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How Does an air conditioner work?

An air conditioner cleans, circulates, cools and dehumidifies (removes undesirable moisture from) indoor air. A filter cleans the air by trapping dust and other small particles. An air handler (blower built into the system) circulates it, while the cooling and dehumidifying are accomplished by a process called refrigeration.

What is R-410A refrigerant?

R-410A is an ozone-friendly refrigerant designed to replace R-22. R-410A refrigerant does not contribute to ozone depletion.


What is the timeframe for the R-410A switchover?
The Clean Air Act mandates that all HVAC equipment manufacturers cease producing equipment with R-22 refrigerant on January 1, 2010, and chemical manufacturers cease producing R-22 refrigerant on January 22, 2020. Along with prohibiting the production of chemicals deemed harmful to the ozone, such as R-22 refrigerant, the Clean Air Act also mandates that no refrigerant be released into the atmosphere during installation, service or retirement of equipment.

If my current system is R-22, can I replace a portion of it with R-410A?
If you purchase an outdoor R-410A unit, you must replace the indoor coil with a properly matched R-410A model. R-22 and R-410A refrigerants cannot be mixed.


Should I purchase an R-410A system if I need a new unit now?
While you can continue to legally purchase R-22 systems until supplies run out sometime after 2010, if you need a solution today, it may make more sense in the long run to buy an R-410A system.



Furnaces: How Does it Work?

The furnace is the most important component of a central heating system. It houses all the working parts. So when you replace the furnace, you replace the vital operating parts of your heating system. It is by choosing from among the different models and brands of furnaces available that you determine the quality and cost of your home/business’s heating for years to come.

 Gas Heat. If it is a gas furnace, the heat is supplied by the burning of natural gas. A mixture of gas and air flows into the burner and is ignited by the pilot. Combustion occurs, and warm air from the burner flame rises to fill a chamber known as a heat exchanger.

The heat exchanger becomes hot. Office air passing around the heat exchanger absorbs that warmth, continues into the air ducts and the heat is distributed through the business.

The by-products of combustion pass upward through a venting system and escape through a vent in the roof.

Electric Heat. If the furnace is electric, heat is generated by an electric heating element. Electric current traveling through the element creates heat. By the heat transfer processes called conduction and convection, heat is transferred into the air stream and flows through the air ducts into the rooms.

What is the difference between a split system and a package unit?
A split system uses indoor and outdoor components to provide a complete home comfort system. A package unit or self-contained unit requires no external coils, air handlers, or heating units.



What is the SEER Rating?
The SEER rating is the total cooling output provided by the unit during its normal annual usage period, divided by its total energy consumption during the same period. Seer ratings for air conditioners are similar to miles-per-gallon ratings for vehicles

Central Air Conditioners and Heat Pumps manufactured in the U.S. after January 23, 2006 have to meet the 13 SEER minimum efficiency requirement as set forth by the US Department of Energy.

For best operating performance and reliability in 13+SEER systems, the indoor evaporator coil needs to be matched to work with the outdoor condenser coil.