TES Heating & Cooling - Stay Comfort In Every Season

Quick Guide To Installing A Mini Split AC

Being your trusted source for HVAC solutions in Los Angeles, TES Heating & Cooling proudly presents the “Quick Guide to Installing a Mini Split AC”. This guide aims to help you understand the process of setting up a mini split AC system in your commercial or residential space. Our expertise spans across installing a variety of HVAC systems, including Mini Split, Heat Pump, Furnaces, Package Unit, Wall Heaters, Air Ducts, Attic Ventilation and Insulation, and Air Conditioning systems. Created to ensure comfort throughout the year, we offer top-notch, customized installation suited specifically to your property needs. Whether you’re just getting started or looking to tune up and maintain your system, we are your ultimate HVAC partner all year round. Are you considering installing a mini split air conditioner in your home or office? With the summer heat fast approaching, it’s essential to have an efficient cooling system in place to keep your indoor environment comfortable. Mini split air conditioners, also known as ductless air conditioners, are growing in popularity because they are flexible, energy-efficient, and easy to install. This guide will walk you through the process of installing a mini-split AC system.

Get Your Free Air Conditioning HVAC Estimate Now!

Why Choose a Mini Split AC?

Mini split air conditioning systems have several advantages over traditional central air conditioning units. They are compact and flexible for multiple zone cooling, meaning they can cool individual rooms at different rates. This not only provides comfort but also energy efficiency, as you can control the cooling in the areas where it’s needed most. In addition, mini split systems do not require ductwork, making them ideal for older homes where duct installation would be too invasive or costly.

Mini split ACs are known for their quiet operation. Unlike window units, which often generate loud noises, mini split ACs are subtle and unobtrusive. They also offer more aesthetic flexibility than other systems, as they can be installed on the wall, the ceiling, or even as freestanding units.

Let’s dive into the installation process.

Click for Complimentary Free Air Conditioning HVAC Quote!

Understand the Basics of a Mini Split AC System

A mini split AC system consists of two primary components: an outdoor compressor or condenser, and an indoor air-handling unit. These are connected by a conduit, which houses the power cable, refrigerant tubing, suction tubing, and a condensate drain.

Before you start the installation process, it’s important to understand the functionality of each part:

Outdoor Unit

The outdoor unit is the heart of the system. It houses the compressor, which circulates the refrigerant that cools the air. The outdoor unit should be installed in a well-ventilated area to ensure optimal performance.

Indoor Unit

The indoor unit is responsible for dispersing the cooled air into your home. It’s usually mounted on a wall or ceiling. Many mini split systems allow you to control each indoor unit separately, meaning you can set different temperatures in different rooms.


The conduit connects the indoor and outdoor units. It’s a flexible pipe that contains the power cable, refrigerant tubing, suction tubing, and condensate drain. The conduit should be installed in such a way that it doesn’t obstruct the flow of air.

Choosing the Right Mini Split AC Unit

Choosing the right mini split AC unit for your space is crucial to ensuring effective cooling. The capacity of the mini split AC is measured in British Thermal Units (BTUs). The capacity you need will depend on factors such as the size of the room, the number of people typically in the room, the type of insulation, and the number of heat-generating appliances.

A qualified HVAC professional can help you determine the appropriate capacity for your space. TES Heating & Cooling can provide you with top-notch custom installation services tailored to your specific needs.

Where to Install the Mini Split AC

Before you start the installation process, you need to decide where to install the indoor and outdoor units of the mini split AC. Here are some guidelines to help you choose the best location:

Indoor Unit

The installation location of the indoor unit should be at least 7 feet from the floor to ensure sufficient air circulation. Avoid locations where air blockage may occur, such as behind doors or near furniture.

The unit should also be installed near a power source and within reach of the outdoor unit to accommodate the conduit. Finally, it’s best to install the indoor unit on an exterior wall to facilitate easy drainage of condensate.

Outdoor Unit

The outdoor unit should be placed on a flat surface such as a concrete pad. It must be in a well-ventilated area, away from any obstructions. The outdoor unit should also be installed within reach of the indoor unit and the power source.

Installation Process

Now, let’s look at the basic process of installing the mini split AC. If you’re not comfortable doing this on your own, it’s always best to hire a professional like TES Heating & Cooling.

Installation of the Indoor Unit

  1. Mount the bracket: First, determine where you will install the unit, and mark the location of the mounting holes. Drill the holes and install the mounting bracket with the provided screws or bolts.

  2. Install the unit: Attach the indoor unit to the mounting bracket, ensuring it’s securely in place.

  3. Create a hole for the conduit: You’ll need to drill a hole in the wall to pass the conduit from the indoor unit to the outdoor unit.

  4. Pass the conduit: Pass the refrigerant lines, condensate drain hose and electrical connections through the hole to the outside.

Installation of the Outdoor Unit

  1. Place the Outdoor Unit: The outdoor unit should be placed on a level surface, preferably on a surface that minimizes noise and vibration.

  2. Connect the Refrigerant Lines: Connect the refrigerant lines from the indoor unit to the outdoor unit.

  3. Make electrical connections: Connect the electrical wires from the indoor unit to the outdoor unit according to the manufacturer’s instructions.

  4. Check for leaks: Turn on the system and check for leaks. Use soap and water solution to detect any leaks along the refrigerant lines.

Remember, installation procedures may vary depending on the specific model of your mini split system. Always follow the manufacturer’s instructions and consult a professional if you’re unsure about any step.

Final Thoughts

Installing a mini split AC can be an efficient and cost-effective way to cool individual rooms in your home. However, correct installation is key to ensuring that the system operates efficiently and lasts a long time. Always consider hiring a professional for installation to ensure the job is done right.

Remember, for top-notch custom installation and specialized HVAC services, reach out to TES Heating & Cooling. Whether you have a commercial or residential property in Los Angeles, we can provide the right HVAC solution that suits your needs. Get started with an estimate or give us a call now at 424-400-6692.

Unlock Your Free Free Air Conditioning HVAC Evaluation!

Get an Express quote for your HVAC needs

Fill out the form below, and we will be in touch shortly.