A few months ago, I wrote a Duct Dynasty article on the ideal duct system. The most frequent comments and questions I received about this article were regarding branch takeoffs. So, I thought it would be fun to take a deeper look at branch duct takeoffs and how to overcome some of the most common problems associated with them.
The Model ABD-SEA-E provides precise and automatic airflow regulation for supply or exhaust ventilation systems in any residential or commercial building. It is designed for use in any HVAC application with a static pressure between 0.2 and 2.0 inches water column.
How good are you at hunting airflow restrictions? Do you have a game plan or is it just guesswork? Let’s take a look at some ways you can more effectively hunt down pesky airflow restrictions that could be plaguing your customers’ HVAC systems.
Just because our industry talks about proper airflow, it doesn't mean we’re doing much to address it. Airflow must be measured, plain and simple. Duct design and duct tightness won’t assure proper airflow.
If you’re in doubt about how a fan was rated, dig a little deeper into the footnotes and a lot of questions will be answered. As you become a student of fan-performance tables, you begin to see truths about airflow that enable you to solve issues beyond the skill level of your competition.
The NEWS’ Trainers Panel consists of some of the best HVAC educators, instructors, and trainers from across North America. Their insights will be used to answer technical questions from the field and suggest solutions to everyday problems faced by technicians.
AirViz, MacroAir’s airflow simulation service, has been overhauled to provide automated custom visualizations. This enables customers to see how high volume, low speed (HVLS) fans would move air in their facility before purchasing and installing an HVLS solution.
Air Movement and Control Association (AMCA) International Inc. has announced the revision of AMCA Publication 600, Application Manual for Airflow Measurement Stations. The new designation is AMCA Publication 600-16.
It is my firm belief that airflow and air distribution is every bit as important in refrigeration design as load calculations. What good is a properly sized system that can’t deliver the air to areas that need it? Poor air distribution and airflow lead to stratification in temperature and humidity as well as poor heat transfer.