Some common tools used in air conditioning installation are screwdrivers, a torpedo level, adjustable wrenches, a drill and wire strippers. These tools are commonly used to install ductless mini-split air conditioning units. However, if the unit in question is a simple window air conditioner, the installation process can be completed with nothing more than a drill, screwdriver, level and tape measure.
To install a ductless mini-split air conditioning unit, begin by marking the area on the wall where the mounting brackets, refrigeration lines, condensate discharge line and electrical cable are to be installed. The mounting brackets should be level with one another. Next, bore the holes through the wall for the various lines and electrical cable using the drill. Mount the unit onto the brackets, and thread the lines and cables through the holes in the wall. Follow the manufacturer directions on the unit's packaging when hooking the various lines and the electrical cable to finish the installation process.
For a window air conditioner unit, raise the bottom window sash, and insert the unit into the window. Hold the unit steady, and slowly lower the window sash until it rests firmly on the flange on top of the air conditioning unit. Screw or slip the flange to the window sash by following the manufacturer's directions for installing the air conditioning unit. Do the same for the retractable screens on either side of the unit to anchor them to the sides of the window sill.