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Home » Keywords: » TXV (thermostatic expansion valve)

Items Tagged with 'TXV (thermostatic expansion valve)'

ARTICLES

Heatcraft-3.jpg

The Trouble with TXVs: Diagnosing the Problem

Technicians need to be patient when adjusting TXVs in refrigeration systems
Justin Bailey
December 8, 2022
No Comments

At one time or another, every technician has run into a refrigeration system that is not functioning properly. The question then becomes how to diagnose and determine if the problem is the TXV.


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Refrigeration Evaporator.

Proper Superheat Can Protect Compressor From Damage

Technicians should make sure that liquid refrigerant is not entering the compressor
Headshot tomczyk john
John Tomczyk
September 28, 2022
No Comments
One of the worst enemies of a compressor is liquid refrigerant, so technicians should make sure the refrigeration system has proper superheat in order to protect the compressor from damage that can occur from flooding or slugging.
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Gas Ballast.

Gas Ballast in Vacuum Pump Aids Evacuation

Proper evacuation ensures no atmospheric air remains in a refrigeration system
Headshot marchese joe
Joe Marchese
September 3, 2022
One Comment
Proper evacuation of a refrigeration system is an important part of repairing or installing a unit, and the gas ballast in the vacuum pump helps improve the process.
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Professor-JohnTomczyk1.jpg

Reasons Why TXVs Underfeed Refrigerant

A refrigerant undercharge may be due to TXV restriction
Headshot tomczyk john
John Tomczyk
August 30, 2022
No Comments
Technicians need to make sure that the TXV is not underfeeding refrigerant to the refrigeration or air conditioning system due to a restriction, which can be caused by a number of factors.
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TXV.

Reasons Why TXVs Overfeed Refrigerant

Proper TXV settings will keep refrigeration and air conditioning systems operating efficiently
Headshot tomczyk john
John Tomczyk
July 27, 2022
No Comments
Making sure the TXV is metering the right amount of refrigerant into the evaporator and is not overfeeding the coil is one way technicians can help their customers’ refrigeration and air conditioning systems operate safely and more efficiently.
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Evaporator Installation.

Determining the Cause of a Restricted Liquid Line

Restrictions can starve refrigeration components of refrigerant, resulting in system problems
Headshot tomczyk john
John Tomczyk
June 28, 2022
No Comments
Liquid line restrictions cause the evaporator, compressor, and condenser to be starved of refrigerant, causing performance problems in refrigeration systems.
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TXV

Installing Thermostatic Expansion Valves

Don’t assume the TXV is properly adjusted from the manufacturer
Headshot marchese joe
Joe Marchese
April 26, 2022
No Comments
As the old saying goes, an ounce of prevention is worth a pound of cure. This is especially true when a replacing a thermostatic expansion valve (TXV).
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This diagram shows the forces of the TXV's flexible diaphragm.

Make Sure the TXV Remote Bulb Is Properly Placed

Poor thermal contact with the suction line can cause problems
Headshot tomczyk john
John Tomczyk
January 26, 2021
2 Comments
This article will explore the remote bulb and its proper placement on a system’s suction line.
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John-Tomczyk

Overcharge Symptoms Differ Due To Metering Devices

TXVs, AXVs, and capillary tube systems will have varying evaporator pressures
Headshot tomczyk john
John Tomczyk
September 23, 2020
No Comments
There are varying types of symptoms that can occur when a refrigeration system has an overcharge of refrigerant.
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TXV Brazing and Soldering

Why Is a Refrigerant Distributor Needed?

Technicians should understand the function of this component
Headshot marchese joe
Joe Marchese
September 17, 2020
No Comments
Understanding the purpose of the distributor and how to properly size and install these components can be helpful to any refrigeration technician.
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More Articles Tagged with 'TXV (thermostatic expansion valve)'
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