HVACR Learning Network

Comfort Cooling Refrigeration System Troubleshooting Video

In this 25-minute video training program, gauges and temperature/pressure charts are used to explain the proper methods to follow when evaluating and charging a fixed-bore metering device refrigeration system.

CPR Valves In Refrigeration Systems Article (with Audio)

One aspect of evaluating the operation of a refrigeration system is understanding how a Crankcase Pressure Regulator functions to maintain proper suction pressure on a hot pull-down. Contains audio so you can listen to the article.

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

EPR Valves In Refrigeration Systems Article (with Audio)

Evaluating Refrigeration Systems: Troubleshooting & Identifying Problems Video

This 35-minute video training program discusses the topics of identifying refrigerants, oil compatibility issues, what the suction and discharge pressures should be, and how to use manufacturer’s charging charts.

Selecting Refrigeration System Components

Presented by Joe Marchese, CMS, RCT