Building Maintenance Training

Refrigeration

Refrigeration Courses

Building Maintenance Training

Duration: 0.31 Hrs

Course Level: Advanced
Languages: English
Capability: Audio, Video, MobileReady, Responsive

Centrifugal chillers are used in medium- and large-sized buildings to provide comfort cooling. Many of them use the vapor compression refrigeration cycle, including centrifugal compressors and plate-and-frame or shell-and-tube heat exchangers, to produce chilled water that can be pumped to AHUs and FCUs located in different spaces throughout the building. At each AHU or FCU, the chilled water passes through a cooling coil while a fan blows air over the coil to produce cool air for the enclosed space. The chilled water then returns to the chiller unit, where it is re-cooled, and the process is repeated. Like other building systems, chiller systems require regular monitoring and maintenance in order to maintain their capacity and efficiency and avoid costly breakdowns and repairs. However, issues and breakdowns still occur. A good understanding of chiller design and operation is critical when troubleshooting a chiller system. This course discusses some common issues for centrifugal chillers and the troubleshooting steps and techniques that can be used to diagnose and determine the cause if a problem occurs.

Learning Objectives

By the end of this course, you will be able to:

  • List the issues that can lead to chiller surge or cause a chiller to indicate “No Water Flow”
  • Discuss the purpose of a purge unit
  • Describe how moisture contamination, low load conditions, and low ambient temperatures affect chiller operations
  • Explain the term “chiller condenser approach”

Duration: 0.50 Hrs

Course Level: Intermediate
Languages: English
Capability: Audio, Video, MobileReady, Responsive

Type I certification requires that technicians know how to safely and properly evacuate refrigerants from “small appliances” containing 5 pounds or less of refrigerant using the appliance’s compressor, system pressure, or self-contained recovery equipment. This interactive online course will cover these evacuation procedures, as well as how to deal with contaminants in a system and safety considerations.

Learning Objectives

By the end of this course, you will be able to:

  • Define “small appliance” per the EPA Section 608 Type I Certification exam
  • Explain how to use pressure and temperature readings to identify a refrigerant
  • List the evacuation requirements for small appliances with or without an operable compressor using recovery equipment manufactured both before and after November 15, 1993
  • Identify safety considerations for working with or around refrigerants, recovery equipment, and HVAC/R systems

Duration: 0.50 Hrs

Course Level: Intermediate
Languages: English
Capability: Audio, WebCast

In air conditioning (AC) and refrigeration systems, the refrigerant is the substance that circulates through the equipment, transporting heat from one area to another. Refrigerants must be handled and used carefully as many of them present hazards to the environment and human health. This interactive online course discusses safe methods of working with refrigerants and refrigeration systems.

Learning Objectives

By the end of this course, you will be able to:

  • Describe how a manifold gauge set can be used to monitor, service, or troubleshoot a refrigeration system
  • Discuss the challenges of using replacement refrigerants and the problems associated with mixing refrigerants
  • List the risks of exposure to refrigerants and control measures that can be used
  • Describe methods of refrigerant leak detection and leak prevention
  • Describe the requirements for refrigerant recovery tanks and cylinders

Duration: 0.50 Hrs

Course Level: Intermediate
Languages: English
Capability: Audio, Video, MobileReady, Responsive

Did you know HVAC and Refrigeration technicians who maintain, service, repair, or dispose of medium, high, and very high pressure appliances containing more than five pounds of a controlled refrigerant must pass the EPA’s Section 608 Type II certification exam? Type II certification requires that technicians understand several topics related to these systems, including leak detection, leak repair, evacuation requirements, recovery techniques, refrigeration, and safety. This interactive online course will cover the appliances included in the EPA Section 608 Type II certification exam, explain the techniques that are used to recover refrigerants, list evacuation requirements, and cover safety considerations for working with or around refrigerants, recovery equipment, and HVAC and Refrigeration systems.

Learning Objectives

By the end of this course, you will be able to:

  • Describe the appliances covered by the EPA Section 608 Type II certification exam
  • Explain the techniques that are used to recover refrigerants from Type II appliances
  • List the evacuation requirements for Type II appliances
  • Identify safety considerations for working with or around refrigerants, recovery equipment, and H-vac and refrigeration systems

Duration: 0.50 Hrs

Course Level: Fundamental
Languages: English
Capability: Audio, Video, MobileReady

The refrigeration cycle is used in many different applications to transfer heat from one fluid to another. One common application is to provide cooling in HVAC systems. This interactive online course discusses the theory, equipment, and processes related to the vapor-compression refrigeration cycle.

Learning Objectives

By the end of this course, you will be able to:

  • Describe the basic refrigeration cycle
  • Describe the heat exchangers commonly used in HVAC systems
  • Describe the functionality of the two types of cooling systems
  • Explain thermodynamics

Duration: 0.50 Hrs

Course Level: Fundamental
Languages: English
Capability: Audio, Video, MobileReady

Did you know many refrigerants are harmful to human health and/or the environment? In air conditioning and refrigeration systems, the refrigerant is the substance that circulates through the equipment, transporting heat from one area to another. This interactive online course covers how to execute a refrigerant management program to be compliant with AHJ requirements, identifies EPA Regulations, and describe record keeping requirements.

Learning Objectives

By the end of this course, you will be able to:

  • Describe how to execute a refrigerant management program to be compliant with AHJ (Authority Having Jurisdiction) requirements.
  • Identify EPA Regulations
  • Describe record keeping requirements

Duration: 0.50 Hrs

Course Level: Fundamental
Languages: English
Capability: Audio, Video, MobileReady

In the vapor-compression refrigeration cycle, a “refrigerant” alternately absorbs and rejects heat as it circulates through four components – an evaporator, compressor, condenser, and metering device – changing pressure, temperature, and phases along the way. This interactive online course discusses different types of refrigeration systems and their components. It also discusses metering devices, compressors, and non-condensable gases.

Learning Objectives

By the end of this course, you will be able to:

  • List the components of a refrigeration system
  • Describe the purpose of each of the key metering devices used in a refrigeration system
  • Discuss the purpose of the purge unit
  • Explain the differences between hermetic, serviceable hermetic, and open compressors

Duration: 0.50 Hrs

Course Level: Fundamental
Languages: English
Capability: Audio, Video, MobileReady

Did you know the most common method of refrigeration is the vapor-compression refrigeration cycle? Refrigeration systems are used in many different applications to transfer heat from fluid in one area to fluid in another area, where the term “fluid” can refer to a liquid or gas. This interactive online course covers the three laws of thermodynamics, the operation of the four components of a basic refrigeration system, thermal energy transfer, and the maintenance procedures to maintain equipment efficiency.

Learning Objectives

By the end of this course, you will be able to:

  • Define the three laws of thermodynamics
  • Explain the operation of the four components of a basic refrigeration system
  • Describe thermal energy transfer
  • List the maintenance procedures to maintain equipment efficiency