Window AC / September 14, 2018 / Aubrette Dumoulin
The answer is It depends on the wall thickness. Sleeve specifications for some window air conditioner manufacturers include the maximum wall thickness before it will cover part of the louvers. For example Amanas 18000 BTU models have a max of 8.5 inches. If the wall thickness is at or below that these models can be used in as a wall air conditioner without adversely affecting function. So whats the problem if the wall covers a little of the louvers? Two things: 1) restriction of air movement and therefore reduced efficiency and 2) these units pull air in very powerfully. Cut wall edges could become loose allowing material to be sucked into the unit and potentially causing damage.
When purchasing a window air conditioner it is very important to purchase one with the proper cooling capacity. An air conditioner that is not properly sized will not work as efficiently as one that is sized properly. This is one of the most common mistakes made when selecting air conditioners. Use an air conditioner size calculator to select the proper sized unit for the room you want to cool. Undersized air conditioners will run continuously and not cool the space adequately and an oversized unit will cycle on and off too often. This increases equipment wear and can actually cause fuses to fail.
These extenders will fill the space between the unit and the edges of to keep air from leaking out. Youre now ready to open the window from the bottom pain and have your helper raise the A/C into position. Rest the A/C on the window sill and slide the extensions out to fill any gaps. Check the instructions provided with your A/C for the what the correct placement is for your specific appliance. Most air conditioning units should tilt outward to drain any condensation that may accumulate on it. Finally you will fasten the brackets and lower the window pain back to the top of your machine. Sometimes it is wise to fasten the upper window pane in place to avoid movement of your A/C.