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Air Conditioning

Air conditioning adds a whole new element to your comfort during those hot summer days. Today's air conditioners are more comfortable and efficient than ever. We can get you up and running with air conditioning right away.

How Your Air Conditioner Cools the Air

Central air conditioners are split systems: an outdoor unit (the condensing unit) and an indoor unit (air handler). The function of an air conditioner is to transport heat from inside the house to outside. The vehicle your system uses to carry the heat is called a refrigerant, commonly referred to as Freon.

The compressor in your outdoor unit changes the refrigerant (or "Freon") into a high temperature, high pressure gas. As that gas flows through the outdoor coil, it loses heat and condenses into a high temperature, high pressure liquid. This liquid refrigerant travels through copper tubing into the evaporator coil. There the refrigerant expands. Its sudden expansion turns the refrigerant into a low temperature, low pressure gas. This gas then absorbs heat from the air circulating in the duct work. The cooled air is then distributed back through your house or place of business. Meanwhile, the heat absorbed by the refrigerant is carried back outside through copper tubing and released into the outside air.

Dirty coils and improper refrigerant levels can cause your system to cool less efficiently than it should. An inefficient system means higher energy bills. It also forces your compressor to work harder than is necessary and can actually shorten the life span of your unit. An annual air conditioning inspection by an experienced technician includes an inspection of the coils and the checking of your refrigerant charge, to insure that your system is running efficiently.

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More About Air Conditioners


  • How Your Air Conditioner Dehumidifies the Air

    • As the warm air circulating through your ducts passes over the evaporator coil, it is quickly cooled and can no longer hold as much moisture as it did at a higher temperature. The excess moisture condenses on the outside of the coils and is carried away through a drain. The process is similar to what happens when moisture condenses on the outside of a glass of ice water on a hot, humid day.

    Occasionally, the drain lines may become clogged and your system will not drain properly. This can result in a drain pan overflow, leading to water leaks in your ceiling or walls. An annual air conditioning inspection by an experienced technician should include an inspection of your drain lines and an algaecide treatment to retard the growth of algae. Consider having a cut-off float switch installed in your unit's drain pan. This switch will shut-off your unit before water overflows.

  • Compressor

    • The compressor is the "engine" which drives the condensing unit. The condensing unit serves as a pump which compresses the gas in the high pressure (condensing) side of the cooling cycle and causes the refrigerant (Freon) to circulate.

  • Condensing Unit

    • Also known as the "outdoor unit", the condensing unit pumps vaporized refrigerant from the air handler (indoor unit), compresses it, liquefies it, and returns it. It contains the compressor coil, and outdoor fan motor, refrigerant control valves, and other necessary controls.

  • Refrigerant

    • Refrigerant is a substance which absorbs heat by changing states (evaporating) from liquid to gas. It releases heat by changing states (condensing) from gas back to liquid. Most people refer to the refrigerant used in cooling systems as Freon (DuPont's brand name for R22) and Puron (a brand name for R410A). Because of its potentially damaging effect on the environment, the purchase and use of refrigerants is strictly regulated by the Environmental Protection Agency.

  • SEER Rating

    • The SEER (Seasonal Energy Efficiency Ratio) rating is used to identify the cooling efficiency of both traditional air conditioners and heat pumps. The SEER rating indicates how efficiently the unit utilizes electricity: the higher the rating, the less electricity the unit requires to cool a given area.

  • Split System

    • A split air conditioning system allows the air handler to be installed in a different location from the condenser. While split systems generally cost more to install than package units, they can save you money in the long run because they are more energy efficient. Another advantage is the reduction of condenser noise. Split systems are also often used where there is a space problem.

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