Airflow management - Articles - Page 7

Ruskin Co.: Automatic Balancing Damper

March 20, 2017

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.

Hunting for Airflow Restrictions with Static Pressure

You have to identify the location of the airflow problem

David Richardson

March 6, 2017

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.

Five Important Factors Influenced by Proper Airflow

Don't be an airflow phony

David Richardson

January 30, 2017

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.

Alnor: Constant Airflow Regulator

December 12, 2016

The RACAV operates without a power supply and can be used for intake and exhaust installations in comfort and industrial ventilation.

Duct Dynasty: Plotting Fan Airflow Using Manufacturer Fan Tables

David Richardson

August 29, 2016

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.

Fluke’s 922 Airflow Meter/Micromanometer is one tool capable of taking static pressure readings. These readings are essential for evaluating a system’s health and exposing poor installation practices.

How and Why You Should Conduct Static Pressure Readings

Members of The NEWS’ Trainer Panel detail the importance of static pressure readings

Nick Kostora

June 20, 2016

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.

MacroAir Enhances Airflow Visualization Service

AirViz is a 3D simulation service that allows customers to see various airflow scenarios

June 9, 2016

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.

AMCA Publication 600, Application Manual for Airflow Measurement Stations, Revised

Application guide is intended to assist designers and users

April 8, 2016

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.

Refrigerated Food for Thought: Airflow and Air Distribution in Refrigeration

Selection and placement of the correct equipment is critical

Jim Coats

March 21, 2016

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.

FIGURE 1: Condensing temperatures and pressures will vary with coil surface area size and EER, just as evaporator temperatures and pressures will.

The Professor: In Spring, Thoughts Turn to Troubleshooting

Spotting problems now will help you get a/c systems ready for cooling season

John Tomczyk

March 7, 2016

Checking temperatures in and out of the air conditioning coil is an important part of preparing a residential air conditioning system for the season. This article will cover how checking temperatures through an evaporator coil can tell a service technician if there’s a problem in the air-handling system or refrigerant system. It will also cover other general troubleshooting areas.