US Patent Issued to Tyco Fire & Security on Sept. 1 for "Low charge series chiller and free cooling" (Maryland Inventor)

ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,723,781, issued on Sept. 1, was assigned to Tyco Fire & Security GmbH (Neuhausen am Rheinfall, Switzerland).

"Low charge series chiller and free cooling" was invented by Thomas P. Carter (Olney, Md.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A heating, ventilation, air conditioning, and/or refrigeration (HVAC&R) system includes a first modular central utility plant (mCUP) including a first chiller and a first free cooling heat exchanger, and a second mCUP including a second chiller and a second free cooling heat exchanger. The HVAC&R system also includes at least one dry cooler assembly having an air cooled heat exchanger with one or more fans, wher...