True or False: Units may be sized in accordance with ACCA Manual S?

The statement that units may be sized in accordance with ACCA Manual S is true. ACCA Manual S is a widely accepted guideline used for the selection and sizing of residential and light commercial air conditioning systems. It provides detailed procedures for determining the appropriate equipment size based on various factors such as building structure, insulation, windows, and local climate conditions.

Using Manual S ensures that the selected equipment will operate efficiently and effectively, allowing for optimal performance and comfort in the space being conditioned. Additionally, it helps to prevent issues related to oversizing or undersizing HVAC units, which can lead to inadequate heating or cooling, increased energy costs, and shortened equipment lifespans. The relevance of this manual is not limited to only residential or commercial applications, but it is applicable across various HVAC installations, making it a foundational resource for HVAC professionals.