What Are The Main Parts Of A Two-Stage Cooling System And What Advantages Do They Offer?

A traditional central air conditioner can have only one speed, which means that the unit is either running at full cooling power or not running at all. The one-speed setup can run up energy costs and leave your indoor temperatures either too cold or too warm. Two-stage cooling systems offer an air conditioning alternative.

What are the main parts of a two-stage cooling system and what advantages do they offer? Here are some facts you can discuss with your appliance repair services company.

Two-Speed Compressor

When you set the thermostat to cool to a certain temperature, the temperature sends an electrical signal to rely that information to the condensing unit portion of the system. The condensing unit, which is located outside your home, starts up with the compressor running. The compressor compresses gas refrigerant so that the refrigerant can enter nearby condenser coils. Entering those coils, undergoing a phase change, and then moving indoors into the evaporator coils for another phase change is how the refrigerant is able to produce the cooled air for your home.

In a one-speed system, the compressor is either pumping out refrigerant at full speed or not running at all. But a two-speed system has a compressor that can run on full speed or high and then switch over to low speed for situations where less cooling is required. The lessened supply of refrigerant is still adequate to fuel the cooling system but won't cost any valuable energy.

Variable Speed Air Handler

Some systems only have the compressor with two-speed settings but others include a variable speed air handler. The air handler is the portion of the air conditioner unit located inside the house usually within the furnace.

The handler contains the aforementioned evaporator coils, which take in the liquid refrigerant created in the condenser coils and change it back into gas. That phase change causes the coils to become cold. A motorized fan blows circulated warm air across those coils and then pushes the now-cooled air out your vents.

A variable-speed air handler adjusts the speed of that fan. A low-speed fan will circulate less warm air across the coils and push out less cooled air. The setup combined with the two-stage compressor offers the best setup for maximum energy savings.

Ideal usages for the lower settings include days when the outdoor temperature isn't particularly hot but is humid, which can make your indoor temperatures feel warmer even if you have a humidifier. You still have the option to run the unit at full power on days when the temperatures soar and you legitimately need a large supply of cold air.

For more information, contact AAA Home Services or a similar company.