US 11,859,861 B2
System and method for heating and cooling
Miki Yamada, Osaka (JP); Junichi Shimoda, Osaka (JP); Takamune Okui, Osaka (JP); Yuko Ishida, Osaka (JP); Joseph Kelly Hearnsberger, Katy, TX (US); David Palazzolo, Houston, TX (US); and Sriram Venkat, Katy, TX (US)
Assigned to Daikin Industries, Ltd., Osaka (JP); and Goodman Manufacturing Company, L.P, Waller, TX (US)
Filed by Daikin Industries, Ltd., Osaka (JP); and Goodman Manufacturing Company, L.P., Waller, TX (US)
Filed on Feb. 7, 2023, as Appl. No. 18/165,377.
Application 18/165,377 is a continuation of application No. 17/720,828, filed on Apr. 14, 2022, granted, now 11,578,880.
Application 17/720,828 is a continuation of application No. 16/250,951, filed on Jan. 17, 2019, granted, now 11,313,568, issued on Apr. 26, 2022.
Claims priority of provisional application 62/619,779, filed on Jan. 20, 2018.
Prior Publication US 2023/0175711 A1, Jun. 8, 2023
Int. Cl. F24F 3/08 (2006.01); F24F 1/00 (2019.01); F24F 3/00 (2006.01)
CPC F24F 3/08 (2013.01) [F24F 1/00 (2013.01); F24F 2003/008 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method of providing conditioned air to a structure, comprising:
flowing a refrigerant through a side-flow unit external to the structure, the side-flow unit comprising an outdoor coiled-tube heat exchanger comprising first tubing with an outer diameter less than or equal to eight millimeters (8 mm);
flowing the refrigerant through an indoor coiled-tube heat exchanger disposed within the structure and coupled to the outdoor heat exchanger, the indoor heat exchanger comprising second tubing with an outer diameter less than ⅜ inch, wherein the outer diameter of the first tubing is smaller than the outer diameter of the second tubing;
circulating air from the structure over the indoor heat exchanger using an airflow circulation system and then routing the air back to the structure via ductworks; and
reducing a pressure of the refrigerant using an electronic expansion valve in fluid communication with at least one of the outdoor or indoor heat exchangers.