Joe Marchese Articles

Why Is a Refrigerant Distributor Needed?

Technicians should understand the function of this component

September 17, 2020

Understanding the purpose of the distributor and how to properly size and install these components can be helpful to any refrigeration technician.

Where To Install the Liquid Line Sight Glass

Refrigeration technicians may differ on the best location

Joe Marchese

August 29, 2020

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Ask several refrigeration technicians about the best location to place a sight glass, and you will probably get several different answers.

You’re Only as Good as Your Last Service Call

Always stay in control of the repair process and maintain a professional attitude

Joe Marchese

August 8, 2020

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Repairing refrigeration equipment — or, really, any equipment — has a huge customer service component.

Working With an Unknown Refrigerant

This can be a difficult, and potentially costly, scenario

Joe Marchese

July 3, 2020

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When working on a refrigeration system, technicians may occasionally come across one where the type of refrigerant is unknown.

Several Options Available to Connect Copper Tubing

Brazed and pressed connections both have advantages and disadvantages

Joe Marchese

May 26, 2020

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Today, the use of pressed connections for joining both hard drawn and soft copper tubing is gaining popularity for many reasons.

Remaining Productive During Your Downtime

Take this opportunity to make sure your tools and truck are in tiptop shape

Joe Marchese

May 3, 2020

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What can a refrigeration technician do during this downtime? One great option is to take this opportunity to enhance your knowledge of the trade.

Understanding Low-Pressure Controls in Refrigeration Systems

When added, they control and protect the compressor

Joe Marchese

April 10, 2020

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When working on a system, it is important to determine how the low-pressure control is being used and make sure it is properly set.

HOW-TO

Checking airflow across an evaporator during a service call

Joe Marchese

March 30, 2020

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How important is airflow across an evaporator in a properly operating air conditioning system? If you ask a wide range of technicians you are likely to get many different answers, but the general consensus would likely be that it is important.

Determining the Cause of Higher-Than-Normal Discharge Pressure

Identifying the underlying reason for this condition can be tricky

Joe Marchese

March 9, 2020

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Refrigeration systems operating at a higher-than-normal discharge pressure can be the result of several different issues.

Verifying a Proper Pump Down

Following correct procedure can prevent damage to compressor

Joe Marchese

February 10, 2020

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Refrigerant migration can be damaging to a compressor. The refrigerant migrating back to the compressor can possibly slug the component.

Articles by Joe Marchese

Why Is a Refrigerant Distributor Needed?

Where To Install the Liquid Line Sight Glass

You’re Only as Good as Your Last Service Call

Working With an Unknown Refrigerant

Several Options Available to Connect Copper Tubing

Remaining Productive During Your Downtime

Understanding Low-Pressure Controls in Refrigeration Systems

Checking airflow across an evaporator during a service call

Determining the Cause of Higher-Than-Normal Discharge Pressure

Verifying a Proper Pump Down

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