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Home » TXV (thermostatic expansion valve)

Articles Tagged with ''TXV (thermostatic expansion valve)''

TXV

Installing Thermostatic Expansion Valves

Don’t assume the TXV is properly adjusted from the manufacturer
Joe Marchese
April 26, 2022
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).
Read More
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
John Tomczyk
January 26, 2021
This article will explore the remote bulb and its proper placement on a system’s suction line.
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The Professor John Tomczyk

Overcharge Symptoms Differ Due To Metering Devices

TXVs, AXVs, and capillary tube systems will have varying evaporator pressures
John Tomczyk
September 23, 2020
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
Joe Marchese
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.
Read More
Basic Refrigeration Cycle

A Simple Guide to the Refrigeration Cycle and How Air Conditioners Work

How compressors, condensers, and more work together, in layman’s terms
Gordon White
Gordon White
September 15, 2020
Four core components work together to control when refrigerant is absorbing heat, and when it is releasing heat.
Read More
Liquid Line Sight Glass

Where To Install the Liquid Line Sight Glass

Refrigeration technicians may differ on the best location
Joe Marchese
August 29, 2020
Ask several refrigeration technicians about the best location to place a sight glass, and you will probably get several different answers.
Read More
FROSTlines

Liquid Refrigerant, Dense Vapors Can Damage Compressors

To prevent these conditions, the proper amount of superheat must be set at the TXV
John Tomczyk
May 2, 2020
Refrigeration and a/c compressors are vapor compressors, meaning they are designed to compress refrigerant vapor, not liquid refrigerant.
Read More
FROSTlines

Don’t Mistake Liquid Line Restriction For an Undercharge of Refrigerant

Ensure there is no restriction before adding refrigerant to system
John Tomczyk
March 9, 2020
In a refrigeration system, service technicians often confuse a liquid line restriction with an undercharge of refrigerant.
Read More
Web Exclusive

How to Diagnose a Thermostatic Expansion Valve Failure

Tips for understanding the role of the TXV, and how to service it
Bryan Orr
January 6, 2020
This article will hopefully save the lives of a few TXVs and the pocketbooks of some customers.
Read More
There are many accessories, like the TXV pictured here, that can be added to an operating system. - The ACHR News

Refrigerant Subcoolers Can Often Increase Overall System Efficiency

Understanding when to apply refrigeration accessories is an important skill
Joe Marchese
June 10, 2019
Understanding how accessories are properly used will allow technicians to better maintain and repair refrigeration systems.
Read More
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