What Are the Most Important Parts in Any HVAC System?

June 19, 2018 3:53 pm Published by Leave your thoughts

Most homeowners don’t think much about their HVAC system until it stops working. Until then, it is taken for granted that the unit will keep their surroundings comfortable throughout the seasons. But how is this possible? How does the system work? If it breaks down, you call your HVAC contractor, but what parts might they replace?

It’s helpful for homeowners to have a working knowledge of the major parts of their HVAC systems. This will help with troubleshooting problems, communicating with HVAC contractors and knowing what to expect from furnace or AC repair in Kalamazoo, MI. Following are the parts you should know:

  • Heat exchanger: As the name suggests, this part takes in cool air and warms it. This part is typically made of stainless steel and other temperature-resistant alloys. It is a main component of all HVAC systems, including electric units.
  • Blower motor: Once the heat exchanger has warmed the air to the desired temperature, the electric blower motor forces the warmed air into your home. Once the air reaches the rooms and raises the temperature, the motor shuts down until the next heating cycle.
  • Combustion chamber: This part is also called a burner. To start the heating cycle, the furnace adds oxygen to fuel in a combustion chamber. Once this occurs, a pilot light or glow stick lights a gas mixture in the combustion chamber to start the heating process.
  • Condenser coil: Also known as the compressor, this is part of the exterior unit. The condenser is the part that cools your home. It does so by releasing heat to the outside. The condenser compresses refrigerant from gas to liquid, while a fan blows the air over the condenser. Then, the refrigerant is sent through a tube to the evaporator coil.
  • Evaporator coil: Your system sends the cooled refrigerant from the compressor to valves in the interior unit. These valves disperse the liquid so it will evaporate into gas form. As it does, it absorbs heat and makes your home cooler.
  • Ductwork: This is the part of your HVAC system that allows the cooled or heated air to travel to all parts of your home. These channels begin at your main unit and are located in the walls of the home, ending at vents in each room. Leaks or separations in the ductwork will make your unit less effective, as will blocking the vents with furniture, rugs or curtains.
  • Thermostat: This electronic unit controls the operation of your HVAC system. It sets the desired temperature of the home, so that your unit cycles on if the interior temperature varies from the set number. A programmable thermostat can greatly increase the efficiency of your unit and reduce utility costs.

Get More Answers

Do you have additional questions about your HVAC system? Don’t hesitate to contact your trusted HVAC contractors. The professionals at All Brands Heating and Cooling offer a wealth of knowledge based on extensive HVAC experience. Contact our team today with any questions or to schedule your next appointment for furnace or AC repair in Kalamazoo, MI.

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