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Selection Tips for Air Conditioning Systems

COURSE NO: M04-026
Selection Tips for Air Conditioning Systems
Course Highlights

This online engineering PDH course provides comprehensive information on the air-conditioning cooling systems. It details the type and characteristics of commonly used cooling systems with illustrations, advantages and disadvantages.


Heating, ventilating, and air conditioning (HVAC) of buildings is accomplished in many ways, depending on the size, configuration, and location of the buildings and the degree of environmental control needed. Small simple facilities can be cooled with a localized cooling unit whereas larger facilities employ several large units or centralized systems.


Air conditioning system types are broken down into two types: direct expansion (DX) systems, in which there is direct heat exchange between the building air and the refrigerant, and chilled water systems that utilize chilled water as an intermediate heat exchange medium to transfer heat from the building air to the refrigerant. It is useful to know what an ideal HVAC system would look like. Although compromises sometimes have to be made, they should be made with the knowledge of how and why they are imperfect.


This 4 PDH online course is applicable to HVAC engineers, facility engineers, architects, environmentalists, operations and maintenance personnel, as well as consultants and contractors who construct, build and manage facilities.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Learn the different types of cooling systems - DX and Chilled water systems
  • Understand the efficiency terms and the rating of cooling systems
  • Understand the key factors in the selection of DX systems, their advantages and limitations
  • Understand the key factors in the selection of chilled water systems, their advantages and limitations
  • Understand the key factors determining the heat rejection systems
  • Describe five common methods of heat rejection with advantages and limitations
Course Document

In this professional engineering CEU course, you need to review the document titled, "Selection Tips for Air Conditioning Systems" .

To view, print and study the course document, please click on the following link(s):
Selection Tips for Air Conditioning Systems (1.3 MB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of twenty (20) questions to earn 4 PDH credits. The quiz will be based on the entire document.
The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: