US 12,169,076 B2
Hydronic air-handler devices and systems
Michael A. Garrabrant, Unicoi, TN (US); Matthew C. Blaylock, Gray, TN (US); David M. Firestine, Gray, TN (US); Joseph A. Newland, Limestone, TN (US); and Adam T. Roberts, Unicoi, TN (US)
Assigned to Stone Mountain Technologies, Inc., Johnson City, TN (US)
Filed by Stone Mountain Technologies, Inc., Johnson City, TN (US)
Filed on Jan. 20, 2023, as Appl. No. 18/157,193.
Claims priority of provisional application 63/304,180, filed on Jan. 28, 2022.
Prior Publication US 2023/0243545 A1, Aug. 3, 2023
Int. Cl. F24F 11/84 (2018.01); F24F 3/044 (2006.01); F24F 5/00 (2006.01)
CPC F24F 11/84 (2018.01) [F24F 3/044 (2013.01); F24F 5/0003 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A hydronic air handler device that heats or cools air comprising:
a heat exchanger that contains a hot or cold hydronic fluid;
a blower that moves air over and/or through the heat exchanger;
a pump that circulates the hot or cold hydronic fluid;
a first vessel that contains a first hydronic fluid at greater than atmospheric pressure, air in a space above the first hydronic fluid, a first opening sealed by a removable lid, a second opening that allows the first hydronic fluid to exit the first vessel, a third opening that allows the first hydronic fluid to enter the first vessel, and a fourth opening;
a second vessel that contains a second hydronic fluid substantially at atmospheric pressure, a first opening sealed by a removable lid, and a second opening in communication with the first vessel via a first connecting line, wherein the second vessel is in communication with the fourth opening via a second connecting line;
wherein the first hydronic fluid and the second hydronic fluid may be the same or different; and
a valve that allows the second hydronic fluid to flow from the second vessel to the first vessel when pressure inside the first vessel decreases below about zero psig, and prevents the first hydronic fluid from flowing from the first vessel to the second vessel.