US 11,852,372 B2
Auxiliary heat exchanger for HVAC system
Anil V. Bhosale, District Satara (IN); Ketan S. Khedkar, Pune (IN); Nikhil N. Naik, Ratnagiri (IN); Hambirarao S. Sawant, Belgaum (IN); and Neelkanth S. Gupte, Katy, TX (US)
Assigned to Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed by Johnson Controls Tyco IP Holdings LLP, Milwaukee, WI (US)
Filed on Jul. 21, 2022, as Appl. No. 17/870,442.
Application 17/870,442 is a continuation of application No. 16/366,861, filed on Mar. 27, 2019, granted, now 11,397,014.
Claims priority of provisional application 62/824,078, filed on Mar. 26, 2019.
Prior Publication US 2022/0357056 A1, Nov. 10, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. F24F 3/044 (2006.01); F24F 1/0323 (2019.01); F24F 11/84 (2018.01); F24F 13/20 (2006.01); F24F 13/30 (2006.01)
CPC F24F 3/044 (2013.01) [F24F 1/0323 (2019.02); F24F 11/84 (2018.01); F24F 13/20 (2013.01); F24F 13/30 (2013.01); F24F 2221/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A heating, ventilation, and/or air conditioning (HVAC) system, comprising:
a housing comprising:
a wall configured to be exposed to an ambient environment external to a building serviced by the HVAC system, wherein the wall is configured to block air from flowing therethrough; and
an outlet configured to discharge an air flow from the housing toward a space within the building;
a first heat exchanger disposed within the housing, wherein the first heat exchanger is configured to direct a refrigerant therethrough;
a second heat exchanger configured to direct the refrigerant therethrough, wherein the second heat exchanger comprises a coil coupled to the wall, and the coil is configured to transfer heat between the wall and the refrigerant directed through the second heat exchanger; and
a third heat exchanger configured to receive the refrigerant from the second heat exchanger.