Developing and Maintaining a Program Advisory Committee

This course is to help educators and administrators, develop, and maintain an effective program advisory committee.

Direct Current Electrical Systems (I-P)

This course discusses the fundamentals of direct current (DC) electrical systems. Upon completing this course, you will be able to: Differentiate between direct current (DC) and alternating current (AC) electrical systems;

Discharge Pressures In Refrigeration Systems Article (with Audio)

When servicing refrigeration systems, performing preventive maintenance, and ensuring that equipment is operating according to design, technicians can employ a straightforward approach to determining what the proper discharge pressure in the system s

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