Dual-Duct and Multizone All-Air Systems (I-P)

This course explains the operation of dual-duct and multizone systems and describes their application through examples. It also describes their summer and winter operations, and outlines design approaches to meet seasonal demands.

EEV Fundamentals Article (with Audio)

The basic concept of the metering device and fluid flow in a mechanical refrigeration system hasn't changed since its development, but employing an EEV ensures that equipment will operate efficiently. Includes audio so you can listen to the article.

Did You Know Episode 1: A2L Refrigerants Aren't New

Did You Know Episode 2: You Can Size a Ductless System

As the world makes a stance on De-Carbonization and the use of variable capacity, high efficiency HVAC systems there has to be an accepted standard for system design and selection. The gold standard has always been the ACCA association, and now more

Did You Know Episode 3: Your Insulation May Be Causing Pinhole Leaks

Have you ever wondered why some copper tubing develops pinhole leaks in a short amount of time and others last decades without a single surface leak? That is a debate/concern that has plagued the industry in recent years and this week we will discuss

Did You Know Episode 4: IAQ is Only Part of the IAE

In this episode we take a deep dive into the world of Indoor Air Quality, but from a slightly different perspective. We are becoming more aware of the effects of tighter sealed homes and increased levels of Volatile Organic Compounds. In response to