Part 1 of 3 

This full day webinar focuses on the unique residential loads and energy code encountered in the Dry Climate of California. The material covers the basic science behind ACCA Manual J load calculations and Manual S equipment selection. During this session, a sample plan is entered into Wrightsoft first using the 1975 code, since many homes meet these criteria it provides a touchstone for contractors in equipment sizing. The plan is then altered to meet the 2025 Energy Code. This allows attendees to compare the loads generated by Wrightsoft in Manual J and provides a practical opportunity the effect the energy code has on Equipment sizes. Manufacturer’s expanded product data sheets are reviewed, and attendees are guided to use the correct qualifiers for California Code and Climate. Several examples are covered demonstrating the correct sizing procedure and differences in how charts and tables may look different but have the same information in an alternate format. ASHRAE 62.2 Residential ventilation requirements are reviewed and are incorporated into the Wrightsoft program. Internal loads are defined for the room-by-room design based on appliances and occupancy.

Gain hands-on experience with Wrightsoft using the free 30-day trial by downloading Right-Suite® Universal Demo here.

Agenda:

• Review Manual J load calculation process
• Review Dry Climate Manual S equipment sizing steps
• Wrightsoft software – hands-on session
• Wrightsoft application – energy code comparison
• Manufacturer data and equipment selection
• Ventilation and internal loads

The objective of this course is that at the conclusion, participants will be able to:  

• Understand and apply ACCA Manual J load calculations and Manual S equipment selection principles for residential applications
• Use Wrightsoft software to accurately model residential buildings load and determine proper system sizing
• Interpret manufacturer expanded product data to select HVAC equipment that meets California climate and code requirements
• Incorporate ASHRAE 62.2 ventilation standards and internal loads into room-by-room design for improved efficiency and comfort

Continuing Education Credits:

CABEC: 6, NATE: 6