You purchased a window air conditioner to cool your room or apartment. Now what? Time to install it! Luckily, it only takes a few minutes and you'll be cool soon. Follow our step-by-step guide to make installing your window AC as easy as possible.

Before You Start
Step 1: Find the Center of Your Window
Step 2: Add Weather Strip if Provided
Step 3: Install Side Panels
Step 4: Lift Air Conditioner into Window
Step 5: Install L Brackets
Step 6: Extend and Connect Side Panels
Step 7: Secure Unit and Start Cooling

Before You Start

Make sure you select a window close enough to an outlet. Most window AC's have power cords between 5 and 6 feet long. See what side of the AC the cord extends from, and choose an outlet the cord reaches. Also have your owner's manual out to follow along with the manufacturer's directions. 

Required Tools

  • Screw driver
  • Measuring tape
  • Manufacturer-provided screws and brackets
  • Scissors (depending on the model)

Step 1: Remove Your AC and Find the Center of Your Window

Step 1: Find the Center of Your Window

Expert Tip: Be careful removing it from the box. The back of the unit can be sharp.

Remove all the pieces from your box to confirm all the parts were sent. Measure the width of your window, and mark the center with a pencil. Marking the spot will make installation easier and ensure the side panels evenly reach both sides of your window.

Step 2: Open and Prepare Your Window

Step 2: Add Weather Strip if Provided

Open your window. If a weather strip is provided from the manufacturer, install it now. These strips help block any air that may pass through tiny cracks and protects your window from possible damage when you're installing or removing of the AC.

Not all models will have these weather strips, and your AC will work fine without one.

Step 3: Attach the Side Panels 

Step 3: Install Side Panels

Slide the panels into the appropriate place on your unit. Slide them all the way in and then secure the adjustable panels into your window AC using provided screws.

Connect all the screws to avoid any gaps—which can let warm air, allergens, and pollution into your home.

Step 4: Insert Your AC in the Window

Step 4: Lift Air Conditioner into Window

Expert Tip: It’s best to use 2 people for this step. Even if you can lift it yourself, it's safer to have an extra set of hands to close the window and secure the AC. 

Pick up your AC and center it in your window. Then tightly close your window on top of the AC; there should be a spot where the window easily slides into place.

Most of the unit's weight will be outside, so be careful lifting it into place. Once you close the window, your AC should be securely in place. 

Step 5: Install L Brackets

Step 5: Install L Brackets

The hard part is done! Now you’re just securing everything and finishing up. Installations vary at this stage based on the manufacturer, but most models include at least one L bracket to hold the window securely in place. 

Screw the L bracket or brackets to the top of the opened window. This prevents the window from being pushed up, which is the main concern once window ACs are installed.

If your AC doesn't come with a bracket to hold your window in place, we highly suggest you use one from your tool collection.

Step 6: Attach Panels

Step 6: Extend and Connect Side Panels

If provided, add the window padding to the sides of your open window (top picture above). If no padding came with your model, just extend the side panels to reach your window (bottom picture above). Then attach both side panels to your window using the screws from your manufacturer. 

Step 7: Secure Unit and Start Cooling

Step 7: Secure Unit and Start Cooling

Select manufacturers provide brackets and screws that connect the AC to the interior window sill. This is an extra level of security, and some manufacturers don't find it necessary. But if they're provided, screw them in now. 

You're done! Plug in and turn on your AC. You should immediately feel it cooling your room. 

Additional Information

Keep in mind these are general tips for installing a window AC, and your model may have slightly different directions. We hope you enjoy your new window air conditioner. If you have any questions about installation or need to find the right window air conditioner for you, feel free to call our air conditioner experts at 1-800-934-9194.

Browse our Window Air Conditioner Knowledge Center for more information about using one to cool your home. 

Article via https://www.sylvane.com/how-to-install-a-window-air-conditioner.html

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