–
October 8, 2026
Date: October 8, 2026
Location: LG, 770 The City Drive S, Suite 1100 Orange, CA 92868
How to Perform a Residential Heating and Cooling Load Calculation Using ACCA Manual J Procedures
Description
Residential heating and cooling load calculations are the essential first step in specifying right-sized heating and cooling equipment. The accuracy of the calculation is only as good as the inputs, and the inputs are only as good as your knowledge of the ACCA Manual J procedures. This training will recap what a residential load calculation is, why a load calculation is an essential step in achieving indoor thermal comfort as well as successful electrification. The majority of the day will be used to teach you how to do a residential heating and cooling load calculation per ACCA Manual J procedures.
Key topics include:
- What a heating and cooling load calculation is
- What the ultimate goal of the load calculation is
- What measurements are needed and the measurement procedures
- Choosing appropriate design temperature conditions
- How to describe the construction details that are needed for the load calculation procedure
- Discussion of the challenges of accurately describing construction components
- Dispel the myth of a load calculation leading to possible under-sizing HVAC equipment
- Explain inherent safety factors within the ACCA Manual J procedures
- How to use the load calculation to guide energy retrofit improvements
- How to review results and identify errors before moving on to equipment selection
What Attendees Will Learn:
By the end of this training, attendees will be able to:
- Collect and document the measurements and building characteristics needed for accurate results.
- Select appropriate design temperature conditions and understand their impact on equipment sizing.
- Avoid common load calculation errors and identify issues before equipment selection.
- Understand the built-in safety factors within Manual J and dispel common myths about undersizing equipment.
- Use load calculation results to support heat pump sizing, electrification projects, and energy retrofit recommendations.
- Improve HVAC system design decisions that enhance comfort, efficiency, and overall system performance.
This course focuses on practical application, helping participants confidently perform and interpret load calculations that lead to properly sized equipment and better project outcomes.
Register by clicking the link below: