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Cooling Load Calculations and Principles

COURSE NO: M06-004
Cooling Load Calculations and Principles
Course Highlights

This online engineering PDH course provides a procedure for preparing a manual calculation for cooling load using CLTD/CLF method suggested by ASHRAE and includes two detailed examples. For more advanced methods such as TFM, the reader should refer to ASHRAE and other handbooks.


Heating and cooling load calculations are carried out to estimate the required capacity of heating and cooling systems, which can maintain the required conditions in the conditioned space. To estimate the required cooling or heating capacities, one has to have information regarding the design indoor and outdoor conditions, specifications of the building, specifications of the conditioned space, and any special requirements of the particular application.


Generally, heating and cooling load calculations involve a systematic and stepwise procedure, which account for all the building energy flows. In practice, a variety of methods ranging from simple rules-of-thumb to complex transfer function methods are used to arrive at the building loads.


This 6 PDH online course is applicable to mechanical engineers, design and construction personnel, technical staff and facility personnel who are interested in gaining a better understanding in cooling load calculations and principles.

Learning Objectives

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

  • Understand the basic terminology and definitions related to air conditioning load calculations
  • Explain the differences between heating and cooling load design considerations
  • Explain the difference between 1) space heat gain v/s cooling load 2) space cooling v/s cooling load and 3) external loads v/s internal loads
  • Differentiate between sensible and latent loads
  • List commonly used methods for estimating cooling loads
  • Estimate the internal and external cooling loads using CLTD/CLF method from building specifications, design indoor and outdoor conditions, occupancy etc.
  • Describe various equations and the information sources to determine conductive load through opaque building elements.
  • Describe various equations and information sources to determine the solar transmission load through glazing.
  • Describe various equations and information sources to determine the internal load due to people, lights and power appliances.
  • Determine the supply air flow rate
  • Learn by examples the detailed methodology to cooling load calculations
  • Learn the functional parameters of software programs such as TRACE 700 and CHVAC
Course Document

In this professional engineering CEU course, you need to review the course document titled "Cooling Load Calculations and Principles".

To view, print and study the course document, please click on the following link(s):
Cooling Load Calculations and Principles (1.8 MB)
Course Quiz
Once you complete your course review, you need to take a multiple-choice quiz consisting of thirty (30) questions to earn 6 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.

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