Three best practices to ensure air distribution systems meet requirements STAYING ON TOP BY MARK TERZIGNI hen it comes to remaining successful and competitive in the HVAC industry, change is not optional, but a necessity. Industry growth is forecast to continue well into the future, technology and innovation appear to be having a significant impact on HVAC operations and profes-sionals are consistently adapting to new technolo-gies, technical standards and processes that improve efficiencies and increase results for customers. The only constant is change. And the only way to effec-tively manage change is to know the construction process requirements and develop strong collabora-tion and communication skills with the construction professionals involved in the project. It is beneficial for contractors to be familiar with best practices and industry methods when working with engineers and design professionals to ensure an air distribution system meets the appropriate require-ments. The following are a few best practices to keep in mind: W time to fully understand how all the pieces fit together and how the whole system works. The truth is pieces don’t always fit according to de-sign specifications. The benefit of everyone involved knowing the fundamentals is every member can com-municate in real time to make immediate adjustments or offer solutions to the team — ranging from substi-tuting fittings and layout modifications to fan connec-tion system effects and right-sizing the system. The advantage of understanding both the design and construction of a project is more open collaboration between the team, better preparation for problem solv-ing and improved efficiency in time, cost and materials. This better understanding frees up crucial time and allows the team to answer the questions: Where can I save money without impacting performance? Which components are needed to do the job right? What are my options for fabrication based on the design? At the most basic level, contractors follow the duct construction process to: > Verify the pressure class > Check corresponding tables in the SMACNA standards > Determine the gauge of metal and reinforcement spacing options > Check joint and intermediate reinforcement tables in the SMACNA standards Keeping to the construction timeline is often critical, but challenging as well. Contractors that understand the design of the system can anticipate issues and how parts are supposed to fit together, enabling them to offer input on how a drawing needs to be adapted for the construction site. And typically, designers and engineers have fundamental goals for HVAC projects, such as: > Designing an energy-efficient HVAC system that delivers the proper amount of air to specific areas 1. FUNDAMENTALS ARE MORE THAN BASIC It may seem like common sense, but it is criti-cal for general contractors, engineers and designers to understand the fundamentals of HVAC design and construction. Having this basic understanding enables the team to effectively work together and complete projects as intended. So often, professionals have mas-tered their own area of expertise, but haven’t taken the From top: Collaboration and communication between team members involved in the design and build process help enable innovation. > As new technologies are introduced, it is important for professionals to have a clear understanding of the process — especially as automation becomes more mainstream. 14 HVAC & Plumbing Product News \ Spring 2019 HVACPproducts.com