Arkansas HVACR NewsMagazine January 2020

S tate, National, Chapter News Tech News

FURNACE AIR TEMPERATURE RISE Bryan Orr , HVACR School.com

We begin 2020 in special recognition of Bryan Orr as a contributor of excellent articles helping Arkansas techs learnmore and understand their craft. We appreciate Bryan’s bi-line on his podcast, “Founder/Podcaster/Dad of 10. A lifelong learner, proud technician and advocate for the HVAC/R Trade.”

Published Dec 8, 19

range like 50-80° or 45-75 °. Those two numbers are the lowest recommended temperature rise and the highest allowed temperature rise through the furnace. This is usually a 30° difference. When possible we want to get the rise toward the center of that range through a combination of proper commissioning practices, primarily setting the airflow properly in heat. Air temperature rise is the difference between the temperature of the return and the heated supply air from the furnace. Temperature rise must be

Every gas furnace data plate/tag has a specification for the temperature rise through that furnace. It is shown in a

measured during installation and must be within the range on the furnace rating plate. This is important not only