What could be the reason for low discharge static pressure on a new split system that is properly charged?

When diagnosing low discharge static pressure in a new split system that is properly charged, a potential reason is that the zone damper system is not energized. In a zoned air conditioning system, zone dampers control the airflow to various areas of the home. If the dampers are stuck in a closed position or are not functioning due to a lack of energy, the airflow from the air handler will be restricted. This restricted airflow can result in lower static pressure at the discharge point, affecting the overall system performance and comfort in the conditioned space.

In this scenario, while other factors may influence static pressure, the focus is on the operational status of the zoned dampers. Understanding that all components must be functioning properly, including electrical parts, is key to maintaining adequate pressure levels in the system. This highlights the importance of ensuring that all auxiliary systems, such as the damper controls, are energized and operational for optimal system performance.