A Step-by-Step Guide to Air Conditioner Installation

An air conditioner is a device that helps maintain a comfortable temperature and humidity in a room. Installing an air conditioner may seem like a daunting task, but with a step-by-step guide, you can complete the task yourself. Even by following the instructions, you can make a lot of mistakes, so the best solution is to contact air conditioner services.  

Step 1: Preparation

Before installing the air conditioner, you need to prepare the place for its installation and choose the type of device that is most suitable for your room. You also need to buy all the necessary materials and tools for installation. Below is a list of necessary tools:

  • Screwdriver.
  • Pliers.
  • Pipe cutter.
  • Level.
  • Drill.
  • Bolts and wrenches.
  • Insulating tape.

Step 2: Installing the Outdoor Unit

Before installing the outdoor unit, you must determine where to install it. The outdoor unit should be installed in a location where it will not interfere with surrounding objects or people. The following are the steps for installing the outdoor unit:

  • Install the bracket for the outdoor unit on a wall or other suitable surface.
  • Mount the outdoor unit to the bracket and secure it with bolts and wrenches.
  • Connect the power supply to the outdoor unit and run the piping to connect the outdoor unit and indoor unit.

Step 3: Install the Indoor Unit

Depending on the type of indoor unit selected, the installation processes may differ. Below we provide a list of steps for installing each type of indoor unit.

  • Cassette unit: Check the load capacity of the ceiling and whether the cassette unit can be installed in it. Mount and connect the ceiling box that serves to install the cassette unit. Install the cassette unit in the ceiling box and secure it in place. Connect the power supply and pipe the air conditioner.
  • Wall-mounted unit: Determine the installation location for the wall-mounted unit and mount the bracket on the wall in the selected location. Place the indoor unit on the bracket and secure it with bolts and wrenches. Connect the power supply and run the piping to connect the indoor and outdoor units.
  • Duct unit: Check the possibility of installing the duct unit and determine the installation location. Install the ducts to be used for piping and electrical wiring. Install the duct unit and secure it with bolts and wrenches. Connect the electrical power and run the air conditioner piping.

Step 4: Startup and Setup

Once the outdoor and indoor units are installed, you need to start up the air conditioner and set it up for optimal performance. Here are the basic steps for starting and setting up the air conditioner:

  • Connect power to the air conditioner and turn it on.
  • Set the desired temperature and operating mode on the air conditioner.
  • Check the operation of the air conditioner and make sure that it works without any problems. If necessary, adjust it for optimum performance.
  • Check the freon level and add more if necessary.
  • Clean the air conditioner filters and check their condition. If the filters are dirty, replace them with new ones.


Installing your air conditioner may seem like a daunting task, but with a step-by-step guide and the right tools, you can complete the task yourself. You can always call for expert help if needed. Don't forget about regular maintenance of your air conditioner so that it works in the most efficient and long-lasting way.

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