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The basics: How your central air conditioning works
A traditional home comfort system has two parts: an indoor unit, such as a furnace or air handler, and an outdoor unit. An air conditioner is the outdoor unit that cools air and sends it to the indoor unit to be circulated through your home. The indoor and outdoor units are designed to work together, and when the air conditioner is properly matched with a furnace or air handler, the result is maximum efficiency and extended system life.

The air conditioning part of your "split system" includes a compressor, a fan, condenser coil, evaporator coil and a refrigerant. The system extracts heat from indoor air and transfers it outside, leaving the cooled indoor air to be recirculated. Air conditioning and cooling efficiency is measured using a Seasonal Energy Efficiency Ratio (SEER). A higher SEER signifies higher energy efficiency.

The basic components of an air conditioning system:

  • A Condensing Unit (the outdoor section)
  • A matching indoor Air Handler or Gas Furnace with coil
  • Ductwork to transfer the cooled air throughout the home

We can service all your air conditioning needs from installation to maintenance and repair.

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Contact A/C Expertek

West Valley
81 North 151st Ave.

AZ, 85338


Central Phoenix

East Valley

Air Conditioning


Sometimes described as the "most air-conditioned place on earth", the warm climate of Arizona demands air conditioning in homes and office space. We can service all your air conditioning needs from installation to maintenance and repair.

More about central air conditioning

Heating Systems


For climates with moderate heating and cooling needs, heat pumps offer an energy-efficient alternative to furnaces and air conditioners. Like your refrigerator, heat pumps use electricity to move heat from a cool space into a warm.

More about heating systems

Indoor Air Quality


Indoor air quality is essential to a clean and healthy home or work environment. We provide air purification, ventilation, and filtration solutions for residential and commercial applications. Indoor air quality testing is also available.

More about indoor air quality
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