Terminology talk at the AHR Expo focused on variable-speed compressors, electronically commutated motors (ECMs), and variable-capacity systems as well as diagnostics and troubleshooting tools for contractors.
All correct answers will be entered into a drawing. The winner will receive a Fieldpiece LT-17A digital multimeter. The answer to this riddle, and the next HVACR Service Ticket column, is scheduled to appear in a June 2015 issue of The NEWS.
While those familiar with biomass heating are acutely aware of its numerous benefits and versatile applications, others remain unfamiliar with the recent technological advances that have made biomass heating an efficient, viable option for many customers.
In an effort to make it easier for technicians to install, service, diagnose, and troubleshoot HVACR equipment, ACCA’s Board of Directors adopted a motion “to implore the manufacturers of HVAC equipment to develop and implement open [nonproprietary], universal, onboard diagnostic [OBD] communication protocols.”