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What s Inside a TXV How Does a Thermostatic Expansion Valve Work

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Lesson extensions

Lessons List | 590 Lesson
Checking the Charge in Superheat Step by Step Used for Charging Systems without TXV s
00:05:06

Checking the Charge in Superheat Step by Step Used for Charging Systems without TXV s
Refrigerant Cycle Explained Heat Transfer Phase Changes High Low Pressure Vapor Liquid
00:01:34

Refrigerant Cycle Explained Heat Transfer Phase Changes High Low Pressure Vapor Liquid
Checking Refrigerant Charge How to Properly Attach the Gauges What to look for Before Charging
00:03:30

Checking Refrigerant Charge How to Properly Attach the Gauges What to look for Before Charging
Charging Refrigerant Step by Step Procedure to Check a R 410a Charge in an Outdoor AC unit
00:03:04

Charging Refrigerant Step by Step Procedure to Check a R 410a Charge in an Outdoor AC unit
Charging Refrigerant from your Gauge Hoses back into the System Before Disconnecting Explained
00:07:40

Charging Refrigerant from your Gauge Hoses back into the System Before Disconnecting Explained
Charging a Heat Pump at Start up or in the Winter Time What you need to Know
00:06:59

Charging a Heat Pump at Start up or in the Winter Time What you need to Know
Leaking Refrigerant Replace the Leaky Schrader Valve without Removing the Refrigerant Shown
00:05:47

Leaking Refrigerant Replace the Leaky Schrader Valve without Removing the Refrigerant Shown
AC Refrigerant Charging Superheat Measurement How to find Target Superheat for Suction Vapor Line
00:05:46

AC Refrigerant Charging Superheat Measurement How to find Target Superheat for Suction Vapor Line
Testing a Bad Honeywell General Purpose Relay and Taking Apart to See the Burn Marks
00:04:24

Testing a Bad Honeywell General Purpose Relay and Taking Apart to See the Burn Marks
Bad Refrigerant Compressor Explained and Tested in the Field
00:02:49

Bad Refrigerant Compressor Explained and Tested in the Field
Charging an AC System Low on Refrigerant in Real Time Part 2
00:09:37

Charging an AC System Low on Refrigerant in Real Time Part 2
Charging an AC System Low on Refrigerant in Real Time Part 1
00:09:47

Charging an AC System Low on Refrigerant in Real Time Part 1
R 22 Refrigerant Charging How to Measure if a System is Overcharged Fast way to Fix Subcooling
00:10:28

R 22 Refrigerant Charging How to Measure if a System is Overcharged Fast way to Fix Subcooling
General Purpose Switching Relays Mulitpurpose Relays Function Wiring Ratings Different Types
00:03:36

General Purpose Switching Relays Mulitpurpose Relays Function Wiring Ratings Different Types
Wood Stove Glass Cleaning the Simple Way Without Chemicals Shown in Real Time 2 Minutes
00:02:35

Wood Stove Glass Cleaning the Simple Way Without Chemicals Shown in Real Time 2 Minutes
Plenum Limit Switches Read the Temperature Ratings Properly Heat Tested
00:02:47

Plenum Limit Switches Read the Temperature Ratings Properly Heat Tested
Dual Capacitors How to Identify Test Wire and Read a Dual Capacitor
00:04:41

Dual Capacitors How to Identify Test Wire and Read a Dual Capacitor
Testing and Checking the MFD uF rating of HVAC Capacitors Start Capacitors and Run Capacitors
00:14:02

Testing and Checking the MFD uF rating of HVAC Capacitors Start Capacitors and Run Capacitors
Wiring an Outdoor Condenser What each of the Wires is For How it Works
00:04:26

Wiring an Outdoor Condenser What each of the Wires is For How it Works
How to Clean Out a Wood Stove without Getting Ashes In the House
00:03:08

How to Clean Out a Wood Stove without Getting Ashes In the House
Taco Zone Valve Relay Control Explained Thermostat Wiring Zone Valve Wiring Circulator Control
00:05:48

Taco Zone Valve Relay Control Explained Thermostat Wiring Zone Valve Wiring Circulator Control
Fixing Refrigerant Gauges Explained and Adjusted
00:02:07

