Installing a split system air-conditioning system can be a challenging task. It requires knowledge of electrical systems, pipework, and the ability to follow instructions.

But if you're willing to take the time and put in the effort, you can actually do it yourself.

Read on for a step-by-step guide to installing a split system air-conditioning system.

Step 1: Choosing Your Unit

The first step is choosing which type of unit is best for your home or office environment. There are two main types of split system ACs — single-zone systems and multi-zone systems — each with its own defining properties.

Single-zone AC systems are basically just one unit that is responsible for cooling or heating a single room. They have a single outdoor unit and an indoor air handler.

Multi-zone systems, on the other hand, are more complex. They allow you to control the temperature in different rooms or zones. These systems often require more than one outdoor unit and multiple indoor air handlers — one for each zone you want to control.

As such, single-zone systems are typically more affordable but have limited cooling capacity, while multi-zone systems are more expensive but offer greater cooling power due to their multiple outdoor units.

Additionally, you should consider the size of your space when selecting an AC unit, as well as any local building codes that may apply. Some local areas may require you to use special wiring and materials to pass inspection.

Step 2: Preparing Your Space

Once you've chosen your unit, you'll need to prepare your space for installation. This includes measuring the area where the indoor and outdoor units will be installed and ensuring adequate ventilation (if needed). Ventilation helps prevent excessive moisture from building up inside the unit.

You should also determine where to place the air handler, usually mounted near a window or an external wall. This is especially important for multi-zone systems, as each air handler must be placed in the respective zone you wish to control.

Step 3: Installation Process

Now comes the fun part — installing your AC unit. First, mount your indoor and outdoor units according to manufacturer specifications. Then connect piping from the indoor unit to the outdoor condenser using approved materials only (check with local regulations).

Once you complete this step, run an electric conduit from an existing junction box or circuit breaker panel if one isn't already present (again, check with local regulations). Finally, attach wires between indoor and outdoor units as per manufacturer instructions before turning on the AC unit and testing it out.

While these steps might seem simple, that's not always the case. It's best to always consult with an HVAC technician for help throughout the installation process if you're not entirely sure about what you're doing. 

Find out more about air conditioning installation services.