The Importance of Proper Ductwork in Installing a New AC Unit

As an HVAC expert, I have seen many homeowners make the mistake of assuming that a new air conditioning unit automatically comes with ductwork. However, this is not always the case. While central air conditioning units are the most common systems used in homes, not every home is equipped with the necessary ductwork. This means that when installing a new AC unit, it is important to also consider the installation of new ductwork.Before calling a professional HVAC company, it is crucial to consider the cost of installing new ductwork.

The process of replacing an air conditioning unit involves removing the old unit and installing the new one, both inside and outside the house. However, there is also a complete circulatory system of ducts that carry refrigerated air from the unit to different ventilation grilles throughout the house. If these ducts are faulty or inefficient, they will not work effectively with the new air conditioner. Not only will a faulty duct system result in a higher energy bill, but it can also cause your heating and cooling system to work harder. This is why it is important to call a professional rather than attempting to fix your own ducts and risking losing money in the long run. When homeowners are in the process of buying a new air conditioning unit, they often have many questions.

One common question is whether or not new units come with refrigerant. The answer is yes, all new AC units come with refrigerant. However, it is important to know what type of refrigerant is being used in order to properly care for your air conditioner. In recent years, there have been changes in air conditioning refrigerant fluids as HVAC science and technology have shifted towards more environmentally friendly and energy efficient solutions. The refrigerant works by converting from liquid to gas, absorbing hot air from the house, and then starting the process again.

While cost is a consideration when choosing a new AC unit, it is also important to consider factors such as indoor air quality, efficiency, and comfort. During the installation process, your HVAC contractor will perform ACCA calculations to determine the appropriate size of the air conditioner for your home. This is important because an oversized or undersized unit can lead to inefficiency and discomfort. Once your new HVAC unit has been professionally installed, there are some things that homeowners can do to maintain it. These include regularly replacing air filters, sealing any air leaks in the ducts, cleaning up debris around the unit, maintaining a 2-foot space around the unit, replacing or adjusting the thermostat, and cleaning the evaporator coil, evaporator trap, and drain pipe with a garden hose. While insulation is not typically part of installing an HVAC unit, it may be necessary for older homes that experience cold and drafty rooms in the winter and stuffy upper floors and attics in the summer. If your home has an older air conditioning unit, it is recommended to replace the entire unit to ensure compatibility with the condenser and to avoid using the prohibited R-22 refrigerant. The total cost of replacing an HVAC unit can also be influenced by the climate of your home's geographic location.

Homeowners should consult with their HVAC professional to find out how much they charge for moving and disposing of old units. If you are considering replacing your air conditioning unit, you may be wondering if you can use your existing ductwork. While this may be possible in some cases, it is important to have a professional assess the condition of your ducts. If they are not free of dust and allergens or if they are leaking, it may be necessary to replace them in order to ensure the efficiency and effectiveness of your new HVAC system. Finally, if your current unit is not producing cold air, it is important to have a professional check the coolant pipes for any damage. If the cost of repairing your HVAC unit is 30% or more of the total cost of replacing it, it is usually more cost-effective to choose a new unit.