AHRI and ASHRAE 90.1 Apply to Plate and Frame Heat Exchanger (1 PDH)
2026-05-08 12:00 - 13:00 (America/New_York) | online
Date: May 8, 2026
Time: 12 pm – 1 pm
Location: Virtual
PDH: 1.0 PDH
Trainer: Chris Abbott

AHRI 400 definition
Scope of AHRI 400
AHRI certify all
ASHRAE 90.1
Economizer and ASHRAE 90.1
State adopted ASHRAE 90.1
US Climate zone
Sample of economizer

Who should attend – Plumbing & HVAC engineers
1.0-PDH Duration: 1-hour

Basic Hydronics – Most Frequent Questions, Comments and Concerns (1 PDH)
2026-05-22 12:00 - 13:00
Date: May 22, 2026
Time: 12 pm – 1 pm
Location: Virtual
PDH: 1.0
Trainer: Chris Abbott

-Pumps -System curve
-Head overestimation impact
-Minimum flow
-Expansion tank -Expansion tank types
-System pressure
-Tank location
-Plate and frame heat exchangers
-Fouling factor and excess surface area
-Balancing
-Why balancing
-Direct and reverse return system
-Impact on variable speed

Who should attend – Plumbing and HVAC engineers
1.0-PDH Time: 1-hour

The Art and Science of Domestic Hot Water Design (1 PDH)
2026-06-19 12:00 - 13:00
Date: June 19, 2026
Time: 12 pm – 1 pm
Location: Virtual
PDH: 1.0
Trainer: Robert Barrett
This presentation covers the fundamentals of heat transfer, dissecting each variable. It covers fixture accounting, occupancy assumptions, fixture schedules, DHW percentages and cold-water requirements, fixture units, diversity factors, and high level assumptions.
Take-away:

Learn to be comfortable with the basics of heat transfer as it relates to production of potable hot water
Discover a means of calculating domestic hot water loads that allows the engineer to record all of the assumptions and directly calculate the DHW demand (no more “black-box” methods).
Gain greater understanding in what goes into determining diversity factors, assumptions on occupancy and other human factor elements.
Compare ASHARAE sizing methods to fixture flow and usage methods of sizing DHW demand.

Who should attend: Plumbing & HVAC design engineers
PDH-1.0 Time: 1.0 hours PS#20218082
