Also, you want to reduce the number of wall studs you have to remove to make the job easier.Once you locate 3-4 wall studs, mark them on the drywall with an X using a pencil.Then, measure the width of your through the wall air conditioner and transfer that measurement to the wall where the studs were marked. The typical AC unit is secured to its bracket using nuts and bolts tightened with a socket wrench.If the AC unit has any additional exterior mounting braces, install them per the manufacturer's instructions.Run a generous bead of caulk between the outside of the unit and the exterior shingles or clapboards.Use a handsaw and miter box to cut appropriate length molding at 45 degree angles and secure it in place with finishing nails around the unit. An AC unit mounted in a wall provides more security than a window-mounted unit, and it doesn't prevent full usage of a window. From the outside of the house, use the holes that were drilled to stencil an outline on the wall. A wall-mounted air conditioning unit is an effective way to cool your house and beat the summer heat. How to Install an AC Unit in the Wall. The procedure isn't as hard as you might think, but it will take a bit of patience and preparation to get the job done right.

The first step is to mark out the wall to cut an opening. Simply pull out the old and slip in the new.

If you encounter any electrical wires inside the wall opening you will need to have them rerouted by a licensed electrician before proceeding.From the inside of the house, use a power drill to bore through the outside wall at each of the 4 corners.

They're quiet, efficient, and will keep you cool! Select an unobstructed location on your interior wall to mount the indoor unit. Apply silicone caulk to rear flange on wall vent. Twist and lock the flexible duct to the exhaust port on rear of air conditioner unit. All Rights Reserved. In this guide, we walk you through the steps to install a through-the-wall air conditioner quickly and on your own, so you can start cooling off quickly. The AC unit should be positioned so that only one stud needs to be cut. 2. A prime location is one that is 24 to 48 inches off the floor, near the center of the room, and close to an electrical outlet. This will minimize the amount of dust that the air filter collects from the floor and prevent condensation from forming on the ceiling if it was to be installed too high.Walls are built and supported by wall studs (2 x 4 lumber) and they’re usually 16 inches apart.After you select a location for your appliance, you need to mark the studs so you know where you can start cutting through the drywall. Cut the stud. You’re going to be cutting through the wall in the next step and you don’t want to accidentally cut through electrical wires and get shocked.To power your saw and drill, run an extension cord from another room that still has electrical power.Using the supplied guide paper or sleeve, trace around the outline so you can mark the opening for the air conditioner on the wall.Make sure that your outline is level by using your level tool during the marking process.Then, make another outline that’s 2 ½ inches larger than the existing outline.