HVAC Journeyman Practice Exam 2025 – Complete Study Guide

In an evaporative cooling system, compliance with SMACNA (Sheet Metal and Air Conditioning Contractors' National Association) standards is essential because these guidelines provide specifications for the proper design, construction, and installation of air delivery systems. Following these standards ensures that air ducts are constructed with materials and methods that optimize airflow efficiency and maintain proper pressure, thereby enhancing the overall performance of the cooling system. These standards also address safety considerations and help to maintain air quality, which is critical for the effectiveness of evaporative cooling.

While insulation, dampers, and airtight construction can be important depending on specific system requirements and local codes, adherence to SMACNA ensures compliance with industry best practices and standards, making it a foundational requirement for the air ducts used in evaporative cooling applications.