Home Home Improvement How to Install a Split System Air Conditioner – Complete Guidelines

How to Install a Split System Air Conditioner – Complete Guidelines

How to Install a Split System Air Conditioner

What Is a Split Type Air Conditioner?

Split ACs are named so because they share two units split with a copper wire. Traditional air conditioners have both parts within one unit. In case of a split air conditioner, however, there’s one outdoor and one indoor unit. The outdoor part houses the condenser and compressor. As for the indoor part, it carries filter and air distribution components.

As mentioned, copper tubing connects the two parts. It’s similar to the ductwork that you see in central air conditioning systems. The tubing is flexible which allows for easy installation without any extensive construction. There’s no need to tear down the wall or anything. Since split air conditioning places the condenser unit outside, the system is a lot quieter than the traditional ACs.

How is it Different From Traditional Window AC?

A traditional window AC follows an all-in-one design, unlike the split one which has two separate parts. What does it mean? It means that with a window air conditioner, components such as the motor, heat-exchanging devices, connecting pipes, and compressors are all housed within one unit.

Split-type ACs are a lot flexible when it comes to installation. You don’t need a separate window. With window units, however, you must have a certain sized window to fit the AC in. It must also block the excess natural light coming-in after installation. 

With a split air conditioner, you can install the indoor unit anywhere along the wall with an unobstructed view. That’s why it’s a lot easier to fit into most homes with varying designs.

Why Is Correct Installation Important?

It’s crucial to correctly install an AC. Failing to do so could lead to a poor-performing unit. What’s more, it could also pose potential safety hazards. So, be sure to hire a professional to carry out this job. A proper installation job will improve the life of your AC and make sure it performs well for years to come.

It may also cut down on energy bills by managing the amount of heating and cooling. In some cases, poor installation may render the warranty null and void. So, keep that in mind.

Here’s why correct AC installation is crucial – 

  • To ensure proper cooling
  • To ensure an efficiently performing unit
  • To make sure the unit consumers less energy so you don’t deal with huge bills
  • To bring down maintenance and service costs
  • To increase the unit’s lifespan

Always work with professional engineers with experience to carry out the installation part.

Factors To Consider During the Installation of a Split AC

Although the professionals take care of the installation part; you as a consumer should also be familiar with some important aspects of split AC installation.

Place of Installation

Be strategic about the place and the exact location of both outdoor and indoor units. You wouldn’t want to install the AC in a place with an obstructed view that could lead to ineffective cooling. Sometimes, poor placement may also cause excessive cooling. Other than feeling uncomfortable, it could also fetch major energy bills.

Strength of the Wall

You would always want to make sure that the wall holding the indoor unit is strong enough to bear the weight. There should be no vibration when the unit is on.


Ideally, there should be at least 10-15 centimeters of open space around both the sides and top of the indoor unit. This is to ensure proper airflow. Obstructed airflow could make it harder for the unit to expel hot air. Not only could it potentially damage the compressor, but it may also drive up the energy costs.

Height of the indoor Unit

Let’s say you have a 10 feet high wall. By the rule of thumb, you should place the unit at about 7-8 feet above the ground. At this height, the unit can spread the cool air evenly around the room. You can also rest assured that the unit doesn’t remain busy cooling the roof (which is generally pretty hot) thus driving up the energy costs.

Location of the Outdoor Unit

This part is crucial. You would want to pick a location that has open space; meaning nothing is blocking the flow of hot air. Open space gives freedom for the condenser and compressor to perform well without too much stress. Also, never place the outdoor unit under direct sunlight. 

Your best options are terrace, balcony, or back of the sidewall. You could also use any external space with a strong wall. Make sure it can hold the heavy outdoor unit. Another consideration is to put the unit on a flat area. 

All the important parts of an AC such as condenser and compressor are within this unit. If it’s on a shaky or wobbly surface, it could cause a lot of vibration. Due to continuous vibration (particularly during hot months) when the AC is in non-stop usage, you could wind up with a damaged condenser or compressor. It’s one of the worst things that can happen to your air conditioner.

Distance Between the Indoor and Outdoor Units

The closer the two units, the more efficient performance you can expect. Ideally, the distance between the indoor and outdoor units should be no more than fifteen meters.

Bottom Line

These are some of the key aspects of a split air conditioner installation to keep in mind. By taking care of these small details; you can enjoy a well-performing unit for years.



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