Cold plenums are generally controlled at:

Cold plenums are typically controlled at 55 degrees Fahrenheit to ensure optimal functioning of HVAC systems and maintain comfort levels in conditioned spaces. The design of cold air systems focuses on distributing cooled air efficiently without causing discomfort or condensation issues.

At this temperature, the system can effectively manage humidity levels and improve energy efficiency. If the temperature were set lower, it could lead to excessive cooling, potential condensation, and increased energy consumption. Conversely, higher temperatures may not provide sufficient cooling, making it less effective in maintaining desired indoor climate conditions. Therefore, setting the cold plenum at 55 degrees strikes a balance between comfort and energy efficiency, which aligns well with standard HVAC practices.