All Courses
NRI’s Refrigerant Reference Guide, 6th Edition, contains the latest information on R-22 alternatives, the 2010 EPA regulations, as well as all of the standard technical data on refrigerants, refrigerant blend behavior tutorial, retrofit procedures, and NRI products and services information that our Reference Guide is famous for.
The indoor fan is a critical component in every forced-air, space-conditioning system. The fan is the principal means for delivering conditioned air to a space, and therefore the effectiveness of the fan has a direct impact on system efficiency, perceived comfort level, and air quality in the space. There are a variety of fan types and arrangements, each with unique operating properties that lend themselves to particular applications and design requirements.
When it comes to finding leaks, having a firm grasp of gas laws (and accurate gauges) can help technicians get the job done faster and ensure a tight system.
Quite often, when you encounter a problem with a piece of HVAC/R equipment, the problem turns out to be electrical in nature. If you have a clear understanding of how to read wiring diagrams, you frequently can find the source of the trouble simply by checking the wiring of the unit itself against the manufacturer’s wiring diagram.
How to navigate the new JK Mechanical Team Portal
Electrical Basic Concepts - RSES NATE Prep. Volts, Amps, Ohms, ohms law, watts law, series and parallel circuits.
Common types of sensors used in JK Mechanical Building Automation Systems
User files for EasyIO Building Automation Systems
Equipment task lists for Commercial Service Planned Maintenances
What is professionalism and how it applies to your work relationships.
A series of presentations by JK Managers intended to inform the CRS team of our products and offerings
How to use the Team Portal for an On Call Calendar
Training videos on how Commercial Services will be using Office 365
Chris Leaman's semi-annual company address.