Common AC Installation Mistakes and How to Avoid Them

AC installation is a specialized task and should be left to experts. An experienced HVAC contractor is equipped to manage the complexities of AC installation. If you try to install an AC yourself, you will likely make costly installation mistakes that can affect your unit’s performance or reduce its lifespan. An improperly installed system is unreliable and can develop problems regularly.

Here Are Some AC Installation Mistakes and How to Avoid Them

Choosing the Wrong Size AC

The most common AC installation mistake is choosing the wrong size AC. An oversized AC consumes more electricity and can short cycle, whereas an undersized unit may struggle to cool your living space efficiently. The last thing you need on a hot summer afternoon is an AC that does not cool properly. The wrong size AC may fail prematurely, and you may be forced to replace it sooner.

Before buying an AC, have an HVAC contractor calculate the load. When performing a load calculation, your contractor will consider your home’s orientation, room size, window size, and insulation levels. A cooling load calculation aims to help determine the number of BTU/hr. needed to keep your home cool.

Poor Location Choice for the Outdoor Unit

The location of your outdoor unit significantly affects the efficiency of the air conditioner. If you place the outdoor unit in an area that has poor air circulation or receives direct sunlight, it can overheat quickly. As a result, your condenser may be forced to work harder and longer. An overworked outdoor unit performs poorly and may cause your unit to use more electricity.

Install the outdoor unit in a shaded, well-ventilated area. Also, ensure it’s away from any heat-generating appliances or debris that could obstruct airflow.

Installing the Thermostat in the Wrong Location

If you place your thermostat in the wrong location, it may fail to regulate your home’s temperature. To prevent thermostat performance issues, avoid putting your thermostat in an area that receives direct sunlight or is close to heat-emitting appliances.

Ignoring Ductwork Issues

Leaky or poorly insulated ducts can severely impact the efficiency of your AC unit. Conditioned air can escape through duct leaks and may not reach its intended destination, causing your system to work harder. Inspect your ductwork for damage and fix any cracks with a permanent sealer before installing a new AC. If your ductwork is too old or too big or small for your new AC, consider replacing it.

Choosing the Wrong Spots for Your Vents

You cannot just place your air vents anywhere and expect to achieve the desired result. Incorrectly placed vents can cause airflow problems and affect your system’s efficiency. Place your air vents where they won’t be obstructed by furniture or carpets.

Not Checking Refrigerant Levels After Installation

High or low refrigerant levels can affect cooling efficiency. Hire a professional to add refrigerant and check AC refrigerant levels immediately after installation. Do not try to handle refrigerant yourself, as you may make a mistake that could lead to refrigerant poisoning. Many refrigerants are flammable and can start a house fire if not handled correctly.

Whether you are planning to have a window AC, split AC or central AC installed in your home, Master Services Plumbing Heating and Cooling has got you covered. Our professionals plan every AC installation down to the last detail to prevent installation mistakes. To consult one of them, call (262) 248-2103.