Investing in a new air conditioning system is a big decision, and proper installation is key to getting the most out of your unit. Even minor installation mistakes can lead to higher energy bills, poor cooling efficiency, and a shorter lifespan for the system. To help you avoid these issues, we’ll cover some of the most common AC installation mistakes and provide tips for ensuring a smooth, effective setup.
Choosing the Wrong Size AC Unit
One of the biggest mistakes homeowners make is choosing an AC unit that’s either too large or too small for their space. When it comes to air conditioning, size matters: an undersized unit will struggle to cool the home, constantly running and driving up energy costs, while an oversized unit will cool the space too quickly, leading to short cycling, uneven cooling, and increased wear on the system.
To avoid these issues, have a certified HVAC professional calculate your home’s load to determine the correct size. This calculation takes into account factors like the size of your space, insulation, windows, and climate. The U.S. Department of Energy recommends consulting a professional to ensure the unit size matches your home’s cooling needs, maximizing efficiency and comfort.
Incorrect Placement of the Outdoor Unit
Where you place the outdoor condenser unit has a big impact on how efficiently it cools your home. If the unit is installed in a spot with limited airflow, such as too close to walls or under low-hanging structures, it will struggle to dissipate heat, forcing it to work harder and consume more energy. Additionally, placing it in direct sunlight can increase the temperature of the unit, further reducing its efficiency.
For optimal performance, place the outdoor unit in a shaded, open area where it has plenty of airflow. Keeping it at least two feet away from walls or other structures will allow it to function efficiently and reduce energy consumption. Energy Saver advises homeowners to ensure the outdoor unit is kept free from debris and has adequate space around it for optimal airflow.
Skipping Ductwork Inspection and Sealing
If your home has existing ductwork, don’t overlook its condition during an AC installation. Old, leaky ducts can allow cool air to escape before it even reaches your living space, significantly reducing your system’s efficiency and leading to higher energy bills. Studies have shown that up to 20% of the air moving through duct systems in a typical home can be lost to leaks, holes, or poorly connected ducts.
Before installing a new AC system, have your ducts inspected and sealed by a professional. Properly sealed ducts ensure that cool air reaches its intended destination, maximizing efficiency and comfort while reducing the workload on your AC unit.
Improper Refrigerant Charge
Refrigerant is the substance that cools the air in your AC system, and it needs to be at the correct level (or “charge”) for the system to function efficiently. Too much or too little refrigerant can lead to a range of issues, including poor cooling performance, higher energy consumption, and potential damage to the compressor. Unfortunately, some installers may skip proper refrigerant charging protocols, leaving the system with an incorrect level that impacts its efficiency.
To ensure your system is charged correctly, work with a certified HVAC technician who follows proper procedures for refrigerant measurement and charging. This attention to detail will keep your AC system running smoothly and prevent future breakdowns. The Environmental Protection Agency (EPA) advises hiring certified technicians trained in safely and effectively handling refrigerants.
Failing to Level the Condenser Unit
The condenser unit—the part of your AC system that sits outside—needs to be installed on a level surface to function correctly. An uneven condenser can cause vibrations, which strain the system’s internal components and can lead to mechanical issues over time. Furthermore, an unlevel condenser may not drain properly, potentially causing water damage or rust.
To prevent these problems, make sure your contractor installs the condenser on a stable, level base, such as a concrete slab or a sturdy composite pad. This simple step will ensure your system runs smoothly, with minimal strain and vibration, extending its lifespan and performance.
Get the Most Out of Your AC System with Proper Installation
AC installation is more than just setting up a unit; it’s about ensuring each component is correctly placed and calibrated for optimal performance. Avoiding common installation mistakes—such as choosing the wrong size unit, placing the outdoor condenser improperly, skipping duct inspection, incorrect refrigerant levels, and not leveling the condenser—can help you maximize the efficiency and lifespan of your system.
By choosing a reputable, certified HVAC contractor for your installation, you can trust that these details will be handled with care, saving you money and ensuring a comfortable home environment. At Apex Clean Air, our team is committed to providing top-quality installations that prioritize efficiency, comfort, and long-term performance.
Contact us today to schedule a professional AC consultation and installation. With the right setup, your AC system will be ready to keep you cool and comfortable for years to come.
