Do you have a pre-existing wall sleeve? Here are some things you’ll need to know about wall sleeve replacement A/Cs:
First, remove any covering over the sleeve. Make sure you're able to see through to the outside; this way, you know the air conditioner you’ll place in the sleeve will be breathing properly. Remember, it must be a rear breathing air conditioner. Next, get the dimensions of the sleeve by measuring its height, width, and depth. Ideally, the air conditioner should fit in the sleeve perfectly. If the air conditioner doesn’t fit, a universal fit rear breathing air conditioner is a good solution. They’re designed to fit 95% of all the sleeves ever manufactured. Once the universal air conditioner is placed inside your existing sleeve, there may be extra space on the sides and top between the sleeve and unit. These gaps should be filled with foam and covered with the supplied frame. With the frame installed, you will have a beautiful, finished look.
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