How To Install A Ductless Air Conditioner

Ductless air conditioners, also called mini-splits, are a popular, energy-efficient way to cool specific rooms or areas of your home without extending ductwork. If you’re a DIYer, you might be tempted to learn how to install a ductless air conditioner yourself, but this is one project where it truly pays to call the pros. Let’s walk through the typical installation steps, what tools are required, and the risks involved, so you’ll understand why contacting Oliver for ductless AC installation is the smarter, safer move.

Important Note:

Some of these tools, especially those used for handling refrigerant and testing pressure, are typically used by certified HVAC professionals and require proper training and licenses.

Step 1: Choose The Right System

You’ll need to pick a unit with the correct BTU capacity based on the square footage and thermal needs of your space. This isn’t guesswork, and proper sizing is critical. Wrong-size systems lead to poor performance, short cycling, and higher energy bills.

Step 2: Select Installation Locations

Decide where to mount both the indoor air handler and outdoor condenser. You’ll also need to route refrigerant lines, a drain hose, and electrical cables between the two units. Incorrect placement can compromise efficiency, airflow, and aesthetics.

Step 3: Mount The Indoor Unit

Using a level and stud finder, mount the indoor unit securely and drill a hole for the line set. It’s a delicate process that has to be done with precision. Drilling through walls (especially exterior ones) leaves zero room for error. One wrong move and you could damage your home’s structure or utilities.

Step 4: Install The Outdoor Condenser

The condenser must sit on a level pad, away from debris and obstructions. It needs to be securely anchored and correctly wired. This step involves working near your home’s electrical panel. Licensed HVAC technicians, like those at Oliver, are trained to perform these tasks safely and code-compliantly.

Step 5: Connect Lines And Power

Here’s where the job gets technical. Running and flaring copper refrigerant lines, wiring the electrical components, and using a vacuum pump to evacuate the lines. Handling refrigerants without EPA certification is illegal and dangerous. This is not a safe DIY step and can damage the system beyond repair.

Step 6: Test And Start

Once connected, the system needs to be tested for leaks, pressure levels, electrical load, and cooling output. You’ll need specialized tools and training to do this right. Oliver’s HVAC technicians have the experience and equipment to test your system thoroughly, ensure it’s running efficiently, and back it up with warranty protection.

Don’t DIY Your Ductless AC

While it’s great to be handy around the house, ductless air conditioning installation crosses into professional territory. Between electrical work, refrigerant handling, and precise system tuning, one mistake could be costly or even dangerous. Oliver’s expert team ensures your ductless system is installed correctly, safely, and in compliance with all codes. You’ll enjoy hassle-free comfort with a professionally backed warranty and support.