When replacing A/C components in a split-system air conditioner, it’s important to ensure that the two main components, the indoor evaporator and the outdoor condensing unit, match correctly. While the best option is to replace the entire system, which guarantees that the components match, this isn’t always within your budget. If you have a split-system air conditioner and need to repair rather than replace it, make sure you look at three main factors to ensure a true fit. These include: