Everyone knows that the only way to ensure the optimal performance of an air conditioning or heat pump system is to install it correctly in the first place and then maintain it properly. A system that is not installed or maintained properly will result in reduced efficiency, less humidity control, and less comfort for the occupants.
With the transition to 13 SEER, there is an increased focus on making sure the more costly, higher efficiency systems are installed properly. It is well known that the larger sizes of both the indoor and outdoor coils could possibly be a challenge in new installations and retrofits. Given the potentially more labor-intensive nature of a 13 SEER installation, some contractors may overlook the other important aspects of a quality installation.