Refrigeration service - Articles - Page 2

Preventing Leaks In Refrigeration Systems

Refrigerant is expensive, so be on the lookout for potential leaks

November 21, 2023

While servicing equipment, technicians should be on the lookout for sources of potential future leaks, as well as follow good service practices to prevent creating leaks.

Troubleshooting Electronic Temperature Controls

Repairing reach-in coolers and freezers with these controls can be challenging

Joe Marchese

September 27, 2023

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Repairing reach-in coolers and freezers with electronic temperature controllers can be challenging at times.

Trades School Opens Dallas Metro Campus

September 21, 2023

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The Dallas Metro TWS campus will offer professional welder and refrigeration technologies programs in addition to an all-new electrical lineworker program.

Ignoring Advice on Nitrogen Purging Can Mean More Headaches for HVACR Contractors

Nitrogen purging while brazing refrigerant tubes takes only a few extra minutes, but many installers don’t recognize its importance

Brian Henderson

June 3, 2023

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A nitrogen purge is a simple HVAC process that will save money in the long run and keep customers happy.

Understanding Direct Expansion Evaporators

Refrigeration equipment can utilize several different kinds of evaporators

Joe Marchese

June 2, 2023

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One of the major components in any refrigeration system is the evaporator, and there are several types of direct expansion (DX) evaporators that can be used.

Basic Refrigeration: Major Components in the System

This second part of the series describes what techs need to know about components

Don Fort

April 30, 2023

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In order to install or diagnose issues in a refrigeration system, technicians must first have a solid grasp of its key components.

Solving the Technician Shortage Problem

Finding skilled refrigeration techs is difficult, so NASRC is tackling the issue

Joanna R. Turpin

March 30, 2023

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There are advantages and disadvantages to being a refrigeration technician. The industry needs to work together to reduce the disadvantages and expand the opportunities, so that people want to make a career in refrigeration service and installation.

Checklists Can Help Determine What Is Causing the Problem in a Refrigeration System

Confusing High-Side Temperatures

John Tomczyk

March 22, 2023

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There are several reasons why the compressor discharge temperature of a refrigeration system can be high when the condensing temperature is not, and a checklist can help a technician figure out the root problem.

NASRC Offers Free Natural Refrigerant Training Summit

The 3-day event for refrigeration technicians will cover CO₂ and propane installation/service

February 27, 2023

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NASRC is hosting its first-ever Natural Refrigerant Training Summit in Irwindale, California from April 4-6, 2023.

The Definitive Guide to Temperature Glide, Part 2

Always consult the P/T chart when calculating superheat and subcooling for refrigerant blends

John Tomczyk

January 20, 2023

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Service technicians need to be careful when reading the pressure/temperature chart because if they choose the wrong values, they will make mistakes diagnosing the system.