How are the line sets installed, and where do they go?

During installation, an indoor unit is mounted to one of your exterior walls. A 3‑inch hole is drilled through the wall, which connects the unit to the line set, condensate drain, and wire that power it. This line set runs outside your home to the nearest outdoor unit and is hidden in a line hide. You can work with your installation team to determine the line set placement to balance both aesthetics and proximity.