on the unit. The exact amount of Freon needed is determined by a variety of factors, such as the type of unit and where it is installed.

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Full Answer

The amount of Freon or other refrigerant necessary to fill any size air conditioning unit depends on factors such as the size of the evaporator coil and whether the air conditioner is an all-in-one, self-contained exterior unit or a split system unit in which the condenser and compressor are outside and the air handler and coil are inside. The length of the lineset, the copper pipes which connect the outside condensing unit to the indoor evaporator coil on a split system unit, also affects the amount of Freon necessary to fill the unit, as does the diameter of the lineset tubing.

The seasonal energy efficiency ratio of the unit also impacts the amount of Freon an air conditioner requires; the higher the SEER rating, the larger the evaporating coil. The larger coil surface makes the air conditioner more efficient while increasing the amount of Freon needed to fill the unit. Freon, also known as R-22, is regulated by the Environmental Protection Agency, and only an EPA-certified technician can buy and handle it.

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Related Questions

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    How do I know if my air conditioner needs Freon?

    A:

    If an air conditioner is not cooling as well as it once was, it may need Freon. Some signs of this include the air conditioner being turned up to the highest setting, but barely producing any cold air, or cold air not coming out at all. Another sign is if large amounts of water are leaking from the air conditioner's air handler.

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  • Q:

    How do you put Freon in a car?

    A:

    After purchasing the Freon, attach the can to the air conditioning compressor, open the can, replace the Freon, close the can and repeat the steps as necessary. It is extremely important to prevent the Freon from touching the skin as frostbite will occur.

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  • Q:

    How much Freon does my truck need?

    A:

    Most vehicles need 25 to 35 pounds per square inch of Freon on the low side if the vehicle is running with the air conditioner on its coldest setting and fastest fan speed. The amount of Freon a vehicle uses is measured in pounds per square inch, or psi.

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  • Q:

    How does a gas furnace work?

    A:

    A gas furnace consists of two parts, an outdoor air conditioning unit and indoor furnace that work together to draw in, heat and circulate winter air and cool, then circulate, warm summer air. These two units contain components including a burn, flue and heat exchanger that contribute to making the process complete.

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