Fixing Refrigerant Gauges Explained and Adjusted
Gas Furnace Sequence of Operation Heater Troubleshooting
00:03:24

Gas Furnace Sequence of Operation Heater Troubleshooting
Pressure Switch Troubleshooting Explained
00:03:43

Pressure Switch Troubleshooting Explained
Brazing TXV External Equalizing Tube onto Evaporator Coil Suction Line Replacement of TXV
00:08:53

Brazing TXV External Equalizing Tube onto Evaporator Coil Suction Line Replacement of TXV
How to tell if an Inducer Motor is BAD Explained Step by Step
00:04:02

How to tell if an Inducer Motor is BAD Explained Step by Step
Explained Saturation Temperature and Pressure Superheat Subcooling
00:05:57

Explained Saturation Temperature and Pressure Superheat Subcooling
How to Braze with Nitrogen The Process up Close from Start to Finsh
00:06:04

How to Braze with Nitrogen The Process up Close from Start to Finsh
Taco Zone Valve Wiring Voltage and water flow Tested and Proved The Water in the top falls Through
00:04:59

Taco Zone Valve Wiring Voltage and water flow Tested and Proved The Water in the top falls Through
UEI DL389 Multimeter Review Testing each function of the Multimeter
00:03:56

UEI DL389 Multimeter Review Testing each function of the Multimeter
Refrigerant Charging Checking the R 22 Refrigerant Charge on AC Condensor Subcooling Method
00:02:03

Refrigerant Charging Checking the R 22 Refrigerant Charge on AC Condensor Subcooling Method
Reading Refrigerant Gauges Pressure Temperature Relationship What Refrigerant is in the Tank
00:04:52

Reading Refrigerant Gauges Pressure Temperature Relationship What Refrigerant is in the Tank
Explaination of How to Pump Down an Air Conditioner including Proper Guidelines
00:03:52

Explaination of How to Pump Down an Air Conditioner including Proper Guidelines
Step by Step instructions on how to properly Check Refrigerant Charge
00:04:49

Step by Step instructions on how to properly Check Refrigerant Charge
Explained HVAC Furnace Blower Motor Wire Color Speeds Color Code How to Test to Verify Speeds
00:03:22

Explained HVAC Furnace Blower Motor Wire Color Speeds Color Code How to Test to Verify Speeds
Contactors Explained and Tested Wiring Troubleshooting Problems Ratings and Visual Power Up
00:05:58

Contactors Explained and Tested Wiring Troubleshooting Problems Ratings and Visual Power Up
Two Capacitors Connected to Increase mfd uF For Emergencies to get the Customer Running
00:02:10

Two Capacitors Connected to Increase mfd uF For Emergencies to get the Customer Running
Wiring a Single 24v Thermostat to Control Two HVAC Systems Heater and Air Conditioner
00:03:21

Wiring a Single 24v Thermostat to Control Two HVAC Systems Heater and Air Conditioner
How to Wire a Pro 3000 Thermostat for a Heat Pump and What the Wire Colors Mean
00:05:56

How to Wire a Pro 3000 Thermostat for a Heat Pump and What the Wire Colors Mean
How to Wire a Thermostat for a Furnace and AC Unit
00:05:42

How to Wire a Thermostat for a Furnace and AC Unit
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Course Description

Pressure switch troubleshooting course, in this course we delve into the critical aspects of pressure switch troubleshooting, essential for maintaining the functionality and safety of various systems, including HVAC units, boilers, and industrial equipment. Participants will learn the fundamental principles of pressure switch operation, focusing on how these devices monitor and control system pressure. The course covers common pressure switch issues such as faulty calibration, electrical connectivity problems, and mechanical failures. Through detailed theoretical insights and practical demonstrations, learners will develop skills to diagnose and resolve issues efficiently. This includes testing pressure switch settings, inspecting for leaks or blockages, and verifying electrical connections. Emphasis is placed on safety protocols to prevent hazards such as system overpressure and operational failures. Additionally, the course provides preventive maintenance tips to ensure pressure switches function optimally. Whether you're a beginner or an experienced technician, this course equips you with the comprehensive knowledge and hands-on experience necessary to troubleshoot and maintain pressure switches, ensuring reliable and safe operation of various systems.
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