Attendees gather at AHR Expo in Dallas.

St. Louis-based Emerson Climate Technologies has made materials from its presentations at AHR Expo available on its website.

Emerson held several seminars at its booth during in the event, covering topics such as modulating technologies, refrigerants, compressor electronics, industry standards, mobile apps, aftermarket products and technician training. For more information, visit www.emersonclimate.com/en-us and search “AHR presentations.”

AHR Expo 2013, held January 28-30 in Dallas, attracted more than 51,000 attendees, including 34,000 visitors who filled the aisles. Products and technologies were on display from 1,951 exhibiting companies.