Installing a window air conditioner is a pretty simple project and doing it correctly will make sure your AC is safe and working properly. First make sure you have a grounded three prong outlet. Make sure there is nothing outside the window that will affect air flow. Measure your window opening and have an idea of the size of the room you want to cool.

Once you have your air conditioning unit, clean both sides of the window before installing. Unbox the AC unit, but keep the packaging for storage in the off season. Align the top rail with the holes on the AC unit and attach with the included screws. For the side filler panels, gently extend the panel, and insert the end all the way into the track. Insert the frame ends into the rails on the cabinet. Do the other side the same way.

Set the unit in the window, making sure the bottom rail is against the outside edge of the window sill or frame. Lower the sash behind the top rail. Attach the side panels to the window frame. With the frame extended, position the lock, drill a pilot hole, and set with a screw. Drill holes and drive screws in the other clip and in the frame along the sash.