Online HVAC Prep Course: Metering Devices/ Expansion Devices
Online HVAC Prep Course: Metering Devices
Lesson 7 Metering Devices
In lesson 7 of our Online HVAC Prep Course, we discuss the basics of Metering Devices and the purpose of a Metering Device.
We will show you the 5 most common types of Metering Devices and explain their operation.
Mainly, we cover the Thermal Expansion Valve (TXV), its purpose and operation. We discuss the parts of the valve and what each part of the valve does to maintain the system operation at its peak performance. We look at the different connections you find on a TXV. We go over the things you need to know about a TXV, namely, type of refrigerant, tonnage, and purpose (Air conditioning or refrigeration). Our Online HVAC Prep Course, after touching on the basics of the valve operation, we discuss what components might fail in the valve and what happens when they do.
In Online HVAC Prep Course: Metering Devices, we then discuss maintenance that may need to be performed and what to look for when inspecting a TXV. We follow it with the discussion on how to adjusts a TXV and what final checks need to be done after installing a TXV.
Then, our Online HVAC Prep Course discusses the Electronic Expansion Valve (EXV) and its basic parts, what they do, what the valve is designed to do and the similarities between the TXV and the EXV.
In Online HVAC Prep Course: Metering Devices, we move on to other Metering Devices like the Automatic Expansion Valve (AXV), Capillary Tube and Piston. We show you what they look like, how they operate and things to look for during maintenance and repairs.
After viewing Lesson 7 of our Online HVAC Prep Course a student should be able to discuss what is needed to diagnose and troubleshoot problems with Metering Devices.
We are excited to have you in our virtual course and looking forward to helping you in furthering your education. The best way to take this course is in the sequence outlined below for it flows logically and builds on the previously presented material:
General Safety Practice while working with AC systems
All about Thermodynamics
Refrigeration and Refrigerants
Commercial Refrigeration – All You Need To know About Evaporators
All about Condensers in a Refrigeration System
All about Compressors in a Refrigeration System
Commercial Refrigeration: Expansion Devices / Metering Devices
Commercial Refrigeration: Refrigerant System Components
Please also check a complete Online Prep Course for AC Basic and save. If you have a particular interest in a specific topic presented in a certain lesson, you’re welcome to take this lesson provided you are not an HVAC novice and have a good grasp on the topics preceding the lesson.
- Lectures 4
- Quizzes 3
- Duration 2 hours
- Skill level All levels
- Language English
- Students 70
- Certificate Yes
- Assessments Yes
- Metering Devices. Expansion Devices/Course Materials
- Part 1. Types of Metering devises, TXV Thermostatic Expansion Valve, What they do, what they look like and their operating parts
- Quiz. Metering Devices/ Expansion Devices. Part 1.
- Part 2. Servicing TXVs, Sensing Bulbs and their Location, EXV Electronic Expansion Valves and their Operation, AXV Automatic Expansion Valve, Capillary tubes, Pistons
- Quiz. Metering Devices/ Expansion Devices. Part 2.
- Part 3. Metering Devices/ Expansion Devices
- Quiz. Metering Devices/ Expansion Devices. Part 3