When purchasing an air conditioner, it's also important to know how to install it. Generally, there will be installation experts. Let's take a look at the steps for air conditioner installation. 1. Place the indoor unit. Position the air conditioner indoor unit at the pre-designed location. Handle it with care, avoiding any knocks to the machine. 2. Install the bracket. First, measure the bracket size, then estimate the installation position on the wall. When installing the bracket, it must be placed horizontally, not tilted, and the bracket must be securely installed to ensure the air conditioner does not fall off.