Refrigeration - Articles - Page 29

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.

Refrigerant Transition is Top of Mind at AHR Expo

Panel discussion covered the new efficiency standards, labor shortages, and supply chain issues as well

Joanna R. Turpin

February 26, 2023

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At the AHR Expo, a panel of HVACR industry experts discussed the refrigerant transition and supply chain issues, as well as the labor shortage and the new efficiency standard.

EPA Accused Of Stalling on Refrigerant Cylinder Ban Concerns

Congressman asks EPA to respond to petitions regarding phaseout of disposable cylinders

Joanna R. Turpin

February 22, 2023

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Congressman James Comer sent a letter to EPA, asking the Agency why it has not responded to petitions from Worthington Industries and others, regarding its proposed ban on non-refillable refrigerant cylinders.

Troubleshooting Defrost Timers

A faulty defrost timer in a refrigeration system can lead to problems

Joe Marchese

February 21, 2023

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Technicians should learn how to troubleshoot defrost timers, as they can be the culprit if a freezer that uses an electric heater as its supplemental heat source has a frozen evaporator coil.

Troubleshooting Potential Relays

A malfunctioning relay can damage the compressor, so techs must understand the warning signs

John Tomczyk

February 15, 2023

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If a potential relay is malfunctioning, the compressor motor is in danger of not starting, stalling, locking rotor, or even burning out. That is why technicians should understand how to troubleshoot potential relays.

Danfoss Expects Modest Growth In 2023

Energy efficiency, as well as decarbonization and electrification, are major trends

Joanna R. Turpin

February 8, 2023

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Danfoss hosted its 27th annual press breakfast at the AHR Expo, offering insights into the current and future state of the company, as well as the HVACR industry.

Don Fort and intelliGen Refrigeration Controller

Basic Refrigeration: Thermodynamics of Heat Transfer

First in series describes how temperature and pressure changes affect refrigerant

Don Fort

February 1, 2023

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Technicians should understand how heat transfer works in a refrigeration system, as well as the four laws that describe how temperature and pressure changes affect the state of refrigerant in a sealed piping system.

How To Solve The Refrigeration Technician Shortage

An NASRC report details ways to improve recruitment, training, and retention

January 31, 2023

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NASRC has released a report summarizing the commercial refrigeration industry’s increasingly critical technician shortage.

The Refrigerant Transition Picks Up the Pace in 2023

Industry experts offer their views on the state of refrigerants this year

Joanna R. Turpin

January 24, 2023

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The HVACR industry is undergoing another refrigerant transition and industry experts offer advice about what contractors need to know about the transition, as well as how to prepare for it.

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.