HVACR Learning Network

Electrical Theory: Start Relays Webinar Replay

This webinar will provide you with a fundamental understanding of start relays. You can reference Electrical Theory and Applications for HVACR published by Esco Institute.

Environmental Regulations Webinar

Environmental System Solutions Webinar

EPA Section 608 Practice Tests

These free practice tests will help you to prepare for the EPA Section 608 examination! There are 50+ questions for each section (Core, Type I, Type II & Type III) as well as a simulated Universal exam. (100 questions, 25 questions in each section)

Expansion Device Characteristics Part 1: Fixed Orfice Webinar Replay

This webinar will cover the characteristics of both fixed and adaptive expansion devices including, piston/simple orifice, cap tube, TXV and EEV's. Part 1 of a 3 part series.

Expansion Device Characteristics Part 3: Electronic Adaptive Webinar Replay

This webinar will cover the characteristics of both fixed and adaptive expansion devices including, piston/simple orifice, cap tube, TXV and EEV's. Part 2 of a 3 part series